Copyright © TIBCO Software Inc. All Rights Reserved
Copyright © TIBCO Software Inc. All Rights Reserved


Chapter 7 Maintaining Segments Using Third-Party Products : Required Facilities and Process for Backup While Open

Required Facilities and Process for Backup While Open
What is Backup While Open (BWO)?
Backup while open serialization, which is a supported feature of DFSMSdss, allows DFSMSdss to perform backup of data sets that are open for update for long periods of time. It can perform a logical data set dump of these data sets even if another application has them serialized. Backup while open is a better method than using SHARE or TOLERATE(ENQFAILURE) for dumping TIBCO Object Service Broker VSAM data sets that are in use and open for update. When you dump data sets that are designated by TIBCO Object Service Broker as eligible for backup while open processing, data integrity is maintained through serialization interactions between TIBCO Object Service Broker, VSAM record management, DFSMSdfp, and DFSMSdss.
Prerequisites
To use the BWO feature of DFSMSdss, your system must have the following in place:
1.
2.
The ability to allocate TIBCO Object Service Broker page data sets under the control of DFSMS on DASD that supports the CONCURRENT copy feature
Process of Using the BWO Feature of DFSMSdss
The general process of using the BWO feature of DFSMSdss to maintain TIBCO Object Service Broker segments while maintaining access to the TIBCO Object Service Broker data is as follows:
1.
To prevent access by a TIBCO Object Service Broker offline utility, ensure the segments to be maintained are ONLINE to the TIBCO Object Service Broker system.
2.
3.
When the TIBCO Object Service Broker system is frozen, run the DFSMSdss jobs to copy or dump the desired data sets. The DFSMSdss jobs should specify the Concurrent and NotifyCC options.
4.
Use the UNFREEZE TIBCO Object Service Broker command to get TIBCO Object Service Broker to continue processing.
You can use the UNFREEZE command when the ADR734I messages have been issued for all the data sets being dumped. It is not required to wait until the backup jobs run to completion.
5.

Copyright © TIBCO Software Inc. All Rights Reserved
Copyright © TIBCO Software Inc. All Rights Reserved