This topic describes adding and expanding storage devices after initial configuration. Delphix recommends expanding existing storage whenever possible; if it is not possible to expand Delphix recommends adding new LUNs of equal size to the existing storage pool.

Prerequisites

If you are expanding a storage device after initial configuration, first make sure to add capacity to it using the storage management tools available through the device's operating system. In vSphere, for example, you can add capacity using Edit System Settings.

VMware Hypervisor (vSphere)

It is usually not necessary to reboot the Delphix Engine to add/expand storage if you're using vSphere.

If you followed the guidelines for adding your initial storage using all 4 virtual SCSI controllers, the Delphix Engine will see new storage without a reboot. On the other hand, if your new storage is leveraging a new virtual SCSI controller, you will need to reboot the Delphix Engine to detect the new storage. See Virtual Machine Requirements for VMware Platform for more information.

AWS

When a Delphix Engine running on AWS has additional storage space added to it by expanding the size of its existing EBS volumes, this additional space is not visible to the Delphix Engine which continues to show the original EBS volume size until a reboot can be performed.

Procedure

Adding a Storage Device

If it is available you can add more storage devices to the Delphix Engine.

  1. Launch the Delphix Setup application and log in using the sysadmin credentials.
  2. In the Storage section of the Server Setup Summary screen, click Modify.
  3. The Delphix engine should automatically detect any new storage devices. 
    If a newly added storage device does not appear in the Storage section of the Server Setup Summary screen, click Rediscover.
  4. The newly-added devices will have a drop-down in the Usage Assignment column. Set the Usage Assignment to DATA for newly-added devices that you wish to add to the storage pool.
  5. Click Save.

Expanding a Storage Device

  1. Launch the Delphix Setup application and log in using the sysadmin credentials.
  2. In the Storage section of the Server Setup Summary screen, click Modify.
  3. Select Expand for each device that you want to expand. 
    The Expand checkbox appears next to the name of devices that have added capacity (in other words,  the underlying LUN has been expanded), and the Unused column indicates how much capacity is available for each device. 
  4. Click Save.