Replacing System Components - HP MSA 30 User Manual

Before removing a component from the system:
Be sure that a replacement component is immediately available. Order a
replacement if necessary, using the spare part number that is printed on the
product label. This part number consists of a nine-digit number, broken by a
hyphen into a six-digit portion and a three-digit portion.
Refer to the following table to determine whether the component can be removed
without stopping data transfer or disconnecting AC power.
Table 3-1: Recommended Pre-Replacement Actions
Component
Blower
Disk drive
Power supply unit
I/O module
SCSI cable
EMU
HP StorageWorks Modular Smart Array 30 User Guide

Replacing System Components

Comments
These devices are hot-pluggable. You can replace these devices at any time,
even when the system power is on and data is being transferred. They are
distinguishable from non-hot-pluggable devices by means of a purple handle,
tab, or release latch.
These items are warm-pluggable. Before removing or installing these items,
you must first stop all data transfer to or through the item. You do not need to
disconnect AC power from the system.
Depending on the type of controller connected to the system, the EMU could
be hot-pluggable or cold-pluggable. Unless the controller documentation
indicates otherwise, assume that the EMU can only be cold-plugged. Stop all
data transfer and disconnect AC power from the system before removing or
installing this device.
3
3-1