https://metavige.github.io/tags/linux/Recent content in Linux on @metavigeHugozh-TWMon, 05 Sep 2016 17:29:00 +0800https://metavige.github.io/2016/09/05/ceph-rbd/Mon, 05 Sep 2016 17:29:00 +0800https://metavige.github.io/2016/09/05/ceph-rbd/<p>簡單記錄一下 Ceph RBD 使用的紀錄 &mdash;&gt;</p> <!-- more --> <h4 id="先安裝-ceph-common" class="relative group">先安裝 ceph-common <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100"><a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700" style="text-decoration-line: none !important;" href="#%e5%85%88%e5%ae%89%e8%a3%9d-ceph-common" aria-label="定位點">#</a></span></h4><pre tabindex="0"><code>apt-get install ceph-common </code></pre><p>目前在 ubuntu trusty 內安裝的版本是</p> <pre tabindex="0"><code>$ rbd -v ceph version 0.80.11 (8424145d49264624a3b0a204aedb127835161070) </code></pre><h4 id="建立-image-動作-假設-image-name-是-test" class="relative group">建立 Image 動作 (假設 image name 是 test): <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100"><a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700" style="text-decoration-line: none !important;" href="#%e5%bb%ba%e7%ab%8b-image-%e5%8b%95%e4%bd%9c-%e5%81%87%e8%a8%ad-image-name-%e6%98%af-test" aria-label="定位點">#</a></span></h4><pre tabindex="0"><code>sudo rbd create --size &lt;MB&gt; test </code></pre><h5 id="mapping-到-dev" class="relative group">Mapping 到 dev <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100"><a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700" style="text-decoration-line: none !important;" href="#mapping-%e5%88%b0-dev" aria-label="定位點">#</a></span></h5><pre tabindex="0"><code>sudo rbd map test </code></pre><blockquote> <p>這邊預設會把 image mapping 到 /dev/rbd/rbd 下面，名稱就是 image name<br> 所以會放在 /dev/rbd/rbd/test</p>