{"id":39282,"date":"2026-02-09T16:35:01","date_gmt":"2026-02-09T09:35:01","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=39282"},"modified":"2026-02-11T14:18:53","modified_gmt":"2026-02-11T07:18:53","slug":"ceph","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/ceph\/","title":{"rendered":"Ceph l\u00e0 g\u00ec? \u01afu, nh\u01b0\u1ee3c \u0111i\u1ec3m v\u00e0 \u1ee8ng d\u1ee5ng Ceph t\u1eeb A-Z"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed8I DUNG<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Ceph-la-gi\" >Ceph l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Tai-sao-doanh-nghiep-nen-chon-Ceph-Storage\" >T\u1ea1i sao doanh nghi\u1ec7p n\u00ean ch\u1ecdn Ceph Storage?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Kha-nang-mo-rong-cao-Scalability\" >Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng cao (Scalability)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Do-tin-cay-va-tinh-san-sang-cao-High-Availability\" >\u0110\u1ed9 tin c\u1eady v\u00e0 t\u00ednh s\u1eb5n s\u00e0ng cao (High Availability)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Toi-uu-chi-phi-dau-tu-TCO\" >T\u1ed1i \u01b0u chi ph\u00ed \u0111\u1ea7u t\u01b0 (TCO)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Kha-nang-tich-hop-nhieu-dang-luu-tru\" >Kh\u1ea3 n\u0103ng t\u00edch h\u1ee3p nhi\u1ec1u d\u1ea1ng l\u01b0u tr\u1eef<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Kien-truc-cot-loi-cua-he-thong-Ceph\" >Ki\u1ebfn tr\u00fac c\u1ed1t l\u00f5i c\u1ee7a h\u1ec7 th\u1ed1ng Ceph<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#RADOS-Reliable-Autonomic-Distributed-Object-Store\" >RADOS (Reliable Autonomic Distributed Object Store)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Cac-thanh-phan-chinh-Daemons\" >C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh (Daemons)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Thuat-toan-CRUSH\" >Thu\u1eadt to\u00e1n CRUSH<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#3-Phuong-thuc-luu-tru-chinh-trong-Ceph\" >3 Ph\u01b0\u01a1ng th\u1ee9c l\u01b0u tr\u1eef ch\u00ednh trong Ceph<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Ceph-Block-Device-RBD\" >Ceph Block Device (RBD)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Ceph-Object-Storage-RGW\" >Ceph Object Storage (RGW)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Ceph-File-System-CephFS\" >Ceph File System (CephFS)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Uu-va-nhuoc-diem-cua-Ceph\" >\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a Ceph<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Uu-diem\" >\u01afu \u0111i\u1ec3m<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Nhuoc-diem\" >Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#So-sanh-Ceph-voi-SANNAS-truyen-thong-va-GlusterFS\" >So s\u00e1nh Ceph v\u1edbi SAN\/NAS truy\u1ec1n th\u1ed1ng v\u00e0 GlusterFS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Ung-dung-thuc-te-cua-Ceph-trong-ha-tang-IT\" >\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a Ceph trong h\u1ea1 t\u1ea7ng IT<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Khi-nao-nen-va-khong-nen-su-dung-Ceph\" >Khi n\u00e0o n\u00ean (v\u00e0 kh\u00f4ng n\u00ean) s\u1eed d\u1ee5ng Ceph?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Cac-cong-ty-su-dung-Ceph\" >C\u00e1c c\u00f4ng ty s\u1eed d\u1ee5ng Ceph<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#Cac-cau-hoi-thuong-gap-ve-Ceph-FAQs\" >C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 Ceph (FAQs)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#1-Ceph-co-mien-phi-hoan-toan-khong\" >1. Ceph c\u00f3 mi\u1ec5n ph\u00ed ho\u00e0n to\u00e0n kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#2-Can-toi-thieu-bao-nhieu-Node-de-dung-mot-Ceph-Cluster-on-dinh\" >2. C\u1ea7n t\u1ed1i thi\u1ec3u bao nhi\u00eau Node \u0111\u1ec3 d\u1ef1ng m\u1ed9t Ceph Cluster \u1ed5n \u0111\u1ecbnh?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#3-Ceph-co-yeu-cau-phan-cung-dac-biet-khong\" >3. Ceph c\u00f3 y\u00eau c\u1ea7u ph\u1ea7n c\u1ee9ng \u0111\u1eb7c bi\u1ec7t kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#4-Ceph-va-RAID-co-giong-nhau-khong\" >4. Ceph v\u00e0 RAID c\u00f3 gi\u1ed1ng nhau kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/interdata.vn\/blog\/ceph\/#5-Khi-nao-khong-nen-su-dung-Ceph\" >5. Khi n\u00e0o kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng Ceph?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<div class=\"summary\">\n<p><strong>T\u00f3m t\u1eaft n\u1ed9i dung:<\/strong><\/p>\n<p><strong>Ceph<\/strong> l\u00e0 n\u1ec1n t\u1ea3ng l\u01b0u tr\u1eef ph\u00e2n t\u00e1n m\u00e3 ngu\u1ed3n m\u1edf (Software-Defined Storage) cho ph\u00e9p h\u1ee3p nh\u1ea5t l\u01b0u tr\u1eef Block, Object v\u00e0 File tr\u00ean m\u1ed9t c\u1ee5m m\u00e1y ch\u1ee7 duy nh\u1ea5t. Gi\u1ea3i ph\u00e1p n\u00e0y gi\u00fap doanh nghi\u1ec7p lo\u1ea1i b\u1ecf s\u1ef1 ph\u1ee5 thu\u1ed9c v\u00e0o ph\u1ea7n c\u1ee9ng \u0111\u1eaft ti\u1ec1n, t\u1ed1i \u01b0u chi ph\u00ed v\u1eadn h\u00e0nh v\u00e0 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng quy m\u00f4 d\u1eef li\u1ec7u kh\u00f4ng gi\u1edbi h\u1ea1n.<\/p>\n<p><strong>Th\u00f4ng tin tr\u1ecdng t\u00e2m:<\/strong><\/p>\n<ul>\n<li><strong>Kh\u00e1i ni\u1ec7m c\u1ed1t l\u00f5i:<\/strong> M\u1ed9t h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef \u0111\u1ecbnh ngh\u0129a b\u1eb1ng ph\u1ea7n m\u1ec1m (SDS) ch\u1ea1y tr\u00ean c\u00e1c thi\u1ebft b\u1ecb ph\u1ea7n c\u1ee9ng ti\u00eau chu\u1ea9n.