{"id":477195,"date":"2023-08-09T09:08:44","date_gmt":"2023-08-09T09:08:44","guid":{"rendered":""},"modified":"2023-09-05T11:14:15","modified_gmt":"2023-09-05T11:14:15","slug":"fault-tolerant-computer-system","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/fault-tolerant-computer-system\/","title":{"rendered":"H\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i"},"content":{"rendered":"

H\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 h\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i ho\u1eb7c \u0111\u01a1n gi\u1ea3n l\u00e0 h\u1ec7 th\u1ed1ng FT, l\u00e0 m\u1ed9t lo\u1ea1i ki\u1ebfn tr\u00fac \u0111i\u1ec7n to\u00e1n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 cung c\u1ea5p t\u00ednh s\u1eb5n s\u00e0ng v\u00e0 \u0111\u1ed9 tin c\u1eady cao b\u1eb1ng c\u00e1ch ti\u1ebfp t\u1ee5c ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c ngay c\u1ea3 khi m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n c\u1ee7a n\u00f3 b\u1ecb l\u1ed7i. Kh\u00e1i ni\u1ec7m v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i \u0111\u00e3 c\u00f3 t\u1eeb nh\u1eefng ng\u00e0y \u0111\u1ea7u c\u1ee7a m\u00e1y t\u00ednh khi ng\u01b0\u1eddi ta th\u1ea5y r\u00f5 r\u1eb1ng l\u1ed7i \u1edf c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n c\u1ee9ng ho\u1eb7c ph\u1ea7n m\u1ec1m l\u00e0 kh\u00f4ng th\u1ec3 tr\u00e1nh kh\u1ecfi. \u0110\u1ec3 v\u01b0\u1ee3t qua nh\u1eefng th\u00e1ch th\u1ee9c \u0111\u00f3, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u v\u00e0 k\u1ef9 s\u01b0 \u0111\u00e3 ph\u00e1t tri\u1ec3n c\u00e1c k\u1ef9 thu\u1eadt c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c v\u00e0 gi\u1ea3m th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n

L\u1ecbch s\u1eed ngu\u1ed3n g\u1ed1c c\u1ee7a h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i v\u00e0 l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn n\u00f3<\/h2>\n

Ngu\u1ed3n g\u1ed1c c\u1ee7a kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb nh\u1eefng n\u0103m 1940 khi nh\u1eefng chi\u1ebfc m\u00e1y t\u00ednh \u0111i\u1ec7n t\u1eed \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n. V\u00e0o th\u1eddi \u0111\u00f3, c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh r\u1ea5t l\u1edbn, ch\u1eadm v\u00e0 th\u01b0\u1eddng xuy\u00ean b\u1ecb l\u1ed7i do t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a ch\u00fang. Khi c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n, \u00fd t\u01b0\u1edfng v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i \u0111\u00e3 thu h\u00fat \u0111\u01b0\u1ee3c s\u1ef1 ch\u00fa \u00fd, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng nh\u01b0 qu\u00e2n s\u1ef1, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n c\u00f4ng nghi\u1ec7p. S\u1ef1 \u0111\u1ec1 c\u1eadp \u0111\u1ea7u ti\u00ean v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i trong t\u00e0i li\u1ec7u h\u1ecdc thu\u1eadt c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong c\u00e1c t\u00e1c ph\u1ea9m c\u1ee7a John von Neumann v\u00e0 c\u00e1c \u0111\u1ed3ng nghi\u1ec7p c\u1ee7a \u00f4ng trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n M\u00e1y t\u00ednh t\u1ef1 \u0111\u1ed9ng bi\u1ebfn \u0111\u1ed5i r\u1eddi r\u1ea1c \u0111i\u1ec7n t\u1eed (EDVAC) v\u00e0o cu\u1ed1i nh\u1eefng n\u0103m 1940.<\/p>\n

Th\u00f4ng tin chi ti\u1ebft v\u1ec1 h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i. M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1 H\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i.<\/h2>\n

