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Basic Limitations

<p class="shortdesc"></p> <ul class="ul" id="Basic__ul_xdz_zsc_rlb"> <li class="li">General EBS disks and SSD EBS disks cannot be unmounted and mounted.</li> <li class="li">Monthly EBS disks created with the instances cannot be unmounted and mounted. </li> <li class="li">The maximum size of all EBS disks mounted to each ECS instance is 6 T.</li> <li class="li">Five EBS disks can be mounted to each ECS instance.</li> <li class="li">The maximum size of a single EBS disk is 2000 G.</li> <li class="li">You cannot create monthly EBS disks separately.</li> <li class="li">You cannot change the type and capacity of the EBS disks created using snapshots. For example, if a snapshot used is a capacity EBS disk of 20 G, then the EBS disk created with this snapshot is also a capacity EBS disk of 20 G.</li> <li class="li">Snapshot data can be rolled back only to its source EBS disk. A rollback to other EBS disks is not supported.</li> </ul> <div class="note note note_note"><span class="note__title">Note:</span> Quota differs among users. If you need to increase the quota, <a class="xref" href="https://pinganyun.com/console/workorder/create" target="_blank">Submit Ticket</a> to apply. </div>
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