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ELL POWER SOLUTIONS

STORAGE

or more than 20 years, SCSI technolo

y has been

deployed to meet mainstream enterprise storage

equirements. With the arrival of Serial Attached SCSI

(

SAS

)

—the next

eneration o

SCSI-based disk technolo

—

enterprises can deploy storage systems that are more flex-

sca

befo

s the industry’s first 3.5-inch SAS-based disk enclosure,

he PowerVault MD1000 stora

e expansion enclosure builds

pon the Dell tradition o

ering expandable server storage.

y incorporatin

SAS technolo

y, the PowerVault MD1000

s designed to o

er a point-to-point architecture capable o

deliverin

up to 12 Gbps performance. Alon

with the PCI

Express–based Dell PowerEd

e RAID Controller 5/Extended

(PERC 5/E), the PowerVault MD1000 can help enterprises to

meet their

rowin

direct attach stora

e needs

Develo

ment of

SCS

I technology

Over t

ears,

ara

SCSI

as mature

ecome

he stora

e interconnect of choice for many mainstream

enterprises deployin

server-centric stora

e. Althou

arallel SCSI has continued to mature with Ultra320

SCS

I—

the

latest

n—

the

SCS

sta

has

eached

ormance saturation because o

the limitations o

the

ara

us arc

itecture. A

so, para

SCSI can

imit

scalabilit

because o

the restricted addressabilit

SCSI

evices, w

is 16 IDs per SCSI

he SAS protocol was developed to address needs

or high per

ormance and addressability o

direct

attach stora

e. This protocol builds upon mature par-

allel SCSI technology and implements point-to-point

architecture that enables current speeds of 3 Gbps

er connection—thus, a 4X connection

rovides u

to 12 G

ps. T

e SAS protoco

so provi

es support

or SAS and Serial ATA

(

SATA

)

devices in the same

environment

ith its point-to-point architecture, the SAS protocol

lements ex

anders to allow the connection o

drives than ports. SAS expanders are physical device–level,

RAM KADA

Scaling Direct Attach Storage

with the Dell PowerVault MD1000 Storage Ex

ansion Enclosure

Serial Attached SCSI (SAS) introduces new levels of performance and scalability for

direct attach storage. To take advantage of industry-standard SAS technology, Dell

offers the Dell

™

PowerVault

™

MD1000 storage expansion enclosure. When combined

with the Dell PowerEdge

™

RAID Controller 5/Extended and the Dell OpenManage

™

Server Administrator application, the PowerVault MD1000 can provide a comprehen-

sive SAS storage system.

Related Categories:

Dell PowerVault storage

RAID controllers

Serial ATA (SATA)

Serial Attached SCSI (SAS)

Storage

Visit www.dell.com/powersolutions

for the complete category index.

1 2 3 4 5

Sommario

Pagina 1 - Scaling Direct Attach Storage

Pagina 2 - DELL POWER SOLUTIONS Re

Pagina 3

Pagina 4

Pagina 5 - FOR MORE INFORMATION

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