Remove *INTERACT Memory Pool on IBM i5/iSeries
As SAP requires little interactive activity on IBM i5/iSeries, it is recommended to remove *INTERACT memory pool and leave more resources for *BASE memory pool, as mentioned in Note 428855. The procedure is developed also based on OSS message 581561. First, logon through the console, or logon through a regular session then TFRJOB JOBQ(QCTL), so your session would be running under QCTL subsystem. Second, change the description of the QINTER subsystem with CHGSBSD SBSD(QSYS/QINTER) POOLS((2 *BASE)) 
Third, make sure there is no active session under QINTER subsystem. You could check with WRKACTJOB SBS(QINTER). Fourth, restart QINTER subsystem ENDSBS SBS(QINTER) OPTION(*IMMED) STRSBS SBSD(QSYS/QINTER) Last, verify that the change has taken effect. You should be able to start regular interactive sessions like before, notice that *INTERACT memory pool no longer exists in WRKSYSSTS. 
And WRKSBS shows that QINTER subsystem runs in pool 2 (*BASE). 
It is all set. Same approach can be used to remove *SPOOL memory pool. Pleaes note that because the QINTER subsystem description is an object under QSYS, OS/400 release upgrade may restore the default values delivered by IBM.
Third, make sure there is no active session under QINTER subsystem. You could check with WRKACTJOB SBS(QINTER). Fourth, restart QINTER subsystem ENDSBS SBS(QINTER) OPTION(*IMMED) STRSBS SBSD(QSYS/QINTER) Last, verify that the change has taken effect. You should be able to start regular interactive sessions like before, notice that *INTERACT memory pool no longer exists in WRKSYSSTS. And WRKSBS shows that QINTER subsystem runs in pool 2 (*BASE). It is all set. Same approach can be used to remove *SPOOL memory pool. Pleaes note that because the QINTER subsystem description is an object under QSYS, OS/400 release upgrade may restore the default values delivered by IBM.
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