M\u1ed9t h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean nguy\u00ean t\u1eafc d\u1ef1 ph\u00f2ng. D\u1ef1 ph\u00f2ng li\u00ean quan \u0111\u1ebfn vi\u1ec7c k\u1ebft h\u1ee3p c\u00e1c th\u00e0nh ph\u1ea7n tr\u00f9ng l\u1eb7p ho\u1eb7c ba l\u1ea7n trong h\u1ec7 th\u1ed1ng, \u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u1ebfu m\u1ed9t th\u00e0nh ph\u1ea7n b\u1ecb l\u1ed7i th\u00ec b\u1ea3n sao l\u01b0u c\u00f3 th\u1ec3 \u0111\u1ea3m nhi\u1ec7m c\u00f4ng vi\u1ec7c m\u1ed9t c\u00e1ch li\u1ec1n m\u1ea1ch. Kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i \u0111\u1ea1t \u0111\u01b0\u1ee3c th\u00f4ng qua nhi\u1ec1u k\u1ef9 thu\u1eadt kh\u00e1c nhau, c\u00f3 th\u1ec3 bao g\u1ed3m ph\u1ea7n c\u1ee9ng d\u1ef1 ph\u00f2ng, c\u01a1 ch\u1ebf ph\u00e1t hi\u1ec7n v\u00e0 s\u1eeda l\u1ed7i c\u0169ng nh\u01b0 s\u1ef1 xu\u1ed1ng c\u1ea5p nh\u1eb9 nh\u00e0ng. C\u00e1c h\u1ec7 th\u1ed1ng n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi m\u1ee5c ti\u00eau \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u00ednh s\u1eb5n s\u00e0ng cao, ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c v\u00e0 kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i nhanh ch\u00f3ng sau khi g\u1eb7p s\u1ef1 c\u1ed1.<\/p>\n

C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i. C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i.<\/h2>\n

C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 v\u00e0 m\u1ee9c \u0111\u1ed9 d\u1ef1 ph\u00f2ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u. Tuy nhi\u00ean, th\u01b0\u1eddng c\u00f3 m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n v\u00e0 c\u01a1 ch\u1ebf ph\u1ed5 bi\u1ebfn:<\/p>\n

    \n
  1. \n

    Ph\u1ea7n c\u1ee9ng d\u01b0 th\u1eeba<\/strong>: H\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i s\u1eed d\u1ee5ng c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n c\u1ee9ng tr\u00f9ng l\u1eb7p ho\u1eb7c ba l\u1ea7n, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ed9 x\u1eed l\u00fd, m\u00f4-\u0111un b\u1ed9 nh\u1edb, ngu\u1ed3n \u0111i\u1ec7n v\u00e0 thi\u1ebft b\u1ecb l\u01b0u tr\u1eef. C\u00e1c ph\u1ea7n t\u1eed d\u1ef1 ph\u00f2ng n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi nhau \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng song song, cho ph\u00e9p h\u1ec7 th\u1ed1ng chuy\u1ec3n \u0111\u1ed5i li\u1ec1n m\u1ea1ch sang c\u00e1c b\u1ea3n sao l\u01b0u n\u1ebfu ph\u00e1t hi\u1ec7n l\u1ed7i.<\/p>\n<\/li>\n

  2. \n

    Ph\u00e1t hi\u1ec7n v\u00e0 s\u1eeda l\u1ed7i<\/strong>: C\u00e1c k\u1ef9 thu\u1eadt ph\u00e1t hi\u1ec7n l\u1ed7i kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u1ed5ng ki\u1ec3m tra, bit ch\u1eb5n l\u1ebb v\u00e0 ki\u1ec3m tra d\u1ef1 ph\u00f2ng theo chu k\u1ef3 (CRC), \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u00e0 s\u1eeda l\u1ed7i trong d\u1eef li\u1ec7u v\u00e0 h\u01b0\u1edbng d\u1eabn. B\u1eb1ng c\u00e1ch ph\u00e1t hi\u1ec7n l\u1ed7i s\u1edbm, h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng th\u00edch h\u1ee3p \u0111\u1ec3 tr\u00e1nh lan truy\u1ec1n l\u1ed7i v\u00e0 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a n\u00f3.<\/p>\n<\/li>\n

  3. \n

    C\u01a1 ch\u1ebf b\u1ecf phi\u1ebfu<\/strong>: Trong c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 ba th\u00e0nh ph\u1ea7n, c\u01a1 ch\u1ebf bi\u1ec3u quy\u1ebft c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh k\u1ebft qu\u1ea3 \u0111\u1ea7u ra ch\u00ednh x\u00e1c. Qu\u00e1 tr\u00ecnh n\u00e0y bao g\u1ed3m vi\u1ec7c so s\u00e1nh k\u1ebft qu\u1ea3 t\u1eeb t\u1eebng th\u00e0nh ph\u1ea7n d\u01b0 th\u1eeba v\u00e0 ch\u1ecdn \u0111\u1ea7u ra ph\u00f9 h\u1ee3p v\u1edbi \u0111a s\u1ed1. N\u1ebfu m\u1ed9t th\u00e0nh ph\u1ea7n t\u1ea1o ra k\u1ebft qu\u1ea3 sai, qu\u00e1 tr\u00ecnh b\u1ecf phi\u1ebfu s\u1ebd \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1eef li\u1ec7u ch\u00ednh x\u00e1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n<\/li>\n

