System Copy on Oracle

System Copy on Oracle Bettina Weissinger-Stelzel

June, 2013 Customer

2013 SAP AG. All rights reserved. 2 Customer

Disclaimer

The information in this presentation is confidential and proprietary to SAP and may not be disclosed without the permission of SAP. This presentation is not subject to your

license agreement or any other service or subscription agreement with SAP. SAP has no obligation to pursue any course of business outlined in this document or any

related presentation, or to develop or release any functionality mentioned therein. This document, or any related presentation and SAP's strategy and possible future

developments, products and/or platforms directions and functionality are all subject to change and may be changed by SAP at any time for any reason without notice. The

information on this document is not a commitment, promise or legal obligation to deliver any material, code or functionality. This document is provided without a warranty of

any kind, either express or implied, including but not limited to, the implied warranties of merchantability, fitness for a particular purpose, or non-infringement. This

document is for informational purposes and may not be incorporated into a contract. SAP assumes no responsibility for errors or omissions in this document, and shall have

no liability for damages of any kind including without limitation direct, special, indirect, or consequential damages that may result from the use of this document. This

limitation shall not apply in cases of intent or gross negligence. All forward-looking statements are subject to various risks and uncertainties that could cause actual results

to differ materially from expectations. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of their dates, and they

should not be relied upon in making purchasing decisions.


System Copy: Installation / System Copy Tools

System Provisioning Manager Installation / System Copy Tools based on NW

Product-independent, therefore only on SAP Service Marketplace (no longer on the installation master)

Might need to use additional DVDs, such as kernel DVD, SAP Note 1680045

New version every 3 months, patches as required always use the newest tools

http://service.sap.com/sltoolset -> Software Logistics Toolset 1.0 Software Provisioning Manager


Installation / System Copy Tools

http://service.sap.com/sltoolset -> Software Logistics Toolset 1.0 Software Provisioning Manager

Guides are further down the page

Download the tools


Definition System copy

Reasons for system copy:

For upgrade tests

Change of hardware or database

Unicode conversion

Refresh data of a development system

Types of system copy:

Homogeneous system copy OS or DB remain the same

Procedure: SAPinst with backup/restore or R3load

SAPinst + different copy procedure for DB

e.g. O2O, triple O, RMAN duplicate- or storage-based system copy

Heterogeneous system copy OS and / or DB different

Procedure: SAPinst with R3load or Oracle-specific procedure such as O2O

Triple O, RMAN duplicate for OS change

Unicode Conversion only ABAP

Homogeneous or heterogeneous system copy with Unicode conversion


System Copy: ABAP Secure Store

As of Release 7.40 default in older versions optional (SAP Note 1639578)

SAPinst 7.40: DBConnect only via ABAP Secure Store

SAPinst < 7.40 can be activated in dialog (with 7.20 SAP kernel)

What is it? Encrypted storage for DB user with password

SAPUSER tables are no longer created

OPS$Users are required by BR*Tools and are therefore created by SAPinst. If a BR*Tools-specific Secure Store

is set up (SAP Note 1764043), the OPS$Users can be deleted. Remote_os_authent should be set to false.

Note for system copy, especially for backup/restore, SSFS_.DAT stores, for example, schema user and password

How can it be recognized? Environment variable and in DEFAULT.PFL.

RSEC_SSFS_DATAPATH=/usr/sap/QO1/SYS/global/security/rsecssfs/data

RSEC_SSFS_KEYPATH=/usr/sap/QO1/SYS/global/security/rsecssfs/key

rsdb_ssfs_connect=0 (inactive) or 1 (active)


System Copy: Oracle Compression

Prerequisites:

Oracle 11.2.0.2 or higher

SAP Kernel 6.40 or higher. Caution: DDIC support as of 7.0x e.g. 700 SP21, see SAP Note 1436352

Software Provisioning Manager by sltoolset (SAP Service Marketplace) and newest versions of R3ldctl and R3load

Table compression (ACO):

SAPinst supports table compression at tablespace level for installation or system copy i.e. compress for OLTP can be

defined with SAPinst at tablespace (TSP) level

Table level with BR*Tools (BRSPACE 7.20 or higher)

Index compression:

No SAPinst support. Supported in BR*Tools or according to SAP Note 1109743


System Copy SMIGR_CREATE_DDL

ABAP report executable on source system

Must be executed before every report on the source system

Generates R3load SQL files for Oracle partitions (BW systems)

Generates R3load SQL files for exception lists (table compression)

ABAP: copy as it is

Report determines SQL statements for compressed tables if TSP uncompressed or uncompressed tables if the TSPs are compressed.

Java: standard

So far there is no SAP DDIC information on the compression of tablespaces or tables

SAP Note 1436352 Oracle 11g Advanced Compression for SAP Systems


Source system Procedure Target system

No ORACLE DB ORACLE, compression after copy with BR*Tools

ORACLE ORACLE

Uncompressed Uncompressed

TSP compression

TSP compression

Tables are

compressed

Tables are

compressed (TSP

uncompressed)


Backup / restore or

R3load + manual check which TSPs are

compressed, then compress these again with

SAPinst for the target system

Standard system copy

(R3load)

Standard system copy

(R3load + backup/restore)

Backup / restore or

SMIGR_CREATE_DDL + standard system copy

(R3load)


Source system Procedure Target system

Uncompressed TSP compression

Uncompressed

Tables compressed

Tables compressed Uncompressed


Standard system copy (R3load) with TSP

compression during backup / restore after copy

compress tablespaces

No support in standard system copy (R3load),

Compression with BR*Tools (after copy) or with

manual workaround

Backup / restore + compress with BR*Tools after copy

No support in standard system copy (R3load), only

possible with workaround e.g. adapt .SQL

Backup /restore + after copy, uncompress with

BR*Tools


System Copy: Oracle compression

Source system is not compressed -> target system compressed:

Tablespace level:

SAPinst + R3load coding takes account of objects that must not be compressed

negcpr: im DDLORA*TPL (generated from R3ldctl during export)

.

