HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Command Line Interface Reference Guide (EK-G80CL-RA. C01, March 2005)

CLI Command Descriptions
233HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Command Line Interface Reference Guide
OPERATION_MODE=SYNCHRONOUS (default)
OPERATION_MODE=ASYNCHRONOUS
Determines which of two normal operating modes is assigned to the remote
copy set.
■ In Synchronous mode, write operations must be written to the target
cache before the host is informed that the operation is complete.
Synchronous operation assures data consistency among the members of a
remote copy set.
■ In Asynchronous mode, the write operation is reported as complete to the
host before the data is written to the remote units of the remote copy set.
Asynchronous mode provides greater performance and response time, but
the data on all members of the remote copy set cannot be assumed to be
always the same.
OUTSTANDING_IOS=n (1 to 240; default is 200)
Sets the number of outstanding I/O operations from the initiator to the target.
The way this switch operates depends on which operating mode is set by the
OPERATION_MODE switch:
■ In Synchronous mode, OUTSTANDING_IOS refers to the number of
remote writes (write operations from the initiator to the target) that can be
outstanding.
■ In Asynchronous mode, OUTSTANDING_IOS refers to the number of
write operations that can be reported as completed to the host before they
are written on all the members of the remote copy set.
REMOVE=remote-node-name/target-unit-name
Removes a unit from an existing remote copy set.
Remote-node-name is the name of the controller pair that controls the unit
that is to be removed. This name is assigned through the REMOTE_COPY
switch of the SET controller command.
Target-unit-name is the name of the unit to be removed from the
remote copy set.