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Galaxy 65 User Guide
204
G.7 Locking the Cache Setting
You can prevent host systems from using SCSI mode-select commands to change the Galaxy 65
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.