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Dell EMC PowerVault MD 34XX/38XX Series Storage Arrays Administrator's Guide

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Virtual disk expansion

Virtual disk expansion is a dynamic modification operation that increases the capacity of standard virtual disks.
NOTE: Snapshot repository virtual disks can be expanded from the CLI or from MD Storage Manager. All other virtual disk types are expandable only from the CLI.

If you receive a warning that the snapshot repository virtual disk is becoming full, you may expand the snapshot repository virtual disk from MD Storage Manager.

To increase the capacity of a virtual disk, complete the following steps:
  1. In the Array Management Window (AMW), select Storage & Copy Services.
    NOTE: After increasing the virtual disk capacity, you cannot decrease it. This operation may take a while to complete and you cannot cancel it after it starts. However, the virtual disk will remain accessible.
  2. Select an appropriate virtual disk.
  3. From the menu, select Storage > Virtual Disk > Increase Capacity. Or

    Right-click the virtual disk and select Increase Capacity from the pop-up menu.

    The Increase Virtual Disk Capacity - Additional Instructions window is displayed.

  4. Ensure that the operating system supports virtual disk expansion, and then click OK.
  5. In the Increase Virtual Disk Capacity window, type the required memory volume to increase the capacity of the virtual disk. If additional disks are required to be added, then select Add Physical Disks.

    For more information about disk group expansion instructions, see Disk group expansion.

  6. Click OK.

    This operation cannot be cancelled after initiating, and this may take a while to complete. However, the virtual disk remains accessible.

NOTE: You can also use the Command Line Interface (CLI) on both Windows and Linux hosts to increase the capacity of a virtual disk. For more information, see Dell EMC PowerVault MD 34XX/38XX Series Storage Arrays CLI Guide.
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