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zhangyue
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Reviewed-by: Miskanin, Jan <jan.miskanin@t-systems.com> Co-authored-by: zhangyue <zhangyue164@huawei.com> Co-committed-by: zhangyue <zhangyue164@huawei.com>
55 lines
7.8 KiB
HTML
55 lines
7.8 KiB
HTML
<a name="evs_01_0006"></a><a name="evs_01_0006"></a>
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<h1 class="topictitle1">Expansion Overview</h1>
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<div id="body1505902410872"><div class="section" id="evs_01_0006__section1493121695811"><h4 class="sectiontitle">What Is Capacity Expansion?</h4><p id="evs_01_0006__p17316192517568">If the capacity of an existing disk is insufficient, you can expand the disk capacity to increase the storage space.</p>
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<p id="evs_01_0006__p177821955155113">Both system disks and data disks can be expanded. A system disk can be expanded to up to 1 TiB, and a data disk to 32 TiB. Disk capacity can only be expanded, not reduced.</p>
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<div class="note" id="evs_01_0006__note969914021015"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="evs_01_0006__p569984012105">If you detach a system disk and then attach it to an <span id="evs_01_0006__text1162718119131">ECS</span> as a data disk, the maximum capacity of this disk is still 1 TiB.</p>
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</div></div>
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</div>
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<div class="section" id="evs_01_0006__section173511542246"><h4 class="sectiontitle">How to Expand the Disk Capacity?</h4><p id="evs_01_0006__p1115871365619">A capacity expansion operation includes the following steps:</p>
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<ol id="evs_01_0006__ol284044018564"><li id="evs_01_0006__li19840124005611"><a href="#evs_01_0006__section87622024418">Expand the disk capacity on the management console.</a></li><li id="evs_01_0006__li196492053185615"><a href="#evs_01_0006__section487311389414">Log in to the server and extend the disk partition and file system.</a></li></ol>
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<p id="evs_01_0006__p1282495515718"></p>
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<div class="fignone" id="evs_01_0006__fig76833489137"><span class="figcap"><b>Figure 1 </b>Capacity expansion procedure</span><br><span><img id="evs_01_0006__image86835482133" src="en-us_image_0228748662.png"></span></div>
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</div>
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<div class="section" id="evs_01_0006__section87622024418"><a name="evs_01_0006__section87622024418"></a><a name="section87622024418"></a><h4 class="sectiontitle">Expand the Disk Capacity on the Management Console</h4><div class="p" id="evs_01_0006__p178891721125">Choose a proper expansion method based on the disk status. <ul id="evs_01_0006__ul14745439216"><li id="evs_01_0006__li492992142913">For an In-use disk:<div class="p" id="evs_01_0006__p34381939102915"><a name="evs_01_0006__li492992142913"></a><a name="li492992142913"></a>The disk has been attached to a <span id="evs_01_0006__text143552203916">server</span>. Check whether the disk can be expanded in the In-use state by referring to <a href="evs_01_0007.html#evs_01_0007__section158147122515">Constraints</a>.<ul id="evs_01_0006__ul15745193825"><li id="evs_01_0006__li174513318219">If yes, expand the disk capacity according to <a href="evs_01_0007.html">Expanding Capacity for an In-use EVS Disk</a>.</li><li id="evs_01_0006__li137456316216">If no, detach the disk. Then, expand the disk capacity according to <a href="evs_01_0008.html">Expanding Capacity for an Available EVS Disk</a>.</li></ul>
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</div>
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</li><li id="evs_01_0006__li1184472210316">For an Available disk:<p id="evs_01_0006__p1969611273317"><a name="evs_01_0006__li1184472210316"></a><a name="li1184472210316"></a>The disk has not been attached to any <span id="evs_01_0006__text1414774520916">server</span> and can be directly expanded by referring to <a href="evs_01_0008.html">Expanding Capacity for an Available EVS Disk</a>.</p>
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<p id="evs_01_0006__p17609229173220">A shared disk can be expanded only when its status is <strong id="evs_01_0006__b124464712576">Available</strong>.</p>
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</li></ul>
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</div>
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</div>
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<div class="section" id="evs_01_0006__section487311389414"><a name="evs_01_0006__section487311389414"></a><a name="section487311389414"></a><h4 class="sectiontitle">Log In to the Server and Extend the Disk Partition and File System</h4><div class="p" id="evs_01_0006__p15236134417610">After the disk has been expanded on the management console, only the disk storage capacity is enlarged, but its additional space cannot be used directly. You must log in to the <span id="evs_01_0006__text6112737100">server</span> and extend the disk partition and file system. For details, see <a href="#evs_01_0006__table458383431811">Table 1</a>.
