Locking The Cache Setting - Impediment RS-1600-X24 User Manual

G.7 Locking the Cache Setting
You can prevent host systems from using SCSI mode-select commands to change the X24 Subsystem's
write-back cache setting. Some operating systems disable write cache. If cache lock is enabled, the host
cannot modify the cache setting. The default setting is disabled.
This option is useful in some environments where the host system disables the SM module's write-back
cache, resulting in degraded performance. A change to this setting on either SM module is automatically
updated on the other SM module.
To lock the cache setting:
1 From the System Menu, select Configuration Menu and press Enter.
The Configuration Menu displays.
2 Select Option Configuration and press Enter.
The Option Configuration screen displays.
3 Select Cache Lock and press Enter.
The Cache Lock screen displays. The current setting is marked with an * next to it.
Configuring X24
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