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Power Save Mode - SSD Drives
If you select the Max mode or the Max without cache mode in the Select power save mode field
in the above displayed figure, select one or more SSD drives, and then click Create Drive Group,
a confirmation dialog appears. The dialog states that the Max mode and the Max without cache
mode cannot be used for SSD drives and that Controller Defined will be selected as the power
save mode.
Changing Virtual Drive Properties
Warning:
Note:
You can change a virtual drive's Read Policy, Write Policy, and other properties at any time after
the drive is created. To do this change, follow these steps:
1. Select a virtual drive icon in the Physical tab or the Logical tab in the left panel of the
MegaRAID Storage Manager main menu screen.
2. Select Go To->Virtual Drive->Set Virtual Drive Properties from the menu bar.
The Set Virtual Drive Properties dialog box appears.
3. Change the Disk Cache Policy in the drop-down menu.
The options are Unchanged (unchanged from whatever the current cache policy is), Enabled,
and Disabled.
4. Click OK to accept the changes.
Changing a Virtual Drive Configuration
You can use the Modify Drive Group Wizard in the MegaRAID Storage Manager software to
change the configuration of a virtual drive by adding drives to the virtual drive, removing drives
from it, or changing its RAID level.
Caution:
Note:
Accessing the Modify Drive Group Wizard
Note:
Perform the following steps to access the Modify Drive Group Wizard options:
1. Click the Logical tab in the left panel of the MegaRAID Storage Manager main menu screen.
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Configuration
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Rev. F - May 2011
Do not enable drive caching on a mirrored drive group (RAID 1 or RAID 1E). If you
do, data can be corrupted or lost in the event of a sudden power loss. A warning
appears if you try to enable drive caching for a mirrored drive group.
For virtual drives with SAS drives only, set the drive write cache policy set to
Disabled, by default. For virtual drives with SATA drives only, set the drive write
cache policy to Enabled, by default.
Be sure to back up the data on the virtual drive before you change its configuration.
You cannot change the configuration of a RAID 10, or RAID 50, or RAID 60 virtual
drive. You cannot change a RAID 0, RAID 1, RAID 5, or RAID 6 configuration if two
or more virtual drives are defined on a single drive group. (The Logical tab shows
which drive groups and drives are used by each virtual drive.)
The Modify Drive Group Wizard was previously known as the Reconstruction
Wizard.
Copyright © 2011 by LSI Corporation. All rights reserved.
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