{"id":2028,"date":"2019-01-17T03:48:18","date_gmt":"2019-01-17T03:48:18","guid":{"rendered":"https:\/\/www.hostnic.id\/blog\/?p=2028"},"modified":"2019-01-17T03:48:18","modified_gmt":"2019-01-17T03:48:18","slug":"cara-setup-drbd-dan-membuat-replika-storage-dua-server-centos-7","status":"publish","type":"post","link":"https:\/\/www.hostnic.id\/blog\/tutorial\/linux\/cara-setup-drbd-dan-membuat-replika-storage-dua-server-centos-7\/","title":{"rendered":"Cara Setup DRBD dan membuat Replika Storage Dua Server CentOS 7"},"content":{"rendered":"<p>DRBD (kependekan dari Distributed Replicated Block Device) adalah solusi penyimpanan yang direplikasi, fleksibel dan serbaguna untuk Linux. Ini mencerminkan konten perangkat blok seperti hard disk, partisi, volume logis, dll. Antara server. Ini melibatkan salinan data pada dua perangkat penyimpanan, sehingga jika salah satu gagal, data di sisi lain dapat digunakan.<\/p>\n<p>Anda dapat menganggapnya agak seperti konfigurasi RAID 1 jaringan dengan disk yang dipantulkan ke seluruh server. Namun, ini beroperasi dengan cara yang sangat berbeda dari RAID dan bahkan Network RAID.<\/p>\n<p>Awalnya, DRBD digunakan dalam cluster komputer\u00a0high availability (HA), namun, mulai dari versi 9, dapat digunakan untuk menggunakan solusi penyimpanan cloud.<\/p>\n<p>Pada artikel ini, kami akan menunjukkan cara menginstal DRBD di CentOS dan secara singkat cara menggunakannya untuk mereplikasi penyimpanan (partisi) pada dua server. Ini adalah artikel yang sempurna untuk memulai menggunakan DRBD di Linux.<\/p>\n<p><strong>Lingkungan Pengujian<\/strong><\/p>\n<p>Pada artikel ini, kami menggunakan dua node cluster.<\/p>\n<ul>\n<li><strong>Node1<\/strong>: 192.168.56.101 \u2013 tecmint.hostnic.id<\/li>\n<li><strong>Node2<\/strong>: 192.168.10.102 \u2013 server1.hostnic.id<\/li>\n<\/ul>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_75 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Daftar Isi<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a06e9aeac999\" class=\"ez-toc-cssicon-toggle-label\"><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><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a06e9aeac999\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.hostnic.id\/blog\/tutorial\/linux\/cara-setup-drbd-dan-membuat-replika-storage-dua-server-centos-7\/#Step_1_Installing_DRBD_Packages\" >Step 1: Installing DRBD Packages<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.hostnic.id\/blog\/tutorial\/linux\/cara-setup-drbd-dan-membuat-replika-storage-dua-server-centos-7\/#Step_2_Preparing_Lower-level_Storage\" >Step 2: Preparing Lower-level Storage<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.hostnic.id\/blog\/tutorial\/linux\/cara-setup-drbd-dan-membuat-replika-storage-dua-server-centos-7\/#Step_3_Configuring_DRBD\" >Step 3: Configuring DRBD<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.hostnic.id\/blog\/tutorial\/linux\/cara-setup-drbd-dan-membuat-replika-storage-dua-server-centos-7\/#Step_4_Adding_a_Resource\" >Step 4: Adding a Resource<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.hostnic.id\/blog\/tutorial\/linux\/cara-setup-drbd-dan-membuat-replika-storage-dua-server-centos-7\/#Step_4_Initializing_and_Enabling_Resource\" >Step 4: Initializing and Enabling Resource<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.hostnic.id\/blog\/tutorial\/linux\/cara-setup-drbd-dan-membuat-replika-storage-dua-server-centos-7\/#Step_5_Set_Primary_ResourceSource_of_Initial_Device_Synchronization\" >Step 5: Set Primary Resource\/Source of Initial Device Synchronization<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.hostnic.id\/blog\/tutorial\/linux\/cara-setup-drbd-dan-membuat-replika-storage-dua-server-centos-7\/#Step_6_Testing_DRBD_Setup\" >Step 6: Testing DRBD Setup<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Step_1_Installing_DRBD_Packages\"><\/span>Step 1: Installing DRBD Packages<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>DRBD diimplementasikan sebagai modul kernel Linux. Ini justru merupakan driver untuk perangkat blok virtual, jadi didirikan tepat di dekat bagian bawah tumpukan I \/ O sistem.