{"id":9867,"date":"2020-07-07T14:56:35","date_gmt":"2020-07-07T07:56:35","guid":{"rendered":""},"modified":"2024-07-17T14:55:04","modified_gmt":"2024-07-17T07:55:04","slug":"nas-khac-gi-voi-san-cac-truong-hop-nen-su-dung-nas-hoac-san","status":"publish","type":"post","link":"https:\/\/vnso.vn\/en\/nas-khac-gi-voi-san-cac-truong-hop-nen-su-dung-nas-hoac-san\/","title":{"rendered":"NAS Kh\u00e1c G\u00ec V\u1edbi SAN, C\u00e1c Tr\u01b0\u1eddng H\u1ee3p N\u00ean S\u1eed D\u1ee5ng NAS ho\u1eb7c SAN?"},"content":{"rendered":"

Storage Area Network (SAN) v\u00e0 Network Attached Storage (NAS) \u0111\u1ec1u cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p l\u01b0u tr\u1eef m\u1ea1ng. NAS l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb l\u01b0u tr\u1eef duy nh\u1ea5t ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u00e1c t\u1ec7p d\u1eef li\u1ec7u. SAN l\u00e0 m\u1ea1ng c\u1ee5c b\u1ed9 c\u1ee7a nhi\u1ec1u thi\u1ebft b\u1ecb. C\u00f9ng so s\u00e1nh chi ti\u1ebft h\u01a1n v\u1ec1 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa SAN v\u00e0 NAS<\/strong><\/span>\u00a0qua b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n

1. Storage Area Network (SAN)<\/span><\/h2>\n

SAN l\u00e0 m\u1ed9t m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao chuy\u1ec7n d\u1ee5ng \u0111\u1ec3 k\u1ebft n\u1ed1i v\u00e0 chia s\u1ebb c\u00e1c kho d\u1eef li\u1ec7u chung. Nh\u1ea5t l\u00e0 gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb l\u01b0u tr\u1eef c\u0169ng nh\u01b0 v\u1edbi nhi\u1ec1u server v\u1edbi nhau. SAN l\u01b0u tr\u1eef c\u00e1c t\u00e0i nguy\u00ean kh\u1ecfi m\u1ea1ng ng\u01b0\u1eddi d\u00f9ng. T\u1ed5 ch\u1ee9c l\u1ea1i th\u00e0nh m\u1ed9t m\u1ea1ng l\u01b0\u1edbi \u0111\u1ed9c l\u1eadp v\u1edbi hi\u1ec7u su\u1ea5t r\u1ea5t cao. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p m\u1ed7i m\u00e1y ch\u1ee7<\/a><\/span> truy c\u1eadp v\u00e0o b\u1ed9 nh\u1edb chia s\u1ebb nh\u01b0 th\u1ec3 n\u00f3 l\u00e0 m\u1ed9t \u1ed5 \u0111\u0129a \u0111\u01b0\u1ee3c g\u1eafn tr\u1ef1c ti\u1ebfp tr\u00ean Server v\u1eady. SAN cung c\u1ea5p kh\u1ea3 n\u0103ng truy c\u1eadp \u1edf m\u1ee9c \u0111\u1ed9 l\u00e0 c\u00e1c block. Do \u0111\u00f3, khi m\u1ed9t m\u00e1y ch\u1ee7 mu\u1ed1n truy c\u1eadp v\u00e0o m\u1ed9t thi\u1ebft b\u1ecb l\u01b0u tr\u1eef tr\u00ean SAN. N\u00f3 s\u1ebd g\u1eedi m\u1ed9t y\u00eau c\u1ea7u truy c\u1eadp d\u1ef1a v\u00e0o c\u00e1c block cho thi\u1ebft b\u1ecb l\u01b0u tr\u1eef.
\nSAN \u0111\u01b0\u1ee3c l\u1eafp r\u00e1p b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng 3 th\u00e0nh ph\u1ea7n ch\u00ednh: C\u00e1p, b\u1ed9 \u0111i\u1ec1u h\u1ee3p bus (HBA), v\u00e0 c\u00f4ng t\u1eafc. M\u1ed7i m\u1ed9t h\u1ec7 th\u1ed1ng chuy\u1ec3n m\u1ea1ch v\u00e0 l\u01b0u tr\u1eef tr\u00ean SAN ph\u1ea3i \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi nhau. C\u00e1c k\u1ebft n\u1ed1i v\u1eadt l\u00fd ph\u1ea3i h\u1ed7 tr\u1ee3 m\u1ee9c b\u0103ng th\u00f4ng (bandwidth) \u0111\u1ec3 c\u00f3 th\u1ec3 x\u1eed l\u00fd \u0111\u1ea7y \u0111\u1ee7 c\u00e1c ho\u1ea1t \u0111\u1ed9ng d\u1eef li\u1ec7u.
\nSAN t\u1eeb \u0111\u1ea7u mang ti\u1ebfng l\u00e0 t\u1ed1n k\u00e9m, ph\u1ee9c t\u1ea1p, kh\u00f3 qu\u1ea3n l\u00fd. S\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a iSCSI (Internet Small Computer System Interface) \u0111\u00e3 l\u00e0m gi\u1ea3m thi\u1ec3u nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y b\u1eb1ng c\u00e1ch \u0111\u00f3ng g\u00f3i c\u00e1c l\u1ec7nh SCSI v\u00e0o c\u00e1c g\u00f3i tin IP. Truy\u1ec1n qua k\u1ebft n\u1ed1i Ethernet ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 k\u1ebft n\u1ed1i FC (Fiber Channel).<\/p>\n

