Baydel Founded in 1972 Headquarters: Surrey, England North American Headquarters: San Jose, CA Engineering Driven Organization Specialize in Computer Storage

Baydel

•Founded in 1972

•Headquarters: Surrey, England

•North American Headquarters: San Jose, CA

•Engineering Driven Organization

•Specialize in Computer Storage

Baydel

To design, engineer and manufacture the most RELIABLE product to our customers.

To offer a TRULY OPEN, tightly coupled device and/or solution.

To design and build with future EMERGING TECHNOLOGIES in mind, so as to easily integrate into existing product when production ready.

Philosophy

OESR: High Availability

•RAID Resilience•Dual Controllers (Dual Active, Active Standby•Dual Load Sharing Main Power•Multiple Redundant Cooling Fans - monitored•Independent Isolated SCSI Channels•Battery Backup•Cache Mirroring•RAID Stripe Verification•Background Media Scan•Intelligent Drive Locking

Features

•Modular by design

•Increase Bandwidth

•Increase Density

•Increase Connections

•Customer Serviceable

Ultra SCSI II40MB\Sec

Ultra SCSI I LVD80MB\Sec

Ultra SCSI 3160MB\Sec

FCAL100MB\Sec

Point to Point

SUN

Compaq

HP

IBM

Up to 5.5TB/cabinetUltra: 40MB\SecLVD: 80MB\SecSCSI III (3) 160MB\SecFibre 100MB/Sec

Single Chassis

Full Cabinet.5 chassis, total. 4 shown.

Drive Formatted total $Per/MB Qty Grand Total

9GB 36 (x4) 136GB $.30 MB 5 680GB

18GB 68 (x4) 272GB $.20 MB 5 1.360TB

36GB 136 (x4) 544GB $.12 MB 5 2.720TB

73GB 276.7 (x4) 1,107GB $.07 MB 5 5.5TB

Cabinet Specs

Data Integrity

=

Data = 1

Data = 2

Data = 3

Data = 4 Parity = 10

Data = 2

Data = 3

Data = 4

Parity = 10

10

4

4

3

32

2

1

1

10

Sync Spindles

Independent Spindles

• Parity Checking Done at Micro Processor Speeds

• Independent Architecture Take Performance Hit Due to Additional Seek & Rotations Required Just to Get The Data to do the Math

• Sync Spindles, You Get the Necessary Data Elements to do the Math By Default on Every I/O Operation

• No Performance Degradation When Drive Failed or Missing

• No Reliance on a Single Drive for Data Integrity

Data = 1

SYNC SPINDLE PARITY WILL NOT ALLOWBAD DATA TO BE PASSED BACK!

Availability

Baydel OESR’s Block Diagram

PSU “A”PSU “B”

BBU

Future

I/OADAPTER

I/OADAPTER

HOST “A” HOST “B”

CONTR“B”

CONTR“A”

SCSI 0SET 1 SET 2 SET 3 SET 4

CACHECACHE

Parity Disks

LOGICAL DIAGRAM -SYSTEM LEVEL

PSU “A”PSU “B”

BBU

Future

I/OADAPTER

I/OADAPTER

HOST “A” HOST “B”

CACHECACHE

CONTR“B”

CONTR“A”

DRIVE 1 DRIVE 2 DRIVE 3 DRIVE 4

•Goal: Perform I/O in cache as much as possible.•Design: Intelligent cache, above synchronized spindles.•Result: Don't need large cache -minimize workload on drives. Highest Performance in all I/O Profiles:•Random Read•Sequential Read•Random Write•Sequential Write

Cache

Competition

Backup in Cache. Causes bottleneck.

Cache

Cannotoverloadcache, no bottleneck

Write Cache

Host channel speed Sun PCI LVD best case 70 MB/SEC

Pull data out of cache faster than host can put into cacheguarantees free space to accept writes

Large Write Cache Not Required

Data Data Data

Freespace

4x Cheetha’s synced = 72MB/SEC

Performance

Cache

Host does 100 ea 8k Writes into Cache

Array Does 1 ea 800kWrite to Disk

Use Cache to Minimize Workload on Drives

8k data 8k data 8k data

Note: Physicallyimpossible to do withunsynced architecture

Performance

Motorola Testing

Baydel Versus: Sun RSM 2000 and Sun A5000

Sequential Write Throughput for Baydel

0

5000

10000

15000

20000

25000

30000

35000

40000

1024

8192

2457

6

4096

0

5734

4

8192

0

1146

88

1474

56

1802

24

2621

44

I/O Size

KB

/Se

c

Baydel

RAID5 A

RAID5 B

SW RAID 0

Performance

Baydel's Sequential Read Throughput

0

5000

10000

15000

20000

25000

30000

35000

1024

4096

1638

4

3276

8

4915

2

6553

6

9830

4

1310

72

1638

40

1966

08

3932

16

I/O Size

KB

/Se

c

Baydel

RAID5 A

RAID5 B

SW RAID 0

Performance

Baydel Client name:

