Skip to main content

New Client Copy Tool

How many times you have created a new client and then in order to login you had to unlock sap* for which you needed a restart ?


Guess what SAP heard you, SAP delivers new client management tools based on new common architecture . The new client copy is complete redesign and replace the old client copy with added new features. The new process are optimized for increased performance, process automation, stability and the client export and client import have been expanded to include the option of exporting / importing “SNAPSHOTS”.

The new client added feature is added from SAP_BASIS 7.54 (SAP S/4HANA 1909).New tools to compare clients and determine the size of client is added from SAP_BASIS 7.55.

With SAP_BASIS 7.55 Service Pack 1, transaction SCC1 is finally moved to the new architecture.

What’s new in this Client Copy ?


How does new client copy has helped to increase the stability ?

It is no longer necessary to start the client copy in the target client. Instead, this can now be started in a neutral third client (usually client 000). This increases efficiency and ensures that no users romp around in the target client during the client copy. The use of the user SAP * and restart of the application server to enable the user is no longer necessary.


How is HANA Snapshot helping in this new client copy ? 

Since S4HANA has only HANA is used as database , SAP has started utilizing HANA features when it comes to application related features also. The well know HANA snapshot feature is used  for client copy now. Instead of first loading the data onto the application server for a local copy, the data remains on the database during a local client copy by using an INSERT FROM SELECT statement. As per the blogs it has boosted local client copy by 10X and Remote Client Copy by 5X.


What is the concept of Client Copy Optimizer ?

The new Client Copy Tool has implemented an optimizer for empty and unchanged tables again utilizing the HANA feature that is checking the HANA Database Statistics. If a table is completely empty in all the clients , if yes table can be skipped in the delete and copy phase. The optimizer also checks whether a table has been changed since the last client copy on the database, If a table has not changed since the last client copy and the last client copy had the same source and target clients, this table can also be excluded from the delete and copy phase. This optimization is particularly useful for regular copies of test clients or in the event of an aborted client copy.


What we have to for very large tables ?

A splitter algorithm is introduced , splits very large database tables by generating WHERE conditions, which can then be copied by different processes in parallel. This ensures that the allocation limit in HANA and ABAP is not exceeded during the copy process. Furthermore this algorithm increases the performance, since very large tables can be copied by several processes at the same time.


What is Class-based Exit Framework?

Exits are now based on class interfaces and now run in an isolated environment. By using interfaces, there is now a clear interface between the Client Copy Tool and the exits. Running in an isolated environment ensures that a broken exit cannot crash the entire Client Copy Tool. With SAP_BASIS 756 exits are executed in parallel processes.

Old exits are still supported and executed via a wrapper exit.


What is new with Client copy log ?

The client log is entirely revised. The logs are shown in tabs. In addition to the well-known “Client View”, there is now a “Timeline View” and a view for each copy mode (local copy, remote copy, etc.). Different columns show the exit status, the table copy status and a general message status. This makes it possible to assess the success of a client copy at a glance. 

Moreover with SAP_BASIS 756, SCC3 supports the display of the client size based on the data collected by the Client Size Estimation Tool and the Client Copy Tool.


Differences between Local and Remote Client Copy ?

Remote : Often the DDIC table definitions differ between the source and target systems due to different releases. Before each remote copy, the Client Copy Tool compares the DDIC table definitions and rules out incompatible tables. A table is e.g. incompatible if a field in the target system that is available in the source system is missing or has a shorter data type.

Local : While exits run in the analysis phase of a local copy in the target system and target client, the same phase is executed in the source client for a remote copy in the source system.

 

Get the above diagram in a better quality

I will dropping a new blog adding new points related to this soon, Comment if you want to add anything.





Related Blog :-

SAP Blog

SAP Blog By Tammy Paulas

Comments

You might find these interesting

How to properly Start/Stop SAP system through command line ?

Starting/stopping an SAP system is not a critical task, but the method that most of us follow to achieve this is sometimes wrong. A common mistake that most of the SAP admins do is, making use of the 'startsap' and 'stopsap' commands for starting/stopping the system.  These commands got deprecated in 2015 because the scripts were not being maintained anymore and SAP recommends not to use them as many people have faced errors while executing those scripts. For more info and the bugs in scripts, you can check the sap note 809477.  These scripts are not available in kernel version 7.73 and later. So if these are not the correct commands, then how to start/stop the sap system?  In this post, we will see how to do it in the correct way. SAP SYSTEM VS INSTANCE In SAP, an instance is a group of resources such as memory, work processes and so on, usually in support of a single application server or database server with

sapstartsrv is not started or sapcontrol is not working

 What is sapstartsrv ? The SAP start service runs on every computer where an instance of an SAP system is started. It is implemented as a service on Windows, and as a daemon on UNIX. The process is called  sapstartsrv.exe   on Windows, and   sapstartsrv   on UNIX platforms. The SAP start service provides the following functions for monitoring SAP systems, instances, and processes. Starting and stopping Monitoring the runtime state Reading logs, traces, and configuration files Technical information, such as network ports, active sessions, thread lists, etc. These services are provided on SAPControl SOAP Web Service, and used by SAP monitoring tools (SAP Management Console,  SAP NetWeaver  Administrator, etc.). For more understanding use this link : https://help.sap.com/doc/saphelp_nw73ehp1/7.31.19/enUS/b3/903925c34a45e28a2861b59c3c5623/content.htm?no_cache=true How to check if it is working or not ? In case of linux , you can simply ps -ef | grep sapstartsrv In case of windows, you need