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<div class="tablenoborder"><a name="evs_01_0006__table458383431811"></a><a name="table458383431811"></a><table cellpadding="4" cellspacing="0" summary="" id="evs_01_0006__table458383431811" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Extending the disk partition and file system</caption><thead align="left"><tr id="evs_01_0006__row3584153411812"><th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.4.2.3.2.3.1.1"><p id="evs_01_0006__p17584123417187">Capacity After Expansion</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.4.2.3.2.3.1.2"><p id="evs_01_0006__p1858419349186">Extend Disk Partition and File System</p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="evs_01_0006__row15584133410181"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.4.2.3.2.3.1.1 "><p id="evs_01_0006__p20584234101814">Disk capacity ≤ 2 TiB</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.4.2.3.2.3.1.2 "><ul id="evs_01_0006__ul1792564894112"><li id="evs_01_0006__li7925248194119">Windows: <a href="en-us_topic_0017616396.html">Extending Disk Partitions and File Systems (Windows Server 2008)</a></li><li id="evs_01_0006__li1394915252421">Linux: <a href="evs_01_0035.html">Partition and File System Extension Preparations (Linux)</a></li></ul>
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</td>
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</tr>
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<tr id="evs_01_0006__row35841834121815"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.4.2.3.2.3.1.1 "><p id="evs_01_0006__p185841834141811">Disk capacity > 2 TiB</p>
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</td>
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<td class="cellrowborder" valign="top" width="50%" headers="mcps1.3.4.2.3.2.3.1.2 "><ul id="evs_01_0006__ul15171154910427"><li id="evs_01_0006__li5171949154210">GPT partition style: <a href="en-us_topic_0017616396.html">Extending Disk Partitions and File Systems (Windows Server 2008)</a> or <a href="evs_01_0035.html">Partition and File System Extension Preparations (Linux)</a></li><li id="evs_01_0006__li2355174092917">MBR partition style: Not supported<p id="evs_01_0006__p7650194892910"><a name="evs_01_0006__li2355174092917"></a><a name="li2355174092917"></a>The maximum disk capacity that MBR supports is 2 TiB, and the disk space exceeding 2 TiB cannot be used. If your disk uses MBR and you need to expand the disk capacity to over 2 TiB, change the partition style from MBR to GPT. Ensure that the disk data has been backed up before changing the partition style because services will be interrupted and data on the disk will be cleared during this change.</p>
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</li></ul>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="note" id="evs_01_0006__note1330184133117"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="evs_01_0006__p1729113471496">If the <span id="evs_01_0006__text197141233201114">server</span> is stopped during the expansion, the additional space of a Windows system disk, Windows data disk, or Linux system disk may be automatically added to the last partition after the <span id="evs_01_0006__text239613557137">server</span> is started. In this case, the additional space can be directly used. If the additional space is not automatically added, extend the partition and file system according to the preceding steps.</p>
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</div></div>
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</div>
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<div class="section" id="evs_01_0006__section387117383196"><h4 class="sectiontitle">Related Operations</h4><p id="evs_01_0006__p873161293016">For more expansion FAQs, see <a href="https://docs.otc.t-systems.com/en-us/usermanual/evs/evs_01_0077.html" target="_blank" rel="noopener noreferrer">Capacity Expansion</a>.</p>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="evs_01_0059.html">Disk Capacity Expansion</a></div>
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