
VTrak E-Class Product Manual
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• Enter a time interval in the Enclosure Polling Interval field.
The range is 15 to 255 seconds.
• Check the Adaptive Writeback Cache box to enable the Adaptive
Writeback Cache feature.
For more information, see “Adaptive Writeback Cache” on page 289.
• Check the Host Cache Flushing box to enable the Host Cache Flushing
feature.
For more information, see “Host Cache Flushing” on page 290.
• Check the Forced Read Ahead Cache box to enable the Forced Read
Ahead Cache feature.
For more information, see “Forced Read Ahead Cache” on page 290.
6. Click the Submit button.
The changes take effect immediately.
Clearing an Orphan Watermark
An Orphan Watermark condition is the result of a disk drive failure during an
NVRAM RAID level migration on a disk array.
To clear an Orphan Watermark:
1. Click the Subsystem icon in Tree View.
2. Click the Controllers icon.
3. Click the Controller icon.
4. Click the Clear tab in Management View.
5. Click the Submit button.
The changes take effect immediately. If your subsystem has two controllers,
clearing a condition on one controller will automatically apply to the other
controller.
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