Filter
Top Products
A-90 Dell PowerVault 720N, 740N, and 760N System Administrator and Command Reference Guide
NAME
shelfchk - verify the communication of environmental information between disk
shelves and the filer
SYNOPSIS
shelfchk
DESCRIPTION
The shelfchk command verifies that the disk shelves and the filer can exchange
environmental information. If the environmental information is being exchanged,
you can hotswap disks in the disk shelves.
The shelfchk command is interactive. It requires that you type in your responses
after observing the LEDs on the disks. Therefore, enter this command from a
console that is near the disk shelves.
The shelfchk command steps through all the disk host adapters that the filer dis-
covered when it booted. For each host adapter, the shelfchk command tries to
turn on the disk LEDs on the attached disk shelves. The command waits for con-
firmation that you have observed the LEDs. If you see that all the LEDs are on,
respond yes when prompted. If one or more LEDs are off, you respond no
to the prompt. In this case, a problem exists that might prevent hot swapping on
the affected shelves. The shelfchk command terminates as soon as you respond
no to the prompt. It does not continue to test the other disk shelves. A possi-
ble cause of disk shelf problems is that the cables for the shelves are not
connected properly.
Enter the shelfchk command immediately after you install one or more disk
shelves. This way, if there are any cabling problems, you can fix them as soon as
possible. Also, this command enables you to quickly correlate the disk shelves
with their corresponding host adapter. For example, if you intend to have all disk
shelves connected to a particular host adapter to be installed in one rack, the
shelfchk command enables you to see at a glance whether any disk shelves
were installed inadvertently in a different rack.
EXAMPLE
In the following example, the shelfchk command tests the disk shelves of a filer
with three host adapters (8a, 8b, and 7a) and finds no problems:
filer> shelfchk
Only shelves attached to ha 7a should have all LEDs ON.
Are these LEDs all ON now? y
Only shelves attached to ha 8a should have all LEDs ON.
Are these LEDs all ON now? y
Only shelves attached to ha 8b should have all LEDs ON.
Are these LEDs all ON now? y
filer> Fri Aug 22 21:35:39 GMT [rc]: Disk Configuration - No Errors Identified
shelfchk