HDS Network Storage Systems

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Hitachi Data Systems

Network Storage Systems

John Harker Sr. Product Marketing Manager Hitachi Data SystemsSeptember 21, 2004



2

Storage Systems and the SAN Food Chain

ApplicationApplication Server Server SwitchSwitch Storage SystemStorage System

ApplicationApplication

DatabaseDatabase

FileFile

System /System /

VolumeVolume

HBAHBASwitchSwitch

PortPortSwitchSwitch

SwitchSwitch

PortPort

StorageStorage

PortPort

LDEVLDEV RAIDRAID

GroupGroup

CHIP, CA,CHIP, CA,

CSW, DKACSW, DKA

Computers connect to storage systems via Fibre Channel,iSCSI, FICON, ESCON links

Direct attach or through SAN

Storage system firmware takes physical drives and presentsRAID-grouped logical devices out of which storage is allocated

Example Switch Vendors: Brocade, McDATA, CNT, Cisco

Example Array Vendors: HDS, EMC, IBM, HP, Sun, generic JBOD

StorageArea Network



Enterprise StorageHitachi Lightning 9900� V Series



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Separate Front End / Back End cards

Front-end ± Channel Adapters64-bit processors

One port, one processor

for all LUNs

All ports are fast and share

no port resources

Connected via Silicon Switch Architecture to:

Backend ± Array Control

Processors (ACP)64-bit processors

1Gbps FC-AL to the

physical disks

4 paths per ACP, 8 pathsper ACP Pair

32 total physical disk loops

for a total of 32 GB/s



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Hi-Star� Crossbar Switch Architecture



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Lightning 9900 V Series Hardware Summary

Lightning 9970V� ± Up to 48 channels (16 w 2nd ACP)

± 8192 logical addresses

± 1 or 2 Array Control Processors (ACP)

± Up to 3GB Control Memory

± Up to 64GB cache

± Up to 63 Array groups ± 128 HDD

36GB/73GB/146GB

18TB raw

Raid 5

± 3+1, 7+1

Raid 1+

± 2+2, 4+4 ± 1-4 Spare disks

Min one per rpm type

± Optional 2nd Service Processor (SVP)

Lightning 9980V� ± Up to 64 channels

± 8192 logical addresses

± 1 std, 2,3 or 4 ACPs

± Up to 6GB Control Memory

± Up to 128GB cache

± Up to 254 Array groups ± 1024 HDD

36GB/73GB/146GB

148TB raw

Raid 5

± 3+1, 7+1

Raid 1+

± 2+2, 4+4 ± 1-16 Spare disks

Min one per rpm type

± Optional 2nd Service Processor (SVP)



M idrange StorageHitachi Thunder 9500� V Series



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Hitachi Thunder 9500� V Series

Tiered Storage ³in a box´

SATA-based high- capacity,

lower-cost storage

(Fixed content: Old e-mail, X-rays,

Regulatory data, etc.)

SATA-based high- capacity,lower-cost storage

(Backup data: Any data that is going to get

backed up to tape.)

Tape

� Data retained ³forever´

� Redundancy desired

� Data integrity over long haul

� Response time in seconds

� Can employ WORM

� Examples: D2D2T

� Data stays until next backup ±provides rapid restore of

last backup. Restore

performance is key

Tape is not eliminated, but its

usage is confined to offsite

ARCHIVAL only

Data Characteristics

Fixed

Content

2

Backup

Data

3

�From 3U Rack

system to up to 107

Terabytes

�Dual controller, 2, 4

or 8 data-pathdesign

�Fully fault tolerant

and fault self-

correcting

�Shares business

continuity and

management

products withLighting line

Operational

Data

1Fibre Channel high-

performance, higher-cost

storage(Dynamic online data, rich media, large data

bases, etc.)

