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two similar technologies on the same controller, within the same
enclosure, and in the same virtual drive.
Note:
LSI recommends that you carefully assess any decision to
mix SAS drives and SATA drives within the same virtual
drives. Although you can mix drives, LSI strongly
discourages the practice.
LSI offers a family of MegaRAID SAS RAID controllers addressing the
needs for both internal and external solutions. The MegaRAID 6Gb/s
SAS RAID controllers are based on the LSI first-to-market SAS IC
technology and proven MegaRAID technology. As second-generation
PCI Express RAID controllers, these controllers address the growing
demand for increased data throughput and scalability requirements
across midrange and enterprise-class server platforms. These controllers
provide:
• 6.0 Gb/s Serial Attached SCSI performance
• 3.0 Gb/s SATA II performance
• Eight-lane, 5-Gb/s PCI Express host interface
The SAS 9260DE-8i RAID controller and the SAS 9280DE-8i RAID
controller offer data security using disk encryption. This feature offers the
ability to encrypt data on drives and use disk-based key management to
provide data security. This solution provides data protection in the event
of theft or loss of physical drives. With self-encrypting drives, if you
remove a drive from its storage system or the server it is housed in, the
data on that drive is encrypted and useless to anyone who attempts to
access without the the appropriate security authorization.
For more information about self-encrypting drives, refer to the MegaRAID
SAS Software User’s Guide.
The SAS 9260 RAID controllers, the SAS 9261 RAID controller, and the
SAS 9280 RAID controllers use the LSI intelligent Battery Backup Unit
07 (LSIiBBU-07) to provide cached data protection and allow system
builders to protect cached data even during the most catastrophic system
failures.
Refer to the battery backup documentation on the MegaRAID Universal
Software Suite CD for more information about this battery backup unit.