{"id":15659,"date":"2024-06-10T13:47:00","date_gmt":"2024-06-10T06:47:00","guid":{"rendered":"https:\/\/blog.tinohost.com\/?p=621"},"modified":"2025-06-26T11:24:31","modified_gmt":"2025-06-26T04:24:31","slug":"ssd-raid-la-gi","status":"publish","type":"post","link":"https:\/\/tino.vn\/blog\/ssd-raid-la-gi\/","title":{"rendered":"SSD RAID l\u00e0 g\u00ec? Gi\u1ea3i ph\u00e1p l\u01b0u tr\u1eef ho\u00e0n h\u1ea3o cho hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 an to\u00e0n"},"content":{"rendered":"\n

B\u1ea1n \u0111\u00e3 bao gi\u1edd c\u1ea3m th\u1ea5y b\u1ef1c b\u1ed9i v\u00ec m\u00e1y t\u00ednh ch\u1ea1y ch\u1eadm ch\u1ea1p, t\u1ea3i game<\/a> l\u00e2u hay g\u1eb7p s\u1ef1 c\u1ed1 m\u1ea5t d\u1eef li\u1ec7u? \u0110\u00e3 \u0111\u1ebfn l\u00fac b\u1ea1n c\u1ea7n SSD<\/a> RAID, gi\u1ea3i ph\u00e1p l\u01b0u tr\u1eef ti\u00ean ti\u1ebfn mang \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 truy c\u1eadp d\u1eef li\u1ec7u si\u00eau nhanh, kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u t\u1ed1i \u01b0u v\u00e0 n\u00e2ng t\u1ea7m tr\u1ea3i nghi\u1ec7m m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n. V\u1eady ch\u00ednh x\u00e1c SSD RAID l\u00e0 g\u00ec? \u0110\u00e2u l\u00e0 \u01b0u \u0111i\u1ec3m c\u1ee7a RAID so v\u1edbi m\u1ed9t SSD \u0111\u01a1n \u0111\u1ed9c? L\u1ee3i \u00edch khi s\u1eed d\u1ee5ng SSD RAID l\u00e0 g\u00ec? M\u1eddi b\u1ea1n c\u00f9ng TinoHost t\u00ecm hi\u1ec3u chi ti\u1ebft v\u1ec1 SSD RAID qua b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y nh\u00e9!<\/strong><\/p>\n\n\n\n

SSD RAID l\u00e0 g\u00ec?<\/strong><\/h2>\n\n\n\n

RAID <\/a>l\u00e0 t\u00ean vi\u1ebft t\u1eaft c\u1ee7a Redundant Array of Inexpensive Disks<\/strong> ho\u1eb7c mang t\u00ednh c\u00f4ng ngh\u1ec7 h\u01a1n l\u00e0 Redundant Array of Independent Disks<\/strong> (t\u1ea1m d\u1ecbch: H\u1ec7 th\u1ed1ng \u0111\u0129a d\u1ef1 ph\u00f2ng<\/em>). \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng h\u00ecnh th\u1ee9c gh\u00e9p c\u00e1c \u1ed5 \u0111\u0129a v\u1eadt l\u00fd l\u1ea1i v\u1edbi nhau th\u00e0nh c\u1ea3 m\u1ed9t h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef c\u00f3 ch\u1ee9c n\u0103ng gi\u00fap c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 \u0111\u1ecdc ghi th\u00f4ng tin, d\u1eef li\u1ec7u v\u00e0 t\u0103ng th\u00eam \u0111\u1ed9 an to\u00e0n cho c\u00e1c kh\u1ed1i t\u1eadp tin, d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a.<\/p>\n\n\n

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\"ssd-raid-la-gi\"
SSD RAID l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<\/div>\n\n\n

B\u1ea3n ch\u1ea5t RAID l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 b\u1ed9 nh\u1edb l\u01b0u tr\u1eef \u1ea3o. B\u1ed9 nh\u1edb n\u00e0y \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p gi\u1eefa nhi\u1ec1u \u1ed5 c\u1ee9ng v\u1eadt l\u00fd v\u1edbi nhau th\u00e0nh m\u1ed9t \u0111\u01a1n v\u1ecb l\u01b0u tr\u1eef \u0111\u01a1n l\u1ebb nh\u1eb1m \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 l\u01b0u tr\u1eef cao h\u01a1n.<\/p>\n\n\n\n

