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3.3.3
Fault Tolerance
Table 3.8
MegaRAID 320 Fault Tolerance Features
Specification
1
Support for SMART
Optional Battery
Backup for Cache
Memory
Drive Failure Detection Automatic
Drive Rebuild Using
Hot Spares
Parity Generation and
Checking
1. The Self Monitoring Analysis and Reporting Technology (SMART) detects up to 70 percent of all
predictable disk drive failures. SMART also monitors the internal performance of all motors, heads,
and drive electronics.
3.3.4
Electrical Characteristics
Table 3.9
Maximum Power Requirements
PCI/PCI-X
Storage Adapter
+5.0 V
MegaRAID 320-1
MegaRAID 320-2
MegaRAID 320-2X
and 320-4X
Table 3.8
shows the MegaRAID 320 fault tolerance features:
MegaRAID 320-1 MegaRAID 320-2 MegaRAID 320-2X MegaRAID 320-4X
Yes
Yes. Up to 72
hours data
retention.
Automatic
Yes
This section provides the power requirements for the MegaRAID 320
storage adapters.
Table 3.9
which include SCSI TERMPWR, under normal operation.
PCI/PCI-X
+3.3 V
1.5 A
2.0 A
(PCI only)
1.5 A
2.5 A
(PCI only)
5 A
0.0 A
The MegaRAID 320 storage adapters have the following thermal,
atmospheric, and safety characteristics.
Technical Specifications
Copyright © 2003 by LSI Logic Corporation. All rights reserved.
Yes
Yes
Yes. Up to 72
Yes. Up to 72
hours data
hours data
retention.
retention.
Automatic
Automatic
Automatic
Automatic
Yes
Yes
lists the maximum power requirements,
PCI PRSNT1#/
PRSNT2# Power Over the Operating Range
15 W
15 W
25 W
Yes
Yes. Up to 72
hours data
retention.
Automatic
Automatic
Yes
0 ˚C to 55 ˚C
0 ˚C to 55 ˚C
0 ˚C to 55 ˚C
3-13
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