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ProtecTIER on IBM i Screen Cam Setup Demo and Best Practices August Nancy Roper Americas Advanced Technical Support
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Agenda ProtecTIER Family Reminder Screen Cam Demo
Sign on and Look Around Create a VTL with virtual drives Set up BRMS Make Replication Policies Run the Saves Switch the Replicated Tapes Around What Next? Request a Detailed ProtecTIER Presentation Do a Sizing Attend Gaithersburg Workshop
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Active-Active Cluster Active-Active Cluster
Capacity and Performance IBM TS7600 ProtecTIER® Deduplication Family Gateway New in July 2010 Highest Performance Largest Capacity High Availability Appliance Highest Performance Largest Capacity High Availability High Performance High Capacity Flexible Storage SMB Appliance Highest Performance Largest Capacity Better Performance Larger Capacity Scalable Good Performance Highly Scalable Low cost Good Performance Entry Capacity Very Low cost Single Node Up to 1400 MB/sec 1 PB useable Active-Active Cluster Up to 2000 MB/sec Single Node Up to 500 MB/sec 36 TB (31.5 TiB) useable Active-Active Cluster Up to 100 MB/sec 7 TB (6.3 TiB) useable Up to 250 MB/sec 18 TB (15.8 TiB) useable The Gateway overall performance figures are for the DD4 ProtecTIERs that GA’d in Dec 2010. The other performance figures are the same for DD3 and DD4 ProtecTIERs Single Node Up to 85 MB/sec 5.9 TB (5.5 TiB) useable 4.4 TB (4.0 TiB) useable 3 3
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Overview of Real Life Setup Steps
Hardware VTL Setup Setup Create VTL, Drives, Media Create Replication policy (approx 5-8 wizard screens each) TS7610 Appliance Install + Power Up Key in IP Addresses Watch DVD Videos (done by customer) TS7650 Gateway Install Disk, Create LUNs Install ProtecTIER, Power Up, Attach Disk Setup Metadata & Repository Setup Comms On-the-job Training (done with Lab Services) IBM i Setup TS7650 Appliance Install + Power Up Key in IP Addresses On-the-job Training (done with Lab Services) Reset Fibre Cards Adjust BRMS just like when you add any new tape library All ProtecTIERs Set up the ProtecTIER Manager GUI
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(the screen shots in this demo are from ProtecTIER V2.4)
ProtecTIER Demo Overview (the screen shots in this demo are from ProtecTIER V2.4)
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IBM Rochester ProtecTIER Environment
BRMS Network various volumes SRC001 to SRC005 TGT001 to TGT002 SAN Switch IBM i – X0926P1 Fc 5761 3) Set up BRMS SAN Switch IBM i – X0925P1 Fc 5761 4) Make Replication Policies 5) Run the Saves 6) Move the replicated tapes around TS7650 – “Source-RochPT1” TS7650 – “Target-RochPT2” WAN for IP Replication Cluster Node 1 “RochPT1” (Single Node System) Cluster Node 1 “RochPT2” (Single Node System) WAN for PT Mgr GUI TS7650 Data Repository “Source-RochPT1” TS7650 Data Repository “Target-RochPT2” Virtual Libraries Virtual Media Test Source BRMS IOPless Gen 2 Another One SRCVTL1 20 slots 10 Conv IO slots 4 drives on port 1 various volumes SRC001 to SRC005 Virtual Libraries Virtual Media Test Replica TGTVTL2 10 slots 5 Conv IO slots 2 drives on port 1 various volumes TGT001 to TGT002 1) Signon and Look Around 2) Create VTL etc
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ProtecTIER Demo Sign on and look around
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Repeat for 2nd ProtecTIER node
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Notice the ProtecTIER is idle right now
Notice the entire repository is available right now. Nothing has been saved yet Take a look at the Source ProtecTIER
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Repeat for the Target ProtecTIER
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Look at the Comms Config
ProtecTIER Demo Look at the Comms Config
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(3) Review on remote ProtecTIER too if you want
xx (1) These are the fibre ports that connect the IBM i servers to the ProtecTIER. The fibre ports that connect the disk repository are not displayed via the PT GUI. A dual-node ProtecTIER would have 8 ports (3) Review on remote ProtecTIER too if you want (2) These are Ethernet Links for the ProtecTIER HA Cluster (if you have a 2-node system) and IP Replication (if you have it)
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Create a VTL / Drive / Media
ProtecTIER Demo Create a VTL / Drive / Media
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Create VTL / Drives / Virtual Media
This defines the library Note that this name does not get passed to the IBM i. You should sign on later and rename the TAPMLBxx to this name to make your life simpler Always choose IBM TS3500 for IBM i
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Create VTL / Drives / Virtual Media
These screens plus the next one defines the 4 drives
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Create VTL / Drives / Virtual Media
Design your drive attachment configuration carefully before filling out this screen You would normally spread the drives across all ports (but our system only has 1 fibre cable!)
