HP XP7 Continuous Access Synchronous for Mainframe Systems User Guide (TK911-96003)

• After reestablishing the MCU-RCU path that was blocked, use CDELPAIR to release the pairs
split by CGROUP/FREEZE. If CDELPAIR is issued to a pair whose MCU-RCU path is still
blocked, the MCU rejects the command (F/M=0F, Cnt Ac-S Z reason code=5A).
• Use CRECOVER to change a split S-VOL to simplex. This command is issued to the S-VOL and
does not affect the split P-VOL.
• Use CQUERY to generate output about paths and volumes after running CGROUP FREEZE/RUN.
See the next section for examples.
Example output for CQUERY
The following examples show output for CQUERY - PATHS/VOLUMES after CGROUP FREEZE
has run. Output is for illustration only and should not be used.
CQUERY - PATHS
The following figure shows example output when CQUERY is issued to an MCU to which
CGROUP/FREEZE was issued.
The following figure shows example output when CQUERY is issued to the RCU that has a blocked
path due to the CGROUP/FREEZE command.
CQUERY - VOLUME
The following figure provides example output when CQUERY is issued to an P-VOL that has been
split by CGROUP/FREEZE. The output also shows the status of the FREEZE option: CGRPLB(YES)
= enabled, CGRPLB(NO) = disabled.
NOTE: The values for WWNN and LIC LEVEL in this figure and the next are invalid. Do not use
the values.
I/O control after failure—with CGROUP FREEZE/RUN 125