sap basis was 7.0 day2 training
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IBM Global Business Services
Course Title
Date:
Duration:
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Course Title
Day 2
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Day 2: Objectives
t the en! o" !ay 2# you shoul! be able to:
Interpret the "un!a$entals o" S% &S
Describe &or' %rocesses an! S% Directory
Structure
naly(e start an! stop o" S% syste$
S% Basis )astTra' &S *00+
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Day 2: Module map
Mo!ule ,: )un!a$entals o" S% &S
Mo!ule -: &or' %rocesses an! S% Directory Structure
+ Mo!ule .: Starting an! Stopping o" S% Syste$s
S% Basis )astTra' &S *00,
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Course Title
Fundamentals of SAP WASModule 4
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Module 4: Objectives
/n co$pletion o" this $o!ule# you shoul! be
able to:
Interpret the architecture o" S% &eb
pplication Server &S1Describe B% an! 3 %rocesses
I!enti"y the !i""erent types o" S% &S
S% Basis )astTra' &S *00.
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SAP NetWeave
4et&eaver is essentially an u$brella ter$# enco$passing a nu$ber o" S%
pro!ucts an! technologies that co$bine to create a plat"or$ "or buil!ing#
e5ten!ing# an! integrating enterprise applications6
It has built in interoperability 7hich hoo's into S%8# Microso"t8# an! ava8base! technologies6
Develop$ent cost is !ecrease!6
Integration is enable!# spee!ing up ti$e to !eploy as 7ell as shrin'ing the
ti$e necessary to per"or$ syste$ upgra!es an! so on6
Total cost o" o7nership is re!uce! signi"icantly because $aintenance an!
support costs are !ra$atically re!uce!6 Thus# innovation is enable! IT can
spen! $ore ti$e $eeting the nee!s o" the business# an! less ti$e
$aintaining e5isting solutions6
S% Basis )astTra' &S *00*
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SAP Web AS ! "asis available platfom
S% Basis )astTra' &S *00
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SAP Web AS ! "asis available platfom #continued$
The &ebS ; Basis layer $anages all your application $o!ules 7ithin your S%
syste$ an! ensures that these $o!ules are integrate!6 It enables plat"or$
in!epen!ence as 7ell6 So$e i$portant "unctions o" the &ebS ; Basis Syste$
inclu!e:
< Constitutes the run ti$e environ$ent "or S%
< =epresents the heart o" the a!$inistrative core o" S%
< >nables $anage$ent an! !istribution o" your S% technical co$ponents an!
resources
< %er$its opti$al integration o" the various S% applications into the overall co$puting
environ$ent
< >stablishes a stable structural "ra$e7or' "or syste$ upgra!es# enhance$ents# an!
so on
< Ma'es it possible to inter"ace 7ith thir!8party applications an! pro!ucts# thus
e5ten!ing S% "unctionality beyon! its o7n innate capabilities
S% Basis )astTra' &S *009
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%omponents of SAP W&" AS
S% Basis )astTra' &S *00?0
Messa'e Seve #Sevice$:
The Message Server han!les
the co$$unication bet7een the
!istribute! !ispatchers 7ithin the
B% stac'# an! enables
scalability o" several parallel
S@s6 The $essage server is
con"igure! only once per S%Syste$6
Dispatc(es
)ate*ay Seve #Sevice$:
The gate7ay server G&1 enables
co$$unication bet7een S%
syste$s or bet7een S% syste$s
an! e5ternal application syste$s6
There is one Gate7ay per
!ispatcher6
+ntenet %ommunication Mana'e , +%M #Sevice$:
ICM enables S% syste$s to co$$unicate !irectly
7ith the Internet6 The ICM receives reAuests "ro$ the
Internet an! "or7ar!s the$ to the S% syste$ "or
processing6 It also !oes recogni(e 7hether the
reAuest is a call o" business server page or a 3
application an! "or7ar!s the reAuest to B% or 3
stac' accor!ingly6 ou can con"igure a Ma5i$u$ o"
one ICM process per application server6
&n-ueue Wo. Pocess:
The >nAueue 7or' process
a!$inisters the loc' table in the
share! $e$ory6 The loc' table
contains the logical !atabase loc's
o" the B% stac'6 /nly one
enAueue 7or' process is nee!e! "or
each S% syste$/
Dialo' Wo. Pocess:
T> Dialog 7or' process "ul"il all
reAuests "or the e5ecution o" !ialog
steps triggere! by an active user6
>very !ispatcher reAuires at least
t7o !ialog 7or' processes6
0pdate Wo. Pocess:
p!ate 7or' processes e5ecute
up!ate reAuests6 ou nee! at least
one up!ate 7or' process per S%
syste$ an! you can have $ore
than one per !ispatcher6
111 ou can use
tansaction SM3 to
display an ovevie* of
A"AP *o. pocess
Spool Wo. Pocess:
The Spool 7or' process pass seAuential
!ata "lo7s on to printers6 >very S%
syste$ reAuires at least one Spool 7or'
process6 o7ever# there can be $orethan one per !ispatcher /
"ac.'ound Wo. Pocess:
The bac'groun! 7or' processes e5ecute
progra$s that run 7ithout user interaction6 t
least t7o bac'groun! 7or' processes are
reAuire! per S% syste$6 More than one
bac'groun! 7or' processes can be
con"igure! per !ispatcher6
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+mpotant tems fo SAP W&" AS
The B% !ispatcher
Dialog 7or' processes DI1
Spool 7or' processes S%/1
p!ate 7or' processes %D an!
