Grass Valley Profile XP Aug 16 2004 - Manual (Page 103)

Performing PFR500 maintenance tasks
23 July 2004 Profile XP System Guide 103
Forcing LUNs online: Recovery from improper power-off sequence
You must always power-off the PFR500 RAID Controller chassis prior to, or at the same
time as the PFR500E Expansion Chassis. Failure to do so may force some LUNs offline.
This will cause loss of access to the media file system when the system is powered on
again.
Offline LUNs can be recovered without the loss of the media file system using the GVG
Disk Utility. In Disk Utility, offline LUNs appear under the Bound node in the tree view,
however, LUN status is offline.
To force LUNs online using GVG Disk Utility:
1. In GVG Disk Utility, expand the tree view under the controller icon to view all
bound LUNs.
2. Determine which LUNs are offline by selecting each LUN and noting the LUN
status displayed in the right-hand pane.
3. Force LUNs online using the following steps:
a. In the GVG Disk Utility, right-click an offline LUN, then select Advanced |
Force Online in the context menu.
b. On receiving operation successful message, click OK .
NOTE: Do not refresh the display at this time.
4. Repeat step 3 for all offline LUNs.
5. Select View | Refresh in the main menu to refresh the display, then select each LUN,
and verify status is “Online”.
6. Reboot the RAID storage and Profile XP media platform using the “System reboot
procedure” on page 94.
NOTE: If your PFR500 is part of an Open SAN, disregard the previous step, and
refer to the instructions in the Open SAN Instruction Manual for powering-off and
powering-on the Open SAN.
Forcing a replacement drive to rebuild
In the event of a disk drive failure, you’ll repair the system by replacing the disk module
as soon as possible. Sometimes, after installing the replacement disk module, the drive
status is reported as “failed”. In this case, you must use the Disk Utility to force the new
drive to rebuild.
To force a replacement drive to rebuild:
1. In the GVG Disk Utility, expand the tree view to view the LUN containing the
replacement disk module.
2. Right-click the replacement disk icon in the tree view, then select Advanced | Force
Rebuild in the context menu. The rebuild process begins. You can verify this by
checking the drive status reported in the Disk Utility and the disk module LEDs.
On completion, the drive status changes from “rebuild” to “online”. You may need
to refresh the GVG Disk Utility display.