install–38 - Ibm

Figure 39. Location of hot-swap drives
Hot-swap
drive CRU
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 completely on and not
flashing or when the drive is inactive with the green Activity LED on and not
flashing.
Before you install or remove drive CRUs, review the following information:
Filler panels
Storage servers without a full set of drives (14) contain filler panels in the
unused drive bays. Before installing new drives, you must remove the filler
panels. Save the filler panels for future use. Each of the 14 bays must
always contain either a filler panel or a drive CRU.
Drive CRUs
The RAID controller supports up to 14 (half-high or slim) 40-pin
fibre-channel hard disk drives. These drives come preinstalled in drive trays.
This drive-and-tray assembly is called a drive CRU. You can install the drive
CRUs in the 14 drive bays on the front of the storage server.
Drive LEDs
Each drive CRU has two LEDs, which indicate the status for that particular
drive. For information about the drive LED operating states and
descriptions, see Figure 34 on page 40 and Table 10 on page 40.
Fibre-channel loop IDs
When you install a drive CRU in the storage server, the drive CRU
connects into a printed circuit board called the midplane. The midplane
automatically sets the fibre-channel loop ID to the default value 00.
Hot-swap hardware
The storage server contains hardware that you can use to replace a failed
hard disk drive without turning off the storage server. Therefore, you can
continue operating the system while a hard disk drive is removed or
installed. These drives are known as hot-swap drives.
Slim drives
You can install slim, hot-swap drive CRUs.
Installing hot-swap drives
Before you begin, take the following precautions:
v Read the safety and handling guidelines that are provided in “Safety” on page iii
and “Handling static-sensitive devices” on page 45.
v Ensure that the current system configuration is working properly.
v Back up all important data before you make changes to storage devices, such as
hard disk drives.
46 IBM TotalStorage FAStT600 Fibre Channel Storage Server: Installation and User’s Guide