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
177HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Command Line Interface Reference Guide
Caution: After the command is entered, a header is immediately written to
the log unit, which can make it difficult or impossible to recover any user data
previously written on the unit. Care should be taken in specifying which unit
should be the log unit.
The log unit must be either a mirrorset or a striped mirrorset. It cannot be
a partitioned unit. The log unit must reside at the initiator site and cannot
be moved to the target site. In addition, it must have the following
characteristics:
— Writeback caching disabled
— Access disabled
— Other unit settings at default
This switch is valid only if all members of the association set are in
Normal (not Failsafe) Error mode. Error mode is determined by the
ERROR_MODE switch of the
SET association-set-name
command.
■ Specify NOLOG_UNIT to deassign the log unit.
ORDER_ALL
NOORDER_ALL
Determines how write operations are carried out for association sets.
■ Specify ORDER_ALL to create the following outcome:
— If one member of the association set is defaulted with write history
logging, all members of the association set start logging write
operation history.
— The order of all asynchronous write operations across all members of
the association set is preserved.
■ Specify NOORDER_ALL to create the following outcome:
— Members of the association set start to log (or not) independently.
— The order of all asynchronous write operations across all members of
the association set is not preserved.