The document discusses the Sun StorageTek 2500 series arrays. It provides context on challenges facing IT today such as data growth, storage utilization, and complexity. The 2500 arrays are presented as affordable primary and secondary storage solutions for entry-level and workgroup environments. Key features highlighted include simple management, small footprint, strong performance for the price, and reliable data protection.

1. Sun StorageTek™ 2500
Series Arrays -
Technical Presentation
Presenter
Title
Sun Microsystems, Inc.

2. Challenges for Today's IT
• Dealing with data growth and capacity
constraints with restrictive budgets
• Low storage utilization from stranded server
DAS storage leads to wasted space,
duplicated functions, and inefficient data
protection
• Provisioning the right class of storage for
the right application environment
• Dealing with the complexities of managing
storage
• Dealing with rack space constraints
• Reducing CAP-EX and OP-EX, improving
business operations
Sun Proprietary/Confidential: Internal Use Only Page 2

3. Emerging Applications
• Distributed database applications including
CRM, data warehousing/analytics, email –
requiring low cost, horizontal scaling storage
• Distribution, editing, and reception of
content pushing content closer to the edge
of the network
• Digital content including broadcast, video on
demand, multimedia, digital cinema
• Web 2.0 applications and services enabling
sharing, participation, and collaboration
• High performance compute and grid
environments
Sun Proprietary/Confidential: Internal Use Only Page 3

4. Customers Telling Us They Need
• Simple and common management
> Easy as provisioning their server
> Ease application optimization
• Small footprint
> For rack intensive server and
storage environments
• Strong performance to meet new
application demands without
sacrificing budgets
• Reliable data protection and
availability for the money
Sun Proprietary/Confidential: Internal Use Only Page 4

5. Sun StorageTek™ Modular Line
Solutions that provide streamlined management, flexiblity, & TCO
Sun StorageTek™
Sun StorageTek™ 6540 array
6140 array
Ideal for
New! database-driven
applications
Sun StorageTek™ Leader in
2500 arrays price/performance
Enterprise-class
Excels in HPTC
data protection
environments
on a budget
Multi-tiered storage
Affordable entry Replication
point within Modular target
family of arrays
Support for variety
of host interface
options
Sun Proprietary/Confidential: Internal Use Only Page 5

6. Positioning
The Sun StorageTek 2500 array
family is ideal as primary and
secondary storage for entry and
workgroup application
environments
It is based on a new low-cost SAS/SATA disk subsystem
providing consolidated RAID to FC or SAS host interfaces
Sun Proprietary/Confidential: Internal Use Only Page 6

7. SAS Defined
• Serial Attached SCSI (SAS) is a serial communication
protocol designed for transfer of data to and from devices
• The SAS standard defines a device-level enterprise storage
interface incorporating SCSI command sets, serial point-to-
point interconnections, dual-porting, increase addressability
and the ability to scale small form factors
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8. SAS Deployments Motherboards
SAS ICs HBAs
RAID
adapters
Switches
SAS Expanders
RAID
controllers
Drives
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9. SAS: Superior to Parallel SCSI
• SCSI is in its 7th generation with the U320 SCSI and has
reached its final iteration
• Serial attached SCSI is the successor to parallel SCSI
> New roadmap and the industry behind it
• Benefits
> Better performance
> 3 Gb/s SAS “x4 wide” ports provide
a cumulative bandwidth of 12 Gb/s
> Full duplexing 1 2 3 4
> Allows for data to be received 1 2 3 4
and transmitted at the same time
> Scalable
> Freedom from 15 drive maximum per SCSI channel
> SAS and SATAProprietary/Confidential: Internal Use Only supports tiered storage
Sun
drive compatibility Page 9

10. SAS: Superior to Parallel SCSI
Parallel SCSI SAS
Architecture Parallel, all devices connected to a shared bus Serial, point-to-point, discrete signal paths
320 MB/s (Ultra 320 SCSI); performance 3.0 Gb/s, roadmap to 12.0 Gb/s; performance
Performance
degrades as devices added to shared bus maintained as more drives added
Scalability 15 drives Over 16,000 drives
Compatibility Incompatible with all other drive interfaces Compatible with Serial ATA (SATA)
12 meters total (must sum lengths of all cables 8 meters per discrete connection; total domain
Max cable length
used on bus) cabling 100+ meters
Cable form factor Multitude of conductors adds bulk, cost Compact connectors and cabling save space, cost
Hot pluggability No Yes
Manually set, user must ensure no ID number Worldwide unique ID set at time of manufacture;
Device identification
conflicts on bus no user action required
Manually set, user must ensure proper installation Discrete signal paths enable devices to include
Termination
and functionality of terminators termination by default; no user action required
Sun Proprietary/Confidential: Internal Use Only Page 10