<\/li>\n<li><strong>C\u01a1 ch\u1ebf v\u1eadn h\u00e0nh:<\/strong> S\u1eed d\u1ee5ng thu\u1eadt to\u00e1n CRUSH \u0111\u1ec3 t\u00ednh to\u00e1n v\u1ecb tr\u00ed d\u1eef li\u1ec7u thay v\u00ec tra c\u1ee9u b\u1ea3ng th\u1ee7 c\u00f4ng, gi\u00fap lo\u1ea1i b\u1ecf \u0111i\u1ec3m ngh\u1ebdn hi\u1ec7u n\u0103ng.<\/li>\n<li><strong>Th\u00e0nh ph\u1ea7n ch\u00ednh:<\/strong> Bao g\u1ed3m c\u00e1c daemons nh\u01b0 OSD (l\u01b0u tr\u1eef), Monitor (gi\u00e1m s\u00e1t), v\u00e0 Manager (qu\u1ea3n l\u00fd), Metadata Servers (MDS).<\/li>\n<li><strong>L\u1ee3i \u00edch &amp; \u1ee8ng d\u1ee5ng:<\/strong> Cung c\u1ea5p t\u00ednh s\u1eb5n s\u00e0ng cao (High Availability), kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng cao, gi\u1ea3m t\u1edbi 50% chi ph\u00ed \u0111\u1ea7u t\u01b0 (TCO) v\u00e0 l\u00e0 h\u1ea1 t\u1ea7ng l\u00fd t\u01b0\u1edfng cho Cloud, Kubernetes v\u00e0 d\u1eef li\u1ec7u l\u1edbn.<\/li>\n<li><strong>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQs)<\/strong><\/li>\n<\/ul>\n<\/div>\n<p>S\u1ef1 gia t\u0103ng \u0111\u1ed9t bi\u1ebfn c\u1ee7a d\u1eef li\u1ec7u l\u1edbn (Big Data) \u0111ang \u0111\u1eb7t ra th\u00e1ch th\u1ee9c nghi\u00eam tr\u1ecdng cho h\u1ea1 t\u1ea7ng l\u01b0u tr\u1eef truy\u1ec1n th\u1ed1ng. C\u00e1c h\u1ec7 th\u1ed1ng SAN (Storage Area Network) ho\u1eb7c NAS (Network Attached Storage) chuy\u00ean d\u1ee5ng th\u01b0\u1eddng \u0111i k\u00e8m m\u1ee9c chi ph\u00ed b\u1ea3n quy\u1ec1n v\u00e0 ph\u1ea7n c\u1ee9ng \u0111\u1eaft \u0111\u1ecf, g\u00e2y \u00e1p l\u1ef1c l\u00ean ng\u00e2n s\u00e1ch c\u1ee7a nhi\u1ec1u doanh nghi\u1ec7p. Tr\u01b0\u1edbc b\u00e0i to\u00e1n n\u00e0y, <strong>Ceph<\/strong> tr\u1edf th\u00e0nh ch\u1ee7 \u0111\u1ec1 \u0111\u01b0\u1ee3c nhi\u1ec1u k\u1ef9 s\u01b0 h\u1ec7 th\u1ed1ng quan t\u00e2m khi t\u00ecm ki\u1ebfm m\u1ed9t gi\u1ea3i ph\u00e1p thay th\u1ebf linh ho\u1ea1t. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd c\u00f9ng t\u00ecm hi\u1ec3u t\u1ed5ng quan <strong>Ceph l\u00e0 g\u00ec<\/strong>, t\u1eeb ki\u1ebfn tr\u00fac, c\u00e1c lo\u1ea1i l\u01b0u tr\u1eef h\u1ed7 tr\u1ee3 cho \u0111\u1ebfn \u01b0u nh\u01b0\u1ee3c \u0111i\u1ec3m v\u00e0 nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00ean (ho\u1eb7c kh\u00f4ng n\u00ean) tri\u1ec3n khai Ceph trong th\u1ef1c t\u1ebf.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ceph-la-gi\"><\/span><strong>Ceph l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Ceph<\/strong> l\u00e0 m\u1ed9t <strong>n\u1ec1n t\u1ea3ng l\u01b0u tr\u1eef m\u00e3 ngu\u1ed3n m\u1edf<\/strong> cung c\u1ea5p <strong>gi\u1ea3i ph\u00e1p l\u01b0u tr\u1eef h\u1ee3p nh\u1ea5t<\/strong> (Unified Storage) d\u01b0\u1edbi d\u1ea1ng kh\u1ed1i (Block), \u0111\u1ed1i t\u01b0\u1ee3ng (Object) v\u00e0 t\u1ec7p tin (File) tr\u00ean m\u1ed9t c\u1ee5m m\u00e1y ch\u1ee7 (Cluster) duy nh\u1ea5t. Kh\u00e1c v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef truy\u1ec1n th\u1ed1ng d\u1ef1a tr\u00ean ph\u1ea7n c\u1ee9ng, Ceph ho\u1ea1t \u0111\u1ed9ng theo m\u00f4 h\u00ecnh l\u01b0u tr\u1eef \u0111\u1ecbnh ngh\u0129a b\u1eb1ng ph\u1ea7n m\u1ec1m (Software-Defined Storage &#8211; SDS), cho ph\u00e9p t\u00e1ch r\u1eddi l\u1edbp qu\u1ea3n l\u00fd d\u1eef li\u1ec7u kh\u1ecfi l\u1edbp thi\u1ebft b\u1ecb v\u1eadt l\u00fd.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-39301\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Ceph-la-gi.jpg\" alt=\"Ceph l\u00e0 g\u00ec\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Ceph-la-gi.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Ceph-la-gi-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Ceph-la-gi-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>N\u1ec1n t\u1ea3ng n\u00e0y b\u1eaft ngu\u1ed3n t\u1eeb d\u1ef1 \u00e1n nghi\u00ean c\u1ee9u ti\u1ebfn s\u0129 c\u1ee7a Sage Weil t\u1ea1i \u0110\u1ea1i h\u1ecdc California, Santa Cruz v\u00e0o n\u0103m 2003. M\u1ee5c ti\u00eau ban \u0111\u1ea7u l\u00e0 t\u1ea1o ra m\u1ed9t h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng c\u1ef1c cao m\u00e0 kh\u00f4ng c\u00f3 b\u1ea5t k\u1ef3 \u0111i\u1ec3m l\u1ed7i \u0111\u01a1n l\u1ebb n\u00e0o (No single point of failure). Gi\u1ea3i ph\u00e1p n\u00e0y \u0111\u01b0\u1ee3c c\u1ed9ng \u0111\u1ed3ng m\u00e3 ngu\u1ed3n m\u1edf \u0111\u00f3n nh\u1eadn m\u1ea1nh m\u1ebd v\u00e0 hi\u1ec7n \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd b\u1edfi Ceph Foundation (thu\u1ed9c Linux Foundation).<\/p>\n<p>\u0110i\u1ec3m \u0111\u1eb7c bi\u1ec7t khi\u1ebfn gi\u1edbi chuy\u00ean gia \u0111\u00e1nh gi\u00e1 cao h\u1ec7 th\u1ed1ng n\u00e0y l\u00e0 t\u00ednh &#8220;h\u1ee3p nh\u1ea5t&#8221;. Thay v\u00ec ph\u1ea3i duy tr\u00ec ba h\u1ec7 th\u1ed1ng ri\u00eang bi\u1ec7t cho c\u00e1c nhu c\u1ea7u kh\u00e1c nhau, ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 c\u1ea7n m\u1ed9t Cluster duy nh\u1ea5t \u0111\u1ec3 \u0111\u00e1p \u1ee9ng to\u00e0n b\u1ed9 c\u00e1c giao th\u1ee9c l\u01b0u tr\u1eef ph\u1ed5 bi\u1ebfn hi\u1ec7n nay.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Tai-sao-doanh-nghiep-nen-chon-Ceph-Storage\"><\/span><strong>T\u1ea1i sao doanh nghi\u1ec7p n\u00ean ch\u1ecdn Ceph Storage?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Vi\u1ec7c chuy\u1ec3n d\u1ecbch t\u1eeb l\u01b0u tr\u1eef ph\u1ea7n c\u1ee9ng truy\u1ec1n th\u1ed1ng sang s\u1eed d\u1ee5ng <strong>Ceph storage<\/strong> mang l\u1ea1i nh\u1eefng l\u1ee3i th\u1ebf chi\u1ebfn l\u01b0\u1ee3c v\u1ec1 c\u1ea3 m\u1eb7t k\u1ef9 thu\u1eadt l\u1eabn t\u00e0i ch\u00ednh.