HP D5970A - NetServer - LCII Manual page 57

Chapter 3
If the suspect drive is not detected, swap the suspect module for
another module that was detected in another position, restart the
NetServer, and see whether either of those two drives are detected.
If the suspect drive is detected in its new position, the secondary
hot-swap mass storage cage may be defective. Contact your reseller.
If the other drive (in the module swapped for the suspect module) is
not detected in its new position, the secondary hot-swap mass
storage cage may be defective. Contact your reseller.
If the suspect drive is not detected in its new position, go to action
4 below.
4. The suspect drive was not detected, even in another position:
If you purchased the disk drive module already assembled, the module
may be defective. Contact your reseller.
If you installed the disk drive into the tray, check that installation. Refer
to the HP NetServer Ultra2 SCSI Hot-swap Hard Disk Drive and Tray
User Guide to do the following: remove the module from the cage;
reinstall the disk drive into the tray, and reinstall the module into the
cage. Restart the NetServer to see if the drive is detected.
If so, the problem is solved.
If not, the disk drive or the tray may be defective. Contact your
reseller.
Configure Mass Storage
53