11. Understanding SAS “Wide” Ports
• SAS lane is 3 Gb/s
> Path to drives is a single lane
• “x4 wide” creates 4 lanes
in a single connector
• Lanes are typically used
in one of two ways
> Round robin down each lane
> Designated primary
> “Overflow” when concurrent
I/Os overload the previous channel
Sun Proprietary/Confidential: Internal Use Only Page 11

12. Drive Performance Comparison
• IOPS
> Random, small-block transfers
> OLTP, databases, Exchange
> Majority of enterprise applications 15K SAS
> Key drive-based performance enablers:
> Seek time, latency, rotational velocity, IOPS -- SAS ~100% of 15K FC
command queuing, number of drives
• Throughput
> Sequential, large-block transfers
> Video servers, rich media, seismic
processing, HPC 10K SAS
> Key drive-based performance enablers:
Throughput -- SAS ~100% of FC
> Data transfer rate, maximum I/O
transfer size, command queuing Use Only
Sun Proprietary/Confidential: Internal Page 12

13. SAS Drive Adoption Is Growing
Sun Proprietary/Confidential: Internal Use Only Page 13

14. Sun StorageTek 2500 Arrays
Simple, Reliable, Affordable Storage Solutions
• Simple and common management with Common Array Manager
(CAM)
> Easy as provisioning your server
> Ease application optimization
• Small 2U/12 drive footprint
> For rack intensive server and storage environments
• Strong performance <$10K
> Meet new application demands without sacrificing budgets
• Reliable data protection and availability for the money
> Fully redundant RAID array with snapshot protection and higher availability
than traditional server DAS
Delivers optimal performance & reliability at lower costs
Sun Proprietary/Confidential: Internal Use Only Page 14

15. Sun StorageTek 2500 Features
Q1FY08
Model Number ST2540 (FC) ST2530 (SAS)
Up to four 4Gb/s FC Up to Six 3Gb/s
Host ports
ports SAS ports
On-board RAID 0, 1, 5, 10 (Single RAID, dual RAID)
Cache memory Up to 1 GB/system
Drive trays 2U, 12-drive
Max. drives per system Up to 36 drives
Disk types SAS (73GB/146GB/300GB) and SATA*
SAS/SATA intermix Yes*
Cache: ~ 100,000 IOPS, ~1,500 MB/s
Performance
Disk: ~ 20,000 IOPS, 900 MB/s
Data services Data Snapshot
Management (included) Common Array Manager
Solaris 9 (ST2540), 10, Windows, Linux, ApMayu
O/S
VMWare ESX (2540) Release
* SATA drive support planned for Q3CY07
ST2500 is a new series of storage arrays based on a new low-cost SAS/SATA disk
subsystem providing consolidated RAID to FC and SAS host interfaces
Sun Proprietary/Confidential: Internal Use Only Page 15

16. ST2500 CRUs
Controller
SAS/SATA
Drives
Power / cooling
Sun Proprietary/Confidential: Internal Use Only Page 16

17. ST2540 Storage Array
FC host SAS (expansion) Power switch / cord
interfaces interface Controller
Gigabit Ethernet
management interface PS/2 Serial
diagnostics port Power Supply/ Cooling

18. ST2540 Controller Architecture
• Two 4 Gb/s FC host
interfaces
• Direct connectivity to
first 12 drives
• One SAS drive port for
capacity expansion
• I/O system core with
integrated XOR engine
• Ethernet port for remote
management
• PS/2 serial ports for
service
• 512 MB battery-backed
memory/cache
Sun Proprietary/Confidential: Internal Use Only Page 18

19. Dual ST2540 Controllers
Sun Proprietary/Confidential: Internal Use Only Page 19

20. ST2540 Host-Side Cabling
Direct-attached SAN-attached
I/O paths to each controller should be established for full redundancy and failover protection
Sun Proprietary/Confidential: Internal Use Only Page 20

21. ST2530 Storage Array
SAS host SAS (expansion) Power switch / cord
interfaces interface Controller
Gigabit Ethernet
management interface PS/2 Serial
diagnostics port Power Supply/ Cooling
Sun Proprietary/Confidential: Internal Use Only Page 21