<\/p>\n<p>DRBD dapat diinstal dari repositori ELRepo atau EPEL. Mari kita mulai dengan mengimpor kunci penandatanganan paket ELRepo, dan aktifkan repositori seperti yang ditunjukkan pada kedua node.<\/p>\n<pre class=\"lang:default decode:true\"># rpm --import https:\/\/www.elrepo.org\/RPM-GPG-KEY-elrepo.org\r\n# rpm -Uvh http:\/\/www.elrepo.org\/elrepo-release-7.0-3.el7.elrepo.noarch.rpm\r\n<\/pre>\n<p>Kemudian kita dapat menginstal modul dan utilitas kernel DRBD di kedua node dengan menjalankan:<\/p>\n<pre># yum install -y kmod-drbd84 drbd84-utils\r\n<\/pre>\n<p>Jika Anda mengaktifkan SELinux, Anda perlu memodifikasi kebijakan untuk mengecualikan proses DRBD dari kontrol SELinux.<\/p>\n<pre># semanage permissive -a drbd_t\r\n<\/pre>\n<p>Selain itu, jika sistem Anda memiliki firewall yang aktif (firewalld), Anda perlu menambahkan port DRBD 7789 di firewall untuk memungkinkan sinkronisasi data antara dua node.<\/p>\n<p>Jalankan perintah ini pada server pertama:<\/p>\n<pre class=\"\"># firewall-cmd --permanent --add-rich-rule='rule family=\"ipv4\"  source address=\"192.168.56.102\" port port=\"7789\" protocol=\"tcp\" accept'\r\n# firewall-cmd --reload\r\n<\/pre>\n<p>Kemudian jalankan perintah ini di server kedua:<\/p>\n<pre># firewall-cmd --permanent --add-rich-rule='rule family=\"ipv4\" source address=\"192.168.56.101\" port port=\"7789\" protocol=\"tcp\" accept'\r\n# firewall-cmd --reload\r\n<\/pre>\n<h3><span class=\"ez-toc-section\" id=\"Step_2_Preparing_Lower-level_Storage\"><\/span>Step 2: Preparing Lower-level Storage<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"tlid-input input\">\n<div class=\"source-wrap\">\n<div class=\"input-full-height-wrapper tlid-input-full-height-wrapper\">\n<div class=\"source-input\">\n<div class=\"source-footer-wrap source-or-target-footer\">\n<div class=\"character-count tlid-character-count\"><\/div>\n<div class=\"source-footer\">\n<div class=\"speech-wrap source-or-target-footer-button left-positioned\">\n<div id=\"gt-speech\" class=\"speech-button goog-toolbar-button\" tabindex=\"0\" role=\"button\" aria-label=\"Aktifkan masukan suara\" data-tooltip-align=\"t,c\" aria-pressed=\"false\" aria-disabled=\"false\" data-tooltip=\"Aktifkan masukan suara\"><span class=\"\" title=\"\">Sekarang kita telah menginstal DRBD pada dua node cluster, lalu kita harus menyiapkan area penyimpanan berukuran sama pada kedua node.<\/span> <span class=\"\" title=\"\">Ini bisa berupa partisi hard drive (atau hard drive fisik lengkap), perangkat RAID perangkat lunak, LVM Logical Volume atau tipe perangkat blok lain apa pun yang ditemukan di sistem Anda.<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"tlid-results-container results-container\">\n<div class=\"tlid-result result-dict-wrapper\">\n<div class=\"result tlid-copy-target\">\n<div class=\"text-wrap tlid-copy-target\">\n<div class=\"result-shield-container tlid-copy-target\"><span class=\"tlid-translation translation\"><br \/>\n<span class=\"\" title=\"\">Untuk tujuan artikel ini, kami akan membuat perangkat blok dummy ukuran 2GB menggunakan perintah dd.<\/span><\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<pre class=\"\"># dd if=\/dev\/zero of=\/dev\/sdb1 bs=2024k count=1024\r\n<\/pre>\n<p>Kami akan menganggap bahwa ini adalah partisi yang tidak digunakan (\/dev\/sdb1) pada perangkat blok kedua (\/dev\/sdb) yang terpasang pada kedua node.