{"id":1034,"date":"2026-04-26T08:39:22","date_gmt":"2026-04-26T06:39:22","guid":{"rendered":"https:\/\/www.docsnet.it\/?p=1034"},"modified":"2026-04-26T08:50:42","modified_gmt":"2026-04-26T06:50:42","slug":"i-tipi-di-raid-guida-completa-per-scegliere-la-configurazione-giusta","status":"publish","type":"post","link":"https:\/\/www.docsnet.it\/index.php\/i-tipi-di-raid-guida-completa-per-scegliere-la-configurazione-giusta\/","title":{"rendered":"I tipi di RAID: guida completa per scegliere la configurazione giusta"},"content":{"rendered":"<p><!-- ARTICOLO RAID - Incolla questo codice in un blocco HTML di Gutenberg --><\/p>\n<div style=\"font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif; color: #1a1a1a; font-size: 16px; line-height: 1.7; max-width: 100%;\">\n<p><!-- META --><\/p>\n<p style=\"font-size: 13px; color: #777; margin: 0 0 1rem 0;\"><span style=\"background: #e6f1fb; color: #0c447c; font-size: 12px; font-weight: bold; padding: 3px 10px; border-radius: 20px; margin-right: 8px;\">Storage &amp; Infrastruttura<\/span><br \/>\nAprile 2025 \u00a0\u00b7\u00a0 12 min di lettura<\/p>\n<p><!-- INTRO --><\/p>\n<p style=\"margin: 0 0 .9rem 0;\">RAID sta per <em>Redundant Array of Independent Disks<\/em>: una tecnologia che permette di combinare pi\u00f9 dischi fisici in un unico volume logico, con obiettivi che variano dalla pura velocit\u00e0 alla massima ridondanza. Non esiste una configurazione universalmente migliore \u2014 ogni tipo ha il suo caso d&#8217;uso ideale.<\/p>\n<p style=\"margin: 0 0 .9rem 0;\">In questa guida analizziamo nel dettaglio tutti i livelli RAID principali, con schede tecniche, pro e contro, e una tabella comparativa finale per aiutarti a scegliere.<\/p>\n<p><!-- LEGENDA --><\/p>\n<div style=\"background: #f5f5f5; border: 1px solid #e0e0e0; border-radius: 8px; padding: .75rem 1rem; margin: 1rem 0; font-size: 13px; color: #555; display: flex; gap: 10px; flex-wrap: wrap; align-items: center;\"><strong style=\"color: #1a1a1a;\">Legenda:<\/strong><br \/>\n<span style=\"background: #b5d4f4; color: #0c447c; font-weight: bold; padding: 2px 8px; border-radius: 20px; font-size: 11px;\">D = dati<\/span><br \/>\n<span style=\"background: #c0dd97; color: #27500a; font-weight: bold; padding: 2px 8px; border-radius: 20px; font-size: 11px;\">P = parit\u00e0<\/span><br \/>\n<span style=\"background: #f5c4b3; color: #712b13; font-weight: bold; padding: 2px 8px; border-radius: 20px; font-size: 11px;\">M = mirror<\/span><br \/>\n<span style=\"background: #faeeda; color: #633806; font-weight: bold; padding: 2px 8px; border-radius: 20px; font-size: 11px;\">S = spare<\/span><br \/>\n<span style=\"background: #fcebeb; color: #791f1f; font-weight: bold; padding: 2px 8px; border-radius: 20px; font-size: 11px;\">F = guasto<\/span><\/div>\n<hr style=\"border: none; border-top: 1px solid #e0e0e0; margin: 2rem 0;\" \/>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 RAID 0 \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<div style=\"border: 1px solid #e0e0e0; border-radius: 12px; padding: 1.5rem; margin: 1.5rem 0; background: #fff;\"><span style=\"background: #fcebeb; color: #791f1f; font-size: 12px; font-weight: bold; padding: 4px 12px; border-radius: 20px;\">Nessuna ridondanza<\/span><\/p>\n<h3 style=\"font-size: 1.2rem; font-weight: bold; color: #1a1a1a; margin: .75rem 0 .25rem 0;\">RAID 0 \u2014 Striping<\/h3>\n<p style=\"font-size: .875rem; color: #777; margin: 0 0 1rem 0;\">Massima velocit\u00e0, zero protezione<\/p>\n<p style=\"margin: 0 0 1rem 0; font-size: 15px;\">I dati vengono suddivisi in blocchi (stripe) e scritti in parallelo su tutti i dischi. Il risultato \u00e8 un aumento delle prestazioni proporzionale al numero di dischi, ma se anche un solo disco si guasta l&#8217;intero array \u00e8 irrecuperabile senza backup esterno.<\/p>\n<p><!-- DISK VIZ --><\/p>\n<div style=\"margin: 1rem 0; font-size: 13px; color: #555;\">\n<div style=\"display: flex; align-items: center; gap: 6px; margin-bottom: 6px; flex-wrap: wrap;\"><span style=\"min-width: 70px; font-size: 12px; color: #777;\">Disco 1<\/span><\/p>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; flex-direction: column; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c; text-align: center;\">A1<\/div>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; flex-direction: column; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c; text-align: center;\">A3<\/div>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; flex-direction: column; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c; text-align: center;\">A5<\/div>\n<\/div>\n<div style=\"display: flex; align-items: center; gap: 6px; flex-wrap: wrap;\"><span style=\"min-width: 70px; font-size: 12px; color: #777;\">Disco 2<\/span><\/p>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; flex-direction: column; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c; text-align: center;\">A2<\/div>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; flex-direction: column; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c; text-align: center;\">A4<\/div>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; flex-direction: column; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c; text-align: center;\">A6<\/div>\n<\/div>\n<p style=\"font-size: 11px; color: #185fa5; font-style: italic; margin: .4rem 0 0 76px;\">I dati vengono scritti in stripe alternati su tutti i dischi<\/p>\n<\/div>\n<p><!