Transcript
Introduction to the IBM System Storage DS6000 Steve Wilkins
[email protected]
WAVV Green Bay, WI May 2007
© 2007 IBM Corporation
IBM Systems
WAVV
Trademarks The following are trademarks of the International Business Machines Corporation in the United States and/or other countries. APPN* CICS* DB2* DFSMSMVS DFSMS/VM* DirMaint Distributed Relational Database Architecture* DRDA* e-business logo* ECKD Enterprise Storage Server* Enterprise Systems Architecure/390* ESCON* FICON* GDDM*
GDPS* Geographically Dispersed Parallel Sysplex HiperSockets HyperSwap IBM* IBM eServer IBM logo* IBMlink Language Environment* MQSeries* Multiprise* On demand business logo OS/390* Parallel Sysplex* Performance Toolkit for VM POWER5
POWERPC* PR/SM Processor Resource/Systems Manager QMF RACF* Resource Link RMF RS/6000* S/390* S/390 Parallel Enterprise Server System 370 System 390* System I System p System z System z9
Tivoli* Tivoli Storage Manager TotalStorage* Virtual Image Facility Virtualization Engine VisualAge* VM/ESA* VSE/ESA VTAM* WebSphere* z/Architecture z/OS* z/VM* z/VSE zSeries* zSeries Entry License Charge
The following are trademarks or registered trademarks of other companies. Java and all Java-related trademarks and logos are trademarks of Sun Microsystems, Inc., in the United States and other countries Linux is a trademark of Linus Torvalds in the united States and other countries.. UNIX is a registered trademark of The Open Group in the United States and other countries. Microsoft, Windows and Windows NT are registered trademarks of Microsoft Corporation in the United States and other countries.
Notes: Performance is in Internal Throughput Rate (ITR) ratio based on measurements and projections using standard IBM benchmarks in a controlled environment. The actual throughput that any user will experience will vary depending upon considerations such as the amount of multiprogramming in the user's job stream, the I/O configuration, the storage configuration, and the workload processed. Therefore, no assurance can be given that an individual user will achieve throughput improvements equivalent to the performance ratios stated here. IBM hardware products are manufactured from new parts, or new and serviceable used parts. Regardless, our warranty terms apply. All customer examples cited or described in this presentation are presented as illustrations of the manner in which some customers have used IBM products and the results they may have achieved. Actual environmental costs and performance characteristics will vary depending on individual customer configurations and conditions. This publication was produced in the United States. IBM may not offer the products, services or features discussed in this document in other countries, and the information may be subject to change without notice. Consult your local IBM business contact for information on the product or services available in your area. All statements regarding IBM's future direction and intent are subject to change or withdrawal without notice, and represent goals and objectives only. Information about non-IBM products is obtained from the manufacturers of those products or their published announcements. IBM has not tested those products and cannot confirm the performance, compatibility, or any other claims related to non-IBM products. Questions on the capabilities of non-IBM products should be addressed to the suppliers of those products. Prices subject to change without notice. Contact your IBM representative or Business Partner for the most current pricing in your geography.