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Step_3_Configuring_DRBD\"><\/span>Step 3: Configuring DRBD<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>File konfigurasi utama DRBD terletak di <strong>\/etc\/drbd.conf<\/strong> dan file konfigurasi tambahan dapat ditemukan di direktori <strong>\/etc\/drbd.d<\/strong>.<\/p>\n<p>Untuk mereplikasi penyimpanan, kita perlu menambahkan konfigurasi yang diperlukan dalam file <strong>\/etc\/drbd.d\/global_common.conf<\/strong> yang berisi bagian global dan umum dari konfigurasi DRBD dan kita dapat menentukan sumber daya dalam file <strong>.res<\/strong>.<\/p>\n<p>Mari buat cadangan file asli di kedua node, lalu buka file baru untuk diedit (gunakan editor teks sesuai keinginan Anda).<\/p>\n<pre class=\"\"># mv \/etc\/drbd.d\/global_common.conf \/etc\/drbd.d\/global_common.conf.orig\r\n# vim \/etc\/drbd.d\/global_common.conf \r\n<\/pre>\n<p>Tambahkan baris berikut di dalam kedua file:<\/p>\n<pre>global {\r\n usage-count  yes;\r\n}\r\ncommon {\r\n net {\r\n  protocol C;\r\n }\r\n}\r\n<\/pre>\n<p>Simpan file, lalu tutup editor.<\/p>\n<p>Mari kita beri sedikit penjelasan pada protocol C. DRBD mendukung tiga mode replikasi yang berbeda yaitu:<\/p>\n<ul>\n<li><strong>protocol A<\/strong>: Protokol replikasi asinkron; ini paling sering digunakan dalam skenario replikasi jarak jauh.<\/li>\n<li><strong>protocol B<\/strong>: Protokol replikasi semi-sinkron alias Protokol sinkron memori.<\/li>\n<li><strong>protocol C<\/strong>: umumnya digunakan untuk node dalam jaringan jarak pendek; sejauh ini, protokol replikasi yang paling umum digunakan dalam pengaturan DRBD.<\/li>\n<\/ul>\n<p><strong>Penting<\/strong>: Pilihan protokol replikasi memengaruhi dua faktor penyebaran Data, perlindungan dan latensi. Dan throughput, sebaliknya, sebagian besar independen dari protokol replikasi yang dipilih.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Step_4_Adding_a_Resource\"><\/span>Step 4: Adding a Resource<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sumber daya adalah istilah yang mengacu pada semua aspek dari set data yang direplikasi. Kami akan mendefinisikan sumber daya kami dalam file bernama <strong>\/etc\/drbd.d\/test.res<\/strong>.<\/p>\n<p>Tambahkan konten berikut ke file, pada kedua node (ingat untuk mengganti variabel dalam konten dengan nilai aktual untuk server Anda).<\/p>\n<p>Perhatikan nama host, kita perlu menentukan nama hostname yang dapat diperoleh dengan menjalankan perintah <strong>uname -n<\/strong>.<\/p>\n<pre class=\"\">resource test {\r\n        on tecmint.hostnic.id {\r\n \t\tdevice \/dev\/drbd0;\r\n       \t\tdisk \/dev\/sdb1;\r\n        \tmeta-disk internal;\t\r\n                address 192.168.56.101:7789;\r\n        }\r\n        on server1.hostnic.id {\r\n\t\tdevice \/dev\/drbd0;\r\n        \tdisk \/dev\/sdb1;\r\n        \tmeta-disk internal;\r\n                address 192.168.56.102:7789;\r\n        }\r\n}\r\n}\r\n<\/pre>\n<p>Dimana:<\/p>\n<ul>\n<li><strong>on hostname<\/strong>: the on section states which host the enclosed configuration statements apply to.<\/li>\n<li><strong>test<\/strong>: is the name of the new resource.<\/li>\n<li><strong>device \/dev\/drbd0<\/strong>: specifies the new virtual block device managed by DRBD.<\/li>\n<li><strong>disk \/dev\/sdb1<\/strong>: is the block device partition which is the backing device for the DRBD device.<\/li>\n<li><strong>meta-disk<\/strong>: Defines where DRBD stores its metadata. Using Internal means that DRBD stores its meta data on the same physical lower-level device as the actual production data.