RAID Array 450 HSZ50 HSOF Software Version 5.7 for Compaq Tru64 UNIX Release Notes

Release Notes
AA–R1ZZE − TE Page 25
NOTE
The SAVE_CONFIGURATION switch should not be used when
upgrading your hardware, and will not perform inter-platform
conversions. For example, you cannot use the
SAVE_CONFIGURATION switch to upgrade an HSZ50 to an
HSZ70 Array Controller. Configuration information cannot be
retrieved from storagesets on other HSx controllers (for
example, HSD, HSJ, or prior HSOF software versions operating
on HSZ controllers).
NOTE
Compaq recommends that the
SAVE_CONFIGURATION
switch only be used for non-redundant (single) controller
configurations. To save the configuration information for dual-
redundant configurations, use the CLI command:
SET FAILOVER COPY=controller (see Paragraph 5.8.2).
5.8.1.1 Initializing Using the SAVE_CONFIGURATION Switch
When initializing a container using the SAVE_CONFIGURATION switch, the
controller copies the subsystem configuration to all members of the specified
container. If you use the switch for a multi-device container, (a stripeset for
example), the complete information is stored on each device in the container.
Be aware that a capacity reduction of 256 KB applies to each member of the
container being initialized using the SAVE_CONFIGURATION switch.
After initializing a container using the SAVE_CONFIGURATION switch, the
controller keeps the copy up-to-date. Each time you change the subsystem
configuration or add a patch to the HSOF software, the controller copies the
new configuration to all containers that were initialized with the
SAVE_CONFIGURATION switch.
Compaq does not recommend initializing all of your containers using the
SAVE_CONFIGURATION switch (initializing all of the containers causes too
many configuration-write operations). Too many write operations are
unnecessary and can adversely affect system performance.