  4. \n

    Chuy\u1ec3n \u0111\u1ed5i d\u1ef1 ph\u00f2ng v\u00e0 ph\u1ee5c h\u1ed3i<\/strong>: Khi ph\u00e1t hi\u1ec7n l\u1ed7i, h\u1ec7 th\u1ed1ng s\u1ebd b\u1eaft \u0111\u1ea7u qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i d\u1ef1 ph\u00f2ng \u0111\u1ec3 chuy\u1ec3n sang th\u00e0nh ph\u1ea7n d\u1ef1 ph\u00f2ng. Ngo\u00e0i ra, c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i th\u01b0\u1eddng c\u00f3 c\u01a1 ch\u1ebf kh\u1eafc ph\u1ee5c l\u1ed7i, trong \u0111\u00f3 c\u00e1c th\u00e0nh ph\u1ea7n b\u1ecb l\u1ed7i s\u1ebd \u0111\u01b0\u1ee3c c\u00e1ch ly v\u00e0 s\u1eeda ch\u1eefa ho\u1eb7c thay th\u1ebf trong khi h\u1ec7 th\u1ed1ng ti\u1ebfp t\u1ee5c ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<\/li>\n<\/ol>\n

    Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i<\/h2>\n

    C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i l\u00e0:<\/p>\n

      \n
    1. \n

      T\u00ednh s\u1eb5n s\u00e0ng cao<\/strong>: C\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1ea3m thi\u1ec3u th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 cung c\u1ea5p kh\u1ea3 n\u0103ng v\u1eadn h\u00e0nh li\u00ean t\u1ee5c, \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c d\u1ecbch v\u1ee5 quan tr\u1ecdng v\u1eabn s\u1eb5n c\u00f3 ngay c\u1ea3 khi x\u1ea3y ra l\u1ed7i.<\/p>\n<\/li>\n

    2. \n

      \u0111\u1ed9 tin c\u1eady<\/strong>: C\u00e1c h\u1ec7 th\u1ed1ng n\u00e0y \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n d\u1ef1 ph\u00f2ng v\u00e0 c\u01a1 ch\u1ebf ph\u00e1t hi\u1ec7n l\u1ed7i nh\u1eb1m t\u0103ng \u0111\u1ed9 tin c\u1eady v\u00e0 gi\u1ea3m kh\u1ea3 n\u0103ng x\u1ea3y ra l\u1ed7i h\u1ec7 th\u1ed1ng.<\/p>\n<\/li>\n

    3. \n

      Ph\u00e1t hi\u1ec7n v\u00e0 ph\u1ee5c h\u1ed3i l\u1ed7i<\/strong>: C\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i c\u00f3 th\u1ec3 ch\u1ee7 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n l\u1ed7i v\u00e0 b\u1eaft \u0111\u1ea7u c\u00e1c qu\u00e1 tr\u00ecnh kh\u00f4i ph\u1ee5c, \u0111\u1ea3m b\u1ea3o r\u1eb1ng h\u1ec7 th\u1ed1ng v\u1eabn ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i.<\/p>\n<\/li>\n

    4. \n

      Tho\u00e1i h\u00f3a bi\u1ebfn ch\u1ea5t<\/strong>: Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, khi kh\u1ea3 n\u0103ng d\u1ef1 ph\u00f2ng kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 x\u1eed l\u00fd l\u1ed7i, c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1ea3m hi\u1ec7u su\u1ea5t m\u1ed9t c\u00e1ch nh\u1eb9 nh\u00e0ng, \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c ch\u1ee9c n\u0103ng kh\u00f4ng quan tr\u1ecdng c\u00f3 th\u1ec3 b\u1ecb v\u00f4 hi\u1ec7u h\u00f3a t\u1ea1m th\u1eddi \u0111\u1ec3 duy tr\u00ec c\u00e1c ho\u1ea1t \u0111\u1ed9ng thi\u1ebft y\u1ebfu.<\/p>\n<\/li>\n

    5. \n

      Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/strong>: M\u1ed9t s\u1ed1 h\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 m\u1edf r\u1ed9ng quy m\u00f4 theo chi\u1ec1u ngang b\u1eb1ng c\u00e1ch b\u1ed5 sung th\u00eam nhi\u1ec1u th\u00e0nh ph\u1ea7n d\u1ef1 ph\u00f2ng h\u01a1n \u0111\u1ec3 \u0111\u00e1p \u1ee9ng kh\u1ed1i l\u01b0\u1ee3ng c\u00f4ng vi\u1ec7c t\u0103ng l\u00ean v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<\/li>\n

    6. \n

      S\u1eeda l\u1ed7i<\/strong>: C\u01a1 ch\u1ebf ph\u00e1t hi\u1ec7n v\u00e0 s\u1eeda l\u1ed7i \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u, gi\u1ea3m nguy c\u01a1 h\u1ecfng d\u1eef li\u1ec7u do l\u1ed7i nh\u1ea5t th\u1eddi.<\/p>\n<\/li>\n

