Question & Answer
Question
Why am I getting this IDA9990I message after upgrading z/OS 2.2 when accessing files from CICS Transaction Server for z/OS (CICS TS)?
IDA9990I VSAM DBA ADDED 149 INDEX BUFFERS OF 8192 BYTES EACH TO 403
I have had an old LSRPOOL definition that has not been modified in a long time. I tried removing the old LSRPOOL definition from the CMAS GROUPLIST and it resulted in the following warning message:
+DFHFC0208I LSR pool 1 is being built dynamically by CICS because all of the
necessary parameters have not been supplied. Either there is no
LSRPOOL definition or it is incomplete. The following are not
defined: 'CI SIZE' 'STRINGS' 'MAXKEYLENGTH'. A delay is possible.
Answer
The new IDA9990I message from VSAM at z/OS 2.2 is an informational message and does not necessarily need to be acted upon as stated in the Documentation in the following 2 sections:
Like the CICS DFHFC0208I message, the information does not always need to be acted upon.
APAR PI75316 was opened in order to update the documentation in the section entitled Defining VSAM buffer allocations to LSR under CICS VSAM and file control: Performance and tuning > VSAM specifications for LSR.
The reason for the update to this section is to relay that in z/OS 2.2 there is a VSAM dynamic buffer addition enhancement that will add buffers if no buffer is available for a given VSAM request. If this does occur then informational message IDA9990I will provided information in regards to number and size of buffers that could be used to alter the value of the BUFFERS parameter.
Product Synonym
CICS/TS CICSTS CICS TS CICS Transaction Server
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Document Information
Modified date:
06 June 2017
UID
dwa1358554