2. Network Attached Storage (NAS)<\/span><\/h2>\n

NAS l\u00e0 c\u00e1c thi\u1ebft b\u1ecb l\u01b0u tr\u1eef \u1ed5 c\u1ee9ng m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi m\u1ea1ng gia \u0111\u00ecnh, v\u0103n ph\u00f2ng. Cho ph\u00e9p nhi\u1ec1u m\u00e1y t\u00ednh trong c\u00f9ng m\u1ed9t m\u1ea1ng chia s\u1ebb c\u00f9ng m\u1ed9t kh\u00f4ng gian l\u01b0u tr\u1eef m\u1ed9t l\u00fac.
\nV\u1edbi NAS c\u00f3 th\u1ec3 truy c\u1eadp th\u00f4ng qua m\u00e1y t\u00ednh (Th\u00f4ng th\u01b0\u1eddng qua TCP\/ IP). Thay v\u00ec k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp v\u1edbi m\u00e1y t\u00ednh nh\u01b0 trong m\u1ed9t \u1ed5 c\u1ee9ng ho\u1eb7c \u1ed5 USB. N\u00f3i d\u1ec5 hi\u1ec3u h\u01a1n, NAS gi\u1ed1ng nh\u01b0 c\u00f3 m\u1ed9t \u0111\u00e1m m\u00e2y ri\u00eang trong v\u0103n ph\u00f2ng. N\u00f3 nhanh h\u01a1n, r\u1ebb h\u01a1n v\u00e0 cung c\u1ea5p t\u1ea5t c\u1ea3 c\u00e1c l\u1ee3i \u00edch c\u1ee7a m\u1ed9t \u0111\u00e1m m\u00e2y c\u00f4ng c\u1ed9ng t\u1ea1i ch\u1ed7. Cho ph\u00e9p b\u1ea1n ki\u1ec3m so\u00e1t ho\u00e0n to\u00e0n.<\/p>\n