%D21
Bac'groun! 7or' processes BGD1
The enAueue 7or' process >4E1
S% Basis )astTra' &S *00??
The B%
!ispatcher
Dialog 7or'
processes DI1
Spool 7or'
processes S%/1p!ate 7or'
processes %D
an! %D21
Bac'groun! 7or'
processes BGD1The enAueue
7or' process>4E1
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5ava pocesses
The "ollo7ing processes e5ist in the
ava environ$ent:
The ava !ispatcher
The ava server process
The ava $essage service
The ava enAueue service
The S% ava Connector co1
S% Basis )astTra' &S *00?2
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A"AP sevices
In a!!ition# the B%1 runti$e syste$ provi!es a!!itional services these are
not 7or' processes1 "or internal an! e5ternal co$$unication:
< The $essage server MS1 han!les the co$$unication bet7een the !istribute!
!ispatchers 7ithin the B% stac' o" an S% syste$6
< The gate7ay server G&1 enables co$$unication bet7een S% syste$s# or
bet7een S% syste$s an! e5ternal application syste$s6 There is one per
!ispatcher6
< n instance is an a!$inistrative unit that co$bines S% syste$ co$ponents
provi!ing one or $ore services6
< The instance sho7s all the processes that are reAuire! "or error8"ree operation o"
an S% syste$# collecte! on one instance6 This instance is !istinguishe! "ro$ all
other instances o" the S% syste$ an! is also calle! central instance6
< The services that an application server can provi!e are !eter$ine! by the type o"
7or' processes it has6
S% Basis )astTra' &S *00?+
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5ava basics
The ava progra$$ing language 7as "irst intro!uce! by the co$pany Sun
Microsyste$s Inc6in ?99-6
ava is an obFect8oriente! an! plat"or$8in!epen!ent progra$$ing language
that is 7i!ely use! in $any areas6 The po7er"ul concept o" ava allo7s the !evelop$ent o" a large nu$ber o"
!i""erent types o" application 8 "ro$ the classic application using pplets
i$ple$ente! in &eb pages to client;server applications6
ava 7as !esigne! to be plat"or$8in!epen!ent6 This $eans that the sa$e
ava progra$ can be e5ecute! on any syste$ "or 7hich a ava =unti$e>nviron$ent =>1 is available6
In particular# ava applications can run on !i""erent syste$s that are base! on
!i""erent har!7are6
S% Basis )astTra' &S *00?,
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"asic java po'ams
ou nee! to !i""erentiate bet7een t7o basic types o" ava progra$s#
applications an! applets:
< pplications: ava applications are co$puter progra$s 7ith the "ull "unctional
range also provi!e! by other progra$$ing languages6
< pplets: The ter$ applet essentially $eans little applicationH6 It usually $eans a
ava applet# a s$all co$puter progra$ that runs in a &eb bro7ser an! is 7ritten
in the ava progra$$ing language6
S% Basis )astTra' &S *00?-
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6(ee tie java ac(itectue
S% Basis )astTra' &S *00?.