<\/li>\n<li><strong>address<\/strong>: specifies the IP address and port number of the respective node.<\/li>\n<\/ul>\n<p>Perhatikan juga bahwa jika opsi memiliki nilai yang sama pada kedua host, Anda dapat menentukannya secara langsung di bagian sumber daya.<\/p>\n<p>Misalnya konfigurasi di atas dapat direstrukturisasi menjadi:<\/p>\n<pre class=\"\">resource test {\r\n\tdevice \/dev\/drbd0;\r\n\tdisk \/dev\/sdb1;\r\n        \tmeta-disk internal;\t\r\n        \ton tecmint.hostnic.id {\r\n \t\taddress 192.168.56.101:7789;\r\n        \t}\r\n        \ton server1.hostnic.id  {\r\n\t\taddress 192.168.56.102:7789;\r\n        \t}\r\n}\r\n<\/pre>\n<h3><span class=\"ez-toc-section\" id=\"Step_4_Initializing_and_Enabling_Resource\"><\/span>Step 4: Initializing and Enabling Resource<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Untuk berinteraksi dengan DRBD, kami akan menggunakan alat administrasi berikut yang berkomunikasi dengan modul kernel untuk mengkonfigurasi dan mengelola sumber daya DRBD:<\/p>\n<ul>\n<li><strong>drbdadm<\/strong>: a high-level administration tool of the DRBD.<\/li>\n<li><strong>drbdsetup<\/strong>: a lower-level administration tool for to attach DRBD devices with their backing block devices, to set up DRBD device pairs to mirror their backing block devices, and to inspect the configuration of running DRBD devices.<\/li>\n<li><strong>Drbdmeta<\/strong>:is the meta data management tool.<\/li>\n<\/ul>\n<p>Setelah menambahkan semua konfigurasi sumber daya awal, kita harus membuka sumber daya pada kedua node.<\/p>\n<pre># drbdadm create-md test\r\n<\/pre>\n<div id=\"attachment_31535\" class=\"wp-caption aligncenter\" style=\"width: 584px;\">\n<p><a href=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/initialize-meta-data-storage-.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31535\" style=\"display: inline;\" src=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/initialize-meta-data-storage-.png?resize=574%2C291&#038;ssl=1\" alt=\"Initialize Meta Data Storage\" width=\"574\" height=\"291\" data-lazy-loaded=\"true\" \/><noscript><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31535\" src=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/initialize-meta-data-storage-.png?resize=574%2C291&#038;ssl=1\" alt=\"Initialize Meta Data Storage\" width=\"574\" height=\"291\" \/><\/noscript><\/a><\/p>\n<p class=\"wp-caption-text\">Initialize Meta Data Storage<\/p>\n<\/div>\n<p>Selanjutnya, kita harus mengaktifkan sumber daya, yang akan melampirkan sumber daya dengan perangkat pendukungnya, lalu menetapkan parameter replikasi, dan menghubungkan sumber daya ke rekannya:<\/p>\n<pre># drbdadm up test\r\n<\/pre>\n<p>Sekarang jika Anda menjalankan perintah <strong>lsblk<\/strong>, Anda akan melihat bahwa perangkat DRBD \/ volume drbd0 dikaitkan dengan perangkat pendukung \/dev\/sdb1:<\/p>\n<pre># lsblk\r\n<\/pre>\n<div id=\"attachment_31536\" class=\"wp-caption aligncenter\" style=\"width: 662px;\">\n<p><a href=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/list-block-devices.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31536\" style=\"display: inline;\" src=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/list-block-devices.png?resize=652%2C230&#038;ssl=1\" alt=\"List Block Devices\" width=\"652\" height=\"230\" data-lazy-loaded=\"true\" \/><noscript><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31536\" src=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/list-block-devices.png?resize=652%2C230&#038;ssl=1\" alt=\"List Block Devices\" width=\"652\" height=\"230\" \/><\/noscript><\/a><\/p>\n<p class=\"wp-caption-text\">List Block Devices<\/p>\n<\/div>\n<p>Untuk menonaktifkan sumber daya, jalankan:<\/p>\n<pre># drbdadm down test\r\n<\/pre>\n<p>Untuk memeriksa status sumber daya, jalankan perintah berikut (perhatikan bahwa kondisi <strong>Inconsistent\/Inconsistent<\/strong> diharapkan pada saat ini):<\/p>\n<pre># drbdadm status test\r\nOR\r\n# drbdsetup status test --verbose --statistics \t#for  a more detailed status \r\n<\/pre>\n<div id=\"attachment_31537\" class=\"wp-caption aligncenter\" style=\"width: 812px;\">\n<p><a href=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/check-resource-status-on-both-nodes.