System Storage TM © 2007 IBM Corporation IBM System Storage™ DS3000 Series Jüri Joonsaar Tartu.

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Presentation transcript:

System Storage TM © 2007 IBM Corporation IBM System Storage™ DS3000 Series Jüri Joonsaar Tartu

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation IBM System Storage DS3300 iSCSI host interface disk system IBM System Storage DS3300 iSCSI host interface disk system IBM System Storage DS3400 FC host interface disk system IBM System Storage DS3400 FC host interface disk system IBM System Storage DS3200 SAS host interface disk system IBM System Storage DS3200 SAS host interface disk system DS3000 Series

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation Redundant, hot-swappable components Intuitive DS3000 Storage Manager software Support for up to 32 Storage Partitions Online capacity expansion up to 48 drives with EXP3000s 2U enclosure supporting up to 12 SAS and/or SATA drives Support for FlashCopy and VolumeCopy Dual-active RAID controllers with mirrored, battery-backed cache DS3000 Series - Common Features Supports tiered storage with SAS and SATA intermix support Telco model supports -48v DC power supplies

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation DS3000 Enclosures DS3200, DS3300 or DS3400 Controllers SAS and/or SATA drives Power/cooling DS3200 DS3300 DS3400

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation DS3200 – A Closer Look One or three 3-Gbps SAS host ports per controller Each port is a 3-Gbps x4 “wide” link 3 SAS host port per controller model SAS host ports Ethernet management port Diagnostics port for servicing SAS expansion port Power Supply / Cooling

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation DS3300 – A Closer Look Two 1-Gbps iSCSI host ports per controller iSCSI host ports SAS expansion port Ethernet management port Diagnostics port for servicing Disabled SAS portPower Supply / Cooling

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation DS3400 – A Closer Look Two 4-Gbps FC host ports per controller FC host ports Ethernet management port Diagnostics port for servicing SAS expansion port Power Supply / Cooling Disabled SAS port

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation DS3000 Host Cabling FC SAN attach IP SAN attach Direct attach DS3400DS3300DS3200 Direct attach

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation Benefits of Premium Features

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation LUN 0 LUN 1 LUN 2 LUN 0 LUN 1 LUN 0 LUN 1 Logical partition A Logical partition B Logical partition C unmapped volumes Host AHost B Host Group C What is Storage Partitioning? A logical unit consisting of one or more volumes that can be accessed by a single host or shared among hosts One or more volumes are mapped to an individual host or host group This volume-to-LUN mapping defines what host or host group will have access to the volume Partition access is maintained at the controller level

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation A point-in-time image can be created in seconds What is FlashCopy? A point-in-time (PiT) image of a logical drive Logical equivalent of a physical copy Features: Instantaneous copy Requires less disk space than a full copy Map-able to any host Can be read from, or written to Primary uses: PiT backup image File restoration Data mining / analysis Base Logical Drive Physical FlashCopy Logical Drive FlashCopy Repository Logical C’ A B C C’

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation What is VolumeCopy? Complete (byte-by-byte) PiT replication of one logical drive (source) to another (target) within a storage system Target logical drive also referred to as a clone Eliminates I/O contention on the primary logical drive Primary uses: Full PiT data set available for analysis, mining, testing, backup Migrating data between storage tiers Production Server Analysis Server PiT Clone Source logical drive Volume Copy Fast copy of data with no server cycles

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation Selecting A Drive Type Understand customer’s requirements Highest performance or highest utilization. Best $/GB or balanced price/performance. Understand application requirements Highest IOPS or highest MB/s. Heavy usage data or static data. Understand drive characteristics Time to data Data transfer rate

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation Understanding Performance Two primary metrics IOPS Measures random, small-block I/O Transactional applications such as OLTP, databases, Exchange MB/s Measures sequential, large-block I/O Data-intensive applications such as rich media, 3D modeling, simulation, high performance computing

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation IOPS IOPS measures random, small-block I/O Key drive-based performance enablers: Seek time, latency, rotational velocity, command queuing, number of drives IOPS performance is heavily dependent on the number and type of disk drives SAS drives have faster seek time, lower latency, faster rotational velocity, and better command queuing compared to SATA Drive-limited configurations can result in similar performance between systems with very different maximum capabilities FC SAS SATA

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation Throughput MB/s measures sequential large-block I/O Key drive-based performance enablers: Data transfer rate, maximum I/O transfer size, command queuing Throughput rates are heavily dependent on the internal controller bandwidth Maximum throughput rates can typically be reached with a small number of disk drives SATA delivers about 66% of SAS’s drive-level performance FC SAS SATA

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation Application Access Patterns

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation Application Access Patterns IOPS are best served by SAS drives MB/s an option for SATA drives

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation Tiered Storage Solution of Choice The DS3000 series can cost effectively support an organization’s entire range of data capacity requirements in a single disk system * Excludes BladeCenter Boot Disk System

© 2008 IBM Corporation 21 Performance Comparisons Notes:1. SAS Drives, benchmarked with dual controllers 2. Performance results achieved under ideal circumstances in a benchmark test environment. Actual customer results will vary based on configuration and infrastructure components.

© 2008 IBM Corporation 22 Performance Comparisons Notes:1. SAS Drives, benchmarked with dual controllers 2. Performance results achieved under ideal circumstances in a benchmark test environment. Actual customer results will vary based on configuration and infrastructure components. Beware, this is “best case.” In the real world, unless you have dedicated infrastructure, you will find somewhat slower IOPS, due to iSCSI network contention. Disk performance about equal

© 2008 IBM Corporation 23 Performance Comparisons Notes:1. SAS Drives, benchmarked with dual controllers 2. Performance results achieved under ideal circumstances in a benchmark test environment. Actual customer results will vary based on configuration and infrastructure components. Disk Reads ~ 42%

© 2008 IBM Corporation System Storage TM IBM SystemsCustomer Presentation DS3000 Interoperability Matrix DS3000 MTMs & Options covered by the matrix What comes in the box with the system Supported HW & SW options by DS3000 MTM Operating System Support Server Support HBA Support Fabric Support HDD Support Available ServicePac Options