HP XP Continuous Access Software - Manual (Page 205)

Resynchronizing Continuous Access XP Journal volume pairs
You must delete the target file system using the enas_fsdelete command before resynchronizing the
volume pair. Deleting the target file system, however, clears only the file system's management area.
Resynchronizing the volume pair is not the same as performing an initial copy.
NOTE:
When the S-VOL is the file system managed by NAS Sync Image, unmount the differential-data
snapshots, and release the differential-data storage devices before using the enas_fsdelete command.
To resynchronize the Continuous Access XP Journal volume pair:
1. At the secondary site, reserve the device file to be used as a target file system
• Non-LVM:
?sudo horc_svol_define -d Device-file-number
• LVM:
?sudo horc_svol_vmdefine -d Device-file-number, ...
2. At the primary site, resume the Continuous Access XP Journal volume pair.
sudo pairresync {-g group name|-d volume name}
3. At the primary site, verify that the Continuous Access XP Journal volume pair has been resumed.
sudo pairvolchk {-g group name|-d volume name}
NOTE:
You can also use the pairevtwait command, which waits for the volumes to be paired.
pairvolchk: Volstat is P-VOL.[status = COPY] => Resuming
pairvolchk: Volstat is P-VOL.[status = PAIR] => Resuming completes
Deleting Continuous Access XP Journal volume pairs
Completing Continuous Access XP Journal operations by deleting the Continuous Access XP Journal
volume pair in PSUS status differs depending upon whether you will continue using the file system in
the S-VOL or if you will destroy the file system.
When deleting the Continuous Access XP Journal volume pair in a status other than PSUS, you cannot use
that file system because the consistency of data in the S-VOL is not guaranteed.
To delete the Continuous Access XP Journal volume pair in PSUS status and continue using the S-VOL
file system:
1. At the primary site, delete the Continuous Access XP Journal volume pair.
sudo pairsplit {-g group name|-d volume name} -S
2. At the primary site, verify that the Continuous Access XP Journal volume pair has been deleted.
sudo pairvolchk {-g group name|-d volume name}
pairvolchk: Volstat is P-VOL.[status = COPY] => Deleting
pairvolchk: Volstat is P-VOL.[status = SMPL] => Deleted
3. At the primary and secondary sites, stop RAID Manager XP.
sudo horcmshutdown.sh (1-instance configuration)
sudo horcmshutdown.sh 16 17 (2-instance configuration)
Continuous Access XP Journal user guide 205