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Create VTL / Drives / Virtual Media
This screen creates your virtual media. If you consume all your repository space with scratch cartridges, the size of unused cartridges will vary over time as your de-dup ratio varies. Instead, set the max cartridge size and create enough scratch tapes to get to your “Steady State”, then make more scratch cartridges later In choosing the cartridge size, remember that an IBM i Tape library can have at most 5000 “elements” (places where cartridges are stored) and every virtual cartridge needs a slot
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Create VTL / Drives / Virtual Media
Define the slots and convenience IO for your library Don’t skimp on the slots since you have to take the PT offline to add more. You need more slots on a virtual library than a physical library since all tapes need a slot. On physical libraries, many of the active tapes are not in the library because they are offsite Beware that IBM i has a max of 5000 “elements” in a tape library. An element is anywhere a tape can reside – slots, drives, picker, and convenience io Make enough convenience I/O slots to hold all the tapes you want to eject each day
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Create VTL / Drives / Virtual Media
VTL Creation Confirmation Screen
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Create VTL / Drives / Virtual Media
Wait while the library is created, then sign on to the IBM i and reset the tape adapter so the virtual library will auto-configure Switch to the Remote ProtecTIER and create TGTVTL2 the same way
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Check the VTL / Drive on the IBM i
ProtecTIER Demo Check the VTL / Drive on the IBM i
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xx (4) Run INZBRM *DEVICE to update BRMS
(1) Use STRSST to reset the tape adapter attached to the ProtecTIER so it will report in. (3) Mark the drives “unprotected” (2) The ProtecTIER will take the next available TAPMLBxx name. Rename it to match the name you keyed on the PT GUI to keep your environment orderly
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Check the VTL / Drive /Media on the ProtecTIER
ProtecTIER Demo Check the VTL / Drive /Media on the ProtecTIER
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xx 1) Pick the proper system/node 2) Pick the VTL of interest
3) Move through the tabs to see all the details of the VTL
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xx Look at the drives
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xx Look at the virtual volumes
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xx Look at the media sorted by slot #
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xx Look at the Convenience IO Station
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Set up BRMS ready to do a save
ProtecTIER Demo Set up BRMS ready to do a save
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Note that you can make the cartridges any size you like, not just LTO3 sizes. Performance will match whatever your ProtecTIER configuration allows – you’re not tied to LTO3 speeds. xx Make a BRMS Media Class. Remember the TS7650 emulates LTO3. If you also have regular LTO3 drives, you need separate media classes for physical vs virtual LTO3 volumes.
