What is shadow instance in SAP upgrade?

What is shadow instance in SAP upgrade?

Shadow system is basically copy of system that is going to be upgraded. This copies system is a bit limited to original one. It has only technical repository (SAP Basis objects) of objects and you cannot run your business processes on it.

How do I start a shadow instance in SAP?

To start the shadow instance manually, proceed as follows:

1. UNIX: cd /abap/bin example: cd /usr/sap/PRD/SUM/abap/bin. WINDOWS: example: D:
2. UNIX: ./SAPup startshd. WINDOWS: .\SAPup startshd.
3. The following output will be displayed: Starting shadow system …

What should you do before updating your SAP system using sum?

Step 1.Extraction

1. DDIC username and password.
2. Identify database & SAP version.
3. Checks the stack xml file.
4. Scanning of download directory where all the patches are placed.
5. Extract files to move to EPS/in.
6. Check SPAM version.
7. ADM credentials.
8. Pre-upgrade S-note list implementation.

In which phase shadow instance is created?

DBCLONE phase: In this phase the target system (shadow system) will be copied from the current system. the Software Update Manager starts a number of background jobs to create copies of the tables required for operating the shadow system.

What is difference between Spdd and Spau?

SPDD contains the list of all modified Data Dictionary objects, like tables, dataelements, domains,view…etc. The rest of all the modified repository objects will be listed in SPAU.

What is Spdd and Spau in SAP?

SPDD is used to identify dictionary objects. and. SPAU (repository objects), will identify any objects where the hot package is overwriting changes you have made through OSS notes. You must check all objects identified in SPAU and decide whether you need to reapply the OSS note or reset the code to the original SAP …

How do I upgrade EHP in SAP?

The following steps run through the extraction phase:

1. DDIC username and password.
2. Identify database & SAP version.
3. Checks the stack XML file.
4. Scanning of download directory where all the patches are placed.
5. Extract files to move to EPS/in.
6. Check the SPAM version.
7. ADM credentials.
8. Pre-upgrade S-note list implementation.

What is shadow instance in sum?

A shadow (SHD) system can be used by SUM during system maintenance (or update) parallel to the existing ABAP system. A shadow system uses the same system-ID as the original system, but has a separate instance (shadow instance, own instance number) and a separate repository (shadow repository).

What is the difference between sum and SWPM in SAP?

SWPM is the abbreviation for the Software Provisioning Manager, the Software Logistics tool for system provisioning. SUM is the abbreviation for Software Update Manager, the Software Logistics tool for system maintenance.

What is difference between upgrade and update in SAP?

Answer: Updating SAP products is for applying support packs, patches or hotfixes. Upgrade term is used exclusively when product release is changed.

What is SAP Xpras?

XPRA – Execute ABAP Program Automatically After Transport Request Import. The XPRA object is an executable ABAP program that will run after all objects included in the transport request have been imported. It is run regardsless of any import errors for other included objects.

How do you adjust Spdd in SAP?

Preparing to Run Transaction SPDD

1. Start transaction SE03 as user DDIC and choose Administration Set system change option.
2. Select Modifiable in the Global setting dialog box.
3. Choose Continue.
4. Choose Edit Select all .
5. Save your changes.
6. Then log on as a normal user, since user DDIC may not perform any repairs.

How do I restart the Shadow instance in the NZDM scenario?

Restart the shadow instance in the nZDM scenario The following output can be displayed: Enter the path of your root directory [D:\sr\\sap\\SUM\\abap]: Root directory = Confirm if the correct SUM directory is displayed and press Enter The following output will be displayed:

Do I need to start or stop another instance of SHDI?

At this time of the procedure, the shadow instance does not exist anymore since you are passed phase STOP_SHDI_*!” Conclusion: Depending on the update phase another instance needs to be started or stopped.

How long does it take for Shadow system to start?

Starting shadow system Starting service waiting 4 seconds for system to come up testing if system is available REMARK: If the shadow instance is not working in the current upgrade phase, one of the following message will be displayed: