HP XP Racks - Manual (Page 92)

Because BC Z and Cnt Ac-S Z support PPRC, a failure to meet these requirements can result in a
PPRC command being run on a Cnt Ac-S Z pairs instead.
Perform Storage System Function commands and Business Copy Z
With Perform Storage System Function (PSF) commands, you can run PPRC commands and user
requests in the XP7 storage system.
The following table shows how PSF commands interact with BC Z pairs.
Interaction with BC Z pairs PSF commands
For more information about device pair status, see the following table. Device pair status
The differential bitmap format is different than Cnt Ac-S Z’s. Rate of synchronization
This PSF command is not available with BC Z pairs.
Shows information for the pair with an S-VOL that has the lowest LDEV ID. Primary volume with 2 or more S-VOLs
Active. Path status
If the volume is not part of a Cnt Ac-S Z pair, 1 is shown with Cnt Ac-S Z
information. Path number
PSF and DEVSERV command results and examples
The following table shows the PSF and DEVSERV command results.
DEVSERV Sense Subsystem Status PSF Read Subsystem Data Pair status
S-VOL P-VOL S-VOL P-VOL
PSEC-PNDG PPRI-PNDG PSEC-PNDG PPRI-PNDG PENDING
PSECONDRY PPRIMARY PSECONDRY PPRIMARY DUPLEX
PSEC-PNDG PPRI-PNDG PSEC-PNDG PPRI-PNDG SP-Pend/TRANS
Unpaired PPRI-SUSP PSEC-SUSP PPRI-SUSP V-Split/SUSPVS
Unpaired PPRI-SUSP PSEC-SUSP PPRI-SUSP Split/SUSPOP
PSEC-SUSP PPRI-SUSP PSEC-SUSP PPRI-SUSP Suspend/SUSPER
PSEC-PNDG PPRI-PNDG PSEC-PNDG PPRI-PNDG Resync/PENDING
Note: PPRIMARY and PSECONDRY indicate that the volume status is “DUPLEX”.
The following image shows an example of the DEVSERV command:
Creating pairs with CESTPAIR and PPRCOPY ESTPAIR
Prerequisite: The S-VOL must be offline.
•
Run the one of the following commands to the P-VOL:
•
(For PPRC) CESTPAIR
•
(For PPRCOPY) PPRCOPY ESTPAIR
92 Business Copy Z pair user tasks using IBM PPRC