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Repeat this for any volumes on the remote ProtecTIER
INZBRM *DEVICE first xx Repeat this for any volumes on the remote ProtecTIER Add the virtual volumes into BRMS using ADDMLMBRM. Be sure to initialize them or they will get an odd label that will cause trouble later. You may want to use the actual command vs getting there from WRKMLMBRM
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If desired, make a BRMS Move policy that moves the tapes to the remote VTL and back again. Choose if you want to verify moves or not (either will work with ProtecTIER IP Replication)
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Make a BRMS Media Policy that points to the Virtual LTO3 media class and your new move policy
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Make a BRMS Control Group to do your save
Make a BRMS Control Group to do your save. Make sure it points to the new Media Policy you just made and the virtual library Before we run the BRMS Control group, let’s also set up a replication policy on the ProtecTIER
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ProtecTIER Demo (aside) What’s the Shelf?
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Replication Concepts – High Level
Local ProtecTIER Remote ProtecTIER Replication is done by Volser Replication Policy #1 A01 A02 A03 A01 A02 A03 If a volser is not listed in a replication policy, it doesn’t replicate B01 B02 B03 Replication Policy #2 C01 C02 C03 C01 C02 C03 Different Replication Policies can be used for different volser ranges – eg different systems or backups or priorities BUT … duplicate volsers are a problem for backup applications … so ProtecTIER has an elegant solution using “Visibility Switching” via “The Shelf” …..
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Replication Concepts – Visibility Switching and “The Shelf”
Local ProtecTIER Remote ProtecTIER Each ProtecTIER has a “shelf” where the non-active copies of the tape are stored After Replication, if the tapes are more likely to be used at the primary site, then leave the remote copies on the remote shelf A01 A02 A03 B01 B02 B03 If the tapes are more likely to be used at the remote site, then ProtecTIER can work with the backup application to move them into the remote library automatically Replication Policy #1 C01 C02 C03 Replication Policy #2 Local Shelf Remote Shelf A01 A02 A03 Tapes can also be moved manually. It’s also possible (but unusual) to keep both copies on their respective shelf, or both in their respective library C01 C02 C03
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ProtecTIER Replication – Replication Queue
SRC-VTL1 TGT-VTL2 001 Replication Queue 001 001 SRC-SHELF TGT-SHELF Tapes always replicate from a Virtual VTL to a shelf For replicated tapes, the data is kept on BOTH systems, but is only accessible to the tape management system from 1 site at a time A replication policy that has a VTL as a target lets the Tape Management System move the replicated tape into the remote VTL Depending on your replication policy, tapes can start replicating the minute a byte of data hits the virtual volume, or they can wait till the timeframe you set as your replication window. Note that you need to allow bandwidth for replication.
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Initially, our shelf is empty
xx Initially, our shelf is empty
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Set up the System-wide Replication timeframe
ProtecTIER Demo Set up the System-wide Replication timeframe
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Check the System Wide Replication Timeframes
Ongoing Replication is easiest for testing, so click the top radio button for our demo Replication throttles are available for both physical and nominal transmissions Be sure to size the repository for enough bandwidth if you plan to run both saves and replication at once
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Set up a Replication Policy
ProtecTIER Demo Set up a Replication Policy
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(2) Click on Replication to create a new policy
(1) There are 2 replication policies here already from someone else. They handle different tape volsers from the ones we are using.
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Creating a Replication Policy
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Creating a Replication Policy
Our first Replication Policy will leave the tapes on the Shelf at the Remote Site (vols SRC001 to SRC002) Thereafter, we’ll repeat the steps to make a 2nd Replication Policy that moves the tapes into the Remote VTL (vols SRC003 to SRC005). These tapes would normally HAVE a BRMS Move policy Normally, tapes in a “shelf” replication policy would use a BRMS save that did NOT have a move policy (but we accidentally gave them a BRMS move policy in this demo!)
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Creating a Replication Policy
When we repeat the steps to make a 2nd Replication Policy that moves the tapes into the Remote VTL, we’ll assign it to vols SRC003 to SRC005
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Creating a Replication Policy
Confirmation Screen for first Replication Policy
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Here’s how it will look once the 2 new replication policies are created
Highlight each policy on the pane above to look at the details on the right
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Watching the Backups Run
ProtecTIER Demo Watching the Backups Run
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Kick off the first BRMS Backup, then look on the ProtecTIER.