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31537\" style=\"display: inline;\" src=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/check-resource-status-on-both-nodes.png?resize=802%2C351&#038;ssl=1\" sizes=\"auto, (max-width: 802px) 100vw, 802px\" srcset=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/check-resource-status-on-both-nodes.png 802w, https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/check-resource-status-on-both-nodes-768x336.png 768w\" alt=\"Check Resource Status on Nodes\" width=\"802\" height=\"351\" data-lazy-loaded=\"true\" \/><noscript><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31537\" src=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/check-resource-status-on-both-nodes.png?resize=802%2C351&#038;ssl=1\" alt=\"Check Resource Status on Nodes\" width=\"802\" height=\"351\" srcset=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/check-resource-status-on-both-nodes.png 802w, https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/check-resource-status-on-both-nodes-768x336.png 768w\" sizes=\"auto, (max-width: 802px) 100vw, 802px\" \/><\/noscript><\/a><\/p>\n<p class=\"wp-caption-text\">Check Resource Status on Nodes<\/p>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"Step_5_Set_Primary_ResourceSource_of_Initial_Device_Synchronization\"><\/span>Step 5: Set Primary Resource\/Source of Initial Device Synchronization<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Pada tahap ini, DRBD sekarang siap untuk beroperasi. Kita sekarang perlu memberi tahu node mana yang harus digunakan sebagai sumber sinkronisasi perangkat awal.<\/p>\n<p>Jalankan perintah berikut hanya pada satu server untuk memulai sinkronisasi penuh awal:<\/p>\n<pre># drbdadm primary --force test\r\n# drbdadm status test\r\n<\/pre>\n<div id=\"attachment_31539\" class=\"wp-caption aligncenter\" style=\"width: 672px;\">\n<p><a href=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/set-primary-node-for-initial-device-sync.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31539\" style=\"display: inline;\" src=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/set-primary-node-for-initial-device-sync.png?resize=662%2C173&#038;ssl=1\" alt=\"Set Primary Node for Initial Device\" width=\"662\" height=\"173\" data-lazy-loaded=\"true\" \/><noscript><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31539\" src=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/set-primary-node-for-initial-device-sync.png?resize=662%2C173&#038;ssl=1\" alt=\"Set Primary Node for Initial Device\" width=\"662\" height=\"173\" \/><\/noscript><\/a><\/p>\n<p class=\"wp-caption-text\">Set Primary Node for Initial Device<\/p>\n<\/div>\n<p>Setelah sinkronisasi selesai, status kedua disk harus UpToDate.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Step_6_Testing_DRBD_Setup\"><\/span>Step 6: Testing DRBD Setup<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Akhirnya, kita perlu menguji apakah perangkat DRBD akan bekerja dengan baik untuk penyimpanan data yang direplikasi. Ingat, kami menggunakan volume disk kosong, oleh karena itu kami harus membuat sistem file pada perangkat, dan memasangnya, untuk menguji apakah kami dapat menggunakannya untuk penyimpanan data yang direplikasi.