T-code about baisc

Http://silverw0396.javaeye.com/blog/229321

 

I have seen many versions, which are rich in layers and look comfortable.

 

SAP data transactions

 

Object	Tstc	Menu path	Items
ABAP dictionary	Seu	-	R/3 repository Browser
	SE12	-	Display ABAP dictionary
	SE11	-	Maintain ABAP dictionary
	SE14	-	Utilities for ABAP dictionary tables
	SE15	-	ABAP Repository Information System
Profiles & Parameters	STMs	-	Transport Management System
	Tu02	-	Parameter Changes-display active parameters and a history of changes
	Rz10	-	Maintain profile parameters (by profile)
	Rz11	System> utilities> runtime analysis> Execute	Maintain profile parameters (by parameter). R/3 needs the R/3 profile parametersABAP/atrapathAndABAP/atrasizequotaActivated when the R/3 system is installed.
	Sm63	-	Display or maintain operating modes
	Snro	-	Maintain number range objects.
	Sm56	-	Reset or check the number range Buffer
Jobs	Db13	-	DBA planning calendar
	Rz01	-	Job Scheduling Monitor
	Sm37	-	Background job Overview
	Sm39	-	Job Analysis
	Sm65	-	Execute tests to analyze background processing
Users	Sm51	-	List defined sap users
	Sm04	-	User Overview
	Al08	-	Global user overview-Number of users logged onto sap.
	Smlg	-	Maintain logon groups
Directories	Al11	-	Display sap Directories
	Al18	-	Local filesystem Monitor (equivalent to UnixDF-k | more)
Documents	ST14	-	Application Analysis-statistics relating to business document volume
-	Bale	-	Ale administration and monitoring
Alerts	Rz08	-	SAP alert Monitor

 

Performance-related transactions by system layer
This table repeats what is shown by specifying a sap transaction code or a one of these menu paths:

• Tools> Administration> monitor> Performance (abbreviated as "tamp> ")
• Tools> CCMs> control/monitoring> Performance menu

 

 

Layer	Tstc	Menu path	Items
Network	St08	-	Network Monitor
	St09	-	Network alert Monitor
	Sm58	-	Asynchronous RFC Error Log
Requests	Sm13	-	Display update requests and resolve errors
	Sm59	-	Display or maintain RFC destinations
Instances	Rz02	-	Network Graphics for R/3 instances
	Rz04	-	Maintain R/3 instances
Servers	Sm51	-	List of servers
	Rz03	-	Control Panel for operation modes and server status
OS	Sm02	-	Display SAP system messages
	Sm21	-	System Log
	Sm69	-	Maintain external operating-system commands
	Sm49	-	Execute external operating-system commands.
	St06	Tamp> operating system> Local	Operating system monitor reports load on the CPU and the physical main memory. (such as what is reported by Unix CommandLsattr-E1 sys0).
	St07	Tamp> operating system> remote	Application monitor reports load on the CPU and the physical main memory by application.
APP Server	ST02	Tamp> setups/Buffers	R/3 memory configuration Monitor (also known as the function setups & tune buffers ). its Tune summary reports load on R/3 buffers and other memory areas. buffer hit ratio = buffer object reads/logical requests. poor buffer Quality = saved database cballs/(Database cballs + saved database cballs)
	Stat	-	Single Statistics records on the application server.
Work Processes	Sm66	CCMS> control/monitoring> Work Process Overview or Tamp> exceptions/users> active users> all processes.	Systemwide Work Process Overview
	Sm50	Tamp> System Monitoring> services>Process Overview	Local work process load (CPU utilization ). Shows the currently executing WPS on a dialog instance.
	St03	Workload distribution Monitor	A technical analysis uses this monitor to identify and analyze problems in the database, R/3 memory management, or R/3 buffers. An application analysis uses this monitor to identify and analyze transactions, programs, and users that place a heavy load on the system.
DB	Al02	-	Oracle Database Monitor
	St04	CCMS screen that displays Oracle database activity.	Database Performance MonitorDisplays load on the database buffers, database locks, wait situations, read and write access to hard disks, and SQL statements.
	DB02	CCMS> control/monitoring> Performance menu> database> tables/indexes> database allocation> detail analysis (consistency check)	Analyze tables and indexes (Missing database objects and space requirements ). database performance: database allocation monitor, check table within SQL Server, the DBCC checkdb command locks user tables, indexes and system tables when running. it is very I/O intensive and shoshould therefore not be run during normal operation, but at times when the system load is low. for more information, see sap note 142731 DBCC checks of SQL Server.
	Db12	CCMS> dB administration> Backup logs> CCMs monitoring tool> Backup history> logs backup.	Overview of backup logs (DBA protocols). In Backup Restore information list, find the largest transaction log backup. Select a row and thenHistory infoTo find the number of pages backed-up. calculate how much free space is left on the transaction log disk by subtracting the amount of space used in the transaction log is the number of dumped pages, multiplied by 8 KB. the SAP log file is initially created with a default size of 1 GB, with the smallest disk normally 9 GB.
DB tables	Al12	-	Display table buffer (buffer synchronization)
	Db05	-	Table Analysis
	Db20	-	Generate tables statistics
	St10	Tamp> Setup/buffers> cballs	Table Access statistics
	SE16	-	Data Browser for displaying table contents.
	Sm31	-	SAP table maintenance
	Se13	Stun> Setup/buffers> goto> current local data> table buffers> single record	To specify whether or not a table shocould be buffered.
DB SQL	St05	System> utilities> SQL trace	Start, stop, or view SQL trace enqueue trace, or RFC trace within ABAP programs for detailed analysis.
	St11	-	Display developer traces.
	Se30	-	ABAP trace
	St22	-	ABAP runtime error analysis and dump listings
	ST01	-	R/3 System trace
Locks & enqueues	Sm01	-	Lock transactions
	Sm12	-	Display and delete R/3 enqueues

