1. DL manuals
  2. IBM
  3. Storage
  4. DATA MIGRATION SERVICES -
  5. Brochure

IBM DATA MIGRATION SERVICES - Brochure

Summary of DATA MIGRATION SERVICES -

  • Page 1

    Ibm global technology services december 2007 storage migrations made simple. Overcoming the challenges of technology refresh.

  • Page 2

    Contents 2 executive summary 4 introduction 6 data migration software 10 technology refresh examples 28 summary executive summary minimizing the impact of data migrations on business operations is a critical part of the data center manager’s job. Studies have shown that technology refresh—defined as...

  • Page 3

    The following table presents five key factors that show how data migration software can simplify technology refresh and how softek ™ transparent data migration facility (tdmf ™ ) technology can meet these needs. Key factors description softek tdmf capability performance performance measurements must...

  • Page 4

    Storage migrations made simple. Page 4 introduction what drives data migration? In a recent softek survey, technology refresh was cited as the major reason for moving data. Technology refresh is defined as replacing an array with a new one and most commonly occurs when: • theleaseonapieceofstorageeq...

  • Page 5

    Storage migrations made simple. Page 5 figure 1 example annual migration requirements highlights for most industries, estimates of data growth can typically range from 25 to 50 percent annually. In many cases, technology refresh not only means replacing storage arrays, but also upgrading associated ...

  • Page 6

    Storage migrations made simple. Page 6 it organizations face many challenges associated with technology refresh— particularly deciding how to deal with data growth and determining how, when and where to move data. Some of the key issues associated with technol- ogy refresh include: • leaseoverlapcos...

  • Page 7

    Restore from backup tapes this method involves making a backup copy of data, then taking the associated arrays and/or servers offline to ensure that no new data is added. Then, the data is restored from the backup tapes to the new arrays and/or servers. Once the restore process is complete, the syst...

  • Page 8

    Volume management or replication volume management is used primarily to control disk resources by mapping the logical view of storage space with the actual physical disks. While it can be used to move small amounts of data, it can be slow. This solution requires a heterogeneous storage environment o...

  • Page 9

    The solution. Together with softek logical data migration facility (ldmf ™ ) software for moving mainframe data at the dataset level, softek tdmf tech- nology provides the solution to meet a wide range of technology refresh and other data migration needs. An examination of real-world scenarios can d...

  • Page 10

    Technology refresh examples local unix array-to-array migration in this example, a manufacturing company running a mission-critical oracle customer order and tracking system on solaris needed to move 3tb of legacy data from an old storage array to a new storage array. The challenges that the company...

  • Page 11

    Softek tdmf technology was chosen because the asynchronous, host-based migration was cost-effective, able to work with disparate platforms, did not require changes to the source environment and could accommodate the increased volume size in the target environment. The benefits of the tdmf solution w...

  • Page 12

    Figure 2 local unix array-to-array migration storage migrations made simple. Page 12 highlights a financial institution cannot afford downtime when moving from legacy storage to newer storage arrays. 5.Oldvolumeswereremovedfromconfiguration. 6.Tdmfsoftwarewasleftonthesystemandusedtomovetwovolumesnon...

  • Page 13

    • largenumberofvolumes — fourhundredvolumeshadtobemovedfromthe oldtonewstoragearray. • budgetconstraints — themigrationbudgetdidnotincludetheanticipated needforoutsideconsultingresourceswithmigrationexpertise. In this case, softek tdmf technology was the only option considered, because no other solu...

  • Page 14

    5.Administratorsmigratedthefinal50percentofvolumesoverthesecond week,withstillnoapplicationimpact. 6.Whenfinalsynchronizationhadtakenplace,tdmfsoftwarecompletedthe swapoperationtoredirectthemainframei/ototargetvolumes,whichbecame primaryvolumes.Switchoverwasperformedwithoutserviceoutage. 7.Backoutop...

  • Page 15

    Storage migrations made simple. Page 15 local mainframe migration with volume consolidation a major savings and loan institution had an older locally attached storage array under strain that it was replacing with a new locally attached storage array. The institution was running db2 and cics vsam app...

