HP XP7 Storage - Manual (Page 97)

NOTE: When the S-VOL is no longer paired, it cannot be distinguished it from a
non-Continuous Access Synchronous Z volume. Use the appropriate means to change the
S-VOL volume labels.
If necessary, use ICKDSF REFORMAT to change the labels (VOLSERs) of the S-VOLs.
6. Complete file recovery procedures.
7. Vary the S-VOLs online.
8. If an IPL of the remote host system is not required, bring the S-VOLs online. If an IPL is required:
1.
Remote copy SIMs must be cleared from the secondary systems before OS IPL. Contact
your service personnel to clear the SIMs.
2. Perform an IPL of the remote host system.
3. Wait until the IPL is complete, and then vary the S-VOLs online (if they did not come online
automatically).
9. At the remote site, start critical host operations, with the previous S-VOLs now the P-VOLs.
Procedure 34 To switch operations to the remote site by not deleting pairs
1. Record the pair status and fence level of each S-VOL.
2. Analyze the consistency of the S-VOLs, based on pair status and P-VOL fence level setting.
See
“Checking S-VOL consistency with the P-VOL” (page 97) .
3. Perform file recovery as needed.
4. Run the BCM YKSUSPND REVERSE.
5. Complete file recovery procedures.
6. Vary the S-VOLs online.
7. If an IPL of the remote host system is not required, bring the S-VOLs online. If an IPL is required:
1.
Remote copy SIMs must be cleared from the secondary systems before OS IPL. Contact
your service personnel to clear the SIMs.
2. Perform an IPL of the remote host system.
3. Wait until the IPL is complete, and then vary the S-VOLs online (if they did not come online
automatically).
8. At the remote site, start critical host operations, with the previous S-VOLs now the P-VOLs.
Checking S-VOL consistency with the P-VOL
An S-VOL's consistency refers to whether S-VOL data is identical to data in the P-VOL. This is
dependent on your Fence Level setting, which determines whether data is copied to the P-VOL if
an error occurs during an update to the S-VOL.
The following table shows S-VOL consistency information, based on Remote Web Console pair
status and the P-VOL fence level setting. (For the corresponding RAID Manager status names, see
“RAID Manager pair status names” (page 78) .)
Consistency of S-VOL Fence level Type S-VOL status
Not consistent. The S-VOL does not belong to a pair. Even if you have
created a pair using this volume, if the pair status is still unpaired, you
must regard its data as not consistent with the P-VOL. Data Status
Never -- Unpaired
Not consistent. The S-VOL is not synchronized because not all tracks
have been copied from the P-VOL yet. This S-VOL must be initialized
(or copied from the P-VOL at a later time). Data Status
Never -- Pending
Consistent. The S-VOL is synchronized with its P-VOL. Data Status -- Duplex
Needs to be analyzed*. The S-VOL requires further analysis to
determine its level of consistency. Never
Switching operations to the remote site 97