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Kha-nang-mo-rong-cao-Scalability\"><\/span><strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng cao (Scalability)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>H\u1ec7 th\u1ed1ng n\u00e0y s\u1eed d\u1ee5ng c\u01a1 ch\u1ebf m\u1edf r\u1ed9ng theo chi\u1ec1u ngang (Scale-out). Khi dung l\u01b0\u1ee3ng ho\u1eb7c hi\u1ec7u n\u0103ng \u0111\u1ea1t ng\u01b0\u1ee1ng gi\u1edbi h\u1ea1n, ch\u00fang t\u00f4i ch\u1ec9 c\u1ea7n b\u1ed5 sung th\u00eam c\u00e1c node m\u00e1y ch\u1ee7 m\u1edbi v\u00e0o c\u1ee5m hi\u1ec7n t\u1ea1i.<\/p>\n<p>N\u1ec1n t\u1ea3ng s\u1ebd t\u1ef1 \u0111\u1ed9ng nh\u1eadn di\u1ec7n thi\u1ebft b\u1ecb m\u1edbi, c\u00e2n b\u1eb1ng l\u1ea1i d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng g\u00e2y gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5. Kh\u1ea3 n\u0103ng n\u00e0y cho ph\u00e9p c\u00e1c t\u1ed5 ch\u1ee9c b\u1eaft \u0111\u1ea7u t\u1eeb quy m\u00f4 nh\u1ecf v\u00e0 t\u0103ng tr\u01b0\u1edfng l\u00ean \u0111\u1ebfn h\u00e0ng Petabyte d\u1eef li\u1ec7u m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Do-tin-cay-va-tinh-san-sang-cao-High-Availability\"><\/span><strong>\u0110\u1ed9 tin c\u1eady v\u00e0 t\u00ednh s\u1eb5n s\u00e0ng cao (High Availability)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>T\u00ednh s\u1eb5n s\u00e0ng cao l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u c\u1ee7a m\u1ecdi k\u1ef9 s\u01b0 h\u1ea1 t\u1ea7ng. Trong ki\u1ebfn tr\u00fac n\u00e0y, d\u1eef li\u1ec7u kh\u00f4ng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef t\u1eadp trung m\u00e0 \u0111\u01b0\u1ee3c ph\u00e2n t\u00e1n v\u00e0 nh\u00e2n b\u1ea3n (Replication) ho\u1eb7c s\u1eed d\u1ee5ng m\u00e3 h\u00f3a x\u00f3a (Erasure Coding) tr\u00ean nhi\u1ec1u node kh\u00e1c nhau.<\/p>\n<p>N\u1ebfu m\u1ed9t ho\u1eb7c v\u00e0i \u1ed5 c\u1ee9ng, th\u1eadm ch\u00ed l\u00e0 c\u1ea3 m\u1ed9t m\u00e1y ch\u1ee7 b\u1ecb l\u1ed7i, h\u1ec7 th\u1ed1ng v\u1eabn duy tr\u00ec ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng v\u00e0 t\u1ef1 \u0111\u1ed9ng ph\u1ee5c h\u1ed3i d\u1eef li\u1ec7u t\u1eeb c\u00e1c b\u1ea3n sao c\u00f2n l\u1ea1i.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-39303\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/doanh-nghiep-nen-chon-Ceph-Storage.jpg\" alt=\"doanh nghi\u1ec7p n\u00ean ch\u1ecdn Ceph Storage\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/doanh-nghiep-nen-chon-Ceph-Storage.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/doanh-nghiep-nen-chon-Ceph-Storage-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/doanh-nghiep-nen-chon-Ceph-Storage-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Toi-uu-chi-phi-dau-tu-TCO\"><\/span><strong>T\u1ed1i \u01b0u chi ph\u00ed \u0111\u1ea7u t\u01b0 (TCO)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t trong nh\u1eefng l\u00fd do khi\u1ebfn nhi\u1ec1u doanh nghi\u1ec7p chuy\u1ec3n sang gi\u1ea3i ph\u00e1p n\u00e0y l\u00e0 kh\u1ea3 n\u0103ng t\u1ed1i \u01b0u h\u00f3a chi ph\u00ed s\u1edf h\u1eefu (Total Cost of Ownership). Gi\u1ea3i ph\u00e1p n\u00e0y ch\u1ea1y tr\u00ean c\u00e1c ph\u1ea7n c\u1ee9ng ph\u1ed5 th\u00f4ng (Commodity hardware) t\u1eeb nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00e1c nhau, gi\u00fap lo\u1ea1i b\u1ecf t\u00ecnh tr\u1ea1ng b\u1ecb kh\u00f3a b\u1edfi nh\u00e0 cung c\u1ea5p (Vendor lock-in).<\/p>\n<p>C\u00e1c nghi\u00ean c\u1ee9u th\u1ef1c ti\u1ec5n t\u1eeb Red Hat ch\u1ec9 ra r\u1eb1ng vi\u1ec7c tri\u1ec3n khai SDS gi\u1ea3i ph\u00e1p m\u00e3 ngu\u1ed3n m\u1edf Ceph c\u00f3 th\u1ec3 gi\u00fap doanh nghi\u1ec7p gi\u1ea3m t\u1edbi 50% chi ph\u00ed so v\u1edbi vi\u1ec7c mua s\u1eafm c\u00e1c t\u1ee7 \u0111\u0129a SAN\/NAS chuy\u00ean d\u1ee5ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Kha-nang-tich-hop-nhieu-dang-luu-tru\"><\/span><strong>Kh\u1ea3 n\u0103ng t\u00edch h\u1ee3p nhi\u1ec1u d\u1ea1ng l\u01b0u tr\u1eef<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>T\u00ednh linh ho\u1ea1t l\u00e0 \u0111i\u1ec3m c\u1ed9ng l\u1edbn khi m\u1ed9t h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 cung c\u1ea5p \u0111\u1ed3ng th\u1eddi ba lo\u1ea1i h\u00ecnh l\u01b0u tr\u1eef: Block Device cho m\u00e1y \u1ea3o, Object Storage cho \u1ee9ng d\u1ee5ng hi\u1ec7n \u0111\u1ea1i v\u00e0 Shared File System cho nhu c\u1ea7u chia s\u1ebb d\u1eef li\u1ec7u truy\u1ec1n th\u1ed1ng. Vi\u1ec7c qu\u1ea3n tr\u1ecb t\u1eadp trung gi\u00fap gi\u1ea3m b\u1edbt g\u00e1nh n\u1eb7ng cho \u0111\u1ed9i ng\u0169 v\u1eadn h\u00e0nh v\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a quy tr\u00ecnh gi\u00e1m s\u00e1t h\u1ea1 t\u1ea7ng.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Kien-truc-cot-loi-cua-he-thong-Ceph\"><\/span><strong>Ki\u1ebfn tr\u00fac c\u1ed1t l\u00f5i c\u1ee7a h\u1ec7 th\u1ed1ng Ceph<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110\u1ec3 hi\u1ec3u r\u00f5 t\u1ea1i sao h\u1ec7 th\u1ed1ng n\u00e0y l\u1ea1i m\u1ea1nh m\u1ebd \u0111\u1ebfn v\u1eady, ch\u00fang ta c\u1ea7n ph\u00e2n t\u00edch s\u00e2u v\u00e0o ki\u1ebfn tr\u00fac b\u00ean trong, n\u01a1i c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ed1i h\u1ee3p nh\u1ecbp nh\u00e0ng v\u1edbi nhau.