    7. \n

      C\u00e1ch ly l\u1ed7i<\/strong>: C\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i th\u01b0\u1eddng \u0111\u01b0\u1ee3c trang b\u1ecb \u0111\u1ec3 c\u00e1ch ly c\u00e1c th\u00e0nh ph\u1ea7n b\u1ecb l\u1ed7i, ng\u0103n ch\u1eb7n s\u1ef1 l\u00e2y lan c\u1ee7a l\u1ed7i sang c\u00e1c b\u1ed9 ph\u1eadn kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<\/li>\n<\/ol>\n

      C\u00e1c lo\u1ea1i h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i<\/h2>\n

      C\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean m\u1ee9c \u0111\u1ed9 d\u1ef1 ph\u00f2ng v\u00e0 c\u00e1c k\u1ef9 thu\u1eadt \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 lo\u1ea1i ph\u1ed5 bi\u1ebfn:<\/p>\n

      1. D\u1ef1 ph\u00f2ng ph\u1ea7n c\u1ee9ng:<\/h3>\n\n\n\n\n\n\n\n
      Ki\u1ec3u<\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
      D\u1ef1 ph\u00f2ng m\u00f4-\u0111un N<\/td>\nNh\u00e2n b\u1ea3n ba ho\u1eb7c nhi\u1ec1u m\u00f4-\u0111un ph\u1ea7n c\u1ee9ng th\u1ef1c hi\u1ec7n c\u00f9ng m\u1ed9t nhi\u1ec7m v\u1ee5, v\u1edbi c\u01a1 ch\u1ebf bi\u1ec3u quy\u1ebft \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh \u0111\u1ea7u ra ch\u00ednh x\u00e1c.<\/td>\n<\/tr>\n
      D\u1ef1 ph\u00f2ng \u0111\u01a1n v\u1ecb d\u1ef1 ph\u00f2ng<\/td>\nC\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n c\u1ee9ng d\u1ef1 ph\u00f2ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t khi th\u00e0nh ph\u1ea7n ch\u00ednh b\u1ecb l\u1ed7i.<\/td>\n<\/tr>\n
      D\u1ef1 ph\u00f2ng m\u00f4-\u0111un k\u00e9p (DMR)<\/td>\nHai m\u00f4-\u0111un d\u1ef1 ph\u00f2ng ho\u1ea1t \u0111\u1ed9ng song song v\u1edbi bi\u1ec3u quy\u1ebft \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 kh\u1eafc ph\u1ee5c l\u1ed7i.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      2. D\u1ef1 ph\u00f2ng ph\u1ea7n m\u1ec1m:<\/h3>\n\n\n\n\n\n\n\n
      Ki\u1ec3u<\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
      Kh\u00f4i ph\u1ee5c ph\u1ea7n m\u1ec1m<\/td>\nTrong tr\u01b0\u1eddng h\u1ee3p x\u1ea3y ra l\u1ed7i, h\u1ec7 th\u1ed1ng s\u1ebd quay tr\u1edf l\u1ea1i tr\u1ea1ng th\u00e1i \u1ed5n \u0111\u1ecbnh \u0111\u00e3 bi\u1ebft tr\u01b0\u1edbc \u0111\u00f3, \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c.<\/td>\n<\/tr>\n
      L\u1eadp tr\u00ecnh phi\u00ean b\u1ea3n N<\/td>\nNhi\u1ec1u phi\u00ean b\u1ea3n c\u1ee7a c\u00f9ng m\u1ed9t ph\u1ea7n m\u1ec1m ch\u1ea1y song song v\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a ch\u00fang \u0111\u01b0\u1ee3c so s\u00e1nh \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh l\u1ed7i.<\/td>\n<\/tr>\n
      Kh\u1ed1i ph\u1ee5c h\u1ed3i<\/td>\nC\u00e1c th\u00e0nh ph\u1ea7n d\u1ef1a tr\u00ean ph\u1ea7n m\u1ec1m c\u00f3 th\u1ec3 kh\u00f4i ph\u1ee5c h\u1ec7 th\u1ed1ng kh\u1ecfi c\u00e1c l\u1ed7i v\u00e0 h\u1ecfng h\u00f3c m\u00e0 kh\u00f4ng l\u00e0m gi\u00e1n \u0111o\u1ea1n ho\u1ea1t \u0111\u1ed9ng.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      3. D\u01b0 th\u1eeba th\u00f4ng tin:<\/h3>\n\n\n\n\n\n\n
      Ki\u1ec3u<\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
      Sao ch\u00e9p d\u1eef li\u1ec7u<\/td>\nL\u01b0u tr\u1eef nhi\u1ec1u b\u1ea3n sao d\u1eef li\u1ec7u \u1edf c\u00e1c v\u1ecb tr\u00ed kh\u00e1c nhau \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o quy\u1ec1n truy c\u1eadp trong tr\u01b0\u1eddng h\u1ee3p m\u1ea5t d\u1eef li\u1ec7u.<\/td>\n<\/tr>\n
      RAID (M\u1ea3ng \u0111\u0129a \u0111\u1ed9c l\u1eadp d\u1ef1 ph\u00f2ng)<\/td>\nD\u1eef li\u1ec7u \u0111\u01b0\u1ee3c ph\u00e2n ph\u1ed1i tr\u00ean nhi\u1ec1u \u0111\u0129a v\u1edbi th\u00f4ng tin ch\u1eb5n l\u1ebb \u0111\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      C\u00e1ch s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 l\u1ed7i, c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng<\/h2>\n

