SAP NetWeaver 2004s SR2系统同质异构复制指南

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本资源是一份针对SAP系统（基于SAP NetWeaver 2004s SR2）的系统复制指南，专为系统管理员和技术顾问设计。该文档详细阐述了在同质化（Homogeneous）和异质化（Heterogeneous）系统环境中进行SAP系统复制的过程。SAP NetWeaver 2004s SR2是SAP AG的产品，集成了ABAP（Advanced Business Application Programming）和Java技术，支持企业级应用程序的开发和运行。系统管理员和技术咨询人员可以从中获取到关键信息，如如何安全、高效地在不同架构（如Windows、Linux、Unix等）上进行数据和应用程序的迁移。文档涵盖了复制策略、工具和技术的最佳实践，包括但不限于： 1. 复制方法：介绍针对SAP ABAP和Java应用的不同复制技术，可能涉及全量复制、增量复制以及差异复制的选择与优化。 2. 兼容性管理：强调在跨平台或混合环境中确保软件组件间的兼容性和互操作性，可能涉及到不同数据库管理系统（如DB2、IBM Power系列）的集成。 3. 网络架构：对于基于netweave的网络架构，文档可能会解释如何设置和利用，以实现系统的可靠连接和数据传输。 4. 权限管理和安全性：强调在系统复制过程中保护数据安全，遵循SAP的安全标准和最佳实践，确保数据隐私和业务连续性。 5. 版本控制和升级策略：针对不同SAP系统版本（如sr2），提供升级过程中的系统复制指导，避免潜在的兼容性问题。 6. 故障恢复和备份：涵盖如何设计灾难恢复计划，确保在系统故障时能够快速恢复业务。 7. 培训和支持：面向目标受众提供必要的培训材料和SAPAG的技术支持联系信息，以便遇到问题时寻求帮助。此文档版本为1.0，发布日期为2006年12月4日，所有内容受SAPAG版权保护，未经许可不得复制或传播。此外，还提及了一些知名厂商如Microsoft、IBM等的相关产品作为技术支持和环境背景。这份系统复制指南是每个希望有效管理SAP系统多环境部署的IT专业人士必备的参考资料，有助于提升组织的IT运维效率和业务连续性。

2 Planning

7 . Make sure t hat t he ver sions of t he S AP sys tem and t he ins t allation t ools are t he same on t he t ar get

and sour ce sys tems. Ex cep tions are onl y allo wed if t hey are descr ibed in an S AP N o te.

No te

Y ou can oper ate sever al S AP sys tems on a sing le hos t wit hout encounter ing an y pr oblems.

Never t heless, S AP recommends t hat y ou use a separ ate hos t f or eac h sys tem because an S AP

sys tem upgr ade might depend on an OS upgr ade. If t he S AP sys tems are on separ ate hos ts, y ou

can upgr ade t hem at dif ferent times.

Caution

The sour ce sys tem mus t be in a consis tent s t ate bef ore y ou can cop y it.

Onl y v alid f or : Development Infr as tr ucture (DI)

Sof tw are U nit Development Infr as tr ucture (DI) onl y :

F or t he migr ation of Ja v a Development Infr as tr ucture (JDI) com ponents y ou can appl y eit her

"Cop y" or "Mo ve".

Cop y :

"Cop y" is suppor ted onl y b y Design T ime Reposit or y (D TR). Af ter a cop y , bo t h t he sour ce D TR

and t ar get D TR can be used pr oductivel y in par allel. Ho wever , Com ponent Build Ser vice (CBS)

and Change Management Ser vice (CMS) do no t suppor t suc h a cop y .

Mo ve:

"Mo ve" is suppor ted b y all JDI com ponents ‒ D TR, CBS and CMS. Af ter a mo ve, t he sour ce

sys tem can no longer be used ‒ t hat is, onl y t he t ar get is active af ter t he mo ve has been

per f or med.

End of: Development Infr as tr ucture (DI)

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3 Prepar ations

3. 1

Gener al Prepar ations

IMIG

If y ou w ant t o cop y AB AP sys tems wit h ver y lar ge dat abases, see S AP N o te 6 9 3 1 6 8 (IMIG).

T ool ver sions

Chec k t hat y ou ha ve t he appr opr iate t ool ver sions f or y our S AP ker nel.