-- META GRID --><\/p>\n<div style=\"display: grid; grid-template-columns: repeat(5,1fr); gap: 8px; margin: 1rem 0;\">\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Dischi min.<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">2<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Capacit\u00e0 utile<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">100%<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Guasti tollerati<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">0<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Lettura<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">Molto alta<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Scrittura<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">Molto alta<\/div>\n<\/div>\n<\/div>\n<p><!-- PRO\/CONS --><\/p>\n<table style=\"width: 100%; border-collapse: collapse; border-radius: 8px; overflow: hidden; font-size: 13px;\">\n<tbody>\n<tr>\n<td style=\"width: 50%; background: #eaf3de; padding: .75rem 1rem; border: 1px solid #c8e6c9; vertical-align: top;\"><strong style=\"color: #3b6d11; display: block; margin-bottom: .5rem;\">\u2714 Vantaggi<\/strong><\/p>\n<ul style=\"margin: 0 0 0 1.2rem; padding: 0; color: #27500a;\">\n<li style=\"margin-bottom: .3rem;\">Prestazioni massime in lettura e scrittura<\/li>\n<li style=\"margin-bottom: .3rem;\">Tutta la capacit\u00e0 disponibile (100%)<\/li>\n<li style=\"margin-bottom: .3rem;\">Setup semplice e basso costo<\/li>\n<\/ul>\n<\/td>\n<td style=\"width: 50%; background: #fcebeb; padding: .75rem 1rem; border: 1px solid #ffcdd2; vertical-align: top;\"><strong style=\"color: #a32d2d; display: block; margin-bottom: .5rem;\">\u2718 Svantaggi<\/strong><\/p>\n<ul style=\"margin: 0 0 0 1.2rem; padding: 0; color: #791f1f;\">\n<li style=\"margin-bottom: .3rem;\">Nessuna tolleranza ai guasti<\/li>\n<li style=\"margin-bottom: .3rem;\">Un disco guasto = tutti i dati persi<\/li>\n<li style=\"margin-bottom: .3rem;\">Non adatto per dati critici<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"font-size: 13px; color: #777; margin: .9rem 0 0 0; padding-top: .75rem; border-top: 1px solid #eee;\"><strong style=\"color: #1a1a1a;\">Uso ideale:<\/strong> <em>Editing video, cache temporanea, ambienti di test dove le prestazioni contano pi\u00f9 della sicurezza.<\/em><\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 RAID 1 \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<div style=\"border: 1px solid #e0e0e0; border-radius: 12px; padding: 1.5rem; margin: 1.5rem 0; background: #fff;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 12px; font-weight: bold; padding: 4px 12px; border-radius: 20px;\">Alta ridondanza<\/span><\/p>\n<h3 style=\"font-size: 1.2rem; font-weight: bold; color: #1a1a1a; margin: .75rem 0 .25rem 0;\">RAID 1 \u2014 Mirroring<\/h3>\n<p style=\"font-size: .875rem; color: #777; margin: 0 0 1rem 0;\">Copia identica su ogni disco<\/p>\n<p style=\"margin: 0 0 1rem 0; font-size: 15px;\">Ogni disco \u00e8 una copia esatta degli altri. Se un disco si guasta, il sistema continua a funzionare senza interruzioni. Il recupero \u00e8 immediato: si sostituisce il disco guasto e si ricostruisce il mirror. La capacit\u00e0 utile \u00e8 per\u00f2 limitata a quella di un singolo disco.<\/p>\n<div style=\"margin: 1rem 0; font-size: 13px;\">\n<div style=\"display: flex; align-items: center; gap: 6px; margin-bottom: 6px; flex-wrap: wrap;\"><span style=\"min-width: 70px; font-size: 12px; color: #777;\">Originale<\/span><\/p>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">A<\/div>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">B<\/div>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">C<\/div>\n<\/div>\n<div style=\"display: flex; align-items: center; gap: 6px; flex-wrap: wrap;\"><span style=\"min-width: 70px; font-size: 12px; color: #777;\">Mirror<\/span><\/p>\n<div style=\"width: 42px; height: 48px; background: #f5c4b3; border: 1px solid #993c1d; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #712b13;\">A<\/div>\n<div style=\"width: 42px; height: 48px; background: #f5c4b3; border: 1px solid #993c1d; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #712b13;\">B<\/div>\n<div style=\"width: 42px; height: 48px; background: #f5c4b3; border: 1px solid #993c1d; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #712b13;\">C<\/div>\n<\/div>\n<p style=\"font-size: 11px; color: #185fa5; font-style: italic; margin: .4rem 0 0 76px;\">Disco 2 = copia esatta di Disco 1 in tempo reale<\/p>\n<\/div>\n<div style=\"display: grid; grid-template-columns: repeat(5,1fr); gap: 8px; margin: 1rem 0;\">\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Dischi min.