Task Summary For Raid Splitting - Nortel CallPilot 703t Maintenance And Diagnostics

January 2007

Task summary for RAID splitting

Note: Use this summary only after reviewing the more detailed procedures and warnings in this chapter
What to do
Ensure that your
system is fully
working and the RAID
hardware is properly
configured.
Full data backup
RAID splitting
Note: Because the 703t
has only one physical
drive per channel, the
RAID splitting can be
done using the
Windows MegaRAID
console without risk of
CallPilot database
corruption.
Perform CallPilot
software upgrade
RAID synchronizing
for upgrade
successful
RAID synchronizing
for upgrade NOT
successful
703t Server Maintenance and Diagnostics
How to do it
The most important thing to verify is that the RAID channel 1 is connected to the first hard
drive (top as facing the machine) and channel 2 is connected to the second drive (bottom).
Open the lid and follow the cables or remove one hard drive and observe which drive is
marked dead by the system. If the drive matches the graphic location on the Windows
MegaRAID console, proceed with the next step.
Do a full data backup before RAID splitting is performed as an extra precaution.
1 Load the Windows MegaRAID console. Ensure all drives are in ONLINE state
(GREEN).
2 Right click the Channel 2 first drive (i.e (0) A1-2-Onln).
Select Tools ➝ Fail Drive. A warning message will pop-up. Ignore it and press OK. The
drive status will change to FAILED and the color of the icon should change to RED. The
alarm should start beeping.
Note: The alarm can be silenced, but under no circumstances should it be disabled.
Select Adapter ➝ Alarm Control ➝ Silence Alarm.
Technically the drive that is marked FAILED is now the Backup Drive.
Let the system boot. The system will still run after Channel 2 of the RAID card was taken
out of service and will boot to Windows. Perform the software upgrade.
WITHOUT shutting down the server, in the Physical Devices section of the MegaRAID
console, right click the Channel 2 first drive (i.e Channel 2 (0) A1-2-Failed). From the right
mouse pop-up menu select Rebuild. When Rebuild is done, the drive status will change to
ONLINE and the color of the icon should change to green. The alarm should stop beeping
unless it was temporarily silenced. The process can take up to one hour. DO NOT shut
down the machine before the rebuild is complete. If you do reboot or power down during
this process, you need to do 'RAID synchronizing for upgrade NOT successful', then start
again. You can monitor the rebuild by opening the Windows MegaRAID console.
If the software upgrade has failed, the system needs to be returned to the original
configuration.
1 Restart the server and enter the Ctrl+M utility.
2 Select Objects ➝ Physical Drive ➝ FAIL Drive for the drive on Channel 1.The drive will
show as FAIL after this step.
3 Select the drive on Channel 2 (previously taken offline or the Backup drive) and make it
ONLINE. Ignore the warning message.
At this point the drive on the Channel 2 is ONLINE and the one on Channel 1 is marked
FAILED.
4 Exit the utility and reboot. The system will boot up to the original configuration before the
software upgrade and an audible alarm will indicate the state CRITICAL for the drives. At
this time, you can silence the alarm but DO NOT disable it.
5 Once the system is fully operational, open the Windows MegaRAID console and rebuild
the FAIL drive on Channel 1 using the same process indicated in "RAID synchronizing for
upgrade successful". Reverting to original from a failed software upgrade is now complete.
The audible alarm, if left on, should automatically stop.
RAID operations
.
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