LSI MegaRAID Enterprise 1600 - Manual (Page 39)

Chapter 4 Features 25
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.
Features 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
SMART Technology
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.