Virtual Volume SRC001 is mounted on virtual drive #3
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Go to the Cartridge Tab and you can see virtual volume SRC001 filling.
xx Go to the Cartridge Tab and you can see virtual volume SRC001 filling.
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xx Go to the System Screen and see the activity on the ProtecTIER fibre ports. DD3 ProtecTIER ports were 4 Gbit, DD4 ports are 8 Gbit. Remember your SAN needs to be 8 Gbit to take advantage of the DD4 ports
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Eventually as you run a few backups, you can see some stats on dedup ratios
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The remote ProtecTIER has similar stats for the replicated data
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Watching the Replication Run
ProtecTIER Demo Watching the Replication Run
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On the local ProtecTIER, you can see the replication activity pending
xx On the local ProtecTIER, you can see the replication activity pending
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xx On the local ProtecTIER, now you can see the replication activity running
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xx Go to the remote ProtecTIER and notice our virtual volume, SRC001, is now on the shelf there, filling gradually since we told it to start replicating as soon as there was data on the tape vs waiting for a replication window
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xx Run another BRMS save and SRC002 will also replicate to the remote shelf Oops! SRC001 and SRC002 have a “shelf” replication policy, so we should have done a BRMS save with no move policy.
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ProtecTIER Demo Manual Move from Shelf
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Manually Moving a Replicated Tape
Suppose you needed to restore some data from a tape that was on the remote shelf, eg SRC001. You can move it into the library manually and do your restore. Plan to move it back to the shelf again when done.
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ProtecTIER Demo MOVMEDBRM
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Now kick off 2 more backups so SRC003 and SRC004 will get some data.
xx Now kick off 2 more backups so SRC003 and SRC004 will get some data. They have a different replication policy that will send them into the remote VTL eventually via the BRMS MOVMEDBRM process
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xx Now we have 4 tapes in the local VTL with data on them (plus 1 scratch) In the background, they have also replicated to the remote VTL SRC001 / SRC002 have the shelf as their replication destination SRC003 / SRC004 have the VTL as their replication destination
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xx Initially, the 4 tapes we have written on are all inside the local virtual library
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xx Now run MOVMEDBRM. BRMS will move all the tapes out of the local library and onto the local shelf. In real life, you likely wouldn’t have assigned a BRMS move policy to the tapes that have a “Shelf” Replication Policy (SRC001 and SRC002) since you’d like your primary copy to stay available in the local library
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All 4 tapes disappear from the local virtual library
All 4 tapes disappear from the local virtual library. Just the one remaining scratch tape (SRC005) is still there.
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Now sign on to the remote IBM i and look at the remote Virtual Library
Now sign on to the remote IBM i and look at the remote Virtual Library. Like magic, a copy of SRC003 and SRC004 are now in that library. Notice that SRC001 and SRC002 didn’t move into the library since they have a Shelf replication policy
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Run ADDMLMBRM to make the tapes available in the library, just like you would do if physical tapes had arrived back and you wanted to put them into the physical library.
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Our two replicated tapes are now in the remote library, ready to use for restores or duplication to physical volumes. Notice that the two scratch tapes we made at the remote site are there too in case we need to failover and start running saves at that site
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On the ProtecTIER, you can see the two replicated tapes in the remote library too. Notice that they are marked “read only”
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The tapes will move back to the primary site the first time MOVMEDBRM runs after they expire
BRMS knows the proper location of SRC004 and SRC005. SRC001 and SRC002 are mixed up because we accidentally gave them a move policy
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Tadaa! Now you’re an expert On the ProtecTIER GUI!
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What Next?
