LSI MegaRAID SCSI 320-2 RAID Controller Series 518 - Manual (Page 47)

SMART Technology 4-3
Copyright © 2002 by LSI Logic Corporation. All rights reserved.
4.1 SMART Technology
The MegaRAID Self Monitoring Analysis and Reporting Technology
(SMART) feature detects up to 70% of all predictable drive failures.
SMART monitors the internal performance of all motors, heads, and drive
electronics. You can recover from drive failures through online physical
drive migration.
4.2 Configuration on Disk
Configuration on Disk (drive roaming) saves configuration information
both in nonvolatile random access memory (NVRAM) on the MegaRAID
SCSI 320-2, and on the disk drives it controls. If the MegaRAID SCSI
320-2 is replaced, the new MegaRAID controller can detect the actual
RAID configuration, maintaining the integrity of the data on each drive,
even if the drives have changed channel and/or target ID.
4.3 Configuration Features
Table 4.1 contains the configuration features for the MegaRAID 320-2.
Table 4.1 Configuration Features
Specification Feature
RAID levels 0, 1, 5, 10, and 50
SCSI channels 2
Maximum number of drives per channel 15
Array interface to host PCI 2.2
PCI bus master Supports write invalidate
Drive interface Wide Ultra320
Upgradable cache memory sizes 32, 64, 128, or 256 Mbytes
Cache function Write-back, Write-through, Adaptive
Read Ahead, Non Read Ahead,
Read Ahead