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

Using PPRC Commands for TrueCopy for z/OS A-31
Hitachi Universal Storage Platform V TrueCopy for IBM z/OS User’s Guide
• Mode 104 (3990 only): Mode 104 changes the default FREEZE option to
enabled. This mode should be enabled when CGROUP is being used in the
GDPS environment. When mode 104 is enabled, the FREEZE option will
remain enabled after USP V is powered off and then back on (e.g., due to
some disaster). When mode 104 is not enabled, the FREEZE option will revert
to the default value of disabled after USP V is powered off and back on.
Note: For operations in a GDPS environment, mode 104 must be ON.
Note: Mode 104 is invalid for 2105 and 2107 emulation.
Note: For further information on the USP V system option modes related to
TCz operations, please refer to Table 2-2.