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5ava sevices
ll ava co$ponents o" an S% syste$ are 'no7n as a ava cluster6 ava
cluster consists o":
< central1 ava instance 7ith a !ispatcher an! at least one server process6
< The central services# 7hich contain a $essage server an! an enAueue server6
< !atabase "or the central storage o" !ata6
< /ptionally# a!!itional ava instances6
< The cental sevices provi!e the basis "or co$$unication an! synchroni(ation "or
the Fava cluster:
< The messa'e sevice a!$inisters a list o" the !ispatchers an! the server
processes o" the ava cluster6
< The en-ueue sevice a!$inisters logical loc's that are set in a server process by
the e5ecute! application progra$6 It is also use! "or cluster87i!e synchroni(ation6
S% Basis )astTra' &S *00?*
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5ava pocesses
The !ispatcher !istributes inco$ing reAuests to the server processes6
The server process e5ecutes the ava applications6
>very server process is $ulti8threa!e! an! can thus process a large nu$ber
o" reAuests in parallel in contrast to the B% 7or' processes16 )or each!ispatcher there is at least one server processes an! there can be up to ?.
server processes6
The ava $essage service $anages a list o" ava !ispatchers an! server
processes6 It is responsible "or the co$$unication 7ithin the ava runti$e
environ$ent6
The ava enAueue service $anages logical loc's that are set by the e5ecute!
ava application progra$ in a server process6
The So"t7are Deploy$ent Manager SDM1 is the stan!ar! tool use! to install
ava so"t7are co$ponents on the S% &eb S ava6
S% Basis )astTra' &S *00?
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Multiple NetWeave instances *it( AS 5ava
S% Basis )astTra' &S *00?9
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+nstance in A"AP envionment
S% Basis )astTra' &S *0020
Dispatc(e
Messa'e Seve
+nstance +nstance
%ental +nstance
11 The ter$s S%1 instance an! S% 7eb1 application server are o"ten use! as synony$s /
Dispatc(e
Dispatc(e
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+nstances in an A"AP 7 5ava envionment
S% Basis )astTra' &S *002?
Messa'e
Seve +ntenet %ommunication Mana'e
%ental
Sevices A"AP Sc(ema
5A8A Sc(ema
SAP )0+ &eb Bro7ser ; &eb Server
5%o WP WP WP
A"AP 5A8A
SDM
5A8A Seve
Pocesses
A"AP Dispatc(e 5A8A Dispatc(e
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Diffeent types of t(e SAP Web AS
S% Basis )astTra' &S *0022
SAP Web AS A"AP
System:
%omplete +nfastuctue in
*(ic( is A"AP based
applications can be
developed and used/
SAP Web AS 5A8A System:
%omplete +nfastuctue fo
developin' and usin' 52&&
base applications
SAP Web AS A"AP 7 5A8A
#Add9+n$ System:
%omplete +nfastuctue in
*(ic( A"AP based and 52&&
based applications can be
developed and used/ 6(is
installation emp(asies t(e
seamless 5ava A"AP
inte'ation
1
23
3
21
NO6&:
/ne o" the $ain characteristics o" the S% &eb S is that B%
tables# progra$s an! application !ata are store! in the B% sche$a
o" the !atabase 7hile 3 !ata is store! in the 3 sche$a6 ere#
the B% runti$e environ$ent can access the B% sche$a o" the
!atabase# an! the 3 runti$e environ$ent can access the 3
sche$a6 The S% ava Connector is use! "or integrating the B%
environ$ent an! the 3 environ$ent Co16
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Module ta.ea*ays
S% Basis )astTra' &S *002+
The S% &S consists o" an B% engine
an! a 3 engine6
They are constitute! by !i""erent processes in
S% &S rchitecture6 The Message Service an! >nAueue service
co$prise the central services6
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;uestions and Ans*es
S% Basis )astTra' &S *002,
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Module 4: Summay
aving co$plete! this $o!ule# you shoul! no7
be able to:
Interpret the architecture o" S% &eb
pplication Server &S1Describe B% an! 3 %rocesses
I!enti"y the !i""erent types o" S% &S
S% Basis )astTra' &S *002-
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Day <: Module map
Mo!ule ,: )un!a$entals o" S% &S
Mo!ule -: &or' %rocesses an! S% Directory Structure
+ Mo!ule .: Starting an! Stopping o" S% Syste$s
S% Basis )astTra' &S *002.
