HP XP P9500 Storage - Manual (Page 188)

The raidscan-find sync command flushes the system buffer through finding a logical drive
corresponding to a group of the configuration file, without using the -x mount and -x umount
commands. The following examples are for group ORB.
S-VOL Side P-VOL Side
Close all logical drives on the P-VOL by application. • Back up the S-VOL data.
• Flush the system buffer for P-VOL using raidscan -pi
$LETALL -find sync -g ORB. •
Flush the system buffer for S-VOL updates using raidscan
-pi $LETALL -find sync -g ORB when the backup is finished.
•
Split the paired volume using pairsplit -g ORB with
r/w mode.
• Open all logical drives on the P-VOL by application.
•
Resynchronize the paired volume using pairresync
-g ORB.
Online backup using raidscan-find sync for Windows NT file system:
The raidscan-find sync command flushes the system buffer through finding a logical drive
corresponding to a group of the configuration file, without using the -x mount and -x umount
commands. The following examples are for group ORB.
S-VOL Side P-VOL Side
Freeze DB on opening P-VOL by application. •
Back up the S-VOL data.
•
Flush the system buffer for P-VOL using the
raidscan -pi $LETALL -find sync -g ORB. • Flush the system buffer for S-VOL updates using raidscan -pi
$LETALL -find sync -g ORB when the backup is finished.
•
Splits the paired volume using pairsplit -g ORB
with r/w mode.
•
Unfreeze DB on opening P-VOL by application.
• Resynchronize the paired volume using pairresync
-g ORB.
NOTE:
•
P-VOL side must stop the WRITE IO to the logical drive corresponding to a [-g name] before
issuing the raidscan -find sync command.
•
S-VOL side must close the logical drive corresponding to a [-g name] before issuing the
raidscan -find sync
command.
Special facilities for Windows systems
RAID Manager provides the following special facilities for Windows systems:
•
Signature changing facility for Windows systems (page 188)
•
GPT disk for Windows (page 191)
Signature changing facility for Windows systems
Consider the following Microsoft Cluster Server (MSCS) configuration in which a MSCS P-VOL is
shared from MSCS Node1 and Node2, and the copied volume of S-VOL is used for backup on
Node2. If the Node2 has reboot on standby state, then MSCS of Node2 has a problem to assign
drive letter of S-VOL with previous P-VOL drive letter. This problem will happen on Node2 on MSCS
environment as shown in the following figure. The conditions are:
•
Node1 is active.
•
Node2 is standby state where P-VOL on Node2 is hidden by MSCS, and reboots the Node2.
188 Examples of using RAID Manager commands