<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">2<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Capacit\u00e0 utile<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">50%<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Guasti tollerati<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">1 su 2<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Lettura<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">Alta<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Scrittura<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">Media<\/div>\n<\/div>\n<\/div>\n<table style=\"width: 100%; border-collapse: collapse; font-size: 13px;\">\n<tbody>\n<tr>\n<td style=\"width: 50%; background: #eaf3de; padding: .75rem 1rem; border: 1px solid #c8e6c9; vertical-align: top;\"><strong style=\"color: #3b6d11; display: block; margin-bottom: .5rem;\">\u2714 Vantaggi<\/strong><\/p>\n<ul style=\"margin: 0 0 0 1.2rem; padding: 0; color: #27500a;\">\n<li style=\"margin-bottom: .3rem;\">Semplicit\u00e0 di gestione e recupero<\/li>\n<li style=\"margin-bottom: .3rem;\">Lettura veloce (da entrambi i dischi)<\/li>\n<li style=\"margin-bottom: .3rem;\">Ideale per OS e dati critici<\/li>\n<\/ul>\n<\/td>\n<td style=\"width: 50%; background: #fcebeb; padding: .75rem 1rem; border: 1px solid #ffcdd2; vertical-align: top;\"><strong style=\"color: #a32d2d; display: block; margin-bottom: .5rem;\">\u2718 Svantaggi<\/strong><\/p>\n<ul style=\"margin: 0 0 0 1.2rem; padding: 0; color: #791f1f;\">\n<li style=\"margin-bottom: .3rem;\">Solo il 50% della capacit\u00e0 \u00e8 usabile<\/li>\n<li style=\"margin-bottom: .3rem;\">Scrittura non pi\u00f9 veloce del singolo disco<\/li>\n<li style=\"margin-bottom: .3rem;\">Costo per GB elevato<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"font-size: 13px; color: #777; margin: .9rem 0 0 0; padding-top: .75rem; border-top: 1px solid #eee;\"><strong style=\"color: #1a1a1a;\">Uso ideale:<\/strong> <em>Dischi di sistema, server con dati ad alta priorit\u00e0, NAS domestici con 2 dischi.<\/em><\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 RAID 5 \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<div style=\"border: 2px solid #185fa5; border-radius: 12px; padding: 1.5rem; margin: 1.5rem 0; background: #fff;\"><span style=\"background: #e6f1fb; color: #0c447c; font-size: 11px; font-weight: bold; padding: 3px 10px; border-radius: 20px; margin-right: 8px;\">\u2b50 Pi\u00f9 diffuso in azienda<\/span><br \/>\n<span style=\"background: #eaf3de; color: #27500a; font-size: 12px; font-weight: bold; padding: 4px 12px; border-radius: 20px;\">1 disco guasto<\/span><\/p>\n<h3 style=\"font-size: 1.2rem; font-weight: bold; color: #1a1a1a; margin: .75rem 0 .25rem 0;\">RAID 5 \u2014 Striping con parit\u00e0 distribuita<\/h3>\n<p style=\"font-size: .875rem; color: #777; margin: 0 0 1rem 0;\">Il miglior bilanciamento tra prestazioni e protezione<\/p>\n<p style=\"margin: 0 0 1rem 0; font-size: 15px;\">I dati e le informazioni di parit\u00e0 vengono distribuiti su tutti i dischi. La parit\u00e0 consente di ricostruire i dati del disco guasto a partire dagli altri. Con almeno 3 dischi si ottiene un ottimo equilibrio tra spazio utile, prestazioni e ridondanza.<\/p>\n<div style=\"margin: 1rem 0; font-size: 13px;\">\n<div style=\"display: flex; align-items: center; gap: 6px; margin-bottom: 6px; flex-wrap: wrap;\"><span style=\"min-width: 70px; font-size: 12px; color: #777;\">Disco 1<\/span><\/p>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">A1<\/div>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">B1<\/div>\n<div style=\"width: 42px; height: 48px; background: #c0dd97; border: 1px solid #3b6d11; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #27500a;\">P<\/div>\n<\/div>\n<div style=\"display: flex; align-items: center; gap: 6px; margin-bottom: 6px; flex-wrap: wrap;\"><span style=\"min-width: 70px; font-size: 12px; color: #777;\">Disco 2<\/span><\/p>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">A2<\/div>\n<div style=\"width: 42px; height: 48px; background: #c0dd97; border: 1px solid #3b6d11; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #27500a;\">P<\/div>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">C1<\/div>\n<\/div>\n<div style=\"display: flex; align-items: center; gap: 6px; flex-wrap: wrap;\"><span style=\"min-width: 70px; font-size: 12px; color: #777;\">Disco 3<\/span><\/p>\n<div style=\"width: 42px; height: 48px; background: #c0dd97; border: 1px solid #3b6d11; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #27500a;\">P<\/div>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">B2<\/div>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">C2<\/div>\n<\/div>\n<p style=\"font-size: 11px; color: #185fa5; font-style: italic; margin: .4rem 0 0 76px;\">La parit\u00e0 (P) viene distribuita su tutti i dischi<\/p>\n<\/div>\n<div style=\"display: grid; grid-template-columns: repeat(5,1fr); gap: 8px; margin: 1rem 0;\">\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Dischi min.<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">3<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Capacit\u00e0 utile<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">(N\u22121)\/N<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Guasti tollerati<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">1<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Lettura<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">Alta<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Scrittura<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">Media<\/div>\n<\/div>\n<\/div>\n<p><!-- WARN BOX --><\/p>\n<div style=\"background: #faeeda; border-left: 4px solid #ba7517; border-radius: 0 8px 8px 0; padding: .9rem 1.1rem; margin: 1rem 0; font-size: 14px; color: #633806;\"><strong>\u26a0 Rischio durante la ricostruzione:<\/strong> se un secondo disco si guasta mentre il controller sta ricostruendo il primo, tutti i dati vengono persi. Questo rischio aumenta con dischi da 4+ TB, dove la ricostruzione pu\u00f2 durare ore o giorni.