<\/p>\n<p>Kita dapat membuat sistem file pada perangkat dengan perintah berikut, pada node tempat kita memulai sinkronisasi penuh awal (yang memiliki sumber daya dengan peran utama):<\/p>\n<pre># mkfs -t ext4 \/dev\/drbd0 \r\n<\/pre>\n<div id=\"attachment_31540\" class=\"wp-caption aligncenter\" style=\"width: 832px;\">\n<p><a href=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/make-filesystem-type-on-drbd-volume.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31540\" style=\"display: inline;\" src=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/make-filesystem-type-on-drbd-volume.png?resize=822%2C458&#038;ssl=1\" sizes=\"auto, (max-width: 822px) 100vw, 822px\" srcset=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/make-filesystem-type-on-drbd-volume.png 822w, https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/make-filesystem-type-on-drbd-volume-768x428.png 768w\" alt=\"Make Filesystem on Drbd Volume\" width=\"822\" height=\"458\" data-lazy-loaded=\"true\" \/><noscript><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31540\" src=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/make-filesystem-type-on-drbd-volume.png?resize=822%2C458&#038;ssl=1\" alt=\"Make Filesystem on Drbd Volume\" width=\"822\" height=\"458\" srcset=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/make-filesystem-type-on-drbd-volume.png 822w, https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/make-filesystem-type-on-drbd-volume-768x428.png 768w\" sizes=\"auto, (max-width: 822px) 100vw, 822px\" \/><\/noscript><\/a><\/p>\n<p class=\"wp-caption-text\">Make Filesystem on Drbd Volume<\/p>\n<\/div>\n<p>Kemudian pasang seperti yang ditunjukkan (Anda dapat memberikan nama yang sesuai pada titik mount):<\/p>\n<pre class=\"\"># mkdir -p \/mnt\/DRDB_PRI\/\r\n# mount \/dev\/drbd0 \/mnt\/DRDB_PRI\/\r\n<\/pre>\n<p>Sekarang salin atau buat beberapa file ke folder \/mnt\/DRDB_PRI\/ dan lihat daftar file menggunakan perintah ls:<\/p>\n<pre># cd \/mnt\/DRDB_PRI\/\r\n# ls -l \r\n<\/pre>\n<div id=\"attachment_31541\" class=\"wp-caption aligncenter\" style=\"width: 862px;\">\n<p><a href=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/list-contents-of-drbd-volume-on-primary-node.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31541\" style=\"display: inline;\" src=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/list-contents-of-drbd-volume-on-primary-node.png?resize=852%2C116&#038;ssl=1\" sizes=\"auto, (max-width: 852px) 100vw, 852px\" srcset=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/list-contents-of-drbd-volume-on-primary-node.png 852w, https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/list-contents-of-drbd-volume-on-primary-node-768x105.png 768w\" alt=\"List Contents of Drbd Primary Volume\" width=\"852\" height=\"116\" data-lazy-loaded=\"true\" \/><noscript><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31541\" src=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/list-contents-of-drbd-volume-on-primary-node.png?resize=852%2C116&#038;ssl=1\" alt=\"List Contents of Drbd Primary Volume\" width=\"852\" height=\"116\" srcset=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/list-contents-of-drbd-volume-on-primary-node.png 852w, https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/list-contents-of-drbd-volume-on-primary-node-768x105.png 768w\" sizes=\"auto, (max-width: 852px) 100vw, 852px\" \/><\/noscript><\/a><\/p>\n<p class=\"wp-caption-text\">List Contents of Drbd Primary Volume<\/p>\n<\/div>\n<p>Selanjutnya, unmount perangkat (pastikan bahwa mount tidak terbuka, ubah direktori