{"id":9866,"date":"2020-07-07T14:55:52","date_gmt":"2020-07-07T07:55:52","guid":{"rendered":""},"modified":"2024-06-07T16:11:22","modified_gmt":"2024-06-07T09:11:22","slug":"o-cung-ssd-nvme-la-gi-uu-diem-dac-diem-o-cung-nay","status":"publish","type":"post","link":"https:\/\/vnso.vn\/en\/o-cung-ssd-nvme-la-gi-uu-diem-dac-diem-o-cung-nay\/","title":{"rendered":"\u1ed4 c\u1ee9ng SSD NVMe l\u00e0 g\u00ec? \u01afu \u0111i\u1ec3m, \u0111\u1eb7c \u0111i\u1ec3m \u1ed5 c\u1ee9ng n\u00e0y"},"content":{"rendered":"

SSD ch\u00ednh l\u00e0 m\u1ed9t \u1ed5 c\u1ee9ng th\u1ec3 r\u1eafn, c\u00f3 t\u1ed1c \u0111\u1ed9 nhanh h\u01a1n nhi\u1ec1u so v\u1edbi \u1ed5 c\u1ee9ng HDD truy\u1ec1n th\u1ed1ng. Hi\u1ec7n nay c\u00f3 r\u1ea5t nhi\u1ec1u \u1ed5 c\u1ee9ng SSD kh\u00e1c nhau nh\u01b0ng b\u1ea1n \u0111\u00e3 t\u1eebng nghe \u0111\u1ebfn m\u1ed9t lo\u1ea1i SSD g\u1ecdi l\u00e0 NVMe ch\u01b0a?<\/span><\/p>\n

1. \u1ed4 c\u1ee9ng SSD NVMe l\u00e0 g\u00ec?<\/span><\/h2>\n

NVMe l\u00e0 t\u1eeb vi\u1ebft t\u1eaft c\u1ee7a \u201cNon-Volatile Memory Express\u201d ra \u0111\u1eddi v\u00e0o n\u0103m 2013. B\u1edfi c\u00e1c \u201c\u00f4ng l\u1edbn\u201d trong l\u00e0ng c\u00f4ng ngh\u1ec7 nh\u01b0 Intel, Samsung, Sandisk v\u00e0 Dell & Seagate.<\/span><\/p>\n

V\u1edbi t\u1eeb \u201cNon-Volatile\u201d c\u00f3 ngh\u0129a b\u1ed9 nh\u1edb n\u00e0y s\u1ebd kh\u00f4ng th\u1ec3 b\u1ecb xo\u00e1 \u0111i khi m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n kh\u1edfi \u0111\u1ed9ng l\u1ea1i. \u201cExpress\u201d l\u00e0 d\u1eef li\u1ec7u s\u1ebd \u0111\u01b0\u1ee3c truy\u1ec1n qua PCI Express. L\u00e0 giao di\u1ec7n PCI \u1edf tr\u00ean bo m\u1ea1ch ch\u1ee7 m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n. Nh\u1edd th\u1ebf, \u1ed5 c\u1ee9ng k\u1ebft n\u1ed1i v\u1edbi bo m\u1ea1ch ch\u1ee7 n\u00ean d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n tr\u1ef1c ti\u1ebfp. \u0110\u1eb7c bi\u1ec7t kh\u00f4ng c\u1ea7n th\u00f4ng qua b\u1ed9 \u0111i\u1ec1u khi\u1ec3n SATA n\u00ean t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i nhanh h\u01a1n.<\/span><\/p>\n

\u1ed4 c\u1ee9ng SSD NVMe v\u1ec1 c\u01a1 b\u1ea3n s\u1ebd cho t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u nhanh h\u01a1n so v\u1edbi c\u00e1c d\u00f2ng \u1ed5 c\u1ee9ng SATA th\u00f4ng th\u01b0\u1eddng. \u0110\u01a1n c\u1eed nh\u1ea5t nh\u01b0 PCIe 3.0 l\u00e0 th\u1ebf h\u1ec7 hi\u1ec7n t\u1ea1i c\u1ee7a chu\u1ea9n PCI Express. S\u1ebd c\u00f3 t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i t\u1ed1i \u0111a l\u00ean \u0111\u1ebfn 985MPps tr\u00ean m\u1ed7i l\u00e0n.<\/span><\/p>\n

