Hardware architecture features, Array performance features – LSI MegaRAID Enterprise 1600 User Manual

Page 41

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Chapter 4 Features

27

Hardware Architecture Features

Specification

Feature

Processor

Intel i960RN

SCSI Controller

One Q-Logic 12160 Dual SCSI controllers

memory type

One 64-bit 168-pin SDRAM DIMM socket provides

write-through or write-back caching on a logical

drive basis. It also provides adaptive readahead.

Size of Flash ROM

1 MB

Amount of NVRAM

32 KB

Hardware XOR assistance

Yes

Direct I/O

Yes

Removable battery-backed

cache memory module

Yes

SCSI bus termination

Active, LVD and SE

Double-sided DIMMs

Yes

Direct I/O bandwidth

266 MB/s

Array Performance Features

The MegaRAID array performance features include:

Specification

Feature

Host data transfer rate

266 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

Support for multiple initiators

Yes

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