HANA System Replication - Prerequisites & Setup

Hey Folks! Welcome back to Hana high availability blog series. In our last blog we checked out operation & replication modes in hana system replication. If you haven't gone though that blog, you can checkout  this link In this blog we will be talking about the prerequisites of hana replication and it's setup. So let's get started. When we plan to setup hana system replication, we need to make sure that all prerequisite steps have been followed. Let's have a look at these prerequisites. HANA System Replication Prerequisites: Primary & secondary systems should be up & running HDB version of secondary should be greater than or equal to Primary database sever But, for Active/Active(read enabled config), HDB version should be same on both sites. System configuration/ini files should be identical on both sides Replication happe

ST03N : The chapter for all BASIS Admins

This blog is targeted to BASIS ADMINS Transaction for workload analysis statistical data changed over time are monitored using transaction code ST03 , now ST03N (from SAP R/3 4.6C) . With SAP Web AS 6.4 the transaction ST03 is available again. From time to time ST03 and ST03N has seen many changes but later in SAP NW7.0 ST03N has reworked in detail specially processing time is now shown in separate column. Main Use of ST03N  is to get detailed information on performance of any ABAP based SAP system. Workload monitor analyzes the statistical data originally collected by kernel. You can compare or analyze the performance of a single application server or multiple application server. Using this you start checking from the entire system and finding your way to that one application server and narrowing down to exact issue. By Default :- You see data of current day as default view , you can change the default view. Source of the image : sap-perf.ca Let's discuss the WORKLOAD MONITOR By D

How to resolve Common Error : Standard Template "sap_sm.xls" missing

Hey everyone, putting forward a common error we usually face when we have “ Excel inplace” functionality enabled in our SAP system. This error occurs when validity of the signature of SAP standard templates expired or were incorrectly delivered via support packages. We can reproduce the error by doing as below.. Click on “spreadsheet” icon after any SAP ALV grid view of data is on screen to make this data to export into excel directly from SAP.

HANA hdbuserstore

The hdbuserstore (hana secure user store) is a tool which comes as an executable with the SAP Hana Client package. This secure user store allows you to store SAP HANA connection information, including user passwords, securely on clients. With the help of secure store, the client applications can connect to SAP HANA without the user having to enter host name or logon credentials. You can also use the secure store to configure failover support for application servers in a 3-tier scenario (for example, SAP Business Warehouse) by storing a list of all the hosts that the application server can connect to. To access the system using secure store, there are two connect options: (1)key and (2)virtualHostName. key is the hdbuserstore key that you use to connect to SAP HANA, while virtualHostName specifies the virtual host name. This option allows you to change where the hdbuserstore searches for the data and key files. Note

SAP system migration blog series - part 1: migration overview

Summary : This blog is part 1 of the blog series on SAP system migration. In this blog, we will provide overview about SAP migration, types of migration, their differences and usage scenario. SAP migration overview :   As the Greek philosopher, Heraclitus, said: “change is the only constant.” Same goes within SAP world too, often customer have to change the SAP systems along with its underlying components to meet the changing requirements, be it change from old hardware to new one, changing operating system, database. This change in SAP system components (DB, OS or Hardware) is termed as migration. Before we go into details of migration, let’s understand architecture of a typical SAP system.   An SAP system consist of SAP application instances, running on database (DB), hosted on operating system (OS), provisioned on hardware. Change in any one or more of these underlying components (DB, OS or hardware) warrant us to perform migration. Types of migration:   Broadly, there are two types

SAP HANA System Replication - Operation Mode & Replication Mode

Hey Folks! Welcome back to Hana high availability blog series. In our last blog we checked out what is hana system replication and how it basically works. If you haven't gone through that blog, you can checkout link In this blog we will be talking about the replication modes and operation modes in hana system replication. So let's get started. When we setup the replication and register the secondary site, we need to decide the operation mode & replication mode we want to choose for replication. For now we won't focus on setting up replication as we'll cover it in our next blogs.  Operation Modes in Hana System Replication: There are three operation modes available in system replication: delta_datashipping, logreplay and logreplay_readaccess. Default operation mode is logreplay. 1. Delta_datashipping: In this operation mode initially one full data shipping is done as part of replication setup and then a delta data shipping takes place occasionally in addition to cont

Work Process and Memory Management in SAP

Let’s talk about the entire concepts that are related to memory when we talk about SAP Application. Starting with few basic terminologies, Local Memory :  Local process memory, the operating system keeps the two allocation steps transparent. The operating system does the other tasks, such as reserving physical memory, loading and unloading virtual memory into and out of the main memory. Shared Memory :  If several processes are to access the same memory area, the two allocation steps are not transparent. One object is created that represents the physical memory and can be used by various processes. The processes can map the object fully or partially into the address space. The way this is done varies from platform to platform. Memory mapped files, unnamed mapped files, and shared memory are used.  Extended Memory : SAP extended memory is the core of the SAP memory management system. Each SAP work process has a part reserved in its virtual address space for extended memory. You can set

Complete Guide : XPI Inspector Tool

Content of this blog :           What is an XPI Inspector Tool ? Why XPI Tool is used ? XPI standard URL How to check XPI Tool version ? How to Install/Update XPI version using TELNET How to Use XPI Tool ? References – SAP Notes What is XPI Inspector tool ?          -    XPI Inspector is a diagnostics web application developed by SAP that collects logs and debug traces from various PI components in a very simple way and is useful for SAP PI consultants, developers, and administrators to get more insights on an issue. Why XPI is used  – 1.  Used to collect traces and logs from Messaging system or XI module. 2. Used to collect the related information to solving the issues or improving the PI or PO systems’ performance. 3. Using XPI Inspector application you will be able to collect a lot of information about your system that will help you to learn about problems in the past, to analyze new and detect such at an early stage. 4. Performs certain number of configuration checks, such as SSL c