<\/div>\n<table style=\"width: 100%; border-collapse: collapse; font-size: 13px;\">\n<tbody>\n<tr>\n<td style=\"width: 50%; background: #eaf3de; padding: .75rem 1rem; border: 1px solid #c8e6c9; vertical-align: top;\"><strong style=\"color: #3b6d11; display: block; margin-bottom: .5rem;\">\u2714 Vantaggi<\/strong><\/p>\n<ul style=\"margin: 0 0 0 1.2rem; padding: 0; color: #27500a;\">\n<li style=\"margin-bottom: .3rem;\">Buona capacit\u00e0 utile (es. 4 TB su 3\u00d72 TB)<\/li>\n<li style=\"margin-bottom: .3rem;\">Lettura veloce su pi\u00f9 dischi<\/li>\n<li style=\"margin-bottom: .3rem;\">Standard consolidato e ampiamente supportato<\/li>\n<\/ul>\n<\/td>\n<td style=\"width: 50%; background: #fcebeb; padding: .75rem 1rem; border: 1px solid #ffcdd2; vertical-align: top;\"><strong style=\"color: #a32d2d; display: block; margin-bottom: .5rem;\">\u2718 Svantaggi<\/strong><\/p>\n<ul style=\"margin: 0 0 0 1.2rem; padding: 0; color: #791f1f;\">\n<li style=\"margin-bottom: .3rem;\">Scrittura rallentata dal calcolo della parit\u00e0<\/li>\n<li style=\"margin-bottom: .3rem;\">Vulnerabile durante la ricostruzione<\/li>\n<li style=\"margin-bottom: .3rem;\">Ricostruzione lenta su dischi da 4+ TB<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"font-size: 13px; color: #777; margin: .9rem 0 0 0; padding-top: .75rem; border-top: 1px solid #eee;\"><strong style=\"color: #1a1a1a;\">Uso ideale:<\/strong> <em>File server aziendali, NAS con 4\u20136 dischi, storage condiviso per uffici e PMI.<\/em><\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 RAID 6 \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<div style=\"border: 1px solid #e0e0e0; border-radius: 12px; padding: 1.5rem; margin: 1.5rem 0; background: #fff;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 12px; font-weight: bold; padding: 4px 12px; border-radius: 20px;\">2 dischi guasti<\/span><\/p>\n<h3 style=\"font-size: 1.2rem; font-weight: bold; color: #1a1a1a; margin: .75rem 0 .25rem 0;\">RAID 6 \u2014 Doppia parit\u00e0 distribuita<\/h3>\n<p style=\"font-size: .875rem; color: #777; margin: 0 0 1rem 0;\">Come RAID 5, ma con protezione doppia<\/p>\n<p style=\"margin: 0 0 1rem 0; font-size: 15px;\">Evoluzione del RAID 5 con due blocchi di parit\u00e0 per ogni stripe. Pu\u00f2 sopravvivere al guasto contemporaneo di due dischi, rendendolo molto pi\u00f9 robusto durante le operazioni di ricostruzione. Richiede almeno 4 dischi.<\/p>\n<div style=\"margin: 1rem 0; font-size: 13px;\">\n<div style=\"display: flex; align-items: center; gap: 6px; margin-bottom: 6px; flex-wrap: wrap;\"><span style=\"min-width: 70px; font-size: 12px; color: #777;\">Disco 1<\/span><\/p>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">A1<\/div>\n<div style=\"width: 42px; height: 48px; background: #c0dd97; border: 1px solid #3b6d11; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #27500a;\">P1<\/div>\n<div style=\"width: 42px; height: 48px; background: #c0dd97; border: 1px solid #3b6d11; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #27500a;\">P2<\/div>\n<\/div>\n<div style=\"display: flex; align-items: center; gap: 6px; margin-bottom: 6px; flex-wrap: wrap;\"><span style=\"min-width: 70px; font-size: 12px; color: #777;\">Disco 2<\/span><\/p>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">A2<\/div>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">B1<\/div>\n<div style=\"width: 42px; height: 48px; background: #c0dd97; border: 1px solid #3b6d11; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #27500a;\">P1<\/div>\n<\/div>\n<div style=\"display: flex; align-items: center; gap: 6px; margin-bottom: 6px; flex-wrap: wrap;\"><span style=\"min-width: 70px; font-size: 12px; color: #777;\">Disco 3<\/span><\/p>\n<div style=\"width: 42px; height: 48px; background: #c0dd97; border: 1px solid #3b6d11; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #27500a;\">P2<\/div>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">B2<\/div>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">C1<\/div>\n<\/div>\n<div style=\"display: flex; align-items: center; gap: 6px; flex-wrap: wrap;\"><span style=\"min-width: 70px; font-size: 12px; color: #777;\">Disco 4<\/span><\/p>\n<div style=\"width: 42px; height: 48px; background: #c0dd97; border: 1px solid #3b6d11; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #27500a;\">P1<\/div>\n<div style=\"width: 42px; height: 48px; background: #c0dd97; border: 1px solid #3b6d11; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #27500a;\">P2<\/div>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">C2<\/div>\n<\/div>\n<p style=\"font-size: 11px; color: #185fa5; font-style: italic; margin: .4rem 0 0 76px;\">Due blocchi di parit\u00e0 per ogni stripe \u2014 tolleranza a 2 guasti simultanei<\/p>\n<\/div>\n<div style=\"display: grid; grid-template-columns: repeat(5,1fr); gap: 8px; margin: 1rem 0;\">\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Dischi min.