HP StorageWorks XP Remote Web Console Software - Manual (Page 171)

Continuous Access XP Journal user guide 171
NOTE: When the S-VOL is the file system managed by NAS/Sync Image, mount the
differential-data snapshots using the
syncmount
command, and create the CIFS/NFS shares using
the
enas_nfscreate
and
enas_cifscreate
commands, if necessary.
11. At the secondary site, start the program that accesses the S-VOL.
Online backup
To split the Continuous Access XP Journal volume pair with online backup:
1. At the primary site, prevent NAS Sync Image from performing operations on the P-VOL, hold the write
request to the P-VOL, and write the unapplied data to the disk.
sudo horc_pvol_freeze -f Source-file-system-name
2. At the primary site, split the Continuous Access XP Journal volume pair.
sudo pairsplit {-g group-name|-d volume-name} -rw
3. At the primary site, verify that the Continuous Access XP Journal volume pair has been split.
sudo pairvolchk {-g group-name|-d volume-name}
NOTE: You can also use the
pairevtwait
command, which waits for the pair to be split (PSUS).
pairvolchk : Volstat is P-VOL.[status = COPY] => Splitting
pairvolchk : Volstat is P-VOL.[status = PSUS] => Split completes
4. At the primary site, permit the write request to the P-VOL, and enable the operations from NAS Sync
Image on the P-VOL.
sudo horc_pvol_unfreeze -f Source-file-system-name
5. At the secondary site, connect the target file system to the NAS package.
• Non-LVM:
sudo horc_svol_import -f Target-file-system-name -d Device-file-number
• LVM:
sudo horc_svol_vmimport -f Target-file-system-name -d
Device-file-number, ...
6. At the secondary site, mount the S-VOL using the
enas_fsmount
command.
7. Create a shared directory using the
enas_dircreate
command, or change the attributes of a
shared directory using the
enas_diredit
command.
8. Create CIFS/NFS shares using the
enas_nfscreate
and
enas_cifscreate
command.s
NOTE: When the S-VOL is the file system managed by NAS Sync Image, mount the
differential-data snapshots using the
syncmount
command, and create the CIFS/NFS shares using
the
enas_nfscreate
and
enas_cifscreate
commands, if necessary.
9. At the secondary site, start the program that accesses the S-VOL.
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.