\"NAS

NAS Kh\u00e1c G\u00ec V\u1edbi SAN, C\u00e1c Tr\u01b0\u1eddng H\u1ee3p N\u00ean S\u1eed D\u1ee5ng NAS ho\u1eb7c SAN?<\/p><\/div>\n\n\n\n\n\n\n\n\n\n\n\n
C\u01a1 s\u1edf so s\u00e1nh<\/td>\nSAN<\/td>\nNAS<\/td>\n<\/tr>\n
Vi\u1ebft t\u1eaft c\u1ee7a<\/td>\nM\u1ea1ng l\u01b0u tr\u1eef<\/td>\nL\u01b0u tr\u1eef \u0111\u00ednh k\u00e8m m\u1ea1ng<\/td>\n<\/tr>\n
Thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi c\u00f4ng ngh\u1ec7<\/td>\nCh\u1ec9 c\u00e1c thi\u1ebft b\u1ecb l\u00e0 l\u1edbp m\u00e1y ch\u1ee7 v\u00e0 c\u00f3 k\u00eanh s\u1ee3i SCSI<\/td>\nM\u1ed7i thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i v\u1edbi m\u1ea1ng LAN v\u00e0 s\u1eed d\u1ee5ng giao th\u1ee9c NFS, CIFS ho\u1eb7c HTTP s\u1ebd c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi NAS.<\/td>\n<\/tr>\n
X\u00e1c \u0111\u1ecbnh d\u1eef li\u1ec7u<\/td>\nX\u00e1c \u0111\u1ecbnh d\u1eef li\u1ec7u theo kh\u1ed1i \u0111\u0129a<\/td>\n\u0110\u1ecba ch\u1ec9 d\u1eef li\u1ec7u theo t\u00ean t\u1ec7p v\u00e0 b\u00f9 byte<\/td>\n<\/tr>\n
M\u1ee9c \u0111\u1ed9 chia s\u1ebb th\u00f4ng tin<\/td>\nVi\u1ec7c chia s\u1ebb t\u1eadp tin d\u1ef1a v\u00e0o h\u1ec7 \u0111i\u1ec1u h\u00e0nh<\/td>\nN\u00f3 cho ph\u00e9p chia s\u1ebb nhi\u1ec1u h\u01a1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 gi\u1eefa c\u00e1c H\u0110H nh\u01b0 Unix v\u00e0 NT<\/td>\n<\/tr>\n
Qu\u1ea3n l\u00fd h\u1ec7 th\u1ed1ng t\u1eadp tin<\/td>\nServer<\/td>\nTr\u01b0\u1edfng \u0111\u01a1n v\u1ecb ch\u1ecbu tr\u00e1ch nhi\u1ec7m.<\/td>\n<\/tr>\n
Giao th\u1ee9c<\/td>\nSCSI, k\u00eanh s\u1ee3i ho\u1eb7c SATA<\/td>\nM\u00e1y ch\u1ee7 t\u1ec7p, NFS ho\u1eb7c CIFS<\/td>\n<\/tr>\n
Sao l\u01b0u v\u00e0 ph\u1ee5c h\u1ed3i<\/td>\nCh\u1eb7n b\u1edfi k\u1ef9 thu\u1eadt sao ch\u00e9p kh\u1ed1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng<\/td>\nT\u1eadp tin \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 sao l\u01b0u v\u00e0 nh\u00e2n b\u1ea3n<\/td>\n<\/tr>\n
Chi ph\u00ed v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p<\/td>\n\u0110\u1eaft ti\u1ec1n v\u00e0 ph\u1ee9c t\u1ea1p h\u01a1n<\/td>\nChi ph\u00ed h\u1ee3p l\u00fd v\u00e0 \u00edt ph\u1ee9c t\u1ea1p<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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3. Tr\u01b0\u1eddng h\u1ee3p<\/span>\u00a0d\u00f9ng<\/span>\u00a0NAS v\u00e0 SAN<\/h2>\n

NAS\u00a0v\u00e0 SAN\u00a0ph\u1ee5c v\u1ee5<\/span>\u00a0c\u00e1c<\/span>\u00a0nhu c\u1ea7u v\u00e0\u00a0tr\u01b0\u1eddng h\u1ee3p<\/span>\u00a0s\u1eed d\u1ee5ng<\/span>\u00a0c\u1ee7a ng\u01b0\u1eddi\u00a0s\u1eed d\u1ee5ng<\/span>\u00a0kh\u00e1c nhau.<\/p>\n

NAS: Khi b\u1ea1n\u00a0c\u1ea7n<\/span>\u00a0h\u1ee3p nh\u1ea5t,\u00a0giao h\u1ed9i<\/span>\u00a0v\u00e0 chia s\u1ebb<\/h3>\n