LSI MegaRAID Express 500 - Manual (Page 41)

Chapter 4 Features 27
4 Features
MegaRAID is a family of high performance intelligent PCI-to-SCSI host adapters with
RAID control capabilities. MegaRAID Express 500 has a SCSI channel that supports
160M Ultra and Wide SCSI at data transfer rates up to 160 MB/s. The SCSI channel
supports up to 15 Wide devices and up to seven non-Wide devices.
In This Chapter Topics described in this chapter include:
• new features
• configuration features
• hardware architecture features
• array performance features
• RAID management features
• fault tolerance features
• utility programs
• software drivers
SMART Technology The MegaRAID Express 500 Self Monitoring Analysis and Reporting Technology
(SMART) detects up to 70% of all predictable drive failures. SMART monitors the
internal performance of all motors, heads, and drive electronics.
Configuration on Disk Configuration on Disk (drive roaming) saves configuration information both in
NVRAM on MegaRAID Express 500 and on the disk drives connected to MegaRAID
Express 500. If MegaRAID Express 500 is replaced, the new MegaRAID Express 500
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.