      C\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i r\u1ea5t \u0111a d\u1ea1ng v\u00e0 th\u01b0\u1eddng th\u1ea5y trong:<\/p>\n

        \n
      1. \n

        C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng quan tr\u1ecdng<\/strong>: H\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng quan tr\u1ecdng nh\u01b0 nh\u00e0 m\u00e1y \u0111i\u1ec7n, h\u1ec7 th\u1ed1ng giao th\u00f4ng v\u00e0 thi\u1ebft b\u1ecb y t\u1ebf \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n.<\/p>\n<\/li>\n

      2. \n

        H\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5<\/strong>: T\u00e0u v\u0169 tr\u1ee5, v\u1ec7 tinh v\u00e0 m\u00e1y bay s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t c\u1ee7a kh\u00f4ng gian c\u0169ng nh\u01b0 duy tr\u00ec kh\u1ea3 n\u0103ng li\u00ean l\u1ea1c v\u00e0 ki\u1ec3m so\u00e1t \u0111\u00e1ng tin c\u1eady.<\/p>\n<\/li>\n

      3. \n

        T\u00e0i ch\u00ednh v\u00e0 ng\u00e2n h\u00e0ng<\/strong>: C\u00e1c t\u1ed5 ch\u1ee9c t\u00e0i ch\u00ednh d\u1ef1a v\u00e0o h\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o x\u1eed l\u00fd giao d\u1ecbch li\u00ean t\u1ee5c v\u00e0 t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u.<\/p>\n<\/li>\n

      4. \n

        Vi\u1ec5n th\u00f4ng<\/strong>: M\u1ea1ng vi\u1ec5n th\u00f4ng s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i \u0111\u1ec3 duy tr\u00ec k\u1ebft n\u1ed1i li\u1ec1n m\u1ea1ch v\u00e0 ng\u0103n ch\u1eb7n s\u1ef1 gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5.<\/p>\n<\/li>\n

      5. \n

        C\u00e1c trung t\u00e2m d\u1eef li\u1ec7u<\/strong>: Kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i l\u00e0 r\u1ea5t quan tr\u1ecdng trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u \u0111\u1ec3 ng\u0103n ch\u1eb7n th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 duy tr\u00ec t\u00ednh kh\u1ea3 d\u1ee5ng c\u1ee7a c\u00e1c d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn.<\/p>\n<\/li>\n<\/ol>\n

        Nh\u1eefng th\u00e1ch th\u1ee9c li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i bao g\u1ed3m:<\/p>\n

          \n
        1. \n

          Tr\u1ecb gi\u00e1<\/strong>: Vi\u1ec7c tri\u1ec3n khai c\u00e1c c\u01a1 ch\u1ebf d\u1ef1 ph\u00f2ng v\u00e0 ch\u1ecbu l\u1ed7i c\u00f3 th\u1ec3 t\u1ed1n k\u00e9m, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng quy m\u00f4 nh\u1ecf.<\/p>\n<\/li>\n

        2. \n

          \u0110\u1ed9 ph\u1ee9c t\u1ea1p<\/strong>: H\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i c\u00f3 th\u1ec3 ph\u1ee9c t\u1ea1p trong vi\u1ec7c thi\u1ebft k\u1ebf, ki\u1ec3m tra v\u00e0 b\u1ea3o tr\u00ec, \u0111\u00f2i h\u1ecfi ki\u1ebfn th\u1ee9c v\u00e0 chuy\u00ean m\u00f4n chuy\u00ean m\u00f4n.<\/p>\n<\/li>\n

        3. \n

          Tr\u00ean kh\u00f4ng<\/strong>: C\u01a1 ch\u1ebf d\u1ef1 ph\u00f2ng v\u00e0 s\u1eeda l\u1ed7i c\u00f3 th\u1ec3 g\u00e2y ra m\u1ed9t s\u1ed1 chi ph\u00ed v\u1ec1 hi\u1ec7u n\u0103ng, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<\/li>\n<\/ol>\n

          C\u00e1c gi\u1ea3i ph\u00e1p \u0111\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y bao g\u1ed3m vi\u1ec7c ph\u00e2n t\u00edch chi ph\u00ed-l\u1ee3i \u00edch m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn, s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ph\u00e1t hi\u1ec7n l\u1ed7i t\u1ef1 \u0111\u1ed9ng v\u00e0 s\u1eed d\u1ee5ng ki\u1ebfn tr\u00fac c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng.<\/p>\n

