HP Xw6400 - Workstation - 4 GB RAM Manuel utilisateur

Workstation RAID Support

Mini-White Paper

xw4400 RAID Support (Windows)......................................................................................................... 2

xw6400 RAID Support (Windows)......................................................................................................... 3

xw8400 RAID Support (Windows)......................................................................................................... 4

xw9400 RAID Support (Windows)......................................................................................................... 5

RAID 0 Arrays (Striped) ........................................................................................................................ 6

RAID 1 Arrays (Mirrored)...................................................................................................................... 7

RAID 10 Arrays (Striping and Mirroring) ................................................................................................ 8

RAID 5 Arrays (Parity) .......................................................................................................................... 8

RAID 5 Arrays (Parity) .......................................................................................................................... 9

xw4400 RAID Support (Windows)

SATA SAS

Motherboard &

System Capability

Factory

Integration

Controller &

System Capability

Factory

Integration

Boot RAID 0 2-4 HDD32-4 HDD32-4 HDD1,2,3 2-4 HDD1,2,3

Boot RAID 1 2 HDD 2 HDD 2 HDD1,2 2 HDD1,2

Boot RAID 5 3-4 HDD33-4 HDD3

(Nov 2006)

3-4 HDD2,3

(Oct 2006)

3-4 HDD2,3

(Nov 2006)

Boot RAID 10 4 HDD 4 HDD

(Oct 2006) 4 HDD1,2 4 HDD1,2

(Oct 2006)

SATA Boot w/SATA Data 0 3-4 HDD33-4 HDD3N/A N/A

SATA Boot w/SAS Data 0 N/A N/A 2-3 SAS HDD

(SATA Boot)1,2,3

2-3 SAS HDD

(SATA Boot)1,2,3

•Windows 32-bit only

•Windows 32 and 64-bit

•Available Soon

*All HDDs in RAID Array must be identical interface, size, and speed.

1SAS Controller LSI 3041E

2SAS Controller LSI 8344ELP (October 2006)

3Total capacity restrictions apply

xw6400 RAID Support (Windows)

SATA

SAS

Motherboard &

System Capability

Factory

Integration

Controller1&

System Capability

Factory

Integration

Boot RAID 0 2-3 HDD 2 HDD 2-3 HDD 2 HDD

Boot RAID 1 2 HDD 2 HDD 2 HDD 2 HDD

Boot RAID 5 3 HDD No No No

Boot RAID 10 No No No No

SATA Boot w/SATA Data 0 3 HDD No N/A N/A

SATA Boot w/SAS Data 0 N/A N/A 2 SAS HDD (SATA

Boot) No

•Windows 32-bit only

•Windows 32 and 64-

bit

•Available Soon

*All HDDs in RAID Array must be identical interface, size, and speed.

1SAS Controller is LSI 3041E

xw8400 RAID Support (Windows)

SATA

SAS

Mobo & System

Capability

Factory

Integration

Mobo & System

Capability

Controller1&

System Capability

Factory

Integration

Boot RAID 0 2-4 HDD22-4 HDD22-4 HDD22-4 HDD22-4 HDD2

Boot RAID 1 2 HDD 2 HDD 2 HDD 2 HDD 2 HDD

Boot RAID 5 3-5 HDD23-5 HDD2

(Nov 2006) 3-5 HDD23-5 HDD23-5 HDD2

(Nov 2006)

Boot RAID 10 4 HDD 4 HDD

(Nov 2006) 4 HDD 4 HDD 4 HDD

(Oct 2006)

SATA Boot

w/SATA Data 0 3-5 HDD23-5 HDD2N/A N/A N/A

SATA Boot

w/SAS Data 0 N/A N/A 2-4 SAS HDD2

(SATA Boot)

2-4 SAS HDD2

(SATA Boot)

2-4 SAS HDD2

(SATA Boot)

•Windows 32-bit only

•Windows 32 and

64-bit

•Available Soon

*All HDDs in RAID Array must be identical interface, size, and speed.