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"RADOS-Reliable-Autonomic-Distributed-Object-Store\"><\/span><strong>RADOS (Reliable Autonomic Distributed Object Store)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>RADOS l\u00e0 tr\u00e1i tim v\u00e0 l\u00e0 l\u1edbp n\u1ec1n t\u1ea3ng quan tr\u1ecdng nh\u1ea5t. M\u1ecdi d\u1eef li\u1ec7u \u0111i v\u00e0o h\u1ec7 th\u1ed1ng, d\u00f9 l\u00e0 t\u1ec7p tin hay kh\u1ed1i \u0111\u0129a, cu\u1ed1i c\u00f9ng \u0111\u1ec1u \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng (Objects) v\u00e0 l\u01b0u tr\u1eef trong RADOS. L\u1edbp n\u00e0y \u0111\u1ea3m nh\u1eadn nhi\u1ec7m v\u1ee5 t\u1ef1 \u0111\u1ed9ng ki\u1ec3m tra t\u00ednh to\u00e0n v\u1eb9n, nh\u00e2n b\u1ea3n d\u1eef li\u1ec7u v\u00e0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 khi c\u00f3 node l\u1ed7i m\u00e0 kh\u00f4ng c\u1ea7n s\u1ef1 can thi\u1ec7p th\u1ee7 c\u00f4ng c\u1ee7a con ng\u01b0\u1eddi.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cac-thanh-phan-chinh-Daemons\"><\/span><strong><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-39304\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Kien-truc-cot-loi-cua-he-thong-Ceph.jpg\" alt=\"Ki\u1ebfn tr\u00fac c\u1ed1t l\u00f5i c\u1ee7a h\u1ec7 th\u1ed1ng Ceph\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Kien-truc-cot-loi-cua-he-thong-Ceph.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Kien-truc-cot-loi-cua-he-thong-Ceph-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Kien-truc-cot-loi-cua-he-thong-Ceph-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/>C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh (Daemons)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t Cluster ti\u00eau chu\u1ea9n bao g\u1ed3m c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ea7n m\u1ec1m ch\u1ea1y d\u01b0\u1edbi d\u1ea1ng daemon sau:<\/p>\n<ul>\n<li><strong>Ceph OSDs (Object Storage Daemons):<\/strong> \u0110\u00e2y l\u00e0 th\u00e0nh ph\u1ea7n tr\u1ef1c ti\u1ebfp l\u01b0u tr\u1eef d\u1eef li\u1ec7u tr\u00ean c\u00e1c \u1ed5 \u0111\u0129a v\u1eadt l\u00fd. OSD c\u0169ng x\u1eed l\u00fd vi\u1ec7c sao ch\u00e9p, ph\u1ee5c h\u1ed3i v\u00e0 t\u00e1i c\u00e2n b\u1eb1ng d\u1eef li\u1ec7u.<\/li>\n<li><strong>Monitors (MON):<\/strong> Th\u00e0nh ph\u1ea7n n\u00e0y duy tr\u00ec &#8220;b\u1ea3n \u0111\u1ed3&#8221; (Map) v\u1ec1 tr\u1ea1ng th\u00e1i c\u1ee7a Cluster, bao g\u1ed3m danh s\u00e1ch c\u00e1c node \u0111ang ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u1ea5u h\u00ecnh h\u1ec7 th\u1ed1ng. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh \u0111\u1ed3ng thu\u1eadn, m\u1ed9t c\u1ee5m th\u01b0\u1eddng c\u1ea7n s\u1ed1 l\u01b0\u1ee3ng Monitor l\u1ebb (v\u00ed d\u1ee5: 3 ho\u1eb7c 5 node).<\/li>\n<li><strong>Managers (MGR):<\/strong> Th\u00e0nh ph\u1ea7n n\u00e0y ch\u1ecbu tr\u00e1ch nhi\u1ec7m theo d\u00f5i c\u00e1c ch\u1ec9 s\u1ed1 hi\u1ec7u n\u0103ng (metrics), tr\u1ea1ng th\u00e1i s\u1eed d\u1ee5ng dung l\u01b0\u1ee3ng v\u00e0 cung c\u1ea5p giao di\u1ec7n qu\u1ea3n l\u00fd (Dashboard).<\/li>\n<li><strong>Metadata Servers (MDS):<\/strong> Ch\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi tri\u1ec3n khai CephFS, MDS l\u01b0u tr\u1eef th\u00f4ng tin v\u1ec1 c\u1ea5u tr\u00fac th\u01b0 m\u1ee5c, quy\u1ec1n truy c\u1eadp v\u00e0 v\u1ecb tr\u00ed t\u1ec7p tin \u0111\u1ec3 gi\u1ea3m t\u1ea3i cho c\u00e1c OSD.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Thuat-toan-CRUSH\"><\/span><strong>Thu\u1eadt to\u00e1n CRUSH<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y ch\u00ednh l\u00e0 &#8220;linh h\u1ed3n&#8221; t\u1ea1o n\u00ean s\u1ef1 kh\u00e1c bi\u1ec7t. Trong c\u00e1c h\u1ec7 th\u1ed1ng c\u0169, vi\u1ec7c t\u00ecm ki\u1ebfm d\u1eef li\u1ec7u d\u1ef1a v\u00e0o m\u1ed9t b\u1ea3ng tra c\u1ee9u trung t\u00e2m (Metadata table). Khi h\u1ec7 th\u1ed1ng l\u1edbn d\u1ea7n, b\u1ea3ng n\u00e0y tr\u1edf th\u00e0nh \u0111i\u1ec3m ngh\u1ebdn c\u1ed5 chai.<\/p>\n<p>Ng\u01b0\u1ee3c l\u1ea1i, thu\u1eadt to\u00e1n CRUSH (Controlled Replication Under Scalable Hashing) cho ph\u00e9p c\u00e1c m\u00e1y kh\u00e1ch (Clients) t\u1ef1 t\u00ednh to\u00e1n v\u1ecb tr\u00ed c\u1ee7a d\u1eef li\u1ec7u d\u1ef1a tr\u00ean c\u00e1c quy t\u1eafc \u0111\u1ecbnh s\u1eb5n. \u0110i\u1ec1u n\u00e0y lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n s\u1ef1 ph\u1ee5 thu\u1ed9c v\u00e0o m\u00e1y ch\u1ee7 qu\u1ea3n l\u00fd trung t\u00e2m, gi\u00fap h\u1ec7 th\u1ed1ng m\u1edf r\u1ed9ng quy m\u00f4 m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m t\u1ed1c \u0111\u1ed9 truy xu\u1ea5t.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"3-Phuong-thuc-luu-tru-chinh-trong-Ceph\"><\/span><strong>3 Ph\u01b0\u01a1ng th\u1ee9c l\u01b0u tr\u1eef ch\u00ednh trong Ceph<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>D\u1ef1a tr\u00ean n\u1ec1n t\u1ea3ng RADOS, h\u1ec7 th\u1ed1ng cung c\u1ea5p ba giao di\u1ec7n l\u01b0u tr\u1eef ph\u00f9 h\u1ee3p v\u1edbi m\u1ecdi nhu c\u1ea7u c\u1ee7a doanh nghi\u1ec7p.