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Hardware architecture features, Array performance features – LSI MegaRAID Express 500 User Manual

Page 43

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Chapter 4 Features

29

Hardware Architecture Features

The hardware architecture features include:

Specification

Feature

Processor

Intel i960RM 100

SCSI Controller

Q Logic ISP10160A

Size of Flash ROM

1 MB

Amount of NVRAM

32 KB

Hardware XOR assistance

Yes

Direct I/O

Yes

Removable cache memory module

Yes

SCSI bus termination

Active, single-ended or LVD

Double-sided DIMMs

Yes

Auxiliary TermPWR source

No

Direct I/O bandwidth

132 MB/s

Array Performance Features

The array performance features include:

Specification

Feature

Host data transfer rate

132 MB/s

Drive data transfer rate

160 MB/s

Maximum Scatter/Gathers

26 elements

Maximum size of I/O requests

6.4 MB in 64 KB stripes

Maximum Queue Tags per drive

211

Stripe Sizes

2 KB, 4 KB, 8 KB, 16 KB, 32 KB, 64

KB, or 128 KB

Maximum number of concurrent

commands

255