Avago Technologies MegaRAID SCSI 320-0 (520-0 CH) - Manual (Page 56)

3-16 MegaRAID 320 Storage Adapter Characteristics
Copyright © 2003-2008 by LSI Corporation. All rights reserved.
3.3.3 Fault Tolerance
Table 3.9 shows the MegaRAID 320 fault tolerance features.
Table 3.9 MegaRAID 320 Fault Tolerance Features
Specification
MegaRAID
320-1 MegaRAID
320-2 MegaRAID
320-2E MegaRAID
320-2X MegaRAID
320-4X
Support for
SMART
1
Yes Yes Yes Yes Yes
Optional Battery
Backup for
Cache Memory 3.6 V/600mAH
battery pack.
Up to 48 hours
of data
retention for
64 MB. 3.6 V/600mAH
battery pack.
Up to 24 hours
of data
retention for
128 MB. 4.8 V/880mAH
battery pack.
Up to 72 hours
of data
retention for
128 MB. 3.6 V/650mAH
battery pack.
Up to 24 hours
of data
retention for
256 MB. 3.6 V/650mAH
battery pack.
Up to 24 hours
of data
retention for
256 MB.
Drive Failure
Detection Automatic Automatic Automatic Automatic Automatic
Drive Rebuild
Using Hot
Spares Automatic Automatic Automatic Automatic Automatic
Parity
Generation and
Checking Yes Yes Yes Yes Yes
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.