LSI 1600 Manual De Usuario

                                                                                                                                                                        Chapter 4 Features

MegaRAID Enterprise 1600 64-Bit LVD has four SCSI channels that support 160M and Wide
SCSI, with data transfer rates of up to 160 MB/s per SCSI channel. Each SCSI channel supports up
to 15 Wide devices and up to seven non-Wide devices.

MegaRAID features include:

•  remote configuration and array management through MegaRAID WebBIOS

•  high performance I/O migration path while preserving existing PCI-SCSI software

•  SCSI data transfers up to 160 MB/s

•  synchronous operation on a wide LVD SCSI bus

•  up to 15 LVD SCSI devices on the wide bus

•  up to 128 MB of 3.3V 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 3 and RAID 5 parity generation.)

•  NVRAM storage for RAID configuration data

•  audible alarm

•  DMA chaining support

•  separate DRAM bus

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

•  up to 12 MegaRAID Enterprise 1600 adapter cards per system

•  support for up to 15 SCSI devices per channel

•  support for RAID levels 0, 1, 3, 5, 10, 30, and 50

•  span depth of eight for RAID 1, 3 or 5 arrays

•  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

•  automatically 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

The MegaRAID 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. You can recover from drive failures through RAID remapping and online
physical drive migration.