Dell PowerVault MD1120 User Manual

Page 20

A REFERENCE GUIDE FOR OPTIMIZING DELL™ POWERVAULT™ MD1XXX FAMILY SAS SOLUTION

VER A02

PAGE 20

6/16/2008

http://www.dell.com/downloads/global/vectors/2004_2tblun.pdf

Table 3: PERC 5/E and PERC 6/E controller features

Feature

PERC 5/E

PERC 6/E

SAS Technology

3Gbps 3Gbps

Host Bus Interface

x8 PCI Express

Internal connectors

N/A N/A

External Connectors

2 2

RAID Levels Supported

0, 1, 5, 10 and 50

0, 1, 5, 6, 10, 50 and 60

Stripe Sizes Supported

8 KB, 16 KB, 32 KB, 64 KB
and 128 KB

8 KB, 16 KB, 32 KB, 64 KB,
128 KB, 256 KB, 512 KB and
1024 KB,

Cache Size (DIMM)

256MB DDR2

256MB or 512MB DDR2

Write Cache Options

Write-Through, Write-Back

Read Cache Options

Read-Ahead, No Read Ahead

BBU Battery Life

Up to 72 hours

Up to 72 hours for 256MB
Up to 24 hours for 512MB

Maximum Number of Virtual
Disks/Controller

64 64

Maximum Number of
Physical Drives/Virtual Disk

32 32

Form Factor

Full Height, Half-Length PCI
Adapter card

I/O Processor (IOP)

Intel IOP333

LSI 1078 ROC