Splitting Pairs With Csuspend And Pprcopy Suspend; Csuspend Parameters And Examples - HP XP7 User Manual

Parameters
ONLINSEC*
* Not specifying and specifying NO for this parameter has the same effect.
The following image shows an example of the PPRCOPY ESTPAIR PPRCOPY command:

Splitting pairs with CSUSPEND and PPRCOPY SUSPEND

The P-VOL and its associated S-VOLs for pairs in "DUPLEX" status are typically not identical since
update copy operations are asynchronous.
Splitting the pair allows the host access to the S-VOL. If the pair is not split ("Split/SUSPOP" status),
the host can access the non-reserved S-VOL. You cannot access reserved volumes that are unpaired.
Prerequisite: The volumes must be paired or you have performed Quick Resync on the pair ("DUPLEX"
status).
• Issue one of the following commands to the P-VOL:
(For PPRC) CSUSPEND
For more information about the parameters and examples for using this command to split
pairs, see
(For PPRCOPY) PPRCOPY SUSPEND
For more information about the parameters and examples for using this command to split
pairs, see

CSUSPEND parameters and examples

The following table describes the CSUSPEND PPRC command parameters used to split pairs.
Parameter
DEVN
PRIM
SEC
PRIMARY
* If you are copying the pair ("PENDING" status), Quick Split can end abnormally (reporting CC = 12). If this occurs,
wait until the copy operation ends. For more information about the prerequisites for Quick Split, see
methods" (page
The following image shows an example of running the CSUSPEND PPRC command:
Value
YES
NO
"CSUSPEND parameters and examples" (page
"PPRCOPY SUSPEND parameters and examples" (page
Value
Device number
Primary volume: SSID, serial number, channel
connection address, and CU number.
You can set MPS00 or MAnn0 instead of a
serial number.
Note: nn is a CTG ID.
Secondary volume: SSID, serial number,
channel connection address, and CU number.
Not Applicable
49).
Description
The pair is created whether the S-VOL is online
or not.
If the S-VOL is online, the pair is not created.
93).
Description
NA
MPS00 is used for a steady split request.
Use MAnn0 to Quick Split all pairs in a CG.
If you set parameters other than the serial number,
MPS00 or MAnn0, the command is rejected.
NA
Not used by BC Z.
Splitting pairs with CSUSPEND and PPRCOPY SUSPEND
94).
"Pair splitting
93