22. ST2530 Controller Architecture
• Two 3 Gb/s “x4 wide”
SAS host interfaces
• Direct connectivity to
first 12 drives
• One SAS drive port for
capacity expansion
• I/O system core with
integrated XOR engine
• Ethernet port for remote
management
• PS/2 serial ports for
service
• 512 MB battery-backed
memory/cache
Sun Proprietary/Confidential: Internal Use Only Page 22

23. Dual ST2530 Controllers
Sun Proprietary/Confidential: Internal Use Only Page 23

24. ST2530 Host-Side Cabling
Direct-attached with
redundant paths
Direct-attached with
non-redundant paths
I/O paths to each controller should be established for full redundancy and failover protection
Sun Proprietary/Confidential: Internal Use Only Page 24

25. Shared Storage Configurations
Shared DAS Shared SAN
ST2530
ST2540
ST2540
Sun Proprietary/Confidential: Internal Use Only Page 25

26. ST2500 Drive Side Expansion
• When attaching
enclosures, drive loops
are configured as Controller Module
redundant pairs utilizing
one port from each
controller. This helps ST2500 Enclosure
ensure data access in
the event of a path/loop ST2500 Enclosure
or controller failure.
When connecting the ESM, the “out: connector of one ESM must be
cabled to the “in” connector of the next enclosure’s ESM
ST2530 shown
Sun Proprietary/Confidential: Internal Use Only Page 26

27. Supported Disk Drives
• 15 K RPM SAS drives
> 3 Gb/s interface
> 73GB, 146 GB, 300 GB
• SATA-II drives (coming in
Q3CY07)
> 250GB, 500 GB, 750GB capacity
> Native Command Queuing
> 3 Gb interface
Sun Proprietary/Confidential: Internal Use Only Page 27

28. ST2500 High Availability Features
• Redundant, hot-swappable components
> Controllers, drives, cables, power/cooling
• Automated I/O path failover
• Online administration, expansion, configuration
• Global host spares
• Battery-backed cache with cache mirroring
Sun Proprietary/Confidential: Internal Use Only Page 28

29. StorageTek Disk Comparison
Dual controller specs ST2530 ST2540 6140 – 2 GB
Host ports Six 3 Gbps SAS Four 4 Gbps FC Four 4 Gbps FC
RAID 0, 1, 5, 10 0, 1, 5, 10 0, 1, 5, 10
Cache memory 512 MB 512 MB 2 Gb
Expansion interface Two 3 Gbps SAS Two 3 Gbps SAS Four 4 Gbps FC
Drive trays 2 U, 12 drive 2 U, 12 drive 3 U, 16 drive
Max. drives per system 36 36 64
Disk types SAS/SATA* SAS/SATA* FC/SATA
Disk intermix Yes* Yes* Yes
Snapshot, Volume Copy,
Data services Snapshot Snapshot
Remote Mirroring
Management (included) CAM CAM CAM
Max volumes 256 256 1024
Storage domains
2 / 16 2 / 16 0 / 64
(included / maximum)
Sun Proprietary/Confidential: Internal Use Only Page 29

30. Performance Comparison
ST2530 ST2540 6140 – 2 GB
Burst I/O rate – cache reads 91,000 IOPS 114,000 IOPS 120,000 IOPS
Sustained I/O rate – disk reads 16,000 IOPS 16,000 IOPS 28,000 IOPS
Sustained I/O rate – disk writes 3,300 IOPS 3,300 IOPS 5,600 IOPS
Burst throughput – cache read 1,500 MB/s 1,500 MB/s 1,300 MB/s
Sustained throughput – disk read 900 MB/s 900 MB/s 740 MB/s
Sustained throughput – disk write 690 MB/s 720 MB/s 680 MB/s
Drives 36 SAS 36 SAS 64 FC
Sun Proprietary/Confidential: Internal Use Only Page 30

31. Sun StorageTek Common Array Manager
Application Driven and Simple Array Management
Key Functions
> Application-aware
storage profiles: Fast, easy
application deployment
> Proactive Local and Remote Monitoring:
Dramatically reduced service complexity
> Support for a range of Sun
StorageTek offerings
Key Benefits
> Less training, reduced
operations costs
> Quicker deployment time
> Quick service for maximum
uptime
Sun Proprietary/Confidential: Internal Use Only Page 31