S AP license

Once t he ins t allation is com pleted and t he S AP sys tem cop y has been im por ted, y ou will

req uire a new license key f or t he t ar get sys tem. The license key of t he sour ce sys tem is no t

v alid f or t his sys tem. F or inf or mation about or der ing and ins t alling t he S AP license, see

h t t p : / / h e l p . s a p . c o m / n w 2 0 0 4 s S AP NetWea ver S AP NetWea ver Libr ar y S AP NetWea ver b y Key

Capability Solution Life Cy cle Management S AP Licenses

F or more inf or mation about S AP license keys, see S AP Ser vice Mar ketplace at

h t t p s : / / s e r v i c e . s a p . c o m / l i c e n s e k e y .

Heter ogeneous Sy s tem Cop y

F or a heter ogeneous sys tem cop y y ou need t o get a migr ation key b y gener ating it on S AP Ser vice

Mar ketplace at h t t p s : / / s e r v i c e . s a p . c o m / m i g r a t i o n k e y .

Ar c hive files

Dat a t hat has been ar c hived in t he sour ce sys tem (dat a t hat does no t reside in t he dat abase but

w as mo ved t o a dif ferent s t or age location using S AP Ar c hive Management) mus t be made

accessible in t he t ar get sys tem. A dap t t he file residence inf or mation in t he t ar get sys tem. F or more

inf or mation, see: h t t p : / / h e l p . s a p . c o m / n w 2 0 0 4 s S AP NetWea ver Libr ar y S AP NetWea ver b y

Key Capability Solution Life Cy cle Management Dat a Ar c hiving .

A ccess t o ar c hive files is platf or m -independent.

Configur ation anal y sis and har dw are anal y sis

Y ou need t o deter mine t he:

N umber of application ser ver s

Expected size of t he dat abase

A dditional disk s or o t her har dw are req uired

Req uired memor y

No te

See t he section on har dw are and sof tw are req uirements in t he S AP sys tem ins t allation

document ation t o deter mine t he sys tem req uirements.

Onl y v alid f or : Development Infr as tr ucture (DI)

Usage T ype Development Infr as tr ucture (DI) onl y :

If y our S AP sys tem is of usage type Development Infr as tr ucture (DI) t hen t his sys tem can onl y be

mo ved, but no t be copied. This means t hat it is possible t o migr ate suc h a sys tem fr om one hos t t o

ano t her but it is no t possible t o keep bo t h sys tems active af ter t he migr ation. If y ou w ant t o mo ve

an S AP sys tem wit h usage type Development Infr as tr ucture (DI), make sure t hat t he f ollo wing

prereq uisites are met :

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3 Prepar ations

3. 1

Gener al Prepar ations

The user s and passw or ds created in t he sour ce sys tem are v alid in t he t ar get sys tem (f or

ex am ple, t hey use t he same UME).

Chec k in (or rever t) all open activities (of all user s) in t he S AP NetWea ver Developer S tudio b y

using t he Design T ime Reposit or y per spective (D TR per spective).

Remo ve all exis ting development configur ations fr om t he S AP NetWea ver Development

S tudio.

Ver ify in t he D TR Web UI t hat t here are no pending entr ies in t he NameReservation q ueue.

T o c hec k t his, go t o http://<dtrhost>:<port>/dtr/sysconfig/support/

NameReservationList and c hec k t hat t here are no entr ies wit h t he s t ate PRELIMINARY ,

FINALIZE_PENDING or REVERT_PENDING in t he q ueue.

If t here are entr ies wit h t he s t ate FINALIZE_PENDING or REVERT_PENDING y ou ha ve t o w ait f or

t he next r un of t he name reser v ation bac k gr ound t ask in t he D TR ser ver t hat ends t hese

entr ies. This bac k gr ound t ask r uns nor mall y ever y 1 5 minutes.

T o c hec k t he freq uency of t his bac k gr ound t ask y ou can ha ve a look at

http://<dtrhost>:<port>/dtr/sysconfig/scheduled_tasks.html and c hec k t he v alue

Per iodicity f or t he t ask ProcessNameReservationsTask . As precondition f or a suc-

cessful execution of t his bac k gr ound t ask , t he name ser ver mus t be congured in t he D TR ser ver

( http://<dtrhost>:<port>/dtr/system-tools/administration/NameServerConfiguration ).

There should be no entr ies wit h t he s t ate PRELIMINARY in t he name reser v ation q ueue since

t hey onl y occur if t here are open activities (whic h should no t be t he case if y ou

f ollo wed t he previous s teps).

S t op all applications of t he Development Infr as tr ucture (DI) on t he sour ce sys tem.

