Hitachi TrueCopy for IBM z/OS User and Reference Guide (T5211-96001, June 2007)

7-8 TrueCopy for z/OS Usage Scenarios
Hitachi Universal Storage Platform V TrueCopy for IBM z/OS User’s Guide
CSUSPEND/QUIESCE TSO Command
Please refer to IBM documents SG24-2595, SC35-0355, and SC35-0169 for
important information on the optional QUIESCE parameter for the CSUSPEND
TSO command.
WARNING: The QUIESCE option of the CSUSPEND command has been
disabled by APAR OW15247 or APAR OW15248. Refer to either of these APARs
and the latest IBM PPRC documentation for detailed information on the
QUIESCE option of the CSUSPEND command. Please check with your Hitachi
account team before using the CSUSPEND command with the QUIESCE option
to suspend TCz pairs on USP V storage systems. If the CSUSPEND command
with the QUIESCE option is issued to certain volumes (e.g., active SPOOL,
PAGE, or CATALOG datasets, active SYSRES volume), the attached host(s)
may enter a deadlock condition and may require a storage control IML to
correct the condition. TCzA does not support the CSUSPEND/QUIESCE option.
IEA494I System Console Message
The IEA494I message is recommended as a trigger for automation over the
IEA491E message, because the IEA494I message is reported to all attached
MVS hosts each time the M-VOL pair status changes, whereas the IEA491E
message is reported to only one host system.