What's new in CICS VR 6.1

CICS® VR 6.1 contains these changes.

Add New Fields into the DWWJUP Utility

CISC VR Journal print utility (DWWJUP) generates journal print reports. Each log record has its own record header. However, these headers do not have transaction IDs and task numbers. To improve diagnostic information and readability, the customer has asked to include the transaction ID and task number in the record header.

Need a way to better control Automatic Log of Logs Scanning

The initial automatic log of logs scan begins 24 hours after the CICS VR server is activated and continues to run every 24 hours thereafter. If the LOLSCAN parameter is set to the default value of NO, automatic log scans will not be initiated. Each log of logs scans updates the RCDS (Recent Change Data Set) with the latest information. Added option in CICS VR panel to customize log of log scan interval time and start time.

Timer-Based Buffer Flush

Currently, users do not have the option to control when the content of buffer storage is written to the log stream. This limitation adversely impacts the performance of IIDR (IBM Infosphere Data replication). A new option has been introduced for the user to start a timer inside CICS VRs address space. The contents of the buffer will be written to the log stream as per user-defined intervals so that there will not be any delay in data replication.

Option to do a Selective Log of Logs Scan

CICS VR provides customers to generate forward recovery jobs by using CLIST. When creating a forward recovery job using CLIST, CICS VR performs a log of log scan for all registered log of logs to update RCDS with recent information. Customer will now be able to perform particular or multiple log of logs scan instead of scanning all log of logs by default.

DWWGJCDS/DWWAR to use the above line storage

The CICS VR RCDS reports utility DWWGJCDS and the archive utility DWWAR utilizes below-the-line storage to handle requests. As the available memory in below-the-line storage is restricted to 16MB, these utilities can only process a limited number of records.

When a large volume of records was processed, DWWGJCDS and DWWAR utilities were failing with S878 abend due to storage outage. An additional (optional) parameter ALL31 in DWWIN (input DD statement) was introduced to carve memory in any line storage, i.e., up to 2GB. So, the CICS VR RCDS report utility - DWWGJCDS and archive utility - DWWAR, will be able to handle enormous amounts of records.