setelah unmount untuk mencegah kesalahan) dan ubah peran node dari primer ke sekunder:<\/p>\n<pre class=\"\"># umount \/mnt\/DRDB_PRI\/\r\n# cd\r\n# drbdadm secondary test\r\n<\/pre>\n<p>Di server lain (yang memiliki sumber daya dengan peran sekunder), buatlah primer, lalu pasang perangkat di atasnya dan lihat daftar file nya. Jika pengaturan bekerja dengan baik, semua file yang disimpan dalam volume harus ada di sana:<\/p>\n<pre># drbdadm primary test\r\n# mkdir -p \/mnt\/DRDB_SEC\/\r\n# mount \/dev\/drbd0 \/mnt\/DRDB_SEC\/\r\n# cd \/mnt\/DRDB_SEC\/\r\n# ls  -l \r\n<\/pre>\n<div id=\"attachment_31542\" class=\"wp-caption aligncenter\" style=\"width: 872px;\">\n<p><a href=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/test-drbd-setup-is-working-on-secondary-node.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31542\" style=\"display: inline;\" src=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/test-drbd-setup-is-working-on-secondary-node.png?resize=862%2C306&#038;ssl=1\" sizes=\"auto, (max-width: 862px) 100vw, 862px\" srcset=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/test-drbd-setup-is-working-on-secondary-node.png 862w, https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/test-drbd-setup-is-working-on-secondary-node-768x273.png 768w\" alt=\"Test DRBD Setup Working on Secondary Node\" width=\"862\" height=\"306\" data-lazy-loaded=\"true\" \/><noscript><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31542\" src=\"https:\/\/i0.wp.com\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/test-drbd-setup-is-working-on-secondary-node.png?resize=862%2C306&#038;ssl=1\" alt=\"Test DRBD Setup Working on Secondary Node\" width=\"862\" height=\"306\" srcset=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/test-drbd-setup-is-working-on-secondary-node.png 862w, https:\/\/www.tecmint.com\/wp-content\/uploads\/2019\/01\/test-drbd-setup-is-working-on-secondary-node-768x273.png 768w\" sizes=\"auto, (max-width: 862px) 100vw, 862px\" \/><\/noscript><\/a><\/p>\n<p class=\"wp-caption-text\">Test DRBD Setup Working on Secondary Node<\/p>\n<\/div>\n<p>Untuk informasi lebih lanjut, lihat halaman manual alat administrasi ruang pengguna:<\/p>\n<pre># man drbdadm\r\n# man drbdsetup\r\n# man drbdmeta\r\n<\/pre>\n<p><strong>Referensi<\/strong>: <a href=\"https:\/\/docs.linbit.com\/docs\/users-guide-8.4\/\" target=\"_blank\" rel=\"nofollow noopener\">The DRBD User\u2019s Guide<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>DRBD (kependekan dari Distributed Replicated Block Device) adalah solusi penyimpanan yang direplikasi, fleksibel dan serbaguna untuk Linux. Ini mencerminkan konten perangkat blok seperti hard disk, partisi, volume logis, dll. Antara server. Ini melibatkan salinan data pada dua perangkat penyimpanan, sehingga jika salah satu gagal, data di sisi lain dapat digunakan. Anda dapat menganggapnya agak seperti [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2029,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[91],"tags":[],"class_list":["post-2028","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cara Setup DRBD dan membuat Replika Storage Dua Server CentOS 7 - Hostnic.id<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.hostnic.id\/blog\/tutorial\/linux\/cara-setup-drbd-dan-membuat-replika-storage-dua-server-centos-7\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara Setup DRBD dan membuat Replika Storage Dua Server CentOS 7 - Hostnic.id\" \/>\n<meta property=\"og:description\" content=\"DRBD (kependekan dari Distributed Replicated Block Device) adalah solusi penyimpanan yang direplikasi, fleksibel dan serbaguna untuk Linux. 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