Whether OceanStor T Series support online capacity expansion of disks

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OceanStor T Series support online capacity expansion of disks.

Other related questions:
Procedure for expanding the disk enclosure of OceanStor T Series online
OceanStor T Series storage products support online capacity expansion of disk enclosures. For details, see .

Whether OceanStor T Series support online capacity expansion of controllers
OceanStor T Series V1 storage products do not support online capacity expansion of controllers. OceanStor T Series V1 storage products support only dual controllers.

Method used to expand LUN capacity of OceanStor T Series
You can expand LUN capacity of OceanStor T Series as follows: Go to the Expand dialog box. In the ISM navigation tree, choose All Devices > SN_XX > Storage Resources > Block Storage Pools. (SN_XX indicates the target storage storage.) In the right function pane, select the RAID group you want to expand. Click Expand. The Expand dialog box is displayed. Expand a RAID group. In the Available Disks area, select the idle disks that you want to add to the RAID group. Note: To improve disk utilization, you are advised to select an idle disk of which the capacity is the same as that of a member disk in the RAID group. Click the idle disk and add the disk to the Selected Disks group box. Confirm the RAID group expansion. Click OK. The Warning dialog box is displayed. Read and confirm the information in the dialog box. Then select I have read the warning message carefully. Click OK. The Information dialog box is displayed, indicating that the operation is successful. Click OK to return to the Block Storage Pools page and complete RAID group expansion. Result After the RAID group is expanded, you can perform the following operations to check the total capacity of the RAID group after capacity expansion. On the Block Storage Pools page, select the RAID group after capacity expansion. Click the Details tab to view the total capacity of the RAID group after capacity expansion.

Adding a disk to a RAID array
You can add a disk to a RAID array as follows: 1. If the LSISAS2208 or LSISAS3108 RAID controller card is used, you can add a new disk to a RAID array online. For details about how to expand the virtual disk (VD) capacity online, see HUAWEI Server RAID Controller Card User Guide 09. 2. If the LSISAS2308 or LSISAS3008 RAID controller card is used, you cannot add a disk to a RAID array through online capacity expansion and cannot expand the VD capacity online. 3. If softRAID is used, you cannot add a disk to a RAID array online or expand the VD capacity online.

Whether the SmartCache feature of the OceanStor V3 Series supports online expansion
The SmartCache feature supports online expansion.

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