IBM Support

Updates to IMS Recovery Expert V2.2 User's Guide (SC19-4368-06)

Product Documentation


Abstract

Updates that apply to IMS Recovery Expert V2.2 User's Guide (SC19-4368-06).

Content

The most recent updates appear at the top of the list.


Update 3

Date of change: December 2020

Change description: Documentation changes by APAR PH31570. This APAR enhances Disaster Recovery (DR) function to support OSAM encryption.

Topics: Changes apply to multiple topics.

=======================================================

Topic: Creating image copies from System Level Backups

A new restriction item has been added:

...

The image copies are registered with a runtime that is the time of the System Level Backup. Image copies for database data sets that were allocated at the time of the backup are registered as a Concurrent Image Copies (CIC).

Restrictions: 

  • Image copies cannot be created for databases with reusable image copies defined.
  • Image copies cannot be created for database data sets encrypted by z/OS data set encryption function. 

--------------------------------------------------------------------------

Topic: Recovering an IMS system using the IMS Recovery Expert disaster recovery feature > Creating disaster recovery profiles > Specifying the IDCAMS Delete/Define Options

A new option "Key label replication" has been added to the "Specify Delete/Define Options" panel (BSY$DPDD)”:

Procedure

...

  1. On the Update Disaster Recovery Profile panel (BSY$DPRM), specify U in the Generate DBDS Delete/Define field and press Enter.

image 7471

2. On the Specify Delete/Define Options panel (BSY$DPDD), specify the following options:

...

Key label replication

If you are using z/OS data set encryption for DBDS, encrypted DBDS has an encryption key label. If the DBDS Delete/Define Option is active, you can specify the DBDS key label replication option. Specify if you want the existing key label information to be set on the KEYLABEL parameter of the DEFINE CLUSTER command. Specify N if you do not want the key label information to be set. The default value is Y.

You can assign a key label also by SMS Data Class definition. If you assign a key label by SMS Data Class definition at remote site, you should set N for the key label replication option.

3. When you are finished, press Enter.

--------------------------------------------------------------------------

Topic: Messages

The following message has been added:

 

BSYR961E Invalid value - Key label replication must be set to "Y" or "N".

Explanation:

An invalid value was specified for the "Key label replication" option.

User response:

Enter "Y" if you want the existing key label information to be set on the KEYLABEL parameter of the DEFINE CLUSTER command. If not, enter "N".


Update 2

Date of change: May 2020

Change description: Documentation changes by APAR PH25092. This APAR enhances Disaster Recovery (DR) function of IMS Recovery Expert.

Topics: Changes apply to multiple topics.

=======================================================

Topic: Recovering an IMS system using the IMS Recovery Expert disaster recovery feature > Creating disaster recovery profiles

A new option “Disable old backup in DR PDS” has been added to the Update Disaster Recovery Profile panel (BSY$DPRM)”:

Procedure

...

6. When you have finished specifying information on the Enter New Disaster Recovery Profile Data panel, press Enter.

Figure. Update Disaster Recovery Profile panel (BSY$DPRM) 
(Figure 183 in PDF)

image 3674

7. On the Update Disaster Recovery Profile panel, specify information for the following disaster recovery options:

...

Disable old backup in DR PDS

Specify whether you want to disable the previously built backup image of RECON and the IMS Recovery Expert repository in the DR PDS when the DR preparation job is executed. It updates and disables the restore job steps in JCL for the systems other than the DR preparation target system. If you have a need for this process, specify Y to have the DR preparation job perform this process when it executes or N to skip this processing.

When multiple system groups share the same RECON data set and the IMS Recovery Expert repository, those system groups must share the same DR PDS and all DR profiles must have Y specified for this option. If you specify Y for this option, all system groups sharing the same DR PDS must share the same RECON data set and the IMS Recovery Expert repository. 

...

--------------------------------------------------------------------------

Topic: Recovering an IMS system using the IMS Recovery Expert disaster recovery feature > Recovering both IMS and Db2 subsystems > Creating IMS and Db2 disaster recovery profiles

A new option “Disable old backup in DR PDS” has been added to the Update Disaster Recovery Profile panel (BSY$DPRM)”:

Procedure

  1. On the IMS Recovery Expert Update Disaster Recovery Profile panel (BSY$DPRM), specify the Db2 system that will be recovered with the IMS system in the External Subsystem field.

Figure. Update Disaster Recovery Profile panel (BSY$DPRM)
(Figure 195 in PDF)

image 3688

...

--------------------------------------------------------------------------

Topic: Messages

The following message has been added:

 

BSYR960E Invalid value - Disable old backup in DR PDS must be set to "Y" or "N".

Explanation:

An invalid value was specified for the "Disable old backup in DR PDS" option.

User response:

Enter "Y" if you want to disable the previously built backup of RECON and the IMS Recovery Expert repository. If not, enter "N".


Update 1

Date of change: December 2018

Change description: Doc changes related to application recovery checkpoint restart.

Topic: Recovery using application operations > Recovery using application operations > Using profiles > Managing a profile

The following topic has been added before "The EXPLODE command" topic:

Managing application recovery checkpoint restart

IMS Recovery Expert provides the capability to perform checkpoint restart of failed
application recovery jobs. This is an optional feature that must be activated by
allocating the BSYCHKPT repository and updating the BSYV220 clist to specify the
data set in the RBRCHKPT variable. For more information about this, see step 3 on
page 37. If this repository is set up, when the application recovery JCL is created,
the BSYCHKPT DD statement is included in the job, and that activates checkpoint
restart. No additional tasks are required to activate this feature. When the
application recovery job executes for the first time, information is recorded in this
repository that can be used for subsequent executions if there are any errors.

If the application recovery job completes successfully, the information in the
BSYCHKPT repository is deleted. If the same application recovery job is executed
again, then it will attempt to perform the entire recovery process again. If any
errors occur while performing any of the steps or jobs required to complete the
application recovery for any databases, then the information remains unchanged in
the repository. If the job is resubmitted, then IMS Recovery Expert will use the
information in the BSYCHKPT repository as well as information in the RECON
data sets to determine what processes failed on the prior execution and need to be
rerun. After all processes complete for all databases, the information in the
repository is deleted.

Note: If a failure occurs in an application recovery job and checkpoint restart is
active, when the job is resubmitted, the execution environment is verified to ensure
that changes were not made. You cannot change the type of recovery being
performed with checkpoint restart.

Publication Number

SC19-4368-06

[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSS8TR","label":"IMS Recovery Solution Pack for z\/OS"},"ARM Category":[{"code":"a8m0z000000cvZYAAY","label":"IMS Recovery Expert"}],"Platform":[{"code":"PF035","label":"z\/OS"}],"Version":"2.1.0","Line of Business":{"code":"LOB35","label":"Mainframe SW"}}]

Document Information

Modified date:
01 April 2021

UID

ibm10741349