          C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 so s\u00e1nh kh\u00e1c v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n\n\n\n\n\n\n\n\n
          \u0111\u1eb7c tr\u01b0ng<\/th>\nH\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i<\/th>\nH\u1ec7 th\u1ed1ng c\u00f3 t\u00ednh s\u1eb5n s\u00e0ng cao<\/th>\nH\u1ec7 th\u1ed1ng d\u1ef1 ph\u00f2ng<\/th>\n<\/tr>\n<\/thead>\n
          M\u1ee5c \u0111\u00edch<\/td>\n\u0110\u1ec3 cung c\u1ea5p ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c v\u00e0 gi\u1ea3m thi\u1ec3u th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng khi c\u00f3 l\u1ed7i.<\/td>\n\u0110\u1ec3 duy tr\u00ec c\u00e1c d\u1ecbch v\u1ee5 s\u1eb5n c\u00f3 v\u00e0 ho\u1ea1t \u0111\u1ed9ng v\u1edbi s\u1ef1 gi\u00e1n \u0111o\u1ea1n t\u1ed1i thi\u1ec3u.<\/td>\n\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00f3 s\u1eb5n c\u00e1c th\u00e0nh ph\u1ea7n sao l\u01b0u ho\u1eb7c sao ch\u00e9p \u0111\u1ec3 x\u1eed l\u00fd l\u1ed7i.<\/td>\n<\/tr>\n
          T\u1eadp trung<\/td>\nKh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i v\u00e0 ph\u1ee5c h\u1ed3i sau th\u1ea5t b\u1ea1i.<\/td>\nS\u1eb5n c\u00f3 d\u1ecbch v\u1ee5 li\u00ean t\u1ee5c.<\/td>\nSao ch\u00e9p c\u00e1c th\u00e0nh ph\u1ea7n quan tr\u1ecdng.<\/td>\n<\/tr>\n
          C\u00e1c th\u00e0nh ph\u1ea7n<\/td>\nPh\u1ea7n c\u1ee9ng d\u1ef1 ph\u00f2ng, ph\u00e1t hi\u1ec7n l\u1ed7i, c\u01a1 ch\u1ebf ph\u1ee5c h\u1ed3i.<\/td>\nPh\u1ea7n c\u1ee9ng d\u1ef1 ph\u00f2ng, c\u00e2n b\u1eb1ng t\u1ea3i, c\u01a1 ch\u1ebf chuy\u1ec3n \u0111\u1ed5i d\u1ef1 ph\u00f2ng.<\/td>\nPh\u1ea7n c\u1ee9ng tr\u00f9ng l\u1eb7p, chuy\u1ec3n \u0111\u1ed5i t\u1ef1 \u0111\u1ed9ng.<\/td>\n<\/tr>\n
          \u1ee8ng d\u1ee5ng<\/td>\nC\u00e1c h\u1ec7 th\u1ed1ng quan tr\u1ecdng, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, \u0111i\u1ec1u khi\u1ec3n c\u00f4ng nghi\u1ec7p.<\/td>\nD\u1ecbch v\u1ee5 web, \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y, trung t\u00e2m d\u1eef li\u1ec7u.<\/td>\nQuy tr\u00ecnh c\u00f4ng nghi\u1ec7p, h\u1ec7 th\u1ed1ng quan tr\u1ecdng v\u1ec1 an to\u00e0n.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Tri\u1ec3n v\u1ecdng v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ee7a t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i<\/h2>\n

          Khi c\u00f4ng ngh\u1ec7 ti\u1ebfn b\u1ed9, c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i \u0111\u01b0\u1ee3c k\u1ef3 v\u1ecdng s\u1ebd tr\u1edf n\u00ean tinh vi v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng h\u01a1n n\u1eefa. M\u1ed9t s\u1ed1 quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 trong t\u01b0\u01a1ng lai trong l\u0129nh v\u1ef1c n\u00e0y bao g\u1ed3m:<\/p>\n

            \n
          1. \n

            Ph\u00e1t hi\u1ec7n l\u1ed7i t\u1ef1 \u0111\u1ed9ng<\/strong>: H\u1ec7 th\u1ed1ng t\u1ef1 ph\u1ee5c h\u1ed3i c\u00f3 kh\u1ea3 n\u0103ng t\u1ef1 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n v\u00e0 ph\u1ee5c h\u1ed3i sau l\u1ed7i m\u00e0 kh\u00f4ng c\u1ea7n s\u1ef1 can thi\u1ec7p c\u1ee7a con ng\u01b0\u1eddi.<\/p>\n<\/li>\n

