Avago Technologies MegaRAID SAS 8204ELP - Manual (Page 76)

3-26 MegaRAID SAS RAID Controller Characteristics
Copyright © 2005-2007 by LSI Logic Corporation. All rights reserved.
3.3.3 Fault Tolerance
Table 3.12 shows the fault tolerance features for the MegaRAID 1068-
based SAS RAID controllers.
Table 3.12 Fault Tolerance Features
Specification MegaRAID SAS 8308ELP, MegaRAID SAS
8300XLP, MegaRAID SAS 8344ELP,
MegaRAID SAS 8304ELP, MegaRAID SAS
8408E, MegaRAID SAS 8480E, and
MegaRAID SAS 84016E RAID Controllers
Support for SMART
1
1. The Self Monitoring Analysis and Reporting Technology (SMART) detects
up to 70 percent of all predictable disk drive failures. In addition, SMART
monitors the internal performance of all motors, heads, and drive
electronics.
Yes
Optional battery backup for
cache memory SAS 8304ELP RAID controller, SAS 8308ELP
RAID controller, SAS 8344ELP RAID
controller, and SAS 84016E RAID controller:
- LSIiBBU01 battery backup.
<3.6V/880mAH battery pack; up to 72
hours of data retention for 128 Mbytes
SAS 8408E and SAS 8480E RAID controllers:
- LSIiTBBU02 battery backup.
4.8V/880mAH battery pack; up to 72 hours
of data retention for 256 Mbytes
Drive failure detection Automatic
Drive rebuild using hot spares Automatic
Parity generation and checking Yes