End of: Development Infr as tr ucture (DI)

Tes t r un and sc hedule

Per f or m a tes t r un of t he sys tem cop y . Y ou can use t he time t aken b y t he tes t r un t o calculate

t he sys tem do wntime:

If y our t ar get sys tem will replace y our sour ce sys tem, tr y t o per f or m a com plete tes t r un.

This means t hat t he entire dat abase is expor ted fr om t he sour ce sys tem, tr ansferred t o t he

t ar get sys tem and im por ted t here. Sys tem do wntime is appr o ximatel y eq ual t o t he t o t al

tes t time (t hat is, time f or expor t, tr anspor t, and im por t).

If y ou do no t w ant t o replace y our sour ce sys tem, a par tial tes t r un (expor t of t he entire

dat abase or par ts of it) can be suf ficient t o calculate t he sys tem do wntime. The sour ce

sys tem is onl y do wn f or t he time of t he expor t.

Calculating t he sys tem do wntime is par ticular l y im por t ant f or ver y lar ge dat abases (VLDB)

or when t apes are being used. The tes t r un is also t o deter mine t he amount of expor t dat a.

Choose t he bes t dat a tr ansfer met hod (f or ex am ple, FTP or t ape). We recommend t hat y ou

per f or m read /wr ite actions onl y on local file sys tems.

Do no t use NFS -mounted file sys tems because:

Reading fr om NFS -mounted file sys tems might f ail

W r iting t o NFS -mounted file sys tems might cause corr up ted dum ps

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3 Prepar ations

3.2

Tec hnical Prepar ations

Define a sc hedule f or t he tes t migr ation and t he final migr ation.

3.2 Tec hnical Prepar ations

T o make a consis tent cop y of t he dat abase, y ou need t o prepare t he sour ce sys tem and per f or m some

subseq uent actions on t he t ar get sys tem. This is no t necessar y when per f or ming a tes t r un.

The f ollo wing descr ibes im por t ant prepar ations. F or more inf or mation about S AP sys tem

adminis tr ation, see t he S AP Online Document ation .

Prepar ing t he sour ce sys tem

Bef ore y ou s t ar t a sys tem cop y , c hec k t he minimum ker nel patc h level req uired b y t he suppor t

pac kage level of t he sour ce sys tem. It might be necessar y t o replace t he S AP ker nel delivered

wit h t he ker nel D VD of t he ins t allation kit and ins t alled dur ing t he ins t allation of t he t ar get

sys tem b y a newer ker nel patc h level bef ore s t ar ting t he t ar get sys tem. If y ou ha ve t o replace

t he delivered S AP ker nel, y ou can do t his af ter t he ins t allation of t he centr al ins t ance.

N o canceled or pending update req ues ts should be in t he sys tem. Chec k t his b y c hoosing

T ools A dministr ation Monit or U pdate (tr ansaction SM13 ).

If canceled or pending updates exis t, y ou mus t update t hese ag ain or delete t hem fr om all

clients. Y ou can see whet her canceled or pending updates exis t b y c hec king if t able VBDATA

cont ains an y entr ies.

F ind t he canceled or open updates as f ollo w s:

1 . Call tr ansaction SM13 .

2. Delete t he def ault v alues f or t he client, user , and time.

3. Choose all update req ues ts.

If canceled or pending recor ds exis t, y ou mus t update t hese ag ain or delete t hem. Chec k

whet her t his action w as successful using tr ansaction SE16 f or t able VBDATA .

Set all released jobs fr om Released t o Sc heduled :

T ools CCMS Bac k g r ound Pr ocessing Jobs - Over view and A dministr ation (tr ansaction SM37 )

Y ou also need t o do t his f or jobs t hat mus t r un per iodicall y (see S AP N o te 1 6 0 8 3 ). Select all jobs

(include st ar t af ter event ) as f ollo w s:

Job Released Sc heduled

A dap t t he oper ation mode timet able t o make sure t hat no switc hing of oper ating modes t akes

place while a sys tem is being copied as f ollo w s:

T ools CCMS Configur ation Oper ation mode calendar (tr ansaction SM63 )

W r ite do wn t he logical sys tem names of all clients:

1 . If y ou plan t o o ver wr ite an exis ting sys tem wit h a sys tem cop y (f or ex am ple, t he sour ce and

t ar get sys tems will bo t h exis t af ter t he sys tem cop y), make sure y ou wr ite do wn t he logical

sys tem names of all clients in t he sys tem t hat will be o ver wr itten (tr ansaction SCC4 ).

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