Vess R2000 SERIES, Product Manual

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423
Product Manual Manage with CLU
Grp (group) Rounding
– Uses an algorithm to determine truncation. Results in the max-
imum amount of usable drive capacity.
Table Rounding – Applies a predefined table to determine truncation.
• Highlight Host Cache Flushing and press the spacebar
to toggle between
Enable
and
Disable
.
For more information, see “Host Cache Flushing” on page 76.
• Highlight
Cache Flush Interval
and press the backspace key
to erase the current value. Type a new interval value.
The range is 1 to 12 seconds. For more information,
see “Cache Policy” on page 76.
• Highlight
SMART
and press the spacebar to toggle between
Enable
and
Disable
.
• Highlight SMART Poll Interval and press the backspace key to erase
the current value. Type a new interval value (1 to 1440 minutes).
• Highlight Poll Interval and press the backspace key to erase the
current value. Type a new interval value (15 to 255 seconds).
• Highlight Adaptive Writeback Cache and press the spacebar
to toggle between
Enabled
and
Disabled
.
For more information, see “Host Cache Flushing” on page 76.
• Highlight
Forced Read Ahead Cache
and press the spacebar
to toggle between
Enabled
and
Disabled
.
For more information, see “Forced Read-Ahead Cache” on page 76.
• Highlight HDD Power Saving and the spacebar to choose a time
period. After an HDD has been idle for a set period of time:
Power Saving Idle Time – Parks the read/write heads
Power Saving Standby Time – Lowers disk rotation speed
Power Saving Stopped Time – Spins down the disk (stops rotation)
You must also enable Power Management on the disk array. See “Creating a Disk Array
– Advanced (CLU)” on page 442 and “Enabling Media Patrol, PDM, Power Management -
Disk Array (CLU)” on page 447 .
6. Press Control-A to save your settings.
Notes
Power Management must be enabled on the disk array for the HDD Power
Saving settings to be effective. See “Making Disk Array Settings (CLU)” on
page 445.
Power management is limited to the features your HDDs actually support.