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If you would like to consider ProtecTIER for your shop …
Detailed ProtecTIER Presentation Backup Environment Review Attend the ProtecTIER Hands-on Workshop Text Ask your ProtecTIER team to engage an IBM i / ProtecTIER specialist to review your backup environment with you Two-Day Hands-on Workshop in Gaithersburg, Maryland. Runs 1-2 times per month No charge to attend Invite your local IBM ProtecTIER Sales Team to give you a more-detailed presentation
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ProtecTIER on IBM i Resources
Advanced Technical Support (pre-sales level 3) Americas Lead – Nancy Roper in Canada Europe Lead - Jana Jamsek in Slovenia Asia Lead – Chooi Ling Lee and Jane Lau in Singapore Lab Services (billable install guys – cost for short setup engagement is included in ProtecTIER deal for TS7650 Appliance and Gateway) Mervyn Venter Rob Wilson (open systems guy with some IBM i experience)
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Recap – ProtecTIER on IBM i Demo
Screen Cam Demo Sign on and Look Around Create a VTL with virtual drives Set up BRMS Make Replication Policies Run the Saves Switch the Replicated Tapes Offsite What next? Detailed Presentation Sizing Gaithersburg Workshop
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Questions?
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Special Notices This document was developed for IBM offerings in the United States as of the date of publication. IBM may not make these offerings available in other countries, and the information is subject to change without notice. Consult your local IBM business contact for information on the IBM offerings available in your area. Information in this document concerning non-IBM products was obtained from the suppliers of these products or other public sources. Questions on the capabilities of non-IBM products should be addressed to the suppliers of those products. IBM may have patents or pending patent applications covering subject matter in this document. The furnishing of this document does not give you any license to these patents. Send license inquires, in writing, to IBM Director of Licensing, IBM Corporation, New Castle Drive, Armonk, NY USA. All statements regarding IBM future direction and intent are subject to change or withdrawal without notice, and represent goals and objectives only. The information contained in this document has not been submitted to any formal IBM test and is provided "AS IS" with no warranties or guarantees either expressed or implied. All examples cited or described in this document are presented as illustrations of the manner in which some IBM products can be used and the results that may be achieved. Actual environmental costs and performance characteristics will vary depending on individual client configurations and conditions. IBM Global Financing offerings are provided through IBM Credit Corporation in the United States and other IBM subsidiaries and divisions worldwide to qualified commercial and government clients. Rates are based on a client's credit rating, financing terms, offering type, equipment type and options, and may vary by country. Other restrictions may apply. Rates and offerings are subject to change, extension or withdrawal without notice. IBM is not responsible for printing errors in this document that result in pricing or information inaccuracies. All prices shown are IBM's United States suggested list prices and are subject to change without notice; reseller prices may vary. IBM hardware products are manufactured from new parts, or new and serviceable used parts. Regardless, our warranty terms apply. Any performance data contained in this document was determined in a controlled environment. Actual results may vary significantly and are dependent on many factors including system hardware configuration and software design and configuration. Some measurements quoted in this document may have been made on development-level systems. There is no guarantee these measurements will be the same on generally-available systems. Some measurements quoted in this document may have been estimated through extrapolation. Users of this document should verify the applicable data for their specific environment. Revised September 26, 2006
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Special Notices (cont.)
