The NetScaler SD-WAN virtual machines are hosted on the hard-disk drive.
Replacing a Hard
Verify that the replacement hard disk drive is the correct type for the NetScaler SD-WAN WANOP/SE 4000, WANOP 5000, and 5100 SE platforms.
To install a hard disk drive
Shut down the appliance.
Locate the hard disk drive on the back panel of the appliance.
Disengage the hard disk drive by pushing the safety latch of the drive cover to the right or down, depending on the platform, while pulling out on the drive handle to disengage. Pull out the faulty drive.
Figure 1. Removing the Existing Hard Disk Drive
Pick up the new disk drive, open the drive handle fully to the left, and insert the new drive into the slot as far as possible. To seat the drive, close the handle flush with the rear of the appliance so that the hard drive locks securely into the slot.
Important: When you insert the drive, make sure that the Citrix product label is at the top.
Figure 2. Inserting the Replacement Hard Disk Drive