Isilon: Cannot Find Disk Provider Error On Reimaging

The error message "Cannot find disk provider" appears during the reimaging process.

Cannot find disk provider
Traceback (most recent call last):
  File "/root/bin/flashdisk_reimage.py", line 2375, in 
    sys.exit(main(getargs()))
  File "/root/bin/flashdisk_reimage.py", line 2251, in main
    setup_psi(args)
  File "/root/bin/flashdisk_reimage.py", line 1703, in setup_psi
    setup_psi_backup_device(args)
  File "/root/bin/flashdisk_reimage.py", line 1763, in setup_psi_backup_device
    psi_backup_device.providers.init_short()
  File "/root/bin/flashdisk_reimage.py", line 1213, in init_short
    bootdisk.init_providers(wipe=False)
  File "/b/mnt/obj/b/mnt/src/amd64.amd64/isilon/lib/python/stage-3.8/usr/local/lib/python3.8/site-packages/isi/sys/bootdisk.py", line 729, in init_providers
  File "/b/mnt/obj/b/mnt/src/amd64.amd64/isilon/lib/python/stage-3.8/usr/local/lib/python3.8/site-packages/isi/sys/bootdisk.py", line 730, in 
IndexError: list index out of range

The command to confirm the issue is: isi_bootstrap_devices -b, which produces the following output:

isi-bsd# /usr/bin/isi_hwtools/isi_bootstrap_devices -b
name:
isi-bsd#

The cause of this issue is a disk missing in the highest slot number of the A sled for the node.

To resolve the issue, follow these steps:

• Put a drive into the highest slot number of the A sled for the node. If the drive was removed due to a fault, replace the faulted drive before continuing.
• If you have a drive in the highest A slot number, swap the drive with another drive in the sled. Once the sled is reseated, attempt the reimage process again.