Asus DS300j G2 Series User Manual page 136

• Highlight DMA Mode and press the spacebar to toggle through UDMA 0 to 6 and MDMA 0 to 2.
For SAS drives:
• Highlight Write Cache and press the spacebar to toggle between Enabled and Disabled .
• Highlight Read Look Ahead Cache and press the spacebar to toggle between Enabled and Disabled .
• Highlight CmdQueuing and press the spacebar to toggle between Enabled and Disabled .
• Highlight MediumErrorThreshold and press the backspace key to
remove the current value, then type a new smaller value.
See the comments below.
• Highlight Read Cache and press the spacebar to toggle between Enabled and Disabled .
4. Press Control-A to save your settings.
See "Viewing Physical Drive Information" below to determine which functions your physical drives
support.
Medium Error Threshold is the number of bad blocks tolerated before the controller marks the drive as
Dead. The default setting is 64 blocks. A setting of zero disables the function. When disabled, no drives are
marked offline even when errors are detected.
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To view information about a physical drive:
1. From the Main Menu, highlight Physical Drive Management and press Enter .
2. Highlight the physical drive you want and press Enter .
Basic information displays.
3. Highlight Advanced Information and press Enter .
Advanced information displays.
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To view the statistics for the selected physical drive:
1. From the Main Menu, highlight Physical Drive Management and press Enter .
2. Highlight the physical drive you want and press Enter .
3. Highlight Physical Drive Statistics and press Enter .
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leAring tAtistics
To clear physical drive statistics, see "Clearing Statistics (CLU)" on page 167.
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ettInG an lIaS
An alias is optional. To set an Alias for a physical drive:
1. From the Main Menu, highlight Physical Drive Management and press Enter .
2. Highlight the physical drive you want and press Enter .
3. Type an alias into the field provided.
Maximum of 32 characters. Use letters, numbers, space between words and underscore.
4. Press Control-A to save your settings.
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learInG tale anD onDItIonS
The Clear Stale and Clear PFA functions only appear when those conditions exist on the physical drive. To clear
a Stale or PFA condition on a physical drive:
1. From the Main Menu, highlight Physical Drive Management and press Enter .
2. Highlight the physical drive you want and press Enter .
3. Highlight Clear Stale or Clear PFA and press Enter .
If a physical drive is still online and shows a PFA error but "Clear PFA" does not appear, use PDM to copy
the data to a new physical drive. See "Running PDM on a Disk Array" on page 136.
If a physical drive is offline and shows a PFA error, rebuild the disk array. See "Rebuilding a Disk Array"
DS300f G2 Series User Manual
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