  • Page 16

    A combination of softek’s tdmf and ldmf software was chosen because of the products’ ability to migrate data nondisruptively, handle the resizing of mods, and move specific data at the dataset level. With the ldmf/tdmf combination, the project was completed ahead of schedule (60 hours estimated, 55 ...

  • Page 17

    6.Ldmfmigrationwasexecutedovera28-hourperiod(submissionofgroup migrations,monitoringprogressandverificationresults)andnoapplication impactwasreportedduringthisperiod. 7.Scheduledoff-hoursbounceofalldatabaseapplicationstookplaceafter migration,andthetotaldurationoftheoutageforallapplicationswas lesst...

  • Page 18

    Multiserver unix array-to-array migration with consolidation a fortune 500 financial services firm had a mission-critical db2 data ware- house (24tb db2, 10tb supporting files) on seven ibm aix ® 5.1 server platforms with the storage allocated to nine different storage arrays, some more than five ye...

  • Page 19

    Softek’s tdmf unix (ip) software was chosen based on its ability to migrate between disparate platforms and its flexibility in working with various logical definitions. The benefit of the tdmf solution is that the data migration could be performed in a challenging environment well within scheduled w...

  • Page 20

    Storage migrations made simple. Page 20 6.Thefirmperformedextensivetesting,andattheendofthescheduled applicationstoppage,thesystemwentintofullproduction. 7.Atthenextscheduleddowntime,theoldsourcearraysweretakenoutof serviceandsentbacktotheleaseholder. Tdmf tdmf tdmf tdmf tdmf tdmf tdmf new array old...

  • Page 21

    • expirationofstoragelease—thenewjerseystorageneededtobereturned totheleaseholder. • hardwaremove — physicalservershadtobemovedviacourier. • datamoveoverdistance — datahadtobemovedfromthenewjersey storageareanetwork(san)tothenewyorkcitysan. • limiteddowntime — theonlyallowableoutagewasfromfridaynigh...

  • Page 22

    Storage migrations made simple. Page 22 figure 6 global migration to new storage over distance highlights the softek solution enabled a rapid, security-rich migration from the source to the target. 2.At5p.M.Onfriday,theapplicationsweretakenofflineandtdmfwas installedonthenewjerseyservers. 3.Migratio...

  • Page 23

    Global migration to new servers and new storage an insurance company was running a mission-critical claims processing appli- cation on oracle. It was upgrading from legacy servers running solaris 8 and veritas filesystem/solstice disksuite to new servers running solaris 9 and veritas volume manager....

  • Page 24

    Softek’s tdmf unix (ip) software was chosen as the least risky option because no system reboots were required. The migration was performed without requir- ing a reboot of any critical service, continuous application availability was maintained during data migration, and the migration was performed w...

  • Page 25

    Storage migrations made simple. Page 25 figure 7 global migration to new servers and storage 7.Theprocesswasrepeatedforsourceserversbandcoverthenexttwoweeks. 8.Duringthenextscheduledoutage,theolderstoragearraywastaken outofservice. Oracle applications target environment source environment source ser...

  • Page 26

    The key migration challenges were as follows: • addingnewstorage—thegoalwastofreeupexistingstorageandimplement newfaster,cheaperstorage. • limiteddowntime — theapplicationhadalimiteddowntimewindowfrom 12a.M.To6a.M.Saturdaymorningandfrom12a.M.To2a.M.Tuesday morning — butitwasestimatedthatthefullmigra...

  • Page 27

    2.Migrationgroupswereconfiguredonsourceandtargetbytheimplementation team.Theteam,withoffsitesofteksupport,createdmountpointstoresolve issuesrelatedtoinsufficientdriveletterscausedbythenumberofvolumes tobemigrated. 3.Tdmffullrefreshwasinitiatedinloopbackconfiguration.Fullrefresh tookapproximately24ho...

  • Page 28

    Summary for the it manager, technology refresh is regular, continuous and problematic, unless data migration software is used to simplify and streamline the process. The scenarios presented in this paper demonstrate how softek’s data migration software can be leveraged to streamline technology refre...