HP 9000 Virtual Library System - Manual (Page 91)

7 Operation
This section describes how to power on and power off the VLS nodes and arrays.
Powering On VLS Arrays
The order in which you power up the disk array enclosures in an array is important. Power on the
base enclosure last in order to ensure that the disks in the capacity enclosures have enough time
to spin completely before being scanned by the RAID controllers in the base enclosure.
CAUTION: Power on only one array enclosure at a time to avoid overloading the AC power
source.
To power on an array:
1.
Turn both power switches on the rear of each array enclosure to On.
Some power supply models do not have a power switch; in this case, the power cords were
unplugged from the enclosure to power it down. Plug the cords back into the enclosure.
Start with the capacity enclosure farthest from the base enclosure and working toward the
base enclosure. Then power on the base enclosure.
2. If you just replaced a capacity enclosure, check the enclosure ID displayed on the front of the
enclosures. Each array contains a base enclosure with an enclosure ID of 0. The capacity
enclosure installed just below the base enclosure should have an enclosure ID of 1. The next
capacity enclosure down in the rack should have an enclosure ID of 2, and the next should
have an enclosure ID of 3. (The numbering works the same way regardless of the number of
enclosures in your system.) If the enclosure IDs displayed are not correct after replacing a
capacity enclosure, you must rescan the enclosures and assign them enclosure IDs based on
their rack positions. Follow these steps from Command View VLS:
a.
Click the System tab.
b. Select the disk array in the navigation tree with the new capacity enclosure.
c. Record either RAID controller's IP address displayed on the disk array details window.
d. Open a secure shell session. See “Opening a Secure Shell Session” (page 102) .
e. Telnet to one of the RAID controllers in the array by entering: telnet <IP address
of RAID controller>
and then press Enter.
f. At the Login as: prompt, enter manage and then press Enter.
g. At the Password: prompt, enter !manage and then press Enter.
h. Enter rescan and then press Enter.
i. Verify that the new capacity enclosure's ID is correct.
j. Power off the new capacity enclosure, leaving the power switch off for at least 60 seconds.
Then, power the capacity enclosure back on.
3. Confirm that the disk array enclosures are all functioning normally by observing the condition
of their status LEDs. The LED status should match those shown in the following tables.
If an LED status does not match the status shown in the following tables, a component needs
attention.
Powering On VLS Arrays 91