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Course Title
Wo. Pocesses and SAP Diectoy StuctueModule 3
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Module 3: Objectives
/n co$pletion o" this $o!ule# you shoul! be
able to:
I!enti"y the various co$ponents o" an S%
B% 7or' process
Describe 7or' process $ultiple5ing
%ut in your o7n 7or!s the concept o"
up!ate
processing
%ut in your o7n 7or!s the concept o"
logical loc's
ist the various /S level !irectories in
an S% syste$
S% Basis )astTra' &S *002
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Module 3: A'enda
Topic ?: S% B% 7or' process co$ponents
Topic 2: &or' process $ultiple5ing
Topic +: Concept o" up!ate processing
Topic ,: Concept o" logical loc's
Topic -: /S level !irectories in an S% syste$
S% Basis )astTra' &S *0029
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Pocessin' of use e-uest in SAP system
S% Basis )astTra' &S *00+0
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Functions of t(ee layes
%resentation layer
< S% GI is user inter"ace S% application6 ser reAuests are ta'en# converte! to an
internal "or$at an! "or7ar!e! to S% &eb pplication Server application layer 16
pplication layer : < Dispatcher is the central process o" the application layer S% &S16
< It enables S% to co$$unicate 7ith the presentation server by $anaging the
in"or$ation e5change bet7een the S% GI an! the in!ivi!ual processes 7ithin S%
that e5ecute 7or'6
< It "unctions as a resource $anager "or applications 7ritten in B% "or !i""erent
operating syste$s6
Database layer: %rocessing user reAuests $ay involve rea!ing# processing an!
7riting !ata "or$ the B% sche$a o" the !atabase6 So# every 7or' process is
!irectly connecte! to the B% sche$a o" !atabase6
S% Basis )astTra' &S *00+?
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)ap(ical epesentation of t(e functions of t(ee layes
The users can be assigne! !i""erent 7or' processes every ti$e they reAuest "or a service6
S% Basis )astTra' &S *00+2
D
B
M
SG
>
&or' processes
Bu""ers
Dispatcher
pplication server
To !atabase server
)ro$ presentation server
=oll area
Aueue
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+ntenet communication mana'e #+%M$
&hen the user reAuest rise "ro$ a 7eb bro7ser instea! o" S% GI# Internet
Co$$unication Manager ICM1 accepts 7eb reAuests "ro$ user6
=eAuests "or the ava environ$ent is sent to the ava !ispatcher 7hich "or7ar! it
to the ava Server %rocesses S%16
S% $ay connect to the ava sche$a o" the !atabase i" the reAuest necessitates
it6 ava !ispatcher is use! to return its reply to the ICM# 7hich in turn replies to
the user6
&hen reAuests are "or B% environ$ent# ICM "or7ar!s it to the B%
!ispatcher 7hich !oes not !i""erentiate bet7een an ICM reAuest or S% GIreAuest6
The upper layer is transparent to the application layer6 The reAuests are returne!
using ICM to the user6
S% Basis )astTra' &S *00++
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Stuctue of a *o. pocess
typical 7or' process consist
o" internal $e$ory# tas'
han!ler# screen processor#
B% Interpreter an!
Database Inter"ace6
Tas' han!ler coor!inates the
actions 7ithin a 7or' process6
S% Basis )astTra' &S *00+,
&or' %rocess
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Memoy mana'ement and oll9in ! oll9out
S% Basis )astTra' &S *00+-
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Memoy aeas
T7o $e$ory areas e5ist 7ith any 7or' process:
Main $e$ory
< Main $e$ory area 7hich is available e5clusively to
a single 7or' process6
< Me$ory areas that can be use! by all 7or'
processes6
Share! $e$ory !ata contains tables# progra$
bu""ers an! screens6
S% Basis )astTra' &S *00+.
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6ypes of *o. pocesses
Di""erent types o" 7or' processes 7hich e5ist in a S% 7eb S are as "ollo7s:
S% Basis )astTra' &S *00+*
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Wo. pocess
S% Basis )astTra' &S *00+
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Dialo' pocessin'
Dispatcher !istributes all the user reAuests# that it receives "ro$ the available
!ialog 7or' process on the S% &eb S6
The !ialog 7or' process is selecte! by !ispatcher "irst rolls in the user conte5t6
Then it processes user reAuest 7hich $ay involve !ata "ro$ the !atabase or
"ro$ the bu""ers in the share! $e$ory6
"ter co$pletion o" the !ialog step# the 7or' process returns the result to the
!ispatcher# rolls out conte5t to the share! $e$ory an! beco$es available "or
ne5t reAuest6
S% Basis )astTra' &S *00+9
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Wo. pocess multiple=in'
S% Basis )astTra' &S *00,0
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0pdate *o. pocess
%rinciple o" asynchronous up!ates
S% Basis )astTra' &S *00,?
%B/
?00
SC=>>
4?00
%I%B/ %B/
Screen
??0%I
SC=>>
4 ?0-%I
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0pdate pocess
S% Basis )astTra' &S *00,2
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%lassification of update pocess
p!ate process can also be classi"ie!
