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Table 3-5
summarizes the values for the /write_cache_enable
and /unprotected switches:
/write_cache_enable
Switch Setting
FALSE
FALSE
TRUE
TRUE
Examples
Before setting cache parameters for a specific array, use the
container list command to obtain information about any
existing arrays.
As the following example shows, there is an array 0 (a volume set)
on this controller with no file system on it (as evidenced by None
displayed in the Usage column):
AAC0>container list
Executing: container list
Num
Dr Label Type
-- ----- ------ ------ --- ------ ------- ------ -------------
0
Volume 15.0MB
Table 3-5 Switch Values and Results
/unprotected
Switch Setting
FALSE
TRUE
FALSE
TRUE
Total
Oth Stripe
Size
Ctr Size
Result
NVRAM write-back cache
The
setting for the specified array is
disabled.
Not allowed. An appropriate error
message displays.
NVRAM write-back cache
The
setting for the specified array is
enabled when protected. This means
the controller enables the array's
NVRAM write-back cache
if a battery is present and its status is
OK.
NVRAM write-back cache
The
setting for the specified array is
enabled always. This means the
controller forces the enabling of the
NVRAM write-back
array's
cache
even if write data could be
lost due to no battery or a bad
battery.
Scsi
Usage
C:ID:L Offset:Size
None
0:02:0 64.0KB:
container Commands
only
Partition
15.0MB
3-93
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