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The Identify Function
The Identify function can be accessed from many of the service aid menus.
This function enables you to determine the location of a particular disk drive that you
want to identify, but do not want to remove. When set, the Identify function causes the
Check light of the disk drive to flash for identification (two seconds on, two seconds off),
but has no effect on the normal operation of the disk drive. It also causes the
Subsystem Check light (if present) of the unit containing the selected disk drive to flash.
You can use the Identify function on any number of disk drives at the same time.
Instructions displayed by the service aids tell you when you can select the Identify
function.
The service aids display the serial numbers of the devices. By checking the
serial-number label on the device, you can verify that the correct device has its Check
light flashing.
Note: Normally, you can reset the Identify function by selecting to switch it off from
inside a service aid display, or by leaving that particular service aid display. If,
however, you remove or switch off a disk drive that has the Identify function set,
the function remains set on that disk drive. When you reinstall or switch on the
disk drive, the disk drive Check light continues to flash. Under these conditions,
you can reset the Identify function by either of the following methods:
v Type on the command line:
v Select the Link Verification service aid for that disk drive.
Chapter 17. SSA Service Aids
375
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