1SAS Controller LSI 8344ELP (November 2006)

2Total capacity restrictions apply

xw9400 RAID Support (Windows)

SATA

SAS

Mobo & System

Capability

Factory

Integration

Mobo & System

Capability

Controller1 &

System Capability

Factory

Integration

Boot RAID 0 2-4 HDD22-4 HDD22-4 HDD22-4 HDD22-4 HDD2

Boot RAID 1 2 HDD 2 HDD 2 HDD 2 HDD 2 HDD

Boot RAID 5 3-5 HDD23-5 HDD2

(Nov 2006) 3-5 HDD23-5 HDD23-5 HDD2

(Nov 2006)

Boot RAID 10 4 HDD 4 HDD

(Nov 2006) 4 HDD 4 HDD 4 HDD

SATA Boot

w/SATA Data 0 3-5 HDD23-5 HDD2N/A N/A N/A

SATA Boot

w/SAS Data 0 N/A N/A 2-4 SAS HDD2

(SATA Boot)

2-4 SAS HDD2

(SATA Boot)

2-4 SAS HDD2

(SATA Boot)

•Windows 32-bit only

•Windows 32 and

64-bit

•Available Soon

*All HDDs in RAID Array must be identical interface, size, and speed.

1SAS Controller LSI 8344ELP (November 2006)

2Total capacity restrictions apply

RAID 0 Arrays (Striped)

Data blocks alternated between drives

•Raid 0=Striped

•Data is interleaved among the physical disks

oData writes and reads are parallel

oOffering maximum hard disk performance

•All physical space is available (for example, two 40GB drives shown as one 80GB

volume in OS)

•Single hard drive failure results in loss of all data

•Perfect for applications requiring best possible hard drive/application performance

Block 1

Block 2

Block 3

sical Drives

Block 4

Block 5

Block 1 Block 2

Block 6

Block 4

Block 3

Block 7

Block 5 Block 6

Block 8

Block 7 Block 8

Block 9

Block 11

Block 13

Block 15

Block 10

Block 12

Block 14

Block 16

ical

Drive

Drive B

Drive A

Size =

ll of total

sical ca

acit

RAID 1 Arrays (Mirrored)

All data written to both drives

Block 1

Block 2

Block 3

Block 4

•RAID 1 = Mirror

•Data is written to two physical drives in real time

•On single disk failure – no system downtime

All data immediately available from other drive

•Duplicate drive rebuilt upon replacement

•Physical space is cut in half (for example, two 40GB drives needed for

•40GB of space)

•With no loss of data, RAID 1 is perfect for applications requiring very high

availability/security

Block 5

Block 6

Block 7

Block 8

sical Drives

Block 1

Block 2

Block 3

Block 4

Block 5

Block 6

Block 7

Block 8

Block 1

Block 2

Block 3

Block 4

ical Block 5

Drive Block 6

Size = Half of total

sical ca

acit

Block 7

Block 8

Drive B

Drive A

RAID 10 Arrays (Striping and Mirroring)

RAID 10 = Stri

e + Mirro

•Re

uires minimum of four drives•Provides write

erformance of RAID 1

•Protects a

ainst sin

le HDD failure•Provides read

erformance of RAID 0

Drive A Drive B

Physical Drives

Drive C Drive D

Block 2

Block 4

Block 6

Block 8

Block 1

Block 1 Block 1

Block 1

Block 8

Block 6

Block 4

Block 2

Mirrored Array

ical

Drive

Size = Half of total

physical capacity

Block 8

Block 7

Block 6

Block 5

Block 4

Block 3

Block 2

Block 1

Data written to all drives as

multiple mirrored arrays

Block 1

Block 3

Block 5

Block 7

Block 9

Block 1

Block 1 Block 1

Block 1

Block 9

Block 7

Block 5

Block 3

Block 1

Mirrored Array

RAID 5 Arrays (Parity)

Data from each drive is

duplicated (in segments) on

the other drives in the array

•RAID 5 = parity

•Failed drive is rebuilt from parity data

•Very high read performance

•High system overhead for writes

•Requires minimum of three drives

•Summary

oBetter performance than a single drive

oInexpensive redundancy

sical Drives

Stri

Parit

(

2B 2C

)

Stri

Drive A Drive B

Parit

(

3A 3C

)

Stri

Parity (1A

Strip

Stri

Drive C

herein is subject to change without notice. The only warranties for HP products and

services are set forth in the express warranty statements accompanying such

products and services. Nothing herein should be construed as constituting an

additional warranty. HP shall not be liable for technical or editorial errors or

omissions contained herein.

439277-001, October 2006

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