32. Sun StorageTek Common Array Manager
Centralized Management Utility
● Easily manage one to many ST2500 arrays
● Deploy by application type (Storage Profiles)
● Up to 256 volumes Save Time
● RAID 0, 1+0, 1, 3, 5 Use Storage Profiles to quickly and
● Dynamic expansion predictably provision storage to
● Dynamic re-configuration precise application demands.
Maximize Performance
Easily and dynamically tune any
attribute to exact application
tolerances.
Grow Without Disruption
Dynamically scale the volume as
the application needs dictate.
Sun Proprietary/Confidential: Internal Use Only Page 32

33. Sun StorageTek Common Array Manager
Application-Oriented Management Accelerates Time-to-Provision
Storage profiles...
Wizards that provide quick,
consistent results every time
• Use 15 pre-tested profiles
(e.g., Oracle, OLTP, HPC)
• Customize existing profiles
• Create unique profiles
• Share profiles between storage
systems
• View configuration details at any time
Sun Proprietary/Confidential: Internal Use Only Page 33

34. Management Host Compatibility
• Sun StorageTek Common Array Manager (CAM)
> Solaris SPARC
>9
> 10
> Solaris x86, Windows
> Linux – both Suse and RedHat
Sun Proprietary/Confidential: Internal Use Only Page 34

35. Serial Port Service Interface
• Mini-DIN connector
> Mini-DIN to 9 pin D serial convertor included
• Uses
> Set TCP/IP network parameters
> If DHCP and static IP configuration are not appropriate
> Display network parameters
> Reset array password
Sun Proprietary/Confidential: Internal Use Only Page 35

36. New! Sun Connected Services
50% or better improvement in case resolution times
• Automatic Case Generation (ACG)
> What it is:
> A customer enabled no-cost remote
connectivity feature
> Can be activated upon installation (phone
line needed)
> What it does:
> Automatic Case Generation for device
problems/faults
> Benefit:
> Reduces length of support call and problem
resolution by over 50% through proactive
monitoring and problem diagnosis
Sun Proprietary/Confidential: Internal Use Only Page 36

37. Sun StorageTek 2540 Array
Data Services
● Data Services are premium features. Licensing key
for purchase.
● Hard Licensing is used. Licenses are keyed to the
array serial number.
● Snapshot
● Storage Domains (2 default, 4, 8, 16 optional)
Sun Proprietary/Confidential: Internal Use Only Page 37

38. Robust Data Protection
Sun StorageTek™ Data Snapshot Software
LUN1 – Sales
LUN2 – Sales BU
• Creates point-in-time
image of a volume
> Up to four snaps per volume E
A' B C' ABC
> Up to 128 snaps/system
Base Snapshot
• Requires less disk space Volume
Sales
Volume
Sales BU
• Ideal for backup, restore, AC
checkpoint Snapshot
Repository
Physical Logical
Sun Proprietary/Confidential: Internal Use Only Page 38

39. Storage Domains
Simplifying Management with Storage Partitions
Host Host Host
A B Group C
• Match applications to storage
class
• Lower TCO by consolidating storage Storage Storage Storage
for heterogeneous hosts Partition
A
Partition
B
Partition
C
• Workloads co-exist harmoniously
LUN LUN LUN LUN
0 0 0 1
• Includes 2 domains; additional
domains available through LUN
1
LUN
2
LUN
3
licensable upgrades
LUN
2
Unmapped Volumes
Sun Proprietary/Confidential: Internal Use Only Page 39

40. Heterogeneous Operating System Support
ST2540 & ST2530 Arrays
Sun Proprietary/Confidential: Internal Use Only Page 40

41. Why Choose Sun Storage?
• Systems approach
> Integrated, tested systems reduce cost, complexity, and risk
• Innovative technology
> Providing a wealth of storage innovation by combining our
own and partner technologies to increase service levels and
simplify management
• Investment protection
> Product strategies and built-in upgradeability help maximize the
value of your investment
• Comprehensive storage portfolio
> Feature-rich portfolio of platforms, infrastructure, software, and
services to fit your data environment needs
Sun Proprietary/Confidential: Internal Use Only Page 41

42. For More Information
• www.sun.com/ST2500
Sun Proprietary/Confidential: Internal Use Only Page 42

43. Sun StorageTek™ 2500
Series Arrays –
Technical Presentation
Presenter
Title
Sun Microsystems, Inc.