......

negtab: LICHECK MLICHECK negdat: LICHECK MLICHECK negind: LICHECK~0 MLICHECK~0 LICHECK^0 MLICHECK^0 negvie: negcpr: ARFCSSTATE ARFCSDATA ARFCRSTATE TRFCQDATA TRFCQIN TRFCQOUT TRFCQSTATE QRFCTRACE QRFCLOG NRIV



Source system uncompressed -> target system with individual compressed tables (idea):

SMIGR_CREATE_DDL (source system) R3load (target system)

BRTOOLS (source

system)

APPL1.SQL

ddl.sql

Manual

comparison of

files

APPL1.SQL

APPL0.SQL

USER.SQL

APPL1.TSK

Generates tables with

CREATE statement

APPL1.STR

Advantage: conversion long BLOB, as well as index compression, can also be performed

Disadvantage: manual comparison of SQL files very resource-intensive for many

tables



Generated DDL statements with compression using BR*Tools:

3 - Segment management ->

1 - Reorganize tables ->

6 ~ Table names (table) ............ [ARFCRSTATE]



Example: APPL1.SQL from SMIGR_CREATE_DDL



Example: ddl.sql generated by BRTOOLS


System Copy: Oracle compression

Example: adapting .SQL files

Add generated DDL statements to .SQL files (observe sort order by table name), creating one .SQL file for the TABART of

each of the tables to be compressed -> R3load uses these SQL statements for the create.


Index compression for a small number of indexes: determine the compression rate according to SAP Note 1109743, create new TPL

Assign these to the relevant package (can be done with configuration of the migration monitor using ddl_mapping file make sure the objects are in their own package).

crepky: CREATE UNIQUE INDEX &pri_key& ON &tab_name& ( &key_fld& /-, ) TABLESPACE &tablespace& STORAGE (INITIAL &init& NEXT &next& MINEXTENTS &minext& MAXEXTENTS &maxext& PCTINCREASE &pctinc& ) PARALLEL NOLOGGING COMPRESS COMPUTE STATISTICS ; ALTER INDEX &pri_key& NOPARALLEL LOGGING ; ALTER TABLE &tab_name& LOGGING



System Copy: Oracle Compression Additional Information

Should not be compressed:

Tables with more than 255 columns (Oracle requirement)

SAP pool tables (for example, ATAB, UTAB)

SAP cluster tables (for example, CDCLS, RFBLG)

INDX-type tables (for example, BALDAT, SOC3)

The ABAP source and ABAP load tables REPOSRC and REPOLOAD

The update tables VBHDR, VBDATA, VBMOD, and VBERROR

The RFC tables ARFCSSTATE, ARFCSDATA, ARFCRSTATE, TRFCQDATA, TRFCQIN

TRFCQOUT, TRFCQSTATE, QRFCTRACE, and QRFCLOG NRIV

SAP Note

SAP Note 1431296 LOB conversion and table compression with BRSPACE 7.20


Determine the compressed tablespaces: Select tablespace_name, compression, compressed_for from dba_tablespaces;

Determine the compressed tables:

Select tables_name, compression, compressed_for from dba_tables;

Determine the index-like tables:

SELECT OWNER, TABLE_NAME FROM DBA_TAB_COLUMNS WHERE OWNER LIKE 'SAP% AND OWNER 'SYS AND OWNER 'SYSTEM AND TABLE_NAME NOT LIKE 'BIN$% AND COLUMN_NAME IN ('RELID', 'SRTF2', 'CLUSTR', 'CLUSTD') GROUP BY OWNER, TABLE_NAME

HAVING COUNT(*) = 4 ORDER BY OWNER, TABLE_NAME;

Determine the tables with LONG or LONG RAW:

Select table_name from dba_tab_columns where OWNER=SAPSR3 and data_type like LONG%;

Determine tables with > 255 columns:

SELECT TABLE_NAME FROM DBA_TAB_COLUMNS WHERE OWNER LIKE 'SAP%' GROUP BY TABLE_NAME

HAVING COUNT(*) > 254 ORDER BY TABLE_NAME;

System Copy: Oracle Compression some sql statements


Check which tables have been compressed select a.table_name, b.compress_for, count (a.table_name) as columnAnz from dba_tab_columns a JOIN dba_tables b ON

a.table_name = b.table_name WHERE compress_for = 'OLTP' GROUP BY a.table_name, b.compress_for

HAVING count (a.table_name) > 255;

SAP Note 1438410 with script Segments_tables_CompressionExceptions

System Copy: Oracle Compression some sql statements

Questions?

System Copy on Oracle

Documents

Transcript of System Copy on Oracle