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HSG80 Array Controller V8.7 Command Line Interface Reference Guide
CLI Command Descriptions
Remote-node-name is the name of the controller pair that controls the unit that is
to be added. 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 added to the remote copy set.
ERROR_MODE=FAILSAFE
ERROR_MODE=NORMAL (default)
Two options are available:
•
ERROR_MODE=FAILSAFE enables failsafe lock mode for the members of
the remote copy. Failsafe lock is a condition the members of the remote copy
set assume under certain potentially catastrophic error conditions. The failsafe
lock condition disables access to the remote copy set members.
•
ERROR_MODE=NORMAL allows write operations to continue even when an
error condition is present.
INITIATOR=initiator-unit-name
Moves the role of initiator to the specified target member.
NOTE: This command is part of the site failover procedure. Use of this switch is restricted to
only site failover conditions. Refer to the StorageWorks by Compaq Data Replication Manager
HSG80 ACS Version 8.7P Operations Guide for examples of usage.
OPERATION_MODE=SYNCHRONOUS (default)
OPERATION_MODE=ASYNCHRONOUS
This switch 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)
This switch 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: