Performance Issues On iSeries running Domino 6

We are currently having performance issues with our Domino Notes server running on a V5R2 iSeries. PGM-SMTP, PGM-SERVER and PGM-UPDATE will run at high CPU utuilztion rates for extended periods of time. I was wondering if anyone had any suggestions. Full text indexing is running hourly> Could this be a problem. I also have a warning that full text indexing is running on a file that is not full text indexed, how do I change this. ANY suggestions would be appreciated.

thad Rizzi

Subject: Performance Issues On iSeries running Domino 6

I just went through a similar but not exactly the same exercise. My SERVER task was running at a constant 40% and total CPU was at 90+ percent. Even on Saturday with 10 people on it. SMTP was not a factor. Couple things I did:

  1. In WRKSYSSTS hit