          2. \n

            S\u1eeda l\u1ed7i l\u01b0\u1ee3ng t\u1eed<\/strong>: T\u1eadn d\u1ee5ng c\u00e1c nguy\u00ean t\u1eafc \u0111i\u1ec7n to\u00e1n l\u01b0\u1ee3ng t\u1eed \u0111\u1ec3 ph\u00e1t tri\u1ec3n m\u00e1y t\u00ednh l\u01b0\u1ee3ng t\u1eed c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i v\u1edbi c\u00e1c m\u00e3 s\u1eeda l\u1ed7i.<\/p>\n<\/li>\n

          3. \n

            T\u00edch h\u1ee3p h\u1ecdc m\u00e1y<\/strong>: S\u1eed d\u1ee5ng c\u00e1c thu\u1eadt to\u00e1n h\u1ecdc m\u00e1y \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n v\u00e0 ng\u0103n ng\u1eeba c\u00e1c l\u1ed7i c\u00f3 th\u1ec3 x\u1ea3y ra, c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i ch\u1ee7 \u0111\u1ed9ng.<\/p>\n<\/li>\n

          4. \n

            Dung sai l\u1ed7i ph\u00e2n t\u00e1n<\/strong>: Ph\u00e1t tri\u1ec3n c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n ph\u00e2n t\u00e1n \u0111\u1ec3 n\u00e2ng cao kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 c\u00e1ch ly l\u1ed7i.<\/p>\n<\/li>\n

          5. \n

            \u0110\u1ed3ng thi\u1ebft k\u1ebf ph\u1ea7n c\u1ee9ng-ph\u1ea7n m\u1ec1m<\/strong>: C\u00e1c ph\u01b0\u01a1ng ph\u00e1p thi\u1ebft k\u1ebf h\u1ee3p t\u00e1c gi\u00fap t\u1ed1i \u01b0u h\u00f3a c\u1ea3 th\u00e0nh ph\u1ea7n ph\u1ea7n c\u1ee9ng v\u00e0 ph\u1ea7n m\u1ec1m \u0111\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i.<\/p>\n<\/li>\n<\/ol>\n

            C\u00e1ch s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft m\u00e1y ch\u1ee7 proxy v\u1edbi h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i<\/h2>\n

            M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c n\u00e2ng cao kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i cho c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau. B\u1eb1ng c\u00e1ch \u0111\u00f3ng vai tr\u00f2 trung gian gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7, m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3:<\/p>\n

              \n
            1. \n

              C\u00e2n b\u1eb1ng t\u1ea3i<\/strong>: M\u00e1y ch\u1ee7 proxy ph\u00e2n ph\u1ed1i c\u00e1c y\u00eau c\u1ea7u c\u1ee7a m\u00e1y kh\u00e1ch gi\u1eefa nhi\u1ec1u m\u00e1y ch\u1ee7 ph\u1ee5 tr\u1ee3, \u0111\u1ea3m b\u1ea3o s\u1eed d\u1ee5ng \u0111\u1ed3ng \u0111\u1ec1u c\u00e1c t\u00e0i nguy\u00ean v\u00e0 ng\u0103n ch\u1eb7n t\u00ecnh tr\u1ea1ng qu\u00e1 t\u1ea3i.<\/p>\n<\/li>\n

            2. \n

              Ph\u00e1t hi\u1ec7n l\u1ed7i<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 theo d\u00f5i t\u00ecnh tr\u1ea1ng v\u00e0 kh\u1ea3 n\u0103ng ph\u1ea3n h\u1ed3i c\u1ee7a m\u00e1y ch\u1ee7 ph\u1ee5 tr\u1ee3, ph\u00e1t hi\u1ec7n l\u1ed7i v\u00e0 t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n h\u01b0\u1edbng c\u00e1c y\u00eau c\u1ea7u kh\u1ecfi m\u00e1y ch\u1ee7 b\u1ecb \u1ea3nh h\u01b0\u1edfng.<\/p>\n<\/li>\n

            3. \n

              B\u1ed9 nh\u1edb \u0111\u1ec7m<\/strong>: Vi\u1ec7c l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u th\u01b0\u1eddng xuy\u00ean t\u1ea1i m\u00e1y ch\u1ee7 proxy gi\u00fap gi\u1ea3m t\u1ea3i cho c\u00e1c m\u00e1y ch\u1ee7 ph\u1ee5 tr\u1ee3 v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<\/li>\n

            4. \n

              H\u1ed7 tr\u1ee3 chuy\u1ec3n \u0111\u1ed5i d\u1ef1 ph\u00f2ng<\/strong>: C\u00f9ng v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i, m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n \u0111\u1ed5i d\u1ef1 ph\u00f2ng sang c\u00e1c th\u00e0nh ph\u1ea7n d\u1ef1 ph\u00f2ng khi ph\u00e1t hi\u1ec7n th\u1ea5y l\u1ed7i.<\/p>\n<\/li>\n

