Before you start
Are you concerned with your ability to recover your business data successfully in an acceptable amount of time for your IMS databases? This "Exploring IMS Disaster Recovery Solutions" series covers the non-storage mirroring disaster recovery solutions for the IMS environment. The methods described in this series show how various backup and recovery resources can be combined to reduce time and data loss in the event of a disaster. Storage-based fast replication techniques (like FlashCopy technology) are also shown in this series with storage-aware IMS Tools that allow a coordinated and consistent recovery point between IMS and DB2 databases.
This tutorial describes the IMS Disaster Recovery solutions that use the IMS Tools product, IMS Recovery Expert, and DB2® Tools product, DB2 Recovery Expert, to provide a consistent recovery point between IMS and DB2 production environments. The SLB is created using storage-based fast replication, such as FlashCopy technology, to ensure that IMS and DB2 are unavailable for only a couple of seconds or less.
The coordinated IMS and DB2 Disaster Recovery solutions discussed are:
- IMS and DB2 Restart from a Combined SLB Only
- IMS and DB2 Point-In-Time-Recovery (PITR) and Restart from Separate SLBs with Log Apply
For each coordinated disaster recovery (DR) solution, there is a section showing the one-time customization steps for IMS Recovery Expert and DB2 Recovery Expert.
If you haven't done so already, consider downloading the IMS Disaster Recovery demonstrations.
After completing the tutorial, you should be able to:
- Customize the IMS Recovery Expert and DB2 Recovery Expert product
- Create disaster and application profiles
- Create a system-level backup (SLB)
- Understand how PITR works
- Understand the coordinated IMS and DB2 disaster recovery process
To understand the material presented here, you should have the following:
- Basic understanding of the z/OS® environment
- Basic knowledge of the IMS and DB2 operating environments
- Basic knowledge of IMS and DB2 commands and procedures
- Basic knowledge of an Internet browser, such as Firefox or Internet Explorer