Sun Microsystems StorEdge MultiPack-FC Installation, Operation And Service Manual page 57

Caution – Drives should not be pulled out randomly. If the drive is active, you
must stop that activity before removing the drive. This can be done without shutting
down the operating system or powering off the MultiPack-FC unit. The Sun
MultiPack-FC hardware supports hot-plugging drives, but there are software
considerations that must be taken into account. Follow the procedures in this section
when removing, replacing, and adding drives.
Removing a Drive
FIGURE 3-6
In general, hot-plug reconfiguration operations involve three stages:
1. Preparing for hot-plug reconfiguration
2. Adding, replacing, or removing a drive
3. Reconfiguring the operating environment
Two specific cases exist where the hot-plug feature may be useful:
Adding a drive to a system to increase storage capacity
Replacing a faulty drive while the system is running
Chapter 3 Service 3-7