IBM, the IBM logo, ibm.com AIX, AIX (logo), AIX 5L, AIX 6 (logo), AS/400, BladeCenter, Blue Gene, ClusterProven, DB2, ESCON, i5/OS, i5/OS (logo), IBM Business Partner (logo), IntelliStation, LoadLeveler, Lotus, Lotus Notes, Notes, Operating System/400, OS/400, PartnerLink, PartnerWorld, PowerPC, pSeries, Rational, RISC System/6000, RS/6000, THINK, Tivoli, Tivoli (logo), Tivoli Management Environment, WebSphere, xSeries, z/OS, zSeries, Active Memory, Balanced Warehouse, CacheFlow, Cool Blue, IBM Systems Director VMControl, pureScale, TurboCore, Chiphopper, Cloudscape, DB2 Universal Database, DS4000, DS6000, DS8000, EnergyScale, Enterprise Workload Manager, General Parallel File System, , GPFS, HACMP, HACMP/6000, HASM, IBM Systems Director Active Energy Manager, iSeries, Micro-Partitioning, POWER, PowerExecutive, PowerVM, PowerVM (logo), PowerHA, Power Architecture, Power Everywhere, Power Family, POWER Hypervisor, Power Systems, Power Systems (logo), Power Systems Software, Power Systems Software (logo), POWER2, POWER3, POWER4, POWER4+, POWER5, POWER5+, POWER6, POWER6+, POWER7, System i, System p, System p5, System Storage, System z, TME 10, Workload Partitions Manager and X-Architecture are trademarks or registered trademarks of International Business Machines Corporation in the United States, other countries, or both. If these and other IBM trademarked terms are marked on their first occurrence in this information with a trademark symbol (® or ™), these symbols indicate U.S. registered or common law trademarks owned by IBM at the time this information was published. Such trademarks may also be registered or common law trademarks in other countries. A full list of U.S. trademarks owned by IBM may be found at: Adobe, the Adobe logo, PostScript, and the PostScript logo are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States, and/or other countries. AltiVec is a trademark of Freescale Semiconductor, Inc. AMD Opteron is a trademark of Advanced Micro Devices, Inc. InfiniBand, InfiniBand Trade Association and the InfiniBand design marks are trademarks and/or service marks of the InfiniBand Trade Association. Intel, Intel logo, Intel Inside, Intel Inside logo, Intel Centrino, Intel Centrino logo, Celeron, Intel Xeon, Intel SpeedStep, Itanium, and Pentium are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. IT Infrastructure Library is a registered trademark of the Central Computer and Telecommunications Agency which is now part of the Office of Government Commerce. Java and all Java-based trademarks and logos are trademarks or registered trademarks of Oracle and/or its affiliates. Linear Tape-Open, LTO, the LTO Logo, Ultrium, and the Ultrium logo are trademarks of HP, IBM Corp. and Quantum in the U.S. and other countries. Linux is a registered trademark of Linus Torvalds in the United States, other countries or both. Microsoft, Windows and the Windows logo are registered trademarks of Microsoft Corporation in the United States, other countries or both. NetBench is a registered trademark of Ziff Davis Media in the United States, other countries or both. SPECint, SPECfp, SPECjbb, SPECweb, SPECjAppServer, SPEC OMP, SPECviewperf, SPECapc, SPEChpc, SPECjvm, SPECmail, SPECimap and SPECsfs are trademarks of the Standard Performance Evaluation Corp (SPEC). The Power Architecture and Power.org wordmarks and the Power and Power.org logos and related marks are trademarks and service marks licensed by Power.org. TPC-C and TPC-H are trademarks of the Transaction Performance Processing Council (TPPC). UNIX is a registered trademark of The Open Group in the United States, other countries or both. Other company, product and service names may be trademarks or service marks of others. Revised December 2, 2010
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Notes on Benchmarks and Values
The IBM benchmarks results shown herein were derived using particular, well configured, development-level and generally-available computer systems. Buyers should consult other sources of information to evaluate the performance of systems they are considering buying and should consider conducting application oriented testing. For additional information about the benchmarks, values and systems tested, contact your local IBM office or IBM authorized reseller or access the Web site of the benchmark consortium or benchmark vendor. IBM benchmark results can be found in the IBM Power Systems Performance Report at . All performance measurements were made with AIX or AIX 5L operating systems unless otherwise indicated to have used Linux. For new and upgraded systems, the latest versions of AIX were used. All other systems used previous versions of AIX. The SPEC CPU2006, LINPACK, and Technical Computing benchmarks were compiled using IBM's high performance C, C++, and FORTRAN compilers for AIX 5L and Linux. For new and upgraded systems, the latest versions of these compilers were used: XL C for AIX v11.1, XL C/C++ for AIX v11.1, XL FORTRAN for AIX v13.1, XL C/C++ for Linux v11.1, and XL FORTRAN for Linux v13.1. For a definition/explanation of each benchmark and the full list of detailed results, visit the Web site of the benchmark consortium or benchmark vendor. TPC SPEC LINPACK Pro/E GPC VolanoMark STREAM SAP Oracle, Siebel, PeopleSoft Baan Fluent TOP500 Supercomputers Ideas International Storage Performance Council Revised December 2, 2010