� High-speed transactions

� High-speed data access

� Data integrity a must



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90

2,048

36/72/146 fibre, 250 SATA

1,024

2-8GB

8 FC/AL @ 2Gb/s

8 FC @ 2Gb/s

7.5GB/second

Dual Controller, bus

449 Fibre, 420 SATA

64TB fibre, 107TB SATA mix

45

512

36/72/146 fibre, 250 SATA

512

4 FC/AL @ 2Gb/s

4 FC @ 2Gb/s

4.2GB/second


224 Fibre, 210 SATA

32TB fibre, 54 TB SATA mix

7

512

36/72/146 fibre

256

1-4GB

4 FC/AL @ 2Gb/s

2 FC @ 2Gb/s

2.1/4.2GB/second


14 Fibre Channel

2TB

RAID Groups

MAX LUNs

HDD Types ( GB )

Virtual Storage Ports

Mirrored cache

Back-end connectivity

Front-end connectivity

Bandwidth

Architecture

Drives

Raw capacity

FEATURE

2-4GB

Thunder 9530V� Thunder 9570V� Thunder 9585V�

Hitachi Thunder 9500 V Series

Family Specifications



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Summary of Major SATA ( PC ) and

Fibre Channel (Enterprise) Differences

PATA SATA Fibre/SCSI Fibre/SCSI

Performance Spin rate RPM2

5400, becoming 7200 7,200 10,000 15,000

Latency ms 5.5 4 3 2

Seek time ms3

13 9.3 5 4

Command Queuing N Y Y Y

RPS no no yes yes

Dual port no no yes yes

Max transfer MB/s4 100/133 150 200 200Future max transfer MB/s 133 300, then 600 400, then 1000 400, then 1000

Sustained transfer MB/s 46 59 69 75

Reliability Typical MTBF 300,000 - 600,000 600,000 1,200,000 1,200,000

Duty cycle

8 by 5, not continual high

access use

8 by 5, not continual high

access use

24 by 7 by 365 continual

high access

24 by 7 by 365 continual

high access

Rotational v ibration 5 rads / sec / sec 21 rads / sec / sec 21 rads / sec / sec

Interactive error management no no yes yes

Internal data integrity checks no no yes yes

Price ratio 1 1.1 2 to 3 2 to 3

Notes

2. PATA HDDs with 7200 RPM are beginning to appear. However, most vendors are using SATA instead of PATA

3. Seek times of 10 ms for PATA are beginning to appear. However, most vendors are using SATA instead of PATA

4. Theoretical max for PATA is 133. Only one PATA drive transferring at 133 was found. The rest were 100.

Desktop Enter prise

Major Differences1

1. All figures in this table are typical numbers for the technology listed



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Thunder 9500 V Series

Serial ATA Data Protection Mechanisms

#1#1 Read-after-write function ± Protect against progressive head misalignment

± Utilise existing compare circuits

± Overcome ATA-interface lack of Byte Check Command (Verify)

Read

Fig. Write & Compare

Write

Seek



15

Thunder 9500 V Series

Serial ATA Data Protection Mechanisms

#3#3 To reduce SATA drives higher failure rate, the following functions are performed:

Unique microcode in Thunder 9500 V Series enhances HDD functionalities togive superior reliability

� During periods of no I/O activity, idle seeksare performed to prevent the heads from

remaining in one place. If I/O is constant,every 10 minutes drive access momentarilyhalts for 5 seconds and a disk sweep isperformed

� If a drive has been inactive for 2 hours, aHead Unload operation is performed,

retracting heads from disk surface until thedrive is again accessed

� For every record, even on SATA HDDs, an 8byte LA/LRC check is added. This ensuresdata consistency



Thank You



TagmaStore Universal

Storage Platform



18

New HDS TagmaStore Universal Storage Platform ±

System Characteristics

Universal Star Network� Architecture ± New generation ³non blocking´ switching architecture

Faster switch components mean enhanced dataand control bandwidth ± 8x EMC real internal bandwidth