!epen!ing on their priority6
< %ri$ary# ti$e critical 3?1 up!ate
$o!ules are ti$e critical
< Secon!ary# non8critical 321 up!ate
$o!ules !uring progra$$ing are less
ti$e critical
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6emination duin' data updates
)or any error occurs !uring up!ating proce!ure#
up!ate co$ponent ter$inates an! users are
noti"ie!6
I" a !ialog 7or' process ter$inates 7hile 7ritinginto 3BJ table# the table 7ill only contain !ata6 The
table 7ill not be up!ate! ne5t ti$e i" the syste$
restarts all entries an! 7ill auto$atically be
!elete!6
Transaction SM?+ provi!es syste$ a!$inistrators7ith analysis tolls to han!le ter$inate! up!ates6
"ter the error is recti"ie! # !ue to 7hich up!ate
has ter$inate!# the user shoul! restart the
syste$6
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SM ><: 0pdate e-uests
S% Basis )astTra' &S *00,-
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&n-ueue *o. pocess
S% Basis )astTra' &S *00,.
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?oc. ovevie*
)or $aintaining consistency over S% syste$ obFect !ata $ust not be
change! si$ultaneously by !i""erent users6
)ro$ !atabase perspective# every !ialog step "or$s a physical an! logical
unit# that is# the !atabase transaction# so that loc' $anage$ent in !atabasecan only coor!inate this 'in! o" transaction6
)ro$ S% perspective# this is insu""icient because S% transactions are
generally $a!e up o" several !ialog steps6 S% syste$s nee! to have their
o7n loc' $anage$ent6
%rinciple:
S% progra$s $a'e loc' entries "or !ata recor!s to be processe! in a loc' table6
oc' entries can only be $a!e i" none alrea!y e5ist "or the table entries to be
loc'e!6
S% Basis )astTra' &S *00,*
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@e-uestin' and eleasin' loc.s
S% Basis )astTra' &S *00,
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?o'ical loc.s
The enAueue 7or' process a!$inisters the logical loc's on S% transactions
using a loc' table in the $ain $e$ory o" the SAP Web AS on 7hich the
enAueue 7or' process is running6
I" the !ialog 7or' process that is han!ling the user reAuest an! the enAueue7or' process are not running on the sa$e SAP Web AS# then these t7o 7or'
processes co$$unicate by $eans o" the $essage server6
)or the syste$ to e5ecute loc' reAuests# the loc' obFect $ust be !e"ine! in
the B% Dictionary6
The loc' obFect contains tables 7hose entries are to be loc'e!6
S% Basis )astTra' &S *00,9
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6ypes of loc.s
&rite loc's loc' $o!e K1 are only assigne! i" no other loc's e5ist "or the !ata
recor!s reAuire! no a!!itional loc's are then per$itte! "or these entries6
>5ten!e! 7rite loc's loc' $o!e >1 are only assigne! i" there are no loc's on
the !ata recor! yet6 /nly the loc' o7ner can cu$ulatively assign "urther 7rite
loc's6
Share! loc's loc' $o!e S1 are "urther share! loc's# but no 7rite loc's can be
reAueste! "or this obFect6
/pti$istic loc' loc' $o!e 6/61: These are available since SAP web AS 6.40.
< The "irst loc' types are pessi$istic loc's6
< The opti$istic loc's are inten!e! "or those cases 7here the !ata is !isplaye! in
change! $o!e 7ithout being change! as 7ell6
< I" any changes are $a!e# the con"lict is !eter$ine! an! resolve! at the sa$e ti$e6
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%ollision c(ec. fo loc.s
I" there is a collision# the user o" the!ialog transaction receives a $essagethat the obFect is currently loc'e! byanother user6
)or non8!ialog 7or' process the loc'reAuest is $a!e again at a later ti$e6
&hen a loc' obFect is success"ullyactivate! in the B% Dictionary# thesyste$ generates an >4E>>"unction $o!ule an! a D>E>>"unction $o!ule 7ith the respectivena$e:
>4E>>LSperrobFe'tna$eND>E>>LSperrobFe'tna$eN
S% Basis )astTra' &S *00-?
