Downloading and Unpacking the Software Update Manager

Procedure

Download the latest version of the Software Update Manager from the main Software Logistics Toolset page on the Support Portal at:

http://support.sap.com/sltoolsetSystem Maintenance Software Update Manager (SUM) Download SUM

Note

The latest version of the Software Update Manager can automatically be downloaded when calculating the target software components and the stack configuration file in SAP Maintenance Planner. For more information about using this function, see https://blogs.sap.com/2015/07/09/maintenance-planner-2/.
Log on to the host on which you want to run the Software Update Manager as user <SID>adm.

Note

Typically, it is the host on which the primary application server instance is running. However, you can also use an additional application server instance.
Unpack the Software Update Manager package with the following command:

SAPCAR –xf <download directory>/<path>/<Archive>.SAR -R /usr/sap/<SID>

This command creates the directory SUM under the /usr/sap/<SID> directory. You can also specify another directory. Hereafter, the directory <path to SUM directory>/SUM is referred to as <update directory>.
Note
- Do not unpack SUM in the DIR_GLOBAL directory, as this can lead to issues during the update.
- The complete path to the SUM directory must not exceed 25 characters.
- Do not extract the Software Update Manager to a directory starting with /usr/sap/<any capital three letters>/ where <any capital three letters> is not the SID of the managed system.
- The SAP profile parameter DIR_PUT is the parameter used to define the directory in which temporary data is stored during the update. If you perform an update with additional application server instances, make sure that:
  - The value of the SAP profile parameter DIR_PUT matches the current <update directory>/abap.
  - The parameter DIR_PUT is known to the additional application server instances.
  - The additional application server instances have read/write-permission for the <update directory>.
- If you want to run several updates in parallel on the same host, you have to unpack one SUM instance in each directory of the respective SID directories.
  
  For example, if you have the SAP system IDs AB1 and AB2, unpack one SUM instance in the respective directory of each SAP system ID. When starting the SUM user interface, you enter the corresponding SAP system ID in the URL, thus connecting to the corresponding SUM instance. For more information, see Starting or Restarting the Software Update Manager. Note that when running several SUM instances using the default location /usr/sap/<SID> is mandatory.
  
  Note that SUM creates a shadow instance. Therefore, ensure that SUM instances running in parallel on a host use different instance numbers for these shadow instances. To specify the shadow instance number for each SUM instance, switch on the expert mode, or access the SUM Utilities (Extended UI) and choose SUM Parameters SUM Shadow System Parameters.