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

6-30 Performing TrueCopy for z/OS Pair Operations
Hitachi Universal Storage Platform V TrueCopy for IBM z/OS User’s Guide
• Force: allows you to override the restrictions on releasing a TCz pair. If this
option is selected, the pair(s) will be released even if the MCU is unable to
communicate with the RCU. This option may be used to free a host waiting
for device-end from an MCU which cannot communicate with its RCU, thus
allowing host operations to continue. If this option is not selected, the pair(s)
will only be released if the MCU is able to change the pair status of the M-VOL
and R-VOL to Simplex. When the status of the pair(s) to be released is
Simplex or Deleting, the default setting is Force (cannot be changed).
Otherwise, the default setting is Normal.