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Figure 118
You cannot select the Disk cache policy for the virtual drives having only SSD drives or a mix of
SSD and HDD during VD creation. The value of the Disk Cache Policy will be "Unchanged" and
can be set for only HDD drives.
Non-SED Secure Erase Support
This section describes the firmware changes required to securely erase data on non-SEDs
(normal HDDs).
SEDs securely erase their internal encryption keys, effectively destroying all of the data present
on the drive. For Non–SED drives, the erase operation consists of a series of write operations to
a drive that overwrites every user-accessible sector of the drive with specified patterns. It can be
repeated in multiple passes using different data patterns for enhanced security. The sanitization
technique is more secure than a simple format operation and is commonly called a "clearing"
operation, similar to the existing physical drive clear command.
Follow these steps to set physical drive properties.
1. In the Physical view, right click the Physical Drive node.
2. Select the Drive Erase option.
The Mode Selection - Drive Erase dialog appears, as shown in the following figure.
Using the MegaRAID Advanced Software
DB09-000202-05 37857-02
Rev. F - May 2011
Virtual Drive Properties
Copyright © 2011 by LSI Corporation. All rights reserved.
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