Hi\u1ec3u \u0111\u01a1n gi\u1ea3n, RAID nh\u01b0 m\u1ed9t c\u00e1i h\u1ed3 l\u1edbn (c\u1ea3 c\u1ee5m raid, nhi\u1ec1u \u1ed5 c\u1ee9ng), n\u00f3 g\u1ed9p chung t\u1ea5t c\u1ea3 nh\u1eefng c\u00e1i h\u1ed3 nh\u1ecf (\u1ed5 \u0111\u01a1n) th\u00e0nh 1 h\u1ec7 th\u1ed1ng, tr\u00ean RAID c\u00f3 c\u01a1 ch\u1ebf “an to\u00e0n h\u01a1n 1 ch\u00fat” v\u00ec n\u00f3 cho ph\u00e9p 1 s\u1ed1 l\u01b0\u1ee3ng \u1ed5 v\u1eadt l\u00fd nh\u1ea5t \u0111\u1ecbnh h\u1ecfng h\u00f3c m\u00e0 h\u1ec7 th\u1ed1ng kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n, kh\u00f4ng b\u1ecb m\u1ea5t d\u1eef li\u1ec7u.<\/p>\n\n\n\n

RAID ra \u0111\u1eddi nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/h2>\n\n\n\n

Theo Wikipedia<\/a>, RAID l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi c\u00e1c nh\u00e0 khoa h\u1ecdc m\u00e1y t\u00ednh thu\u1ed9c tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc California t\u1ea1i Berkeley v\u00e0o n\u0103m 1987. M\u1ee5c \u0111\u00edch ban \u0111\u1ea7u l\u00e0 h\u1ecd mu\u1ed1n k\u1ebft h\u1ee3p hai ho\u1eb7c nhi\u1ec1u \u1ed5 \u0111\u0129a c\u1ee9ng v\u1eadt l\u00fd \u0111\u1ec3 r\u1ed3i sau \u0111\u00f3 t\u1ea1o ra m\u1ed9t thi\u1ebft b\u1ecb l\u01b0u tr\u1eef \u1ea3o duy nh\u1ea5t tr\u00ean h\u1ec7 th\u1ed1ng m\u00e1y ch\u1ee7<\/a>. N\u00f3i kh\u00e1c \u0111i, OS c\u1ee7a m\u00e1y ch\u1ee7 l\u00fac n\u00e0y ch\u1ec9 c\u00f3 th\u1ec3 th\u1ea5y m\u1ed9t \u1ed5 duy nh\u1ea5t \u0111\u01b0\u1ee3c d\u1ef1ng t\u1eeb 2 hay nhi\u1ec1u SSD c\u00f3 trong m\u00e1y.<\/p>\n\n\n\n

So v\u1edbi m\u1ed9t \u1ed5 SSD \u0111\u01a1n \u0111\u1ed9c th\u00f4ng th\u01b0\u1eddng, RAID c\u00f3 g\u00ec v\u01b0\u1ee3t tr\u1ed9i h\u01a1n?<\/strong><\/h3>\n\n\n\n

T\u0103ng kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i v\u00e0 n\u00e2ng m\u1ee9c th\u00f4ng l\u01b0\u1ee3ng I\/O throughput cao h\u01a1n so v\u1edbi m\u1ed9t \u1ed5 c\u1ee9ng duy nh\u1ea5t ho\u1eb7c m\u1ed9t nh\u00f3m c\u00e1c \u1ed5 \u0111\u0129a c\u1ee9ng \u0111\u1ed9c l\u1eadp l\u00e0 \u0111i\u1ec3m khi\u1ebfn RAID “ghi \u0111i\u1ec3m” cao h\u01a1n trong m\u1eaft ng\u01b0\u1eddi d\u00f9ng. C\u1ee5 th\u1ec3 l\u00e0:<\/p>\n\n\n\n