The syste$ chec's 7hether a
loc' reAuest colli!es 7ith an
e5isting loc'6
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SM >2: ?oc. enty list
S% Basis )astTra' &S *00-2
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@eleasin' loc.s
oc's that are set by a progra$ can be release! by the sa$e progra$ or the
up!ate process releases the loc'# once changes in !atabase are $a!e6
oc's 7hich are passe! to the up!ate process are also 7ritten in a "ile at the
/S level an! can be restore! i" the enAueue server goes !o7n6
There are t7o 7ays o" !eleting loc's:
< >n!ing the user session in the user overvie7 transaction SM0, or Tools →
Administration → Monitor → System Monitoring → User Overview 16 This also
results in the original loc' o7ner leaving the transaction calle! an! thereby
releasing all loc's hel!6
< Manually !eleting the loc' entries in SM?26 It $erely !eletes the loc' entry "ro$ the
loc' table theoretically enabling several users to change the sa$e !ata recor!s
si$ultaneously16
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SM 4: 0se list
S% Basis )astTra' &S *00-,
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Sevices
Message server:
< It han!les the co$$unication bet7een the !istribute! !ispatchers 7ithin the B%
stac' o" an S% syste$# thereby enabling scalability o" several parallel application
servers6
< The $essage server is con"igure! only once per S% syste$6 The B% $essage
server provi!es the SAP Web Ali!ation Server 7ith a central $essage service "or
internal co$$unication "or e5a$ple# "or starting up!ates# reAuesting an! re$oving
loc's# triggering bac'groun! reAuests16
< TheB%1 !ispatchers "or the in!ivi!ual SAP Web Ali!ation Server
co$$unicate via the B%1 $essage server6
The gate7ay server G&1: It enables co$$unication bet7een S% syste$s#
or bet7een S% syste$s an! e5ternal application syste$s6 There is one per
!ispatcher6
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Sevices #continued$
The Internet Co$$unication Manager:
< ICM1 enables S% syste$s to co$$unicate !irectly 7ith the Internet6
< The ICM receives reAuests "ro$ the Internet an! "or7ar!s the$ to the S% syste$
"or processing6 In !oing so# it recogni(es 7hether the reAuest is a call o" abusiness server page or a ava application an! "or7ar!s this reAuest to the B%
runti$e environ$ent or the ava runti$e environ$ent6
< It can also !irect TT% reAuests "ro$ an S% syste$ to a &eb server an! sen!
the response bac' to the S% syste$6
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SAP diectoy stuctue
S% Basis )astTra' &S *00-*
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SS diectoy stuctue
S% Basis )astTra' &S *00-
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SS diectoy stuctue #continued$
S% Basis )astTra' &S *00-9
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Module ta.ea*ays
S% Basis )astTra' &S *00.0
n 7or' process consists o" various
co$ponents li'e Internal Me$ory# tas' an!ler#
Screen %rocessor# B% Interpreter an!
Database Inter"ace6
Me$ory areas are Main Me$ory an! Share!
Me$ory6
&or' process $ultiple5ing is an essential
e""iciency i$proving process o" S%6
There are !i""erent types o" loc's6
The S% Directory structure has $any "ol!ers
an! sub"ol!ers associate! 7ith it6 It is i$portant
to 'no7 7here the log "iles are store!6
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;uestions and Ans*es
S% Basis )astTra' &S *00.?
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Module 3: Summay
aving co$plete! this $o!ule# you shoul! no7
be able to:
I!enti"y the various co$ponents o" an S%
B% 7or' process
Describe 7or' process $ultiple5ing
%ut in your o7n 7or!s the concept o" up!ate
processing
%ut in your o7n 7or!s the concept o" logical
loc's
ist the various /S level !irectories in an S%
syste$
S% Basis )astTra' &S *00.2
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Mo!ule ,: )un!a$entals o" S% &S
Mo!ule -: &or' %rocesses an! S% Directory Structure
+ Mo!ule .: Starting an! Stopping o" S% Syste$s
Day 2: Module map
S% Basis )astTra' &S *00.+
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Statin' and Stoppin' of SAP SystemsModule
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Module : Objectives
/n co$pletion o" this $o!ule# you shoul! be
able to:
Describe the start seAuence o" an B%O3
Syste$
naly(e ho7 to start an! stop an S%
syste$ using S%
MMC# 3 MC or
co$$an! line argu$ent
=ecall the 3 instance "ro$ B%inter"ace
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Module : A'enda
Topic ?: Start seAuence o" an B%O3 Syste$
Topic 2: Start an! stop an S% syste$ using S%
MMC# 3 MC or co$$an! line argu$ent
Topic +: =estart 3 instance
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Stat pocess of SAP System #A"AP 7 5ava$
S% Basis )astTra' &S *00.*
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Statin' t(e SAP system
S% Basis )astTra' &S *00.
/perating syste$: &in!o7s 2000;200+
Microso"t Manage$ent Console using
S% MMC Snap8In
Central instance /ther instance
DB
+
,
?