C\u00e1c \u1ed5 c\u1ee9ng NVMe s\u1ebd c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c t\u1ed1i \u0111a 4 l\u00e0n. V\u1ec1 l\u00fd thuy\u1ebft th\u00ec ch\u00fang s\u1ebd \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 t\u1ed1i \u0111a l\u00ean \u0111\u1ebfn 3,9GPps (=3,940MBps). Trong khi \u0111\u00f3 th\u00ec \u1ed5 c\u1ee9ng th\u00f4ng th\u01b0\u1eddng SSD SATA nhanh nh\u1ea5t ch\u00ednh l\u00e0 Samsung 860 Pro c\u0169ng ch\u1ec9 c\u00f3 t\u1ed1c \u0111\u1ed9 r\u01a1i v\u00e0o kho\u1ea3ng 560MBPs.<\/span><\/p>\n

2. \u01afu \u0111i\u1ec3m c\u1ee7a \u1ed5 c\u1ee9ng SSD NVMe<\/strong><\/span><\/h2>\n

2.1. \u0110\u1ed9 tr\u1ec5 th\u1ea5p<\/strong><\/span><\/h3>\n

Khi m\u1ed9t b\u1ed9 \u0111i\u1ec1u khi\u1ec3n AHCI (\u1edf tr\u00ean c\u00e1c chu\u1ea9n giao ti\u1ebfp c\u1ee7a SATA) th\u1ef1c thi m\u1ed9t l\u1ec7nh n\u00e0o \u0111\u00f3. M\u1ed9t l\u1ec7nh \u0111\u1ecdc kh\u00f4ng l\u01b0u t\u1ea1m th\u1eddi \u1edf tr\u00ean thanh ghi b\u1ed9 nh\u1edb th\u00ec s\u1ebd d\u00f9ng m\u1ea5t 2000 v\u00f2ng x\u1eed l\u00fd CPU. S\u1ebd c\u00f3 4 l\u1ec7nh \u0111\u1ed9c kh\u00f4ng th\u1ec3 l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m \u1edf tr\u00ean m\u1ed7i l\u1ec7nh.<\/span><\/p>\n

N\u00f3i d\u1ec5 hi\u1ec3u h\u01a1n th\u00ec v\u1edbi 8000 v\u00f2ng x\u1eed l\u00fd CPU ho\u1eb7c kho\u1ea3ng 2,5 milisecond \u0111\u1ed9 tr\u1ec5 m\u1ed7i l\u1ec7nh. NVMe s\u1ebd kh\u00f4ng b\u1ecb ch\u1eadm nh\u01b0 v\u1eady b\u1edfi v\u00ec n\u00f3 s\u1ebd tr\u1ef1c ti\u1ebfp li\u00ean l\u1ea1c v\u1edbi CPU th\u00f4ng qua c\u1ed5ng PCI-Express. Do \u0111\u00f3 m\u00e0 b\u1ecf qua t\u1ea5t c\u1ea3 c\u00e1c qu\u00e1 tr\u00ecnh giao ti\u1ebfp g\u00e2y ch\u1eadm tr\u1ec5.<\/span><\/p>\n

2.2. Mang l\u1ea1i hi\u1ec7u n\u0103ng cao<\/span><\/strong><\/span><\/h3>\n

\u0110\u1ed9 tr\u1ec5 th\u1ea5p kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ee3i th\u1ebf duy nh\u1ea5t m\u00e0 \u1ed5 c\u1ee9ng SSD NVMe mang l\u1ea1i cho ng\u01b0\u1eddi d\u00f9ng. B\u1edfi v\u00ec giao ti\u1ebfp n\u00e0y c\u00f2n cung c\u1ea5p ch\u1ec9 s\u1ed1 xu\u1ea5t nh\u1eadp tr\u00ean gi\u00e2y IOPS (Input, Output Operations Per Second) cao.<\/span><\/p>\n

