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When first setting up the gateway, CTERA recommends formating the disk as described in the CTERA Cloud Storage Gateway Installation Guide for the platform, before creating the volume or defining a JBOD array for the disk. The formatting is done as part of the setup wizard, in the Easy Storage Setup screen.

Increasing a Volume Size When Additional Storage is Available for the Volume

To enlarge a volume in an ESXi virtual gateway:

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Note: When using XFS volumes, they cannot be shrunk.

Increasing a Volume Size When Additional Storage is Not Available

The following procedure assumes that when first setting up the gateway, as described in CTERA Cloud Storage Gateway Installation Guide for the platform, the disk was formatted before creating the volume. If this is not the case, but a JBOD or RAID0 array was created then refer to Increasing Available Storage When an Array was Defined. If the volume was not formatted and an array was not created, do the following:

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  1. In the vSphere Web Client, power off the virtual machine.
  2. Right-click the Virtual Gateway VM and select Edit Settings.
    The configuration is displayed for the Virtual Gateway.
  3. Change the disk size to be greater that it was. The maximum disk size is dependent on the virtual gateway license.
    For an EV8 license the maximum is 8TB.
    For an EV16 license the maximum is 16TB.
    For an EV32 license the maximum is 32TB.
    For an EV64 license the maximum is 64TB.
    Note: A VMware ESXi host limits disks to a maximum of 62TB. To support storage greater than 62TB, you need to create multiple disks, each less than 62TB and then create an array of these disks in RAID 0.
  4. Click Save.
  5. Power on the virtual machine and follow the instructions in Increasing a Volume Size When Additional Storage is Available for the Volume.

Increasing Available Storage When an Array was Defined

Note: Adding a disk, for example when the original disk is already 62TB, which is the maximum VMDK size supported by an ESXi host, does not enable increasing the volume size unless the original disk was configured as a JBOD or RAID0 array, since the two disks are separate. If a JBOD or RAID0 array was defined for the original disk, then after adding a new disk, it can be added to the array.

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