2
si!Na!$
I" not starte!
log8on
Start
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System stat: ?o's
S% Basis )astTra' &S *00*0
MMC 7ith S% MMC
Snap8In
Microso"t &in!o7s
S%si!NLno6
S%/sC/
Database Services
Security log Syste$ log pplication
log
Services
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Stat pocess lo''in' in t(e system
S% Basis )astTra' &S *00*?
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Poblem analysis
S% Basis )astTra' &S *00*2
S% MMC Snap8In
DB
S%I4ST4C>
>vent 3ie7er
Database error log "iles
S%si!Ninstance no6
Database service
S% trace "iles
S% syste$ log
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SM2>: System lo's
S% Basis )astTra' &S *00*+
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Stoppin' SAP systems
&hy P: )or $aintenance purposes or a"ter changing syste$ para$eters# be"ore
installing 'ernel patches# or allo7ing har!7are upgra!es to be carrie! out6
Things to be 'ept in $in! be"ore stopping:
S% Basis )astTra' &S *00*,
Chec' the status o"
Sen! a syste$ $essage SM02
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Stoppin' t(e SAP system
S% Basis )astTra' &S *00*-
CCMS
S% Instance
S% Syste$ !$in
S% MMCSnap8in
si!Na!$
Database Tools
DTBS>
S%/sC/
sapsi!NLinst6no6N
Database Services
&in!o7s ServiceControl Manager
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SAP Micosoft Mana'ement %onsole: Windo*s
S% MMC provi!es a co$$on "ra$e7or' "or syste$ $anage$ent6
It allo7s various tools that 7ere previously i$ple$ente! separately to be
integrate! in a co$$on user8inter"ace enabling centralise! syste$
$anage$ent6
It provi!es an environ$ent "or incorporating an! accessing tools6
Tools are integrate! in the S% MMC in the "or$ o" snap8ins that allo7
stan!ar!ise! access to "unctions6
S% Basis )astTra' &S *00*.
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Sevices concept in Windo*s
S% Basis )astTra' &S *00**
Database process S% process
4T service control $anager
=egistry
/perating syste$: Microso"t &in!o7s
DB services S% services/S services
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0sin' SM+%M to estat 5ava
In the case o" S% 4et&eaver S
B% O ava# it is possible to allo7
the B% stac' to continue running#
an! only stop an! then restart the
ava stac'6 ou !o this using transaction
SMICM6
ou can either start ; stop the local1
instance onto 7hich you are logge!
in the transaction SMICM orstart;stop all the instances in the
global1 ava cluster6
S% Basis )astTra' &S *00*
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0sin' SM+%M to estat 5ava #continued$
S% 4et&eaver S ava is starte! an! stoppe! in the sa$e 7ay as S%
4et&eaver S B% O ava by $eans o" the S% Manage$ent Console ;
ava MC6
S% Basis )astTra' &S *00*9
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5A8A M%
S% MC is a ava application 7hich is supplie! as a ava applet as stan!ar!6
ou si$ply use a &eb bro7ser to !o this6
To use the applet correctly# you reAuire a => ava =unti$e >nviron$ent1 o"
version ?6, or higher6 In a!!ition# the correspon!ing ava plug8in "or the
bro7ser $ust be activate! correctly6
To start S% MC a"ter installing the correspon!ing S% 4et&eaver S# enter
the belo7 = in your bro7ser:
< "tt#$$%"ost name&#'%instan!e number&()
S% Basis )astTra' &S *000
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0ni=
og on in 4IK as a user 7ith S% a!$inistrator authori(ation si!Na!$16 To
start the central instance# call the shell script startsapLhostNLinstance noN in
the ho$e !irectory o" the si!Na!$ user6
The script startsap "irst starts the saos!ol process 7hich collects statistical !ata
"or the operating syste$ that it provi!es to the S% syste$6
The ne5t step is a chec' to see i" the !atabase is running6 I" not# the script
start!b is calle! to start the !atabase6
The "inal step starts all o" the processes "or the instance $essage server#
!ispatcher# 7or' processes# an! so on16 "ter the central instance is starte!# you
can optionally start other instances6 The startsap script can be calle! 7ith the"ollo7ing options:
< DB: starts the !atabase syste$
< =+: starts the instances an! associate! processes "or the instance
< : starts the !atabase syste$ an! the instance !e"ault setting# can be o$itte!1
S% Basis )astTra' &S *00?