\u1ed4 c\u1ee9ng NVMe c\u00f3 kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 l\u00ean \u0111\u1ebfn 64K h\u00e0ng \u0111\u1ee3i (I\/O queue) x\u1eed l\u00fd c\u00e1c l\u1ec7nh xu\u1ea5t nh\u1eadp. V\u1edbi m\u1ed7i h\u00e0ng \u0111\u1ee3i I\/O s\u1ebd h\u1ed7 tr\u1ee3 l\u00ean \u0111\u1ebfn 64K l\u1ec7nh. T\u1eadn d\u1ee5ng \u0111\u1ea7y \u0111\u1ee7 c\u00e1c kh\u1ea3 n\u0103ng \u0111\u1ecdc v\u00e0 ghi d\u1eef li\u1ec7u song song c\u1ee7a c\u00f4ng ngh\u1ec7 ch\u00edp<\/a> nh\u1edb Flash NAND.<\/span><\/p>\n

Ngo\u00e0i ra \u1edf tr\u00ean AHCI s\u1ebd h\u1ed7 tr\u1ee3 duy nh\u1ea5t m\u1ed9t h\u00e0ng \u0111\u1ee3i I\/O v\u1edbi t\u1ed1i \u0111a l\u00e0 32 l\u1ec7nh tr\u00ean m\u1ed7i h\u00e0ng \u0111\u1ee3i. D\u1eabn \u0111\u1ebfn m\u1ee9c hi\u1ec7u su\u1ea5t s\u1ebd th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi \u1ed5 c\u1ee9ng NVMe.<\/span><\/p>\n

2.3. SSD NVMe c\u0169ng c\u00f3 nhi\u1ec1u h\u00ecnh d\u1ea1ng<\/span><\/h3>\n
    \n
  • Ph\u1ed5 bi\u1ebfn nh\u1ea5t trong s\u1ed1 n\u00e0y l\u00e0 chu\u1ea9n M.2. Lo\u1ea1i n\u00e0y c\u00f3 d\u1ea1ng thanh r\u1ed9ng 22mm v\u00e0 c\u00f3 nhi\u1ec1u lo\u1ea1i d\u00e0i nh\u01b0 30mm, 42mm, 60mm, 80mm hay 100mm. Nh\u1eefng \u1ed5 n\u00e0y \u0111\u1ee7 m\u1ecfng \u0111\u1ec3 n\u1eb1m ph\u1eb3ng tr\u00ean bo m\u1ea1ch ch\u1ee7. Th\u1ebf n\u00ean, n\u00f3 r\u1ea5t ph\u00f9 h\u1ee3p cho nh\u1eefng chi\u1ebfc m\u00e1y t\u00ednh c\u1ee1 nh\u1ecf Mini PC ho\u1eb7c laptop. M\u1ed9t v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh cho \u1ed5 NVMe M.2 \u0111\u00f3 ch\u00ednh l\u00e0 Samsung 970 EVO<\/span>.<\/li>\n<\/ul>\n

    \"\"<\/p>\n

      \n
    • K\u1ebf \u0111\u1ebfn l\u00e0 d\u1ea1ng PCIe 3.0. D\u1ea1ng n\u00e0y t\u01b0\u01a1ng t\u1ef1 GPU ho\u1eb7c card \u00e2m thanh hay nh\u1eefng ph\u1ee5 ki\u1ec7n m\u00e1y t\u00ednh kh\u00e1c. Ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o khe PCIe 3.0 tr\u00ean bo m\u1ea1ch ch\u1ee7. Ch\u00ednh v\u00ec k\u00edch th\u01b0\u1edbc l\u1edbn \u0111\u1eb7c tr\u01b0ng n\u00e0y n\u00ean c\u00e1c \u1ed5 c\u1ee9ng c\u00f3 ki\u1ec3u d\u00e1ng n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho nh\u1eefng m\u00e1y c\u00f3 k\u00edch th\u01b0\u1edbc to nh\u01b0 v\u1ecf case c\u1ee7a m\u00e1y t\u00ednh ho\u1eb7c bo m\u1ea1ch ch\u1ee7 ATX full-size. Kh\u00f4ng gi\u1ed1ng nh\u01b0 chu\u1ea9n M.2, \u1ed5 c\u1ee9ng d\u1ea1ng PCIe 3.0 kh\u00f4ng th\u1ec3 c\u00e0i \u0111\u1eb7t trong laptop.<\/span><\/li>\n<\/ul>\n