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Introduction to the IBM System Storage DS6000
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Agenda
Overview Hardware Details Management Performance Advanced Copy Services z/VM Specifics OS Support Statements Summary A PDF of this presentation is available at: http://www.vm.ibm.com/devpages/wilkinss/ Special Thanks to Curtis Neal (IBM Tucson) for DS6000 hardware-specific chart-ware
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Storage Challenges Reduce administration and support costs; need common management platform
Simplify storage management system; need consolidation
Minimize complexity & cost compared to separate, purpose-built storage
Improve disk utilization and lower storage cost (per GB); no one is throwing data away anymore
DS6000 is here to help 4
Introduction to the IBM System Storage DS6000
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DS6000 Overview ► ►
► ► ► ► ►
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Exceptional price and performance in a small package Same advanced capabilities as Enterprise Storage Server (ESS) 750, ESS 800, and DS8000 Designed for easy install and service; modular packaging Can start small and grow large in physical storage capacity Up to 8 FC/FICON® host ports, 4 GB Cache Perfect when less QOS is required when compared to the DS8000 Cross platform support; System i, System p, System z, Intel, Sun, etc. Introduction to the IBM System Storage DS6000
New Standard in Pricing and Packaging
DS6000
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Overview Continued GUI is supported for configuration & maintenance Offline configuration tool is supported Concurrent Code Load with Multipathing Software Concurrent Maintenance
DS6000
Expansion frames can be added concurrently Maximum of 32 LSS’s ►
32 if all FB or CKD
►
16 FB and 16 CKD if Mixed
Remote Support via Modem 6
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DS6000 Hardware Details ¾ Models
Server Enclosure
Expansion Storage Enclosure
– Controller (1750-522) & Expansion Enclosure (1750-EX2) ¾ Up to 16 DDMs ¾ Dual Active Controllers (Clustered) ¾ FICON/FCP Host Attachment Up to 8 Ports (LW & SW) ¾ Battery Backed Mirrored Cache (Up to 72 Hours) ¾ Fully Redundant Power & Cooling
¾ Maximum ¾ 3U
of 7 Expansion Enclosures (128 DDMs)
Integrated RAID Controller
¾ ESS
Advanced Function
¾ FlashCopy ¾ Metro and Global Mirror ¾ Metro/Global Copy ¾ Global Copy ¾ System z – PAV, Multiple Allegiance ¾ Light ¾ DS
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Introduction to the IBM System Storage DS6000
Path Diagnostics
Storage Manager Software
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Rear View of the DS6000 Controller Light Path Power Switch Diagnostics Intelligent Battery Modules Indicators
Rack Beacon Connector
3U
Service Documentation
Controller Cards
Redundant Power and Cooling Modules
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DS6000 Product Specifications DS6800 Controllers Max Cache Drive Interface Max Hosts Max Storage / Disks
Dual Active 4 GB 2Gb FC/FICON 1024 128 FATA 7.2K RPM: 500GB FC 10K RPM: 146GB, 300GB FC 15K RPM: 73GB, 146GB 292GB to 64TB 4 (2 dual redundant) 8192 (up to 2TB LUN size) 5, 10 4 or 8 drives
Disk Types Capacity Max Disk Loops Max LUNs RAID Levels RAID Array Sizes Operating Systems Packaging
z/OS, z/VM, z/TPF, z/VSE, Linux, i5/OS, OS/400, AIX, SUN Solaris, HP-UX, VMWare, Microsoft Windows 3U – Controller & Expansion Drawers
Power consumption
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Introduction to the IBM System Storage DS6000
Controller: 0.69 kVA Expansion drawer: 0.48 kVA Uses 110V power
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Management and Serviceability Customer Setup and Service ► Express
configuration wizards ► Easy to remove and replace components
Light Path Diagnostics and Controls ► Guides
you to the component requiring service
DS Storage Manager ► Provides
centralized management ● Provides enterprise view of all managed systems ● Automatic and manual device discovery ● Consistent interface across all platforms ► Intuitive GUI enables: ● Easy to navigate and administer interface ● Express configuration through wizards ● Manage all hardware and software components ► Comprehensive Online help and documentation ► Configuration and Service Fault Management Alert message pop-ups ● Step-by-step instructions on how to remove and install components ● Hyperlinks for quick drill-down to specific system components ● DS6000 CLI ► Need Windows PC to run software