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0ni= #continued$
&hen you stop the S% syste$# you shoul! "irst stop all !ialog instances an!
then stop the central instance6 ou have t7o options "or !oing this:
)ro$ the S% syste$ using the CCMS Control %anel6 og on un!er 4IK as
the S% a!$inistrator si!Na!$1 at operating syste$ level an! enter the
co$$an! stopsap "ro$ your ho$e !irectory6
The stopsap script can be calle! 7ith the "ollo7ing options:
< DB: stops the !atabase syste$ 7ith the help o" the stop!b script
< =+: stops the instances o" the S% syste$
< : stops the !atabase syste$ an! the instance !e"ault setting# can be o$itte!1
S% Basis )astTra' &S *002
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OS!4
ogon on to the S;,00 syste$ 7ith the S% user pro"ile "or a!$inistrators6
The authori(ations o" the group pro"ile SIDN/%=G=% are reAuire! "or this
user such as user pro"ile SIDN/)= or SIDN/%= 16
>nter the S;,00 co$$an! ST=TS% an! reAuest para$eters 7ith ),6
n!er S% Syste$ ID# enter the na$e o" your syste$ such as D>316
n!er =;+ Instance# enter the instance nu$ber such as 0016 To start all
instances on one or $ore hosts# choose J6
n!er =;+ Instance ost 4a$e# enter the na$e o" the host on 7hich the
instance is to be starte!6 To start all instances on all hosts# choose J6 ou$ust also have selecte! J un!er =;+ Instance61
S% Basis )astTra' &S *00+
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OS!4 #continued$
Con"ir$ your entries 7ith >4T>=6 The subsyste$ =+Lnn is then starte! "or
each starte! instance nnN is the instance nu$ber16 ll associate! S%
services are starte! together 7ith the subsyste$ such as !ispatcher# 7or'
processes# spool processes16
>nter the S;,00 co$$an! &=QCT/B SBS=+LnnN1 to chec' 7hetherthe S% syste$s1 7ere starte! correctly6
The syste$ !isplays a screen 7ith the colu$n Status at the right8han! si!e6 I"
an S% syste$ 7as starte! correctly# the "irst line o" this colu$n shoul!
contain the value *U+ running1# S,-W 7aiting1# or ,/W 7aiting "or
co$pletion o" unloc'ing16 It can ta'e a "e7 $inutes "or the "ile syste$ to reachthis status6
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OS!4 #continued$
ogon on to the S;,00 syste$ 7ith the S% user pro"ile "or a!$inistrators
SIDN/)= or SIDN/%=16
>nter the S;,00 co$$an! ST/%S% an! reAuest para$eters 7ith ),6
n!er S% Syste$ ID# enter the na$e o" the S% syste$ that you 7ant tostop6
n!er =;+ Instance# enter the nu$ber o" the instance that you 7ant to stop#
such as 906
To stop all instances on one or $ore hosts# choose J6
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OS!4 #continued$
n!er =;+ Instance ost 4a$e enter J/C to stop one or $ore instances
on the local host6 To stop all instances on all hosts# choose J6 ou $ust
also have chosen J un!er =;+ Instance61
I" you enter J>S un!er &ait "or instance to en!# the co$$an! ST/%S%
7aits until the S% instance is shut !o7n be"ore stopping the S% syste$6The instance is regar!e! as shut !o7n i" the nu$ber o" active instance user
Fobs in the instance subsyste$# other than the S%/SC/ Fob# is (ero61
n!er Ma5i$u$ 7ait ti$e secon!s1# you can enter the $a5i$u$ ti$e that
the co$$an! shoul! 7ait "or the instance to be shut !o7n6 The !e"ault value
is ?20 t7o $inutes16 I" it ta'es longer than t7o $inutes "or the instance to beshut !o7n# an e5ception $essage is sent6 Con"ir$ your entries 7ith >4T>=6
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Module ta.ea*ays
S% Basis )astTra' &S *00*
The S% %rocesses "ollo7 a !e"inite start
seAuence6
The log "iles are locate! in speci"ic "ol!ers in an
S% syste$6
Syste$ can be stoppe!;starte! using S%
MMC in 7in!o7s6
Co$$an! line argu$ent or 3 $anage$ent
console e5ists "or other syste$s6 S 3
usage type1
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;uestions and Ans*es
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Module : Summay
aving co$plete! this $o!ule# you shoul! no7
be able to:
Describe the start seAuence o" an B%O3
Syste$
naly(e ho7 to start an! stop an S% syste$
using S% MMC# 3 MC or
co$$an! line argu$ent
=ecall the 3 instance "ro$ B% inter"ace
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Day 2: Summay
t the en! o" !ay ?# 7e see that you are no7 able to:
Interpret the "un!a$entals o" S% &S
Describe 7or' processes an! S% !irectory structure
naly(e start an! stop o" S% syste$