      \"\"<\/p>\n

      3. K\u1ebft lu\u1eadn<\/span><\/strong><\/span><\/h2>\n

      C\u00f3 th\u1ec3 n\u00f3i r\u1eb1ng NVMe s\u1eafp tr\u1edf th\u00e0nh chu\u1ea9n m\u1ef1c trong t\u01b0\u01a1ng lai c\u1ee7a giao di\u1ec7n ch\u1ee7 \u0111\u1ea1o d\u00e0nh cho l\u01b0u tr\u1eef. C\u00f9ng nh\u1eefng ti\u1ebfn b\u1ed9 c\u1ee7a c\u00f4ng ngh\u1ec7 Flash NAND v\u00e0 NVMe c\u0169ng \u0111ang d\u1ea7n th\u1ec3 hi\u1ec7n s\u1ee9c m\u1ea1nh trong nhi\u1ec1u giao di\u1ec7n kh\u00e1c nhau \u0111a d\u1ea1ng nh\u01b0 M.2, PCIe, U.2,\u2026<\/span><\/p>\n

      V\u1edbi nh\u1eefng l\u1ee3i \u00edch v\u01b0\u1ee3t tr\u1ed9i v\u1ec1 t\u1ed1c \u0111\u1ed9, NVMe ch\u1eafc ch\u1eafn \u0111\u00e1ng \u0111\u1ec3 c\u00e2n nh\u1eafc n\u1ebfu b\u1ea1n c\u1ea3m th\u1ea5y gi\u00e1 th\u00e0nh c\u1ee7a n\u00f3 v\u1eabn \u1edf m\u1ee9c ph\u00f9 h\u1ee3p v\u1edbi ng\u00e2n s\u00e1ch c\u1ee7a m\u00ecnh. \u0110\u1eb7c bi\u1ec7t n\u1ebfu \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n c\u1ea7n s\u1eed d\u1ee5ng nhi\u1ec1u hi\u1ec7u n\u0103ng \u1ed5 c\u1ee9ng ho\u1eb7c y\u00eau c\u1ea7u \u0111\u1ecdc \/ ghi \u1ed5 c\u1ee9ng li\u00ean t\u1ee5c.<\/span><\/p>","protected":false},"excerpt":{"rendered":"

      SSD ch\u00ednh l\u00e0 m\u1ed9t \u1ed5 c\u1ee9ng th\u1ec3 r\u1eafn, c\u00f3 t\u1ed1c \u0111\u1ed9 nhanh h\u01a1n nhi\u1ec1u so v\u1edbi \u1ed5 c\u1ee9ng HDD truy\u1ec1n th\u1ed1ng. Hi\u1ec7n nay c\u00f3 r\u1ea5t nhi\u1ec1u \u1ed5 c\u1ee9ng SSD kh\u00e1c nhau nh\u01b0ng b\u1ea1n \u0111\u00e3 t\u1eebng nghe \u0111\u1ebfn m\u1ed9t lo\u1ea1i SSD g\u1ecdi l\u00e0 NVMe ch\u01b0a? 1. \u1ed4 c\u1ee9ng SSD NVMe l\u00e0 g\u00ec? NVMe l\u00e0 t\u1eeb vi\u1ebft […]<\/p>","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[52],"tags":[],"yoast_head":"\n\u1ed4 c\u1ee9ng SSD NVMe l\u00e0 g\u00ec? \u01afu \u0111i\u1ec3m, \u0111\u1eb7c \u0111i\u1ec3m \u1ed5 c\u1ee9ng n\u00e0y<\/title>\n<meta name=\"description\" content=\"SSD ch\u00ednh l\u00e0 m\u1ed9t \u1ed5 c\u1ee9ng th\u1ec3 r\u1eafn c\u00f3 t\u1ed1c \u0111\u1ed9 nhanh h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi \u1ed5 c\u1ee9ng HDD truy\u1ec1n th\u1ed1ng. 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