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ceph-Block-Device-RBD\"><\/span><strong>Ceph Block Device (RBD)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>RBD cung c\u1ea5p c\u00e1c \u1ed5 \u0111\u0129a \u1ea3o c\u00f3 th\u1ec3 g\u1eafn v\u00e0o m\u00e1y \u1ea3o (VM) ho\u1eb7c m\u00e1y ch\u1ee7 v\u1eadt l\u00fd. V\u1edbi t\u00ednh n\u0103ng Snapshot v\u00e0 Clone m\u1ea1nh m\u1ebd, \u0111\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u cho c\u00e1c n\u1ec1n t\u1ea3ng \u1ea3o h\u00f3a nh\u01b0 OpenStack ho\u1eb7c Proxmox. T\u1ea1i InterData, ch\u00fang t\u00f4i nh\u1eadn th\u1ea5y c\u00e1c k\u1ef9 s\u01b0 DevOps \u0111\u1eb7c bi\u1ec7t \u01b0a chu\u1ed9ng RBD v\u00ec kh\u1ea3 n\u0103ng t\u00edch h\u1ee3p s\u00e2u v\u00e0 hi\u1ec7u n\u0103ng \u1ed5n \u0111\u1ecbnh cho c\u00e1c h\u1ec7 qu\u1ea3n tr\u1ecb c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ceph-Object-Storage-RGW\"><\/span><strong>Ceph Object Storage (RGW)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Th\u00f4ng qua Rados Gateway (RGW), h\u1ec7 th\u1ed1ng cung c\u1ea5p giao di\u1ec7n l\u01b0u tr\u1eef \u0111\u1ed1i t\u01b0\u1ee3ng t\u01b0\u01a1ng th\u00edch ho\u00e0n to\u00e0n v\u1edbi Amazon S3 API v\u00e0 OpenStack Swift. \u0110\u00e2y l\u00e0 gi\u1ea3i ph\u00e1p l\u00fd t\u01b0\u1edfng \u0111\u1ec3 l\u01b0u tr\u1eef c\u00e1c d\u1eef li\u1ec7u kh\u00f4ng c\u1ea5u tr\u00fac nh\u01b0 h\u00ecnh \u1ea3nh, video, b\u1ea3n sao l\u01b0u (Backup) v\u00e0 d\u1eef li\u1ec7u \u1ee9ng d\u1ee5ng web v\u1edbi kh\u1ea3 n\u0103ng truy c\u1eadp qua giao th\u1ee9c HTTP\/HTTPS.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ceph-File-System-CephFS\"><\/span><strong>Ceph File System (CephFS)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>CephFS cung c\u1ea5p m\u1ed9t h\u1ec7 th\u1ed1ng t\u1ec7p tin d\u00f9ng chung tu\u00e2n th\u1ee7 chu\u1ea9n POSIX. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p nhi\u1ec1u m\u00e1y ch\u1ee7 c\u00f9ng g\u1eafn m\u1ed9t th\u01b0 m\u1ee5c m\u1ea1ng v\u00e0 l\u00e0m vi\u1ec7c \u0111\u1ed3ng th\u1eddi tr\u00ean c\u00e1c t\u1ec7p tin \u0111\u00f3. Kh\u00e1c v\u1edbi NFS truy\u1ec1n th\u1ed1ng, CephFS c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng b\u0103ng th\u00f4ng v\u00e0 dung l\u01b0\u1ee3ng b\u1eb1ng c\u00e1ch th\u00eam c\u00e1c node MDS v\u00e0 OSD.<\/p>\n<div class=\"highlight-cta-box\">N\u1ebfu qu\u00fd kh\u00e1ch h\u00e0ng \u0111ang t\u00ecm ki\u1ebfm m\u1ed9t gi\u1ea3i ph\u00e1p l\u01b0u tr\u1eef \u1ed5n \u0111\u1ecbnh \u0111\u1ec3 v\u1eadn h\u00e0nh website ho\u1eb7c \u1ee9ng d\u1ee5ng m\u00e0 kh\u00f4ng mu\u1ed1n \u0111\u1ed1i m\u1eb7t v\u1edbi s\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a vi\u1ec7c t\u1ef1 x\u00e2y d\u1ef1ng h\u1ea1 t\u1ea7ng, c\u00e1c d\u1ecbch v\u1ee5 <strong>VPS<\/strong> ho\u1eb7c <strong>Cloud Server<\/strong> <strong>t\u1ea1i InterData<\/strong> l\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u. Ch\u00fang t\u00f4i cung c\u1ea5p h\u1ea1 t\u1ea7ng m\u00e1y ch\u1ee7 m\u1ea1nh m\u1ebd, \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a s\u1eb5n l\u1edbp l\u01b0u tr\u1eef, gi\u00fap qu\u00fd kh\u00e1ch t\u1eadp trung ho\u00e0n to\u00e0n v\u00e0o vi\u1ec7c ph\u00e1t tri\u1ec3n kinh doanh thay v\u00ec lo l\u1eafng v\u1ec1 k\u1ef9 thu\u1eadt h\u1ea1 t\u1ea7ng b\u00ean d\u01b0\u1edbi.<br \/>\n<a href=\"https:\/\/interdata.vn\/thue-vps\/\/\" class=\"button primary is-primary is-medium\"  >\n\t\t<span>THAM KH\u1ea2O B\u1ea2NG GI\u00c1 VPS<\/span>\n\t<\/a>\n <a href=\"https:\/\/interdata.vn\/cloud-server\/\" class=\"button primary is-primary is-medium\"  >\n\t\t<span>THAM KH\u1ea2O B\u1ea2NG GI\u00c1 CLOUD SERVER<\/span>\n\t<\/a>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Uu-va-nhuoc-diem-cua-Ceph\"><\/span><strong>\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a Ceph<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>B\u1ea5t k\u1ef3 gi\u1ea3i ph\u00e1p c\u00f4ng ngh\u1ec7 n\u00e0o c\u0169ng c\u00f3 hai m\u1eb7t. Vi\u1ec7c \u0111\u00e1nh gi\u00e1 Ceph kh\u00e1ch quan gi\u00fap doanh nghi\u1ec7p \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh \u0111\u00fang \u0111\u1eafn.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Uu-diem\"><\/span><strong>\u01afu \u0111i\u1ec3m<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Scale linh ho\u1ea1t:<\/strong> Kh\u1ea3 n\u0103ng t\u0103ng tr\u01b0\u1edfng t\u1eeb v\u00e0i Terabyte l\u00ean h\u00e0ng Petabyte m\u00e0 kh\u00f4ng c\u1ea7n thay \u0111\u1ed5i ki\u1ebfn tr\u00fac.<\/li>\n<li><strong>Kh\u00f4ng lock-in vendor:<\/strong> Ho\u1ea1t \u0111\u1ed9ng tr\u00ean m\u1ecdi thi\u1ebft b\u1ecb ph\u1ea7n c\u1ee9ng x86 ph\u1ed5 bi\u1ebfn, gi\u00fap doanh nghi\u1ec7p l\u00e0m ch\u1ee7 h\u1ea1 t\u1ea7ng.<\/li>\n<li><strong>High availability:<\/strong> Kh\u1ea3 n\u0103ng t\u1ef1 ch\u1eefa l\u00e0nh (Self-healing) \u01b0u vi\u1ec7t, gi\u1ea3m thi\u1ec3u r\u1ee7i ro m\u1ea5t m\u00e1t d\u1eef li\u1ec7u do h\u1ecfng h\u00f3c ph\u1ea7n c\u1ee9ng.<\/li>\n<li><strong>Ti\u1ebft ki\u1ec7m chi ph\u00ed<\/strong>: Mi\u1ec5n ph\u00ed, ph\u1ea7n m\u1ec1m \u0111\u1ecbnh ngh\u0129a l\u01b0u tr\u1eef (SDS), h\u1ed7 tr\u1ee3 \u0111a giao th\u1ee9c (S3, Swift, POSIX).<\/li>\n<li><strong>\u0110\u1ed9 tin c\u1eady cao<\/strong>: Kh\u00f4ng single point of failure, t\u1ef1 \u0111\u1ed9ng replicate\/m\u00e3 h\u00f3a d\u1eef li\u1ec7u (CRUSH algorithm), ch\u1ecbu l\u1ed7i t\u1ed1t h\u01a1n RAID.<\/li>\n<\/ul>\n<h3><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-39305\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Uu-va-nhuoc-diem-cua-Ceph.jpg\" alt=\"\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a Ceph\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Uu-va-nhuoc-diem-cua-Ceph.