User manual

WebPAM User Manual
74
same time as the hard disk. If the same data is needed right away, it is
sent from the cache, speeding up read performance.
Enable Write Back — Check the box to enable the Write Back Cache.
The Write Back Cache stores data momentarily before it is written to the
hard disk. The action speeds up disk write performance but adds a risk
of lost data in the event of a power failure. Applies to UltraTrak only.
Automatic Flush Frequency — Specify the frequency of Cache flushes
from 0 to 59 seconds.
Click the Submit button to save your settings. A confirmation window
appears.
Figure 98. This window confirms changes made to the Controller
settings.
For a change of Disk Cache setting on an UltraTrak, the following
message appears:
Click Yes to restart the UltraTrak automatically.
For a change of Disk Cache setting on a SuperTrak, the following
message appears:
Click OK to close the message. You must manually restart the Host
(RAID PC) computer.