Owner`s manual

3–16 SF72 Storage Enclosure Operation
3.5 Placing a Disk ISE On-Line
After power is applied to the SF72 enclosure, use the following procedure
to place a disk ISE on-line. Perform all steps in the order in which they
are presented.
1. Press the Ready button on the OCP to bring the ISE on-line.
a. The Ready indicator flickers while the disk ISE is spinning up. If
you power up a disk ISE with the Ready button for that disk ISE
in the on (in) position, you must press the Ready button to put it
in its off (out) position momentarily, then press the button in to
bring the disk ISE on-line correctly.
b. All other indicators remain off.
c. When the disk ISE has completed spinup, the Ready indicator
illuminates, indicating that the disk ISE is ready for read/write
operation.
d. The Fault indicator illuminates if the disk ISE detects a fault.
Refer to Chapter 4 of this manual for recovery procedures.
2. Press the Write Protect button on the OCP, as required, to turn on
write-protect mode. To deselect write-protect mode, press this button
a second time.
Repeat this entire procedure for each disk ISE being placed on-line.
NOTE
The Ready indicator remains lit during normal operation, though
it may flicker during heavy seeks.
The Write Protect indicator is lit when the disk ISE is write-
protected, and off when the disk ISE is write-enabled.
3.6 Taking a Disk ISE Off-Line
To take a disk ISE off-line, press the Ready button (out position) and wait
until the LED goes out.