<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">4<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Capacit\u00e0 utile<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">(N\u22122)\/N<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Guasti tollerati<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">2<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Lettura<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">Alta<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Scrittura<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">Medio-bassa<\/div>\n<\/div>\n<\/div>\n<table style=\"width: 100%; border-collapse: collapse; font-size: 13px;\">\n<tbody>\n<tr>\n<td style=\"width: 50%; background: #eaf3de; padding: .75rem 1rem; border: 1px solid #c8e6c9; vertical-align: top;\"><strong style=\"color: #3b6d11; display: block; margin-bottom: .5rem;\">\u2714 Vantaggi<\/strong><\/p>\n<ul style=\"margin: 0 0 0 1.2rem; padding: 0; color: #27500a;\">\n<li style=\"margin-bottom: .3rem;\">Tolleranza a 2 guasti simultanei<\/li>\n<li style=\"margin-bottom: .3rem;\">Molto sicuro per array con molti dischi<\/li>\n<li style=\"margin-bottom: .3rem;\">Ideale per dischi di grandi dimensioni<\/li>\n<\/ul>\n<\/td>\n<td style=\"width: 50%; background: #fcebeb; padding: .75rem 1rem; border: 1px solid #ffcdd2; vertical-align: top;\"><strong style=\"color: #a32d2d; display: block; margin-bottom: .5rem;\">\u2718 Svantaggi<\/strong><\/p>\n<ul style=\"margin: 0 0 0 1.2rem; padding: 0; color: #791f1f;\">\n<li style=\"margin-bottom: .3rem;\">Scrittura pi\u00f9 lenta del RAID 5<\/li>\n<li style=\"margin-bottom: .3rem;\">Richiede almeno 4 dischi<\/li>\n<li style=\"margin-bottom: .3rem;\">Overhead di calcolo elevato<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"font-size: 13px; color: #777; margin: .9rem 0 0 0; padding-top: .75rem; border-top: 1px solid #eee;\"><strong style=\"color: #1a1a1a;\">Uso ideale:<\/strong> <em>Storage aziendale con dischi da 8+ TB, archivi di lungo periodo, sistemi di backup critici.<\/em><\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 RAID 10 \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<div style=\"border: 1px solid #e0e0e0; border-radius: 12px; padding: 1.5rem; margin: 1.5rem 0; background: #fff;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 12px; font-weight: bold; padding: 4px 12px; border-radius: 20px;\">Alta ridondanza<\/span><\/p>\n<h3 style=\"font-size: 1.2rem; font-weight: bold; color: #1a1a1a; margin: .75rem 0 .25rem 0;\">RAID 10 (1+0) \u2014 Mirror + Striping<\/h3>\n<p style=\"font-size: .875rem; color: #777; margin: 0 0 1rem 0;\">Prestazioni e sicurezza insieme<\/p>\n<p style=\"margin: 0 0 1rem 0; font-size: 15px;\">Combina RAID 1 e RAID 0: i dischi vengono prima accoppiati in mirror, poi i mirror vengono messi in stripe tra loro. Offre le prestazioni del RAID 0 con la sicurezza del RAID 1. La ricostruzione \u00e8 molto rapida. Richiede almeno 4 dischi e sacrifica il 50% della capacit\u00e0 totale.<\/p>\n<div style=\"margin: 1rem 0; font-size: 13px;\">\n<div style=\"display: flex; align-items: center; gap: 6px; margin-bottom: 6px; flex-wrap: wrap;\"><span style=\"min-width: 70px; font-size: 12px; color: #777;\">Mirror 1<\/span><\/p>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">A<\/div>\n<div style=\"width: 42px; height: 48px; background: #f5c4b3; border: 1px solid #993c1d; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #712b13;\">A<\/div>\n<p><span style=\"color: #ccc; font-size: 20px; margin: 0 8px;\">|<\/span><br \/>\n<span style=\"min-width: 70px; font-size: 12px; color: #777;\">Mirror 2<\/span><\/p>\n<div style=\"width: 42px; height: 48px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #0c447c;\">B<\/div>\n<div style=\"width: 42px; height: 48px; background: #f5c4b3; border: 1px solid #993c1d; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #712b13;\">B<\/div>\n<\/div>\n<p style=\"font-size: 11px; color: #185fa5; font-style: italic; margin: .4rem 0 0 76px;\">I due mirror vengono uniti in stripe \u2192 velocit\u00e0 RAID 0 + sicurezza RAID 1<\/p>\n<\/div>\n<div style=\"display: grid; grid-template-columns: repeat(5,1fr); gap: 8px; margin: 1rem 0;\">\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Dischi min.<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">4<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Capacit\u00e0 utile<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">50%<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Guasti tollerati<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">1 per coppia<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Lettura<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">Molto alta<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Scrittura<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">Alta<\/div>\n<\/div>\n<\/div>\n<table style=\"width: 100%; border-collapse: collapse; font-size: 13px;\">\n<tbody>\n<tr>\n<td style=\"width: 50%; background: #eaf3de; padding: .75rem 1rem; border: 1px solid #c8e6c9; vertical-align: top;\"><strong style=\"color: #3b6d11; display: block; margin-bottom: .5rem;\">\u2714 Vantaggi<\/strong><\/p>\n<ul style=\"margin: 0 0 0 1.2rem; padding: 0; color: #27500a;\">\n<li style=\"margin-bottom: .3rem;\">Prestazioni elevate in lettura e scrittura<\/li>\n<li style=\"margin-bottom: .3rem;\">Ricostruzione molto rapida<\/li>\n<li style=\"margin-bottom: .3rem;\">Tollerante a pi\u00f9 guasti su coppie diverse<\/li>\n<\/ul>\n<\/td>\n<td style=\"width: 50%; background: #fcebeb; padding: .75rem 1rem; border: 1px solid #ffcdd2; vertical-align: top;\"><strong style=\"color: #a32d2d; display: block; margin-bottom: .5rem;\">\u2718 Svantaggi<\/strong><\/p>\n<ul style=\"margin: 0 0 0 1.2rem; padding: 0; color: #791f1f;\">\n<li style=\"margin-bottom: .3rem;\">Solo il 50% della capacit\u00e0 \u00e8 usabile<\/li>\n<li style=\"margin-bottom: .3rem;\">Costo hardware elevato (min. 4 dischi)<\/li>\n<li style=\"margin-bottom: .3rem;\">Non conveniente per grandi capacit\u00e0<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"font-size: 13px; color: #777; margin: .9rem 0 0 0; padding-top: .75rem; border-top: 1px solid #eee;\"><strong style=\"color: #1a1a1a;\">Uso ideale:<\/strong> <em>Database ad alta transazionalit\u00e0, server di posta, virtualizzazione con I\/O intenso.