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Notes on HPC Benchmarks and Values
The IBM benchmarks results shown herein were derived using particular, well configured, development-level and generally-available computer systems. Buyers should consult other sources of information to evaluate the performance of systems they are considering buying and should consider conducting application oriented testing. For additional information about the benchmarks, values and systems tested, contact your local IBM office or IBM authorized reseller or access the Web site of the benchmark consortium or benchmark vendor. IBM benchmark results can be found in the IBM Power Systems Performance Report at . All performance measurements were made with AIX or AIX 5L operating systems unless otherwise indicated to have used Linux. For new and upgraded systems, the latest versions of AIX were used. All other systems used previous versions of AIX. The SPEC CPU2006, LINPACK, and Technical Computing benchmarks were compiled using IBM's high performance C, C++, and FORTRAN compilers for AIX 5L and Linux. For new and upgraded systems, the latest versions of these compilers were used: XL C for AIX v11.1, XL C/C++ for AIX v11.1, XL FORTRAN for AIX v13.1, XL C/C++ for Linux v11.1, and XL FORTRAN for Linux v Linpack HPC (Highly Parallel Computing) used the current versions of the IBM Engineering and Scientific Subroutine Library (ESSL). For Power7 systems, IBM Engineering and Scientific Subroutine Library (ESSL) for AIX Version 5.1 and IBM Engineering and Scientific Subroutine Library (ESSL) for Linux Version 5.1 were used. For a definition/explanation of each benchmark and the full list of detailed results, visit the Web site of the benchmark consortium or benchmark vendor. SPEC LINPACK Pro/E GPC STREAM Fluent TOP500 Supercomputers AMBER FLUENT GAMESS GAUSSIAN ANSYS Click on the "Benchmarks" icon on the left hand side frame to expand. Click on "Benchmark Results in a Table" icon for benchmark results. ABAQUS ECLIPSE MM5 MSC.NASTRAN STAR-CD NAMD HMMER Revised December 2, 2010
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Notes on Performance Estimates
rPerf for AIX rPerf (Relative Performance) is an estimate of commercial processing performance relative to other IBM UNIX systems. It is derived from an IBM analytical model which uses characteristics from IBM internal workloads, TPC and SPEC benchmarks. The rPerf model is not intended to represent any specific public benchmark results and should not be reasonably used in that way. The model simulates some of the system operations such as CPU, cache and memory. However, the model does not simulate disk or network I/O operations. rPerf estimates are calculated based on systems with the latest levels of AIX and other pertinent software at the time of system announcement. Actual performance will vary based on application and configuration specifics. The IBM eServer pSeries 640 is the baseline reference system and has a value of Although rPerf may be used to approximate relative IBM UNIX commercial processing performance, actual system performance may vary and is dependent upon many factors including system hardware configuration and software design and configuration. Note that the rPerf methodology used for the POWER6 systems is identical to that used for the POWER5 systems. Variations in incremental system performance may be observed in commercial workloads due to changes in the underlying system architecture. All performance estimates are provided "AS IS" and no warranties or guarantees are expressed or implied by IBM. Buyers should consult other sources of information, including system benchmarks, and application sizing guides to evaluate the performance of a system they are considering buying. For additional information about rPerf, contact your local IBM office or IBM authorized reseller. =============================================================== CPW for IBM i Commercial Processing Workload (CPW) is a relative measure of performance of processors running the IBM i operating system. Performance in customer environments may vary. The value is based on maximum configurations. More performance information is available in the Performance Capabilities Reference at: Revised April 2, 2007
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