Helps consolidations and fast transactionsapplicationsSeparate Control Memory region for increased

reliability and serviceability ± Expanded Cache Memory and flexible Front-End/Back-end configuration

Faster and increased number of RISCprocessors across the systemConform better to the applications needsImproved Fibre Channel and FICON design Additional reliability: reduces outages, increasesproductivity

± Faster back-end design2Gbps disk interfaceEase performance bottlenecks, helps withapplications consolidation and QoS

± Enhanced RAID-1+ and RAID-5 Later release of RAID-6 for increased reliability,recovery and security

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Universal Storage Platform ± Specifications

64 switched data paths = 68GB/sCached Bandwidth ±a 541% Increase in Cached

Bandwidth

Separate 64 control paths connectto cache memory = 13GB/sControl Bandwidth ±a 145% Increase in Control

Bandwidth

300% more active paths in/out of cache memory than EMCSymmetrix DMX 3000-2 ±a 50% Increase over the Industry

Dominating Hitachi Lightning9980V� and EMC DMX-2

128 concurrent cache memoryoperations

128GB of Cache Memory plus6GB of Control Memory

Up to 192 FC connections ±Three times as many as our closest

competitor

96 ESCON or 48 FICON ports ±50% more than anyone else

Over 2GB/s sequential throughput ±400% improvement over DMX

Almost 2Million IOPS cache hitoperations ±4 times the competition

Up to 64 Back-end FC loops ± All active-active, twice as many as

the competition

RAID-1+ and RAID-5

±4 disk or 8 disk groups beyond thesame Director



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Universal Storage Platform ± New Functionality

Universal Volume Manager ± Externally (FC) connects different storage

systemsTransparent use of differenttechnologies beyond a single point of control

± Match applications with storagecharacteristics

± Cost effective solutions for open systems

and S/390® and z/OS® environments

External capacity ± Manages up to 32PB of total storage

Up to 165TB/330TB internal storage

Virtualizes/Simplifies management of multiple tiers of storage ± Simplified configuration and management

± Advanced functions within multiple tiers of storage (Hitachi and other OEM)DLM data movement engine

± Universal replication between unlikestorage vendors, simplify businesscontinuity management, lower costs

Physical Storage Pool

Lightning

9900VThunder

9500VThunder

9500 SATA

Backup Ar chi veGeneralPurpose100%99.99%High Perf.

FC /IP

SAN

UniversalStorage

Platform

ERP EmailData MiningOrder System

Print ServiceFile Service

7700ELightning

9900Partners

Storage

Competitors

Storage



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Universal Storage Platform ± Virtual Partition

Manager

Virtual Partition Manager ± Creates up to 32 different virtual

storage unitsUnique cache, channels, back-end resources aggregationHost Storage Domains further extend connectivity

± Allows to consolidate heterogeneousenvironment

± Provide better QoS control

± Ease consolidation and assetsmanagement

Dynamically allocated, statically used ± Assign the resources between

partitions if not required or used ± Maintain separation and security

between partitions

Benefits ± Better resource usage ± Users and applications aggregation

not possible before = lower operational costs

Physical Storage Pool

Lightning

9900V

Thunder

9500V

Thunder

9500 SATA

Backup ArchiveGeneralPurpose100%99.99%High Perf.

FC /IP

SAN

Virtual Private Storage

8 FC Storage PortsMultiple LUN 0¶s

16GB Cache

100GB HP Disk

20GB 100% Avail Disk

50GB Archive Disk


8 FC Storage Ports

Multiple LUN 0¶s

32GB Cache

500GB HP Disk


2TB Archive Disk


2 FC Storage Ports

Multiple LUN 0¶s

24GB Cache

200GB HP Disk


20GB Archive Disk


2 IP Storage PortsMultiple LUN 0¶s

8GB Cache

20GB HP Disk


100GB Archive Disk

UniversalStorage

Platform

HDS Network Storage Systems

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