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Uu-va-nhuoc-diem-cua-Ceph-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Uu-va-nhuoc-diem-cua-Ceph-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Nhuoc-diem\"><\/span><strong>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Tri\u1ec3n khai ph\u1ee9c t\u1ea1p:<\/strong> Vi\u1ec7c thi\u1ebft l\u1eadp m\u1ed9t c\u1ee5m l\u01b0u tr\u1eef chu\u1ea9n x\u00e1c y\u00eau c\u1ea7u ng\u01b0\u1eddi th\u1ef1c hi\u1ec7n c\u00f3 ki\u1ebfn th\u1ee9c s\u00e2u v\u1ec1 m\u1ea1ng (Networking) v\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh Linux.<\/li>\n<li><strong>Hi\u1ec7u su\u1ea5t ban \u0111\u1ea7u th\u1ea5p<\/strong>: V\u1edbi workload nh\u1ecf\/random I\/O, ch\u1eadm h\u01a1n SAN\/NAS truy\u1ec1n th\u1ed1ng; c\u1ea7n tuning l\u1edbn.<\/li>\n<li><strong>Y\u00eau c\u1ea7u ki\u1ebfn th\u1ee9c v\u1eadn h\u00e0nh:<\/strong> \u0110\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ea7n th\u1eddi gian \u0111\u1ec3 l\u00e0m quen v\u1edbi c\u00e1c l\u1ec7nh qu\u1ea3n tr\u1ecb v\u00e0 quy tr\u00ecnh x\u1eed l\u00fd s\u1ef1 c\u1ed1 \u0111\u1eb7c th\u00f9.<\/li>\n<li><strong>C\u1ea7n ph\u1ea7n c\u1ee9ng ph\u00f9 h\u1ee3p:<\/strong> D\u00f9 ch\u1ea1y tr\u00ean ph\u1ea7n c\u1ee9ng ph\u1ed5 th\u00f4ng, nh\u01b0ng \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u n\u0103ng t\u1ed1i \u01b0u, h\u1ec7 th\u1ed1ng y\u00eau c\u1ea7u m\u1ea1ng b\u0103ng th\u00f4ng l\u1edbn (t\u1ed1i thi\u1ec3u 10Gbps) v\u00e0 c\u00e1c \u1ed5 c\u1ee9ng SSD\/NVMe cho c\u00e1c l\u1edbp \u0111\u1ec7m (Cache\/Journal).<\/li>\n<li><strong>H\u1ed7 tr\u1ee3 h\u1ea1n ch\u1ebf<\/strong>: Community-driven, kh\u00f4ng enterprise support ch\u00ednh th\u1ee9c nh\u01b0 NetApp; c\u1eadp nh\u1eadt c\u00f3 th\u1ec3 ph\u00e1 cluster.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"So-sanh-Ceph-voi-SANNAS-truyen-thong-va-GlusterFS\"><\/span><strong>So s\u00e1nh Ceph v\u1edbi SAN\/NAS truy\u1ec1n th\u1ed1ng v\u00e0 GlusterFS<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng so s\u00e1nh n\u1ec1n t\u1ea3ng Ceph Storage v\u1edbi SAN\/NAS truy\u1ec1n th\u1ed1ng v\u00e0 GlusterFS gi\u00fap qu\u00fd \u0111\u1ed9c gi\u1ea3 c\u00f3 c\u00e1i nh\u00ecn t\u1ed5ng quan:<\/p>\n<table style=\"width: 100%; border-collapse: collapse; font-family: Arial, Helvetica, sans-serif; font-size: 15px;\">\n<thead>\n<tr>\n<th style=\"padding: 12px; color: #ffffff; background: linear-gradient(135deg,#0C40F4,#077FFA); border: 1px solid #e5e7eb;\">Ti\u00eau ch\u00ed<\/th>\n<th style=\"padding: 12px; color: #ffffff; background: linear-gradient(135deg,#077FFA,#0497FC); border: 1px solid #e5e7eb;\">Ceph Storage<\/th>\n<th style=\"padding: 12px; color: #ffffff; background: linear-gradient(135deg,#0C40F4,#077FFA); border: 1px solid #e5e7eb;\">SAN\/NAS truy\u1ec1n th\u1ed1ng<\/th>\n<th style=\"padding: 12px; color: #ffffff; background: linear-gradient(135deg,#077FFA,#0497FC); border: 1px solid #e5e7eb;\">GlusterFS<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background-color: #f8fafc;\">\n<td style=\"padding: 10px; font-weight: 600; border: 1px solid #e5e7eb;\">Ki\u1ebfn tr\u00fac<\/td>\n<td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Ph\u00e2n t\u00e1n, \u0111\u1ed1i t\u01b0\u1ee3ng<\/td>\n<td style=\"padding: 10px; border: 1px solid #e5e7eb;\">T\u1eadp trung, ph\u1ea7n c\u1ee9ng<\/td>\n<td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Ph\u00e2n t\u00e1n, d\u1ef1a tr\u00ean File<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; font-weight: 600; border: 1px solid #e5e7eb;\">M\u1edf r\u1ed9ng<\/td>\n<td style=\"padding: 10px; border: 1px solid #e5e7eb;\">R\u1ea5t cao (Scale-out)<\/td>\n<td style=\"padding: 10px; border: 1px solid #e5e7eb;\">H\u1ea1n ch\u1ebf (Scale-up)<\/td>\n<td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Cao<\/td>\n<\/tr>\n<tr style=\"background-color: #f8fafc;\">\n<td style=\"padding: 10px; font-weight: 600; border: 1px solid #e5e7eb;\">Chi ph\u00ed<\/td>\n<td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Th\u1ea5p (M\u00e3 ngu\u1ed3n m\u1edf)<\/td>\n<td style=\"padding: 10px; border: 1px solid #e5e7eb;\">R\u1ea5t cao (B\u1ea3n quy\u1ec1n)<\/td>\n<td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Th\u1ea5p<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; font-weight: 600; border: 1px solid #e5e7eb;\">H\u1ee3p nh\u1ea5t<\/td>\n<td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Block, Object, File<\/td>\n<td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Th\u01b0\u1eddng ch\u1ec9 Block ho\u1eb7c File<\/td>\n<td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Ch\u1ee7 y\u1ebfu File<\/td>\n<\/tr>\n<tr style=\"background-color: #f8fafc;\">\n<td style=\"padding: 10px; font-weight: 600; border: 1px solid #e5e7eb;\">\u0110\u1ed9 ph\u1ee9c t\u1ea1p<\/td>\n<td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Cao<\/td>\n<td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Trung b\u00ecnh<\/td>\n<td style=\"padding: 10px; border: 1px solid #e5e7eb;\">Trung b\u00ecnh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>So v\u1edbi GlusterFS, n\u1ec1n t\u1ea3ng n\u00e0y v\u01b0\u1ee3t tr\u1ed9i h\u01a1n \u1edf kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef Block v\u00e0 Object, \u0111\u1ed3ng th\u1eddi thu\u1eadt to\u00e1n CRUSH gi\u00fap x\u1eed l\u00fd d\u1eef li\u1ec7u th\u00f4ng minh h\u01a1n trong c\u00e1c c\u1ee5m m\u00e1y ch\u1ee7 l\u1edbn.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ung-dung-thuc-te-cua-Ceph-trong-ha-tang-IT\"><\/span><strong>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a Ceph trong h\u1ea1 t\u1ea7ng IT<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>N\u1ec1n t\u1ea3ng n\u00e0y kh\u00f4ng ch\u1ec9 l\u00e0 l\u00fd thuy\u1ebft m\u00e0 \u0111\u00e3 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c m\u00f4i tr\u01b0\u1eddng s\u1ea3n xu\u1ea5t th\u1ef1c t\u1ebf.