Avago Technologies MegaRAID Fast Path Software - Manual (Page 324)

Page 324 LSI Corporation Confidential | July 2011
MegaRAID SAS Software User Guide Chapter 7: MegaRAID Storage Manager Window and Menus | MegaRAID Storage Manager Main Menu
7.2.9.2 Set Virtual Drive
Properties
Follow these steps to set virtual drive properties.
1. Right click on virtual drive node in the logical view of the device tree.
2. Select Set Virtual Drive Properties.
The Set Virtual Drive Properties dialog appears, as shown in Figure 192 .
Figure 192: Virtual Drive Properties
NOTE: 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 is
Unchanged and can be set for only HDD drives.
7.2.10 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.