Grass Valley PRS 250 RAID Storage System - Manual (Page 15)

Disk Drive Modules
RAID Instructions 1-5
Disk Drive Modules
A disk drive module, also called a disk module, consists of a disk drive, a power
regulator board, internal cabling, and a plastic carrier. The carrier has a handle and
guides for inserting and holding the module in the RAID Storage chassis. A label
attached to the carrier’s side shows the drive module’s model number and capacity.
Three status lights on the module indicate the following:
Ready light (green) — Lights while the disk drive module is powered up and ready
for use.
Busy light (green) — Lights while the drive is in use; for example, during formatting
or user I/O operations.
Fault light (amber) — Lights when the module is shut down by the SP because the
module failed. Also lights after you replace the drive, while the replacement drive
spins up to speed.
You can remove or install any one module at a time within a group of five drives
either while the storage chassis is running or in the idle mode (not running). You
should never open a disk drive module or attempt to replace any of its internal
components.
Ready light
(green)
Fault light
(amber)
Busy light
(green)
Disk drive module’s model
number label