<\/em><\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 RAID 50\/60 \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<div style=\"border: 1px solid #e0e0e0; border-radius: 12px; padding: 1.5rem; margin: 1.5rem 0; background: #fff;\"><span style=\"background: #e6f1fb; color: #0c447c; font-size: 12px; font-weight: bold; padding: 4px 12px; border-radius: 20px;\">Configurazioni avanzate<\/span><\/p>\n<h3 style=\"font-size: 1.2rem; font-weight: bold; color: #1a1a1a; margin: .75rem 0 .25rem 0;\">RAID 50 e RAID 60<\/h3>\n<p style=\"font-size: .875rem; color: #777; margin: 0 0 1rem 0;\">Nested RAID per grandi array enterprise<\/p>\n<p style=\"margin: 0 0 .7rem 0; font-size: 15px;\"><strong>RAID 50<\/strong> combina pi\u00f9 gruppi RAID 5 messi in stripe (RAID 0). Aumenta le prestazioni e la tolleranza ai guasti rispetto al solo RAID 5. Richiede almeno 6 dischi.<\/p>\n<p style=\"margin: 0 0 1rem 0; font-size: 15px;\"><strong>RAID 60<\/strong> combina pi\u00f9 gruppi RAID 6 in stripe. Pu\u00f2 tollerare fino a 2 guasti per gruppo, ideale per array con 12+ dischi di fascia enterprise.<\/p>\n<div style=\"margin: 1rem 0; font-size: 13px;\">\n<div style=\"display: flex; align-items: center; gap: 6px; margin-bottom: 6px; flex-wrap: wrap;\"><span style=\"min-width: 70px; font-size: 12px; color: #777;\">RAID 5 #1<\/span><\/p>\n<div style=\"width: 38px; height: 44px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 10px; font-weight: bold; color: #0c447c;\">D<\/div>\n<div style=\"width: 38px; height: 44px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 10px; font-weight: bold; color: #0c447c;\">D<\/div>\n<div style=\"width: 38px; height: 44px; background: #c0dd97; border: 1px solid #3b6d11; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 10px; font-weight: bold; color: #27500a;\">P<\/div>\n<p><span style=\"color: #185fa5; font-size: 18px; margin: 0 6px;\">+<\/span><br \/>\n<span style=\"min-width: 70px; font-size: 12px; color: #777;\">RAID 5 #2<\/span><\/p>\n<div style=\"width: 38px; height: 44px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 10px; font-weight: bold; color: #0c447c;\">D<\/div>\n<div style=\"width: 38px; height: 44px; background: #b5d4f4; border: 1px solid #185fa5; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 10px; font-weight: bold; color: #0c447c;\">D<\/div>\n<div style=\"width: 38px; height: 44px; background: #c0dd97; border: 1px solid #3b6d11; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 10px; font-weight: bold; color: #27500a;\">P<\/div>\n<p><span style=\"color: #185fa5; font-size: 13px; font-weight: bold; margin-left: 8px;\">\u2192 stripe<\/span><\/p>\n<\/div>\n<\/div>\n<div style=\"display: grid; grid-template-columns: repeat(4,1fr); gap: 8px; margin: 1rem 0;\">\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">RAID 50 min.<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">6 dischi<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">RAID 60 min.<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">8 dischi<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Guasti (50)<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">1 per gruppo<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Guasti (60)<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">2 per gruppo<\/div>\n<\/div>\n<\/div>\n<p style=\"font-size: 13px; color: #777; margin: .9rem 0 0 0; padding-top: .75rem; border-top: 1px solid #eee;\"><strong style=\"color: #1a1a1a;\">Uso ideale:<\/strong> <em>Storage enterprise, array con 12+ dischi, ambienti che richiedono alta capacit\u00e0 e alta disponibilit\u00e0.<\/em><\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 JBOD \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<div style=\"border: 1px solid #e0e0e0; border-radius: 12px; padding: 1.5rem; margin: 1.5rem 0; background: #fff;\"><span style=\"background: #faeeda; color: #633806; font-size: 12px; font-weight: bold; padding: 4px 12px; border-radius: 20px;\">Nessuna ridondanza<\/span><\/p>\n<h3 style=\"font-size: 1.2rem; font-weight: bold; color: #1a1a1a; margin: .75rem 0 .25rem 0;\">JBOD \u2014 Just a Bunch Of Disks<\/h3>\n<p style=\"font-size: .875rem; color: #777; margin: 0 0 1rem 0;\">Non \u00e8 tecnicamente RAID<\/p>\n<p style=\"margin: 0 0 1rem 0; font-size: 15px;\">JBOD non \u00e8 un livello RAID vero e proprio: i dischi vengono semplicemente concatenati in un unico volume logico, senza stripe n\u00e9 parit\u00e0. I dati vengono scritti in sequenza \u2014 prima disco 1, poi disco 2, ecc. Un guasto comporta la perdita solo dei dati su quel disco specifico, non dell&#8217;intero array.<\/p>\n<div style=\"display: grid; grid-template-columns: repeat(4,1fr); gap: 8px; margin: 1rem 0;\">\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Dischi min.