 

Smlg provides average response times of the overall system.

St03n provides response times.

System maintenance jobs

 

Job	Description
Rsbtcdel	Clean the old background job records
Rsdbcreo	Clean batch input session log
Rspo0041	Removing old spooling objects
Rssnapdl	Clean the old ABAP error dumps

 

Table maintenance

To copy tables into SS clients, invoke rscltcop

To make table adjustments when SS clients, rsavgl00

To invoke the substitution/validation utility, invoke rgugbr00

To transport sapscript files stored ss systems, rstxscrp

To release batch-Input sessions automaticlly. rsbdcsub

R/3 tablespaces

Type	Tablespace	Contains tables	Size	Activity
Transaction tablespaces	PSAPBtabD	Holds sap transaction tables holding order headers, line items, purchase orders, etc.	Large	Highest
	PSAPStabD	Master Data and transparent tables with high Write activity such as item master, customer data, pricing, etc.	Largest	Highest
	PSAPUser1D	Defined to hold user customization (customer tables) not defined with the SAP software.	Depends	Depends
	PSAPVb0101D & PSAPVb0102D	-	Large	Very high
Basis tablespaces	PSAPDictD	ABAP Data Dictionary (usually cached in memory due to frequent reference ).	Small	Low
	PSAPLoadD	ABAP report loads and screens.	-	High
	PSAPSourceID	ABAP report source code and screens.	-	Medium
	PSAPProtD	A heavy-use tablespace. Spool, customer, log files, reports and printouts generated by any SAP process.	-	Highest
System tablespaces	PSAPPoolD	System pool tables that sap considers too small to be in their own tables. These are generally buffered in memory, so they're accessed at sap startup time but not heavily after that.	Small	Low
	PSAPCluD	Cluster tables used by SAP as subtables containing long raw datatypes, which must be reorganized using Oracle's slower export/import utilities instead of Oracle's faster create table as SELECT command.	Large	Medium
	PSAPDocuD	Contains codument tables, including sapscript and sapfind tables.	Small	Low
	PSAPVb0201D & PSAPVb0202D	-	-	-