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Storage Performance Council Benchmarks The world’s only industry-standard, vendor-neutral, storage benchmark
SPC-1 Random Workload
Sequential Workload
►
Dispersed small data
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Consecutive large data
►
Database queries
►
Database table scanning
►
OLTP
►
Video, streaming media
Relevant Industries
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SPC-2
Relevant Industries
►
Retail
►
Media/Entertainment
►
Financial
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Data Mining
►
Governmental
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Life/Physical Sciences
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Performance Comparison – Model 800 to the DS6800 Full Box Max. Configuration - Fixed Block
Model 800
332 KIO/sec
Open IOPS from Cache
112 KIO/sec
Read Bandwidth from Cache Open Seq. Read from Disk
Open Seq. Write to Disk
Open DB
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DS6800
1648 MB/sec 690 MB/sec 1224 MB/sec 550 MB/sec 550 MB/sec 350 MB/sec 17 KIO/sec 31 KIO/sec
Introduction to the IBM System Storage DS6000
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Performance Comparison – Model 800 to the DS6800 Full Box Max. Configuration - CKD
Model 800 29 KIO/sec
z/OS IOPS from Cache
70 KIO/sec
Read Bandwidth from Cache
1092 MB/sec 690 MB/sec
z/OS Seq. Read from Disk
724 MB/sec 550 MB/sec 343 MB/sec 340 MB/sec
z/OS Seq. Write to Disk
z/OS DB
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DS6800
9 KIO/sec 37 KIO/sec
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IBM System Storage FlashCopy Services Initial Copy
Data Set 010101010101010101 FlashCopy 010010101101001000
FlashCopy Full Copy
Data Set
Dataset Level FlashCopy
0 0 0
0 0 0
0 0
0 0
Incremental FlashCopy
and NoCopy
Reverse Restore
010101010101010101 FlashCopy 010010101101001000
FlashCopy Consistency
Persistent FlashCopy
Group
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0 0 0
0 0 0
0 0
0 0
FlashCopy Reverse Restore
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IBM System Storage Disk Mirroring Global Copy (PPRC-XD)
Metro Mirror
Global Mirror
Two site synchronous
Asynchronous mirroring
Asynchronous mirroring
Short distances
Without consistency
With consistency
Long distances
Long distances
Primary
Metro
Primary
Out of Region
Site A
Site B
Site A
Site B
Metro Site A
Out of Region Site B
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z/VM Specifics VM supports FICON attachment as 3990 Model 3 or 6 Controller Native controller mode 1750 supported on z/VM 5.2.0 with APAR VM63952 brings support on par with z/OS VM simulates controller mode supported by each guest
VM supports the following ECKD DASD types: 3390 Models 2, 3, and 9 (including mod-27 and mod-54) 3390 Models 2 and 3 in 3380 track compatibility mode
VM supports FCP-attached SCSI LUNs as emulated 9336 Model 20 DASD Supports 65,520 cylinder 3390 Model 9 (a.k.a. model 54) and 1TB SCSI LUN VM fully supports the preferred pathing anomaly of the DS6000
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z/VM Flashcopy Instant copy of source disk to target Guest support via CCW channel program support • Restricted to dedicated or fullpack minidisks
Native support via CP FLASHCOPY command Enhanced in new release (z/VM 5.3.0) • Faster Performance and synchronous command operation • Multiple targets from one source • New QUERY VIRTUAL FLASHCOPY command
Flashcopy Version 2 hardware supported • Dataset Relocation (data on different track offsets when moved to target) • Multiple Relationships (source track can have many target tracks, but target track can have only one source track) • Cross LSS (source and target can be in different logical control units)
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instant copy
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z/VM Peer-to-Peer Remote Copy (PPRC) Continuous copy of source disk changes to target Guest support via CCW channel program support ƒ Restricted to dedicated or fullpack minidisks