Xerox - Clearcase DATE: Feb, 4 1999

Hardware ApplicationsHost

Memory in MB

Device "given"

name of Raid

HOST I/O Average

Read size

HOST I/O Average write size

I/O Profile:Read I/O's

I/O Profile: Write I/O's

DERIVED INDICATORS: Read Cache

Efficiency

DERIVED INDICATORS:

Write commands

Cached

Total Overall Cache Efficiency in %

Sun Clearcase 1 GB term0 11.89 10.62 51.00% 49.00% 26.00% 100.00% 62.26%






65.49%Overall Raid Cache Effectiveness

Baydel Client name:

Xerox - OMAF DATE: June, 5 1998

Hardware ApplicationsHost

Memory in MB

Device "given"

name of Raid

HOST I/O Average

Read size

HOST I/O Average write size

I/O Profile:Read I/O's

I/O Profile: Write I/O's

DERIVED INDICATORS: Read Cache

Efficiency

DERIVED INDICATORS:

Write commands

Cached

Total Overall Cache Efficiency in %

Sun E4000 Oracle term4 26.00 8.00 37.02% 62.98% 69.00% 100.00% 88.52%

Sun E4000 Oracle term6 43.00 9.00 64.20% 35.80% 78.41% 99.84% 86.08%

Sun E4000 Oracle term5 38.00 16.00 60.07% 39.93% 71.59% 99.98% 82.93%

Sun E4000 Oracle term0 28.00 9.00 53.10% 46.90% 67.04% 100.00% 82.50%

Sun E4000 Oracle term1 24.00 8.00 43.19% 56.81% 64.86% 100.00% 84.82%

Sun E4000 Oracle term2 30.00 9.00 43.42% 56.58% 69.33% 99.99% 86.68%

Sun E4000 Oracle term7 33.00 10.00 38.56% 61.44% 64.07% 99.99% 86.14%

Sun E4000 Oracle termb 30.00 8.00 59.29% 40.71% 65.77% 100.00% 79.71%

Sun E4000 Oracle term6 35.00 11.00 61.52% 38.48% 79.85% 100.00% 87.60%

85.00%Overall Raid Cache Effectiveness

EASE OF MANAGEMENT

Controller diagram

Co

ntr

olle

r

Po

wer

Su

pp

ly U

nit

Con

trol

ler

Po w

er S

uppl

y U

nit

Future

BatteryBack-up

Main Motherboard

Personalized Daughter Card•Ultra SCSI•LVD SCSI•FIBRE CHANNEL

Cache Memory

Inner Module

Po w

er S

uppl

y U

nit

Goals Recommendations

Open Systems Approach Hardware - 0 Drivers = OpenSoftware - Industry Leader (VERITAS)

Create Common Backup Methodology DLT Tape Library (STK ATL’s)VERITAS Net Backup S/W. For Solaris, NT, Novell, PC’s.Veritas SRVM.

Decrease Backup Windowa. VERITAS foundation Suite

Zero to Minimal impact on production Volume Manager - MirroringFile System - Oracle perfrmce.

b. VERITAS Replicator = CBB“Create Backup Break”

TOTAL BUSINESS CONTINUANCE

Consolidate Disk to Single Pool across allhost platforms. BAYDEL OESR RAID

Multi Host, Heterogeneous (up to 32 hosts), single pool from 15GB to 2.70 TB in SINGLE cabinet.

Ability to allocate disk space on an “As needed” basis BAYDEL PoolAssign available space to any host, on an “As needed” basis.

Decrease total cost of ownership Disk Maintenance = minimal fee per year/cabinet.Flexible strategy: NAS, SAN, compliant,completely non-proprietary. Interface: LVS, Fibre, SCSI interchange, open to any I/F via Daughter card. Software Maintenance: Disk Capacity Upgrades: $12K per 70GB within enclosure.

Wide Area Clustering between sites

SAN NAS

SAN Host

Node 1

SAN Host

Node 2

SAN Host

Node 3

SANMasterAccessControlNode 4

STORAGE AREA NETWORK (SAN)with Storage Access Protocol

(typically Fibre Channel)

Sectors

Application asks localfile system for file. Localfile system asks storagefor sectors.

Storage

Storage

SAN using traditional networking protocol (I.e., TCP/IP)

Application bypasses local file systemand asks the storage for files. Thestorage now includes the file system, which automatically resolves contentionamong multiple hosts in the same waya local file system resolves contentionamong multiple processes.

Host Host Host Host

DEDICATED STORAGE NETWORK(i.e., running TCP/IP with NFS

with Gigabit Ethernet, etc.

Local area network protocol (I.e. TCP/IP)

File Server:Baydel’s FEM

Documents

Baydel Founded in 1972 Headquarters: Surrey, England North American Headquarters: San Jose, CA Engineering Driven Organization Specialize in Computer Storage