Disaster recovery operations, Switching operations to the secondary site – HP StorageWorks XP Remote Web Console Software User Manual

Page 173

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Continuous Access XP Journal user guide 173

NOTE:

When the S-VOL is the file system managed by NAS Sync Image, delete the CIFS/NFS

shares under the differential-data snapshots using the

enas_nfsdelete

and

enas_cifsdelete

commands, unmount the differential-data snapshots using the

syncumount

command, and release

the differential-data storage devices using the

syncstop

command.

3.

At the secondary site, delete the S-VOL file system using the

enas_fsdelete

command.

4.

At the primary site, delete the Continuous Access XP Journal volume pair.

sudo pairsplit {-g group-name|-d volume-name} -S

5.

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

6.

At the primary site and the secondary site, stop RAID Manager XP.

sudo horcmshutdown.sh

(1-instance configuration)

sudo horcmshutdown.sh 16 17

(2-instance configuration)

NOTE:

If you start the split pair operation with offline backup, but you have not yet connected the target

file system to the NAS package at the secondary site, finish connecting the target file system to the NAS

package, and then start the previously described operations. If you start the split pair operation with online

backup, but you have not yet connected the target file system to the NAS package at the secondary site,

finish connecting the target file system to the NAS package, and then start the previously described

operations (see

Splitting Continuous Access XP Journal volume pairs

” on page 170).

To delete the Continuous Access XP Journal volume pair in a status other than PSUS status:

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 secondary site, release the device file used in the target file system.
• Non-LVM:

?sudo horc_svol_delete -d Device-file-number

• LVM:

?sudo horc_svol_vmdelete -d Device-file-number, ...

4.

At the primary and secondary sites, stop RAID Manager XP.

sudo horcmshutdown.sh

(1-instance configuration)

sudo horcmshutdown.sh 16 17

(2-instances configuration)

Disaster recovery operations

This section describes procedures for disaster recovery operations. You might also want to refer to

Settings for disaster recovery

” on page 168.

Switching operations to the secondary site

To recover data from a disaster:

1.

Execute SVOL-Takeover using the

horctakeover

command.

sudo horctakeover {-g group-name|-d volume-name} -t timeout-period

2.

Connect the target file system to the NAS package.

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