<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">2<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Capacit\u00e0 utile<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">100%<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Ridondanza<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">Nessuna<\/div>\n<\/div>\n<div style=\"background: #f5f5f5; border-radius: 8px; padding: .6rem .75rem;\">\n<div style=\"font-size: 11px; color: #777; margin-bottom: 3px;\">Prestazioni<\/div>\n<div style=\"font-size: 14px; font-weight: bold;\">Come singolo<\/div>\n<\/div>\n<\/div>\n<p style=\"font-size: 13px; color: #777; margin: .9rem 0 0 0; padding-top: .75rem; border-top: 1px solid #eee;\"><strong style=\"color: #1a1a1a;\">Uso ideale:<\/strong> <em>Espansione di capacit\u00e0 a basso costo, archivi non critici, ambienti con backup separato gi\u00e0 strutturato.<\/em><\/p>\n<\/div>\n<hr style=\"border: none; border-top: 1px solid #e0e0e0; margin: 2rem 0;\" \/>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 TABELLA COMPARATIVA \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: 1.35rem; font-weight: bold; color: #0c447c; margin: 0 0 1rem 0; padding-left: .9rem; border-left: 4px solid #185fa5;\">Tabella comparativa riassuntiva<\/h2>\n<div style=\"overflow-x: auto;\">\n<table style=\"width: 100%; border-collapse: collapse; font-size: 13px; min-width: 600px;\">\n<thead>\n<tr>\n<th style=\"background: #185fa5; color: #fff; padding: .65rem .85rem; text-align: left; font-weight: bold;\">Tipo<\/th>\n<th style=\"background: #185fa5; color: #fff; padding: .65rem .85rem; text-align: left; font-weight: bold;\">Min. dischi<\/th>\n<th style=\"background: #185fa5; color: #fff; padding: .65rem .85rem; text-align: left; font-weight: bold;\">Capacit\u00e0 utile<\/th>\n<th style=\"background: #185fa5; color: #fff; padding: .65rem .85rem; text-align: left; font-weight: bold;\">Guasti tollerati<\/th>\n<th style=\"background: #185fa5; color: #fff; padding: .65rem .85rem; text-align: left; font-weight: bold;\">Lettura<\/th>\n<th style=\"background: #185fa5; color: #fff; padding: .65rem .85rem; text-align: left; font-weight: bold;\">Scrittura<\/th>\n<th style=\"background: #185fa5; color: #fff; padding: .65rem .85rem; text-align: left; font-weight: bold;\">Uso tipico<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0; font-weight: bold; color: #0c447c;\">RAID 0<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\">2<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\">100%<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #fcebeb; color: #791f1f; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">0<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Molto alta<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Molto alta<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0; font-size: 12px;\">Cache, video editing<\/td>\n<\/tr>\n<tr style=\"background: #f8f9fa;\">\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0; font-weight: bold; color: #0c447c;\">RAID 1<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\">2<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\">50%<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">1<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Alta<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #faeeda; color: #633806; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Media<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0; font-size: 12px;\">OS, dati critici<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0; font-weight: bold; color: #0c447c;\">RAID 5<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\">3<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\">(N\u22121)\/N<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">1<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Alta<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #faeeda; color: #633806; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Media<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0; font-size: 12px;\">File server, NAS<\/td>\n<\/tr>\n<tr style=\"background: #f8f9fa;\">\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0; font-weight: bold; color: #0c447c;\">RAID 6<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\">4<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\">(N\u22122)\/N<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">2<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Alta<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #faeeda; color: #633806; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Medio-bassa<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0; font-size: 12px;\">Storage enterprise<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0; font-weight: bold; color: #0c447c;\">RAID 10<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\">4<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\">50%<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">1 per coppia<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Molto alta<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Alta<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0; font-size: 12px;\">Database, VM<\/td>\n<\/tr>\n<tr style=\"background: #f8f9fa;\">\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0; font-weight: bold; color: #0c447c;\">RAID 50<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\">6<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\">variabile<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">1 per