Replacing Hot-Swap Hard Disk Drives; Drive Cru Handle - IBM TotalStorage DS4100 Installation, User's, And Maintenance Manual

Figure 63. Drive CRU handle

Replacing hot-swap hard disk drives

Drive problems include any malfunctions that delay, interrupt, or prevent successful
I/O activity between the hosts and the hard disk drives in the storage server. This
includes transmission problems between the host controllers, the RAID controllers,
and the drives. This section explains how to replace a failed hard disk drive.
Note: If you want to remove a hard disk drive that is not in a failed or bypass state,
Attention:
in loss of data. If you are replacing a hard disk drive that is part of a configured
array and logical drive, ensure that you install the replacement hard disk drive in the
correct bay. Check the hardware and software documentation that is provided with
your DS4000 storage server to see if there are restrictions regarding hard disk drive
configurations.
Complete the following steps to replace a hot-swap hard disk drive:
1. Determine the location of the drive that you want to remove.
2. Remove the drive CRU:
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IBM TotalStorage DS4100 Storage Server: Installation, User's, and Maintenance Guide
b. Pull the handle on the tray out so that it is in the open position, as shown in
Figure 63.
Tray handle
Tray latch
c. Slide the drive CRU into the empty bay until the hinge of the tray handle
latches beneath the storage server bezel.
d. Push the tray handle down until it latches into place.
always use the DS4000 Storage Manager client program either to place the
drive in a failed state or to place the array that is associated with the drive
(or drives) in an offline state before you remove the drive from the enclosure.
Failure to replace the hard disk drives in their correct bays might result
Attention: Never hot-swap a drive CRU when its green Activity LED is
flashing. Hot-swap a drive CRU only when its amber Fault LED is on and not
flashing or when the drive is inactive with the green Activity LED on and not
flashing.
If the drive is not in a failed state (as indicated by its lit amber LED), manually
fail the drive using the Storage Management client before attempting to remove
it from the drive slot.