User`s guide

SET THIS_CONTROLLER
• Write-back caching automatically resumes when the cache batteries are fully
recharged or replaced.
CAUTION
There is some risk in setting CACHE_POLICY=B to allow access to
mirrorsets and RAIDsets when the batteries are low. Because the
batteries may be in an unknown state, there is no guarantee as to how
long they will maintain data in the cache if a power failure occurs. Fully
charged batteries will maintain the data for a minimum of 100 hours.
ID=( n1[,nN] )
Specifies from one to four SCSI target IDs (0–7). If two or more target IDs are
specified, they must be enclosed in parenthesis and separated by a comma.
Note
The unit number determines which target the LUN will be available
under. For example, D203 would be target 2, LUN 3. D500 would be
target 5, LUN 0. D5 would be target 0, LUN 5.
If two HSZ controllers are in a dual-redundant configuration, each controller will
have the same IDs. When you change the IDs on one controller, the other will
automatically be updated.
PREFERRED_ID=( n1[,nN] )
NOPREFERRED_ID
In a dual-redundant configuration, PREFERRED_ID defines which targets will
be handled by the specified controller. If two or more PREFERRED_IDs are
specified, they must be enclosed in parenthesis and separated by a comma. The
only PREFERRED_IDs that can be specified must have already been configured
using the ID= qualifier.
For example, if you configured a HSZ with IDs 0, 1, and 2, you could specify
preferred ids 0, 1, and 2 in any combination on the two controllers. If one
controller had preferred ids 0 and 1, it would handle unit numbers 0–7 and
100–107 and the other controller would handle unit numbers 200–207.
When you change the PREFERRED_IDs on one controller, the other controller
will be automatically be updated to support the remaining (if any) IDs.
By specifying NOPREFERRED_ID the controller does not respond to any
target ID on the host’s SCSI bus. However, in a dual-redundant mode, if the
controller with PREFERRED_IDs specified were to fail, the controller with
NOPREFERRED_ID would pick up the targets of the failed controller.
PROMPT=" new prompt "
Specifies a 1- to 16-character prompt enclosed in quotes that will be displayed
when the controller’s CLI prompts for input. Only printable ASCII characters are
valid.
When first installed, the CLI prompt is set to the first three letters of the
controller’s model number (for example, HSJ>, HSD> or HSZ>).
B–80 Command Line Interpreter