gruppo<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Alta<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Alta<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0; font-size: 12px;\">Array grandi<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0; font-weight: bold; color: #0c447c;\">RAID 60<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\">8<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\">variabile<\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">2 per gruppo<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #eaf3de; color: #27500a; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Alta<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0;\"><span style=\"background: #faeeda; color: #633806; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Media<\/span><\/td>\n<td style=\"padding: .6rem .85rem; border-bottom: 1px solid #e0e0e0; font-size: 12px;\">Enterprise critico<\/td>\n<\/tr>\n<tr style=\"background: #f8f9fa;\">\n<td style=\"padding: .6rem .85rem; font-weight: bold; color: #0c447c;\">JBOD<\/td>\n<td style=\"padding: .6rem .85rem;\">2<\/td>\n<td style=\"padding: .6rem .85rem;\">100%<\/td>\n<td style=\"padding: .6rem .85rem;\"><span style=\"background: #fcebeb; color: #791f1f; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Parziale<\/span><\/td>\n<td style=\"padding: .6rem .85rem;\"><span style=\"background: #f5f5f5; color: #555; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Normale<\/span><\/td>\n<td style=\"padding: .6rem .85rem;\"><span style=\"background: #f5f5f5; color: #555; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 20px;\">Normale<\/span><\/td>\n<td style=\"padding: .6rem .85rem; font-size: 12px;\">Archivi, espansione<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<hr style=\"border: none; border-top: 1px solid #e0e0e0; margin: 2rem 0;\" \/>\n<p><!-- BACKUP WARNING --><\/p>\n<h2 style=\"font-size: 1.35rem; font-weight: bold; color: #0c447c; margin: 0 0 1rem 0; padding-left: .9rem; border-left: 4px solid #185fa5;\">RAID non \u00e8 un backup<\/h2>\n<div style=\"background: #fff8e1; border: 1px solid #f9a825; border-radius: 12px; padding: 1.25rem 1.5rem; margin: 1rem 0;\">\n<p style=\"margin: 0 0 .5rem 0; font-weight: bold; color: #e65100; font-size: 15px;\">\u26a0 Attenzione: RAID \u2260 Backup<\/p>\n<p style=\"margin: 0; font-size: 14px; color: #4e342e;\">Il RAID protegge dalla perdita di dati causata dal guasto fisico di un disco. <strong>Non protegge<\/strong> da cancellazione accidentale, ransomware, corruzione del file system, guasto del controller RAID, incendi o allagamenti. Una strategia di backup separata \u2014 idealmente con la regola <strong>3-2-1<\/strong> (3 copie, 2 supporti diversi, 1 offsite) \u2014 \u00e8 sempre indispensabile, indipendentemente dal tipo di RAID scelto.<\/p>\n<\/div>\n<p style=\"font-size: 12px; text-align: center; color: #aaa; margin: 2rem 0 0 0; font-style: italic;\">Articolo a cura del team tecnico \u2014 Aprile 2025<\/p>\n<\/div>\n<p><!-- FINE ARTICOLO RAID --><\/p>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"216\" height=\"218\" src=\"https:\/\/www.docsnet.it\/wp-content\/uploads\/2026\/04\/image-9-e1777137316511.png\" alt=\"\" class=\"wp-image-1026\" srcset=\"https:\/\/www.docsnet.it\/wp-content\/uploads\/2026\/04\/image-9-e1777137316511.png 216w, https:\/\/www.docsnet.it\/wp-content\/uploads\/2026\/04\/image-9-e1777137316511-150x150.png 150w, https:\/\/www.docsnet.it\/wp-content\/uploads\/2026\/04\/image-9-e1777137316511-100x100.png 100w\" sizes=\"auto, (max-width: 216px) 100vw, 216px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center\"><strong>Se il danno \u00e8 gi\u00e0 accaduto, scansiona il QR Code per un&#8217;analisi gratuita sul recupero dati<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Storage &amp; Infrastruttura Aprile 2025 \u00a0\u00b7\u00a0 12 min di lettura RAID sta per Redundant Array of Independent Disks: una tecnologia che permette di combinare pi\u00f9 dischi fisici in un unico &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,241,246,1,11],"tags":[242,245,243,46,244],"class_list":["post-1034","post","type-post","status-publish","format-standard","hentry","category-informazioni-varie","category-recupero-dati","category-salvataggio-dati","category-senza-categoria","category-sistemistica","tag-backup","tag-perdita-di-dati","tag-raid","tag-sicurezza-informatica","tag-sicurezza-informazioni"],"_links":{"self":[{"href":"https:\/\/www.docsnet.it\/index.php\/wp-json\/wp\/v2\/posts\/1034","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.docsnet.it\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.docsnet.it\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.docsnet.it\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.docsnet.it\/index.php\/wp-json\/wp\/v2\/comments?post=1034"}],"version-history":[{"count":2,"href":"https:\/\/www.docsnet.it\/index.php\/wp-json\/wp\/v2\/posts\/1034\/revisions"}],"predecessor-version":[{"id":1040,"href":"https:\/\/www.docsnet.it\/index.php\/wp-json\/wp\/v2\/posts\/1034\/revisions\/1040"}],"wp:attachment":[{"href":"https:\/\/www.docsnet.it\/index.php\/wp-json\/wp\/v2\/media?parent=1034"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.docsnet.it\/index.php\/wp-json\/wp\/v2\/categories?post=1034"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.docsnet.it\/index.php\/wp-json\/wp\/v2\/tags?post=1034"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}