•SCSI data transfers up to 320 Mbytes/s

•Synchronous operation on a wide LVD SCSI bus

•Up to 15 LVD SCSI devices on each of the Wide buses

•Up to 256 Mbytes of 3.3 V PC100 (or faster) SDRAM cache memory in one single-sided or double-sided DIMM socket (Cache memory is used for read and write-back caching and for RAID 5 parity generation.)

•Non-volatile random access memory (NVRAM) storage for RAID configuration data

•Audible alarm

•Direct memory access (DMA) chaining support

•Separate DRAM bus

•Support for differential or single-ended SCSI with active termination

•Up to 12 MegaRAID 320-2 cards per system

•Support for up to 15 SCSI devices per channel

•Support for RAID levels 0, 1, 5, 10, and 50

•Support for scatter/gather and tagged command queuing

•Ability to multithread up to 256 commands simultaneously

•Support for multiple rebuilds and consistency checks with transparent user-definable priority setting

•Support for variable stripe sizes for all logical drives

•Automatic detection of failed drives

•Automatic and transparent rebuild of hot spare drives

•Hot swap of new drives without taking the system down

•Optional battery backup for up to 72 hours of data retention

•Server clustering support

•Optional firmware provides multi-initiator support

•Server failover

•Software drivers for major operating systems

4-2Features

Copyright © 2002 by LSI Logic Corporation. All rights reserved.