            5. \n

              B\u1ea3o v\u1ec7<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t l\u1edbp b\u1ea3o m\u1eadt b\u1ed5 sung, b\u1ea3o v\u1ec7 c\u00e1c m\u00e1y ch\u1ee7 ph\u1ee5 tr\u1ee3 kh\u1ecfi ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi Internet v\u00e0 gi\u1ea3m thi\u1ec3u c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ti\u1ec1m \u1ea9n.<\/p>\n<\/li>\n<\/ol>\n

              Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n

              \u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i, b\u1ea1n c\u00f3 th\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n

                \n
              1. Dung sai l\u1ed7i - Wikipedia<\/a><\/li>\n
              2. Gi\u1edbi thi\u1ec7u v\u1ec1 H\u1ec7 th\u1ed1ng ch\u1ecbu l\u1ed7i - \u0110\u1ea1i h\u1ecdc Texas<\/a><\/li>\n
              3. Gi\u1edbi thi\u1ec7u v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i v\u00e0 d\u1ef1 ph\u00f2ng \u2013 Oracle<\/a><\/li>\n<\/ol>\n

                H\u00e3y nh\u1edb r\u1eb1ng, kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i l\u00e0 m\u1ed9t kh\u00eda c\u1ea1nh quan tr\u1ecdng c\u1ee7a h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh hi\u1ec7n \u0111\u1ea1i, \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c d\u1ecbch v\u1ee5 quan tr\u1ecdng lu\u00f4n s\u1eb5n c\u00f3 v\u00e0 \u0111\u00e1ng tin c\u1eady ngay c\u1ea3 khi g\u1eb7p l\u1ed7i. Vi\u1ec7c tri\u1ec3n khai c\u00e1c k\u1ef9 thu\u1eadt ch\u1ecbu l\u1ed7i v\u00e0 s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 n\u00e2ng cao \u0111\u00e1ng k\u1ec3 kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t v\u1ea5n \u0111\u1ec1 c\u1ea7n \u0111\u01b0\u1ee3c c\u00e2n nh\u1eafc \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 t\u1ed5 ch\u1ee9c n\u00e0o.<\/p>","protected":false},"featured_media":468378,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-477195","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Fault-tolerant computer system: Ensuring Resilience in Computing<\/mark>","faq_items":[{"question":"What is a Fault-tolerant computer system?","answer":"

                A Fault-tolerant computer system is a type of computing architecture designed to provide high availability and reliability by continuing to function correctly even when some of its components fail. It employs redundancy and error detection mechanisms to ensure continuous operation and reduce downtime.<\/p>"},{"question":"How did Fault-tolerant computer systems originate?","answer":"

                The concept of fault tolerance dates back to the early days of computing in the 1940s when researchers and engineers recognized the inevitability of hardware and software failures. The first mention of fault tolerance can be found in the works of John von Neumann during the development of the Electronic Discrete Variable Automatic Computer (EDVAC).<\/p>"},{"question":"What are the key features of Fault-tolerant computer systems?","answer":"

                Fault-tolerant computer systems offer high availability, reliability, fault detection, recovery, graceful degradation, scalability, error correction, and fault isolation. These features ensure continuous operation and resilience in the face of failures.<\/p>"},{"question":"What are the types of Fault-tolerant computer systems?","answer":"

                There are several types of fault-tolerant computer systems based on redundancy and techniques used. Some common types include N-modular redundancy, Spare unit redundancy, Dual Modular Redundancy (DMR), Software Rollback, N-version programming, and Data Replication.<\/p>"},{"question":"How can Fault-tolerant computer systems be used?","answer":"

                Fault-tolerant computer systems find applications in critical infrastructure, aerospace, finance, banking, telecommunications, and data centers, among others. They ensure uninterrupted operation and maintain service availability in these crucial sectors.<\/p>"},{"question":"What are the challenges related to using Fault-tolerant computer systems?","answer":"

                Implementing fault-tolerant systems can be costly and complex. Additionally, redundant components may introduce performance overhead. Solutions involve cost-benefit analysis, automated fault detection, and scalable architectures.<\/p>"},{"question":"What are the future perspectives and technologies related to Fault-tolerant computer systems?","answer":"

                The future of fault tolerance includes autonomous fault detection, quantum error correction, machine learning integration, distributed fault tolerance, and hardware-software co-design.<\/p>"},{"question":"How can proxy servers be associated with Fault-tolerant computer systems?","answer":"

                Proxy servers complement fault tolerance by providing load balancing, fault detection, caching, failover support, and enhanced security. They act as intermediaries between clients and servers, improving overall system resilience.<\/p>"},{"question":"Where can I find more information about Fault-tolerant computer systems?","answer":"

                For more in-depth information about Fault-tolerant computer systems, you can explore the following resources:<\/p>

                1. Fault Tolerance - Wikipedia<\/li>
                2. Introduction to Fault-Tolerant Systems - University of Texas<\/li>
                3. Introduction to Fault Tolerance and Redundancy - Oracle<\/li><\/ol>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/477195","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/477195\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/468378"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=477195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}