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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:
Features
•
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
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audible alarm
•
DMA chaining support
•
separate DRAM bus
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support for differential or single-ended SCSI with active termination
•
up to 12 MegaRAID Enterprise 1600 adapter cards per system
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support for up to 15 SCSI devices per channel
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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
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support for multiple rebuilds and consistency checks with transparent user-definable priority setting
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support for variable stripe sizes for all logical drives
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automatically detection of failed drives
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automatic and transparent rebuild of hot spare drives
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hot swap of new drives without taking the system down
•
optional battery backup for up to 72 hours of data retention
•
server clustering support
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optional firmware provides multi-initiator support
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server failover
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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.
Chapter 4 Features
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