<\/p>\n<ul>\n<li><strong>L\u01b0u tr\u1eef cho \u1ea3o h\u00f3a v\u00e0 Cloud:<\/strong> L\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn m\u1eb7c \u0111\u1ecbnh cho OpenStack \u0111\u1ec3 qu\u1ea3n l\u00fd \u0111\u0129a \u1ea3o c\u1ee7a h\u00e0ng ngh\u00ecn m\u00e1y \u1ea3o.<\/li>\n<li><strong>L\u01b0u tr\u1eef cho Container:<\/strong> Th\u00f4ng qua giao di\u1ec7n CSI (Container Storage Interface), h\u1ec7 th\u1ed1ng n\u00e0y cung c\u1ea5p l\u01b0u tr\u1eef b\u1ec1n v\u1eefng (Persistent Volume) cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ea1y tr\u00ean Kubernetes.<\/li>\n<li><strong>H\u1ec7 th\u1ed1ng Backup v\u00e0 L\u01b0u tr\u1eef Big Data:<\/strong> V\u1edbi kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef \u0111\u1ed1i t\u01b0\u1ee3ng dung l\u01b0\u1ee3ng l\u1edbn, \u0111\u00e2y l\u00e0 n\u01a1i l\u01b0u gi\u1eef c\u00e1c b\u1ea3n sao l\u01b0u an to\u00e0n v\u00e0 d\u1eef li\u1ec7u ph\u1ee5c v\u1ee5 ph\u00e2n t\u00edch AI\/ML.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Khi-nao-nen-va-khong-nen-su-dung-Ceph\"><\/span><strong>Khi n\u00e0o n\u00ean (v\u00e0 kh\u00f4ng n\u00ean) s\u1eed d\u1ee5ng Ceph?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>D\u1ef1a tr\u00ean kinh nghi\u1ec7m c\u1ee7a c\u00e1c chuy\u00ean gia, ch\u00fang t\u00f4i \u0111\u01b0a ra khuy\u1ebfn ngh\u1ecb nh\u01b0 sau:<\/p>\n<p><strong>N\u00ean d\u00f9ng khi:<\/strong><\/p>\n<ul>\n<li>Tri\u1ec3n khai Private Cloud ho\u1eb7c m\u00f4i tr\u01b0\u1eddng \u1ea3o h\u00f3a quy m\u00f4 l\u1edbn.<\/li>\n<li>H\u1ea1 t\u1ea7ng y\u00eau c\u1ea7u kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng li\u00ean t\u1ee5c v\u00e0 kh\u00f4ng ch\u1ea5p nh\u1eadn th\u1eddi gian ch\u1ebft (Downtime).<\/li>\n<li>Doanh nghi\u1ec7p s\u1edf h\u1eefu \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u00f3 n\u0103ng l\u1ef1c qu\u1ea3n tr\u1ecb h\u1ec7 th\u1ed1ng Linux t\u1ed1t.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-39302\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Khi-nao-nen-va-khong-nen-su-dung-Ceph.jpg\" alt=\"Khi n\u00e0o n\u00ean (v\u00e0 kh\u00f4ng n\u00ean) s\u1eed d\u1ee5ng Ceph\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Khi-nao-nen-va-khong-nen-su-dung-Ceph.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Khi-nao-nen-va-khong-nen-su-dung-Ceph-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2026\/02\/Khi-nao-nen-va-khong-nen-su-dung-Ceph-768x480.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><strong>Kh\u00f4ng n\u00ean d\u00f9ng khi:<\/strong><\/p>\n<ul>\n<li>H\u1ec7 th\u1ed1ng qu\u00e1 nh\u1ecf (ch\u1ec9 c\u1ea7n 1-2 m\u00e1y ch\u1ee7). Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, c\u00e1c gi\u1ea3i ph\u00e1p l\u01b0u tr\u1eef c\u1ee5c b\u1ed9 ho\u1eb7c RAID truy\u1ec1n th\u1ed1ng s\u1ebd hi\u1ec7u qu\u1ea3 h\u01a1n.<\/li>\n<li>Doanh nghi\u1ec7p kh\u00f4ng c\u00f3 \u0111\u1ed9i ng\u0169 v\u1eadn h\u00e0nh k\u1ef9 thu\u1eadt v\u00e0 c\u1ea7n s\u1ef1 h\u1ed7 tr\u1ee3 24\/7 t\u1eeb c\u00e1c h\u00e3ng ph\u1ea7n c\u1ee9ng t\u00edch h\u1ee3p s\u1eb5n.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cac-cong-ty-su-dung-Ceph\"><\/span>C\u00e1c c\u00f4ng ty s\u1eed d\u1ee5ng Ceph<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Tr\u00ecnh qu\u1ea3n l\u00fd Ceph \u0111\u01b0\u1ee3c nhi\u1ec1u c\u00f4ng ty l\u1edbn v\u00e0 nh\u00e0 cung c\u1ea5p cloud \u00e1p d\u1ee5ng l\u00e0m n\u1ec1n t\u1ea3ng l\u01b0u tr\u1eef ph\u00e2n t\u00e1n, \u0111\u1eb7c bi\u1ec7t trong m\u00f4i tr\u01b0\u1eddng open-source v\u00e0 cloud-native.<\/p>\n<ul>\n<li><strong>CERN<\/strong>:\u00a0T\u1ed5 ch\u1ee9c Nghi\u00ean c\u1ee9u H\u1ea1t nh\u00e2n ch\u00e2u \u00c2u.<\/li>\n<li><strong>Deutsche Telekom<\/strong>:\u00a0C\u00f4ng ty vi\u1ec5n th\u00f4ng l\u1edbn c\u1ee7a \u0110\u1ee9c.<\/li>\n<li><strong>Bloomberg<\/strong>:\u00a0C\u00f4ng ty truy\u1ec1n th\u00f4ng, d\u1eef li\u1ec7u t\u00e0i ch\u00ednh v\u00e0 ph\u1ea7n m\u1ec1m.<\/li>\n<li><strong>Cisco<\/strong>:\u00a0C\u00f4ng ty c\u00f4ng ngh\u1ec7 m\u1ea1ng.<\/li>\n<li><strong>DreamHost<\/strong>:\u00a0Nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef web v\u00e0 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n.<\/li>\n<li><strong>DigitalOcean<\/strong>:\u00a0Nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u00e1m m\u00e2y cho nh\u00e0 ph\u00e1t tri\u1ec3n.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cac-cau-hoi-thuong-gap-ve-Ceph-FAQs\"><\/span><strong>C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 Ceph (FAQs)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"1-Ceph-co-mien-phi-hoan-toan-khong\"><\/span><strong>1. Ceph c\u00f3 mi\u1ec5n ph\u00ed ho\u00e0n to\u00e0n kh\u00f4ng?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 ph\u1ea7n m\u1ec1m m\u00e3 ngu\u1ed3n m\u1edf \u0111\u01b0\u1ee3c ph\u00e1t h\u00e0nh d\u01b0\u1edbi gi\u1ea5y ph\u00e9p LGPL. Doanh nghi\u1ec7p c\u00f3 th\u1ec3 t\u1ea3i v\u1ec1, c\u00e0i \u0111\u1eb7t v\u00e0 s\u1eed d\u1ee5ng mi\u1ec5n ph\u00ed cho c\u00e1c m\u1ee5c \u0111\u00edch th\u01b0\u01a1ng m\u1ea1i m\u00e0 kh\u00f4ng ph\u1ea3i tr\u1ea3 ph\u00ed b\u1ea3n quy\u1ec1n. Tuy nhi\u00ean, chi ph\u00ed s\u1ebd n\u1eb1m \u1edf ph\u1ea7n c\u1ee9ng v\u00e0 nh\u00e2n s\u1ef1 v\u1eadn h\u00e0nh.