American Megatrends 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.