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One of our 3rd party apps that uses journaling.
An issue was found that the resetting of the journal sequence number to 1 on an IPL causes issues.
Researching the reset of journal sequence numbers I found the below IBM tech doc.
If journal Receiver size options is set to *MAXOPT3, the sequence number will NOT be reset to 1 on IPLs.
I was reviewing receiver size option for all journals on the system, including IBM system journals, found no consistency.
Ranges from *NONE , *MAXOPT1, *MAXOPT2, *MAXOPT3.
Should all journals have their receiver option size be set to *MAXOPT3, thus preventing the sequence reset to 1 on an IPL.
I also noticed some journals also have *RMVINTENT.
Any thoughts from the group?
For those using journaling, what receiver size option are you using?
RCVSIZOPT(*MAXOPT3)
Use RCVSIZOPT(*MAXOPT3) to set the maximum size of a journal receiver attached to your journal to approximately one terabyte (1 099 511 627 776 bytes). In addition, with RCVSIZOPT(*MAXOPT3) the journal receiver can have a maximum sequence number of 18 446 744 073 709 551 600. With RCVSIZOPT(*MAXOPT3), the system can deposit a journal entry as large as 4 000 000 000 bytes. You cannot save or restore these journal receivers to any releases before V5R3M0. Nor can you replicate them to any remote journals on any systems at a release before V5R3M0.
If you use RCVSIZOPT(*MAXOPT3) you must use the FROMENTLRG and TOENTLRG parameters to specify a journal entry sequence number larger than 9 999 999 999 when you perform the following commands:
APYJRNCHG
APYJRNCHGX
CMPJRNIMG
DSPJRN
RCVJRNE
RMVJRNCHG
RTVJRNE
*RMVINTENT - Indicates that internal entries required only for IPL
recovery will be removed from the receivers attached to the journal
when the entries are no longer required for IPL recovery.
https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_71/rzaki/rzakiresetjrn.htm
Thank You
_____
Paul Steinmetz
IBM i Systems Administrator
Pencor Services, Inc.
462 Delaware Ave
Palmerton Pa 18071
610-826-9117 work
610-826-9188 fax
610-349-0913 cell
610-377-6012 home
psteinmetz@xxxxxxxxxx
http://www.pencor.com/
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