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2-Can-toi-thieu-bao-nhieu-Node-de-dung-mot-Ceph-Cluster-on-dinh\"><\/span><strong>2. C\u1ea7n t\u1ed1i thi\u1ec3u bao nhi\u00eau Node \u0111\u1ec3 d\u1ef1ng m\u1ed9t Ceph Cluster \u1ed5n \u0111\u1ecbnh?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1eb7c d\u00f9 c\u00f3 th\u1ec3 c\u00e0i \u0111\u1eb7t tr\u00ean 1 node \u0111\u1ec3 th\u1eed nghi\u1ec7m, nh\u01b0ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh s\u1eb5n s\u00e0ng v\u00e0 \u0111\u00fang chu\u1ea9n k\u1ef9 thu\u1eadt, ch\u00fang t\u00f4i khuy\u1ebfn ngh\u1ecb t\u1ed1i thi\u1ec3u 3 node m\u00e1y ch\u1ee7. \u0110i\u1ec1u n\u00e0y gi\u00fap h\u1ec7 th\u1ed1ng th\u1ef1c hi\u1ec7n \u0111\u00fang c\u01a1 ch\u1ebf nh\u00e2n b\u1ea3n (Replication factor = 3).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3-Ceph-co-yeu-cau-phan-cung-dac-biet-khong\"><\/span><strong>3. Ceph c\u00f3 y\u00eau c\u1ea7u ph\u1ea7n c\u1ee9ng \u0111\u1eb7c bi\u1ec7t kh\u00f4ng?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ec1n t\u1ea3ng n\u00e0y kh\u00f4ng y\u00eau c\u1ea7u ph\u1ea7n c\u1ee9ng chuy\u00ean d\u1ee5ng t\u1eeb c\u00e1c h\u00e3ng l\u1edbn, nh\u01b0ng \u0111\u00f2i h\u1ecfi c\u1ea5u h\u00ecnh m\u1ea1ng \u0111\u1ed3ng b\u1ed9 (n\u00ean d\u00f9ng m\u1ea1ng 10Gbps ho\u1eb7c cao h\u01a1n) \u0111\u1ec3 ph\u1ee5c v\u1ee5 vi\u1ec7c \u0111\u1ed3ng b\u1ed9 d\u1eef li\u1ec7u gi\u1eefa c\u00e1c node. Vi\u1ec7c s\u1eed d\u1ee5ng \u1ed5 c\u1ee9ng SSD cho c\u00e1c ph\u00e2n v\u00f9ng log\/DB c\u1ee7a OSD s\u1ebd c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 t\u1ed1c \u0111\u1ed9 ghi.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4-Ceph-va-RAID-co-giong-nhau-khong\"><\/span><strong>4. Ceph v\u00e0 RAID c\u00f3 gi\u1ed1ng nhau kh\u00f4ng?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>RAID l\u00e0 c\u00f4ng ngh\u1ec7 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u \u1edf m\u1ee9c \u0111\u1ed9 \u1ed5 \u0111\u0129a trong m\u1ed9t m\u00e1y ch\u1ee7 \u0111\u01a1n l\u1ebb. Ng\u01b0\u1ee3c l\u1ea1i, gi\u1ea3i ph\u00e1p n\u00e0y b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u \u1edf m\u1ee9c \u0111\u1ed9 node v\u00e0 cluster. N\u00f3 c\u00f3 th\u1ec3 coi l\u00e0 m\u1ed9t d\u1ea1ng &#8220;RAID m\u1ea1ng&#8221; th\u00f4ng minh h\u01a1n, gi\u00fap b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u ngay c\u1ea3 khi to\u00e0n b\u1ed9 m\u1ed9t m\u00e1y ch\u1ee7 v\u1eadt l\u00fd g\u1eb7p s\u1ef1 c\u1ed1.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5-Khi-nao-khong-nen-su-dung-Ceph\"><\/span><strong>5. Khi n\u00e0o kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng Ceph?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Nh\u01b0 \u0111\u00e3 ph\u00e2n t\u00edch, n\u1ebfu \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n y\u00eau c\u1ea7u \u0111\u1ed9 tr\u1ec5 (latency) c\u1ef1c th\u1ea5p c\u1ea5p \u0111\u1ed9 micro gi\u00e2y ho\u1eb7c quy m\u00f4 l\u01b0u tr\u1eef ch\u1ec9 d\u1eebng l\u1ea1i \u1edf m\u1ee9c v\u00e0i Terabyte, vi\u1ec7c tri\u1ec3n khai m\u1ed9t h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p nh\u01b0 v\u1eady c\u00f3 th\u1ec3 g\u00e2y l\u00e3ng ph\u00ed t\u00e0i nguy\u00ean v\u00e0 l\u00e0m t\u0103ng \u0111\u1ed9 ph\u1ee9c t\u1ea1p kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n<p>T\u1ed5ng k\u1ebft l\u1ea1i, gi\u1ea3i ph\u00e1p m\u00e3 ngu\u1ed3n m\u1edf Ceph l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p l\u01b0u tr\u1eef ph\u00e2n t\u00e1n \u0111\u1ed9t ph\u00e1, mang l\u1ea1i s\u1ef1 linh ho\u1ea1t v\u00e0 kh\u1ea3 n\u0103ng ti\u1ebft ki\u1ec7m chi ph\u00ed t\u1ed1i \u01b0u cho doanh nghi\u1ec7p trong k\u1ef7 nguy\u00ean s\u1ed1. Vi\u1ec7c hi\u1ec3u r\u00f5 ki\u1ebfn tr\u00fac v\u00e0 c\u01a1 ch\u1ebf v\u1eadn h\u00e0nh c\u1ee7a n\u1ec1n t\u1ea3ng n\u00e0y s\u1ebd gi\u00fap c\u00e1c t\u1ed5 ch\u1ee9c x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c m\u1ed9t h\u1ea1 t\u1ea7ng d\u1eef li\u1ec7u b\u1ec1n v\u1eefng, s\u1eb5n s\u00e0ng cho nh\u1eefng b\u01b0\u1edbc t\u0103ng tr\u01b0\u1edfng trong t\u01b0\u01a1ng lai.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u00f3m t\u1eaft n\u1ed9i dung: Ceph l\u00e0 n\u1ec1n t\u1ea3ng l\u01b0u tr\u1eef ph\u00e2n t\u00e1n m\u00e3 ngu\u1ed3n m\u1edf (Software-Defined Storage) cho ph\u00e9p h\u1ee3p nh\u1ea5t l\u01b0u tr\u1eef Block, Object v\u00e0 File tr\u00ean m\u1ed9t c\u1ee5m m\u00e1y ch\u1ee7 duy nh\u1ea5t. Gi\u1ea3i ph\u00e1p n\u00e0y gi\u00fap doanh nghi\u1ec7p lo\u1ea1i b\u1ecf s\u1ef1 ph\u1ee5 thu\u1ed9c v\u00e0o ph\u1ea7n c\u1ee9ng \u0111\u1eaft ti\u1ec1n, t\u1ed1i \u01b0u chi ph\u00ed v\u1eadn<\/p>\n","protected":false},"author":11,"featured_media":39306,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[],"class_list":["post-39282","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-cu-phan-mem"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/39282","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/comments?post=39282"}],"version-history":[{"count":12,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/39282\/revisions"}],"predecessor-version":[{"id":39362,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/39282\/revisions\/39362"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/39306"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=39282"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=39282"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=39282"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}