HP StorageWorks 2300 Disk System - Manual (Page 118)

118 Removal and Replacement
6 Press the extraction handle to seat the disk module firmly on the midplane.
An audible click indicates the disk module is fully seated.
7 If you are installing a disk module (as opposed to a filler), monitor the LED
(D). It should be on while the disk spins up and then turn off. The LED will
blink with I/O activity to the disk. If you observe different results, refer to
Chapter 4, Troubleshooting, for probable causes.
8 Run IOSCAN on the host and verify that the replacement disk module is
“claimed.”
9 Restore file systems and data as needed (see Preparation (HP-UX 11.XX) on
page 110).