Native support via ICKDSF Release 17 running in CMS virtual machine PPRC hardware ƒ Metro Mirror (changes from source to target synchronous to initiating I/O) ƒ Global Copy (changes from source to target asynchronous to initiating I/O; allows extended distances between source and target ) ƒ Metro/Global Copy (3 volume PPRC link; Metro Mirror link between source and intermediate volumes; Global Copy link between intermediate and target volumes; allows extended distances with added data integrity) ƒ Global Mirror (asynchronous link between source and target; software managed consistency groups allow failover to point-in-time consistent copy in case of disaster)
CP QUERY DASD DETAILS command displays PPRC volume status (Primary, Secondary, or Cascading Intermediate) when a PPRC link is active for a disk
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Continuous copy
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z/VM Parallel Access Volumes (PAV) Base volume shadowed by 1 or more Alias volumes Looks like multiple separate, real DASD to host operating system Allows concurrent I/O to Base data Greater I/O performance (throughput) by reducing I/O queuing Supported for VM guests as dedicated DASD via the CP ATTACH command or DEDICATE user directory statement Supported also for VM minidisks on z/VM 5.2.0 with APAR VM63952
VM provides workload balancing for guest’s that don’t exploit PAV (e.g., CMS) Real I/O dispatcher queues minidisk I/O across system attached alias volumes VM provides linkable minidisks for guests that do exploit PAV (e.g., z/OS and Linux) New PAVALIAS parameter of the DASD 600-601 access same data DASDOPT and MINIOPT user directory statements or the new CP base alias alias DEFINE PAVALIAS command create RDEV RDEV RDEV alias minidisks (fullpack and non600 601 602 fullpack) for exploiting guests 19
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z/VM Preferred Pathing Support DS6000 hardware structure is such that not all DS6000 ports (FICON or FCP) have equivalent access to the volumes (DASD or LUNs) ƒ Half the volumes need to be accessed by crossing a PCI-X bus ƒ This bus crossing can add 30% to the response time and reduce bandwidth by 50% For FICON connections, VM dynamically discovers which ports (paths or CHPIDs) are preferred versus non-preferred when a volume is varied on-line For FCP connections, preferred versus non-preferred paths must be defined on the SET EDEVICE command (or EDEVICE system configuration file statement) z/VM 5.3.0 will dynamically discover EDEVICE ports at vary on-line For both FICON and FCP, VM contains logic in its I/O scheduler (or SCSI device driver) to use preferred paths over non-preferred paths In general, I/O will failover (i.e., be redriven) on non-preferred paths only if no preferred paths are available or functioning 20
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DS6000 Logical Path Illustration
LUN
LUN LUN
LUN LUN
LUN LUN
y Port B is preferred path for LUNs on right side of PCI bus; Port A is non-preferred path y Port A is preferred path for LUNs on left side of PCI bus; Port B is nonpreferred
LUN LUN
LUN Non-Preferred
PCI BUS Port A
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Preferred
Port B
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z/VM QUERY PATHS QUERY PATHS command will display which FICON paths are preferred versus non-preferred when connected to a DS6000
Example: q paths to 991 Device 0991, Status ONLINE CHPIDs to Device 0991 (PIM) Physically Available (PAM) Online (LPM) Preferred Legend
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: : : :
28 14 43 81 + + + + + + + + + + - + Yes - No
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z/VM SET EDEVICE VM emulates SCSI LUNs as 9336 FBA DASD Issue SET EDEVICE command with the 1750 attribute to map a VM emulated 9336 DASD to a DS6000 SCSI LUN Links LUN to VM's DS6000 SCSI driver PREFerred and NOTPREFerred parameters define preferred versus non-preferred SCSI paths >>-SET--EDEVice--rdev---------------------------------------------> >---TYpe--FBA--ATTRibutes--.-1750-.--.-------------.-| Paths |--->< |-2105-| |-ADD PATH----| |-2107-| '-DELete PATH-' Paths: '-SCSI-' <--------------------------------------------------------------< |--FCP_DEV--nnnn--WWPN--wwwwwwwwwwwwwwww--LUN--llllllllllllllll--> >----------------------.--------------.------------------------| |-PREFerred----| '-NOTPREFerred-'
PREF and NOTPREF not required and ignored in z/VM 5.3.0 23
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z/VM QUERY EDEVICE Use QUERY EDEVICE command to display what attribute (i.e., device driver) has been defined for an emulated 9336 DASD Ensure that attribute 1750 is displayed for emulated 9336 DASD defined on a DS6000 Use DETAILS parameter of QUERY EDEVICE to display which DS6000 SCSI paths have been defined (or discovered) as preferred versus non-preferred
Examples: q edev 607 EDEV 0607 TYPE FBA ATTRIBUTES 1750 Ready; q edev 609 details EDEV 0609 TYPE FBA ATTRIBUTES 1750 PATHS: FCP_DEV: B100 WWPN: 4004066300C2023B LUN: 0011000000000000 PREF FCP_DEV: B200 WWPN: 4004066300C2023C LUN: 0011000000000000 NOTPREF Ready;
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OS Support Statements - z/VSE and z/TPF VSE FICON
TPF FICON
►
z/VSE Version 3 Release 1
►
z/TPF Version 1 Release 1
►
z/VSE Version 4 Release 1
►
TPF Version 4 Release 1 with APAR PJ30168
FCP ►
z/VSE Version 3 Release 1 ● N_Port ID Virtualization
►
FCP ►
Not Supported
z/VSE Version 4 Release 1 ● N_Port ID Virtualization ● Point-to-Point attachment ● Program-directed re-IPL
Preferred pathing supported for FICON
Preferred pathing supported for FICON and FCP
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OS Support Statements - z/OS FICON - OS/390 V2R10, z/OS V1R4, and above via the following service: Component
APAR
PTFs
IOS
OA09066
UA16070 - OS/390 V2R10 UA16071 - z/OS V1R4 UA16079 - z/OS V1R41 UA16072 - z/OS V1R5 UA16073 - z/OS V1R6
IOS
OA10340
UA16708 - OS/390 V2R10 UA16709 - z/OS V1R4 UA16712 - z/OS V1R41 UA16710 - z/OS V1R5 UA16711 - z/OS V1R6
DFSMS
OA07891
UA15299 - 1G0 UA15300 - 1H0 UA15301 - 1J0
DFSMS
OA08521
UA15302 - 1G0 UA15303 - 1H0 UA15304 - 1J0
RMF
OA09921
UA90153 - z/OS V1R4, V1R41, V1R5 UA90154 - z/OS V1R6
FCP Not Supported 26
FICON preferred pathing supported
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z/OS Preferred Pathing Example DEVSERV command with the PATH option: DS P,/2800 IEE459I 14.19.47 DEVSERV PATHS 321 UNIT DTYPE M CNT VOLSER CHPID=PATH STATUS RTYPE SSID CFW TC DFW PIN DC-STATE CCA DDC ALT CU-TYPE 2800,33903 ,A,114,ZOS7S9,A2=+ A3=+ PATH ATTRIBUTES NP PF 1750 0002 Y YY. YY. N SIMPLEX 17 17 2105 ************************ SYMBOL DEFINITIONS ************************ A = ALLOCATED + = PATH AVAILABLE PF = PREFERRED NP = NON-PREFERRED
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IBM Linux for System z Support Qualities Unsupported
Do not attempt. Will not work. High risk. No IBM support line support
Bronze
IBM Untested 3rd party supported
No IBM testing No known issues IBM Support Line supports only issues recreateable on "Gold level" environment
Silver
IBM Defect support
IBM testing not comprehensive No known issues IBM support Line limited support – e.g. PD/PSI risk is on customer
Gold
IBM Qualified/IBM RPQ
Thoroughly tested by IBM Fully Supported by IBM support line
Testing may move environments from "Silver" to "Gold" level "Silver" IBM defect support may mean, both ► ►
IBM is planning to qualifiy environment in the future, or IBM has no plans to qualify environment
For complete confidence in any "Silver" environment, raise an RPQ/One-Off in order to lift it to "Gold" level
Please confirm "Gold" level, "IBM RPQ" environments with IBM prior to running it. 28
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OS Support Statements - Linux & z/VM FICON Controller
z/VM 5.1
z/VM 5.2
z/VM 5.3
SLES 8
SLES 9
RHEL3
RHEL4
IBM DS6000 FICON
IBM Qualified
IBM Qualified
IBM Qualified
IBM Qualified
IBM Qualified
IBM Qualified
IBM Qualified
2.4.21-27
2.6.9-11
0502RSU
GA
GA
2.4.21-261
2.6.5-7.191
SLES10 and RHEL5 qualification planned
FCP Controller
z/VM 5.1
z/VM 5.2
z/VM 5.3
SLES 8
SLES 9
RHEL3
RHEL4
IBM DS6000 FCP
IBM Qualified
IBM Qualified
IBM Qualified
IBM Qualified
IBM Qualified
Unsupported
Defect Support
0502RSU
GA
GA
2.4.21-261
2.6.5-7.191
2.6.9-11
SLES10, RHEL4, and RHEL5 qualification planned
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Summary: System z with the DS6000 Low-cost, affordable System z solution that fits in standard 19" rack
Customers can now afford and leverage new technology instead of purchasing or retaining older, used hardware
Outstanding TCO for customers' whose specific capacity and performance needs are met ► For
smaller capacity needs
► For
less I/O intensive transaction processing
Excellent choice for low-end System z customers ► Perfect
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for IBM z9 BC, z890, and z800 customers
Introduction to the IBM System Storage DS6000
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Other questions?
The End A PDF of this presentation is available at:
http://www.vm.ibm.com/devpages/wilkinss/ Contact Info: Steve Wilkins
[email protected] (607) 429-4058 31
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