Defining a policy

A server policy needs to be specified when you are configuring IBM Storage Protectâ„¢ policies. Specify how files are backed up, archived, moved from client node storage, and how they are managed in server storage. A policy definition includes the definition of a policy domain, a policy set, management classes, and copy groups.

About this task

After you set definitions, a default policy set must be assigned, validated, and activated. For the policy definition, log on as an IBM Storage Protect Administrator by using the Admin Command Line or the Web Admin and run the following commands.

Procedure

  1. Define a policy domain and policy set:
    define domain sap_c21
    define policyset sap_c21 p_c21
  2. Define a management class for file system backups, data files, offline redo log files redo logs log files and copies of offline redo logs log files redo logs:
    define mgmtclass sap_c21 p_c21 mdefault
    define mgmtclass sap_c21 p_c21 mdb
    define mgmtclass sap_c21 p_c21 mlog1
    define mgmtclass sap_c21 p_c21 mlog2
    If you are planning to use this IBM Storage Protect server with multiple SAP systems, use a set of different management classes for each system.
  3. Define a copy group:
    define copygroup sap_c21 p_c21 mdefault type=backup destination=sap_incr
    define copygroup sap_c21 p_c21 mdefault type=archive destination=archivepool
    define copygroup sap_c21 p_c21 mdb type=archive destination=sap_db retver=nolimit
    define copygroup sap_c21 p_c21 mlog1 type=archive destination=sap_log1 retver=nolimit
    define copygroup sap_c21 p_c21 mlog2 type=archive destination=sap_log2 retver=nolimit
    define copygroup sap_c21 p_c21 mdefault type=backup destination=sap_incr
    define copygroup sap_c21 p_c21 mdefault type=archive destination=archivepool
    define copygroup sap_c21 p_c21 mdb type=archive destination=sap_db retver=90
    define copygroup sap_c21 p_c21 mlog1 type=archive destination=sap_log1 retver=90
    define copygroup sap_c21 p_c21 mlog2 type=archive destination=sap_log2 retver=90

    Data Protection for SAP uses version control for managing SAP database backups by backing up all data to only those management classes for which an archive copy group is defined (typearchive). To prevent backed up files within IBM Storage Protect server storage from being deleted due to expiration dates (IBM Storage Protect deletes expired files), the copy group parameter retver, which specifies the number of days a file is to be kept, must be set to unlimited (9999 or nolimit).

    Data Protection for SAP HANA stores data in the archive copy group of the management classes. This data expires after a defined number of days. In the example, a retver value of 90 days is used. When no backup is being done within this time frame, all backup data expires and is no longer available for restore. As an alternative the copy group parameter retver, which specifies the number of days a file is to be kept, can be set to unlimited (9999 or nolimit). Obsolete backups can be deleted manually using the SAP HANA Studio.

  4. Assign the default management class:
    assign defmgmtclass sap_c21 p_c21 mdefault
  5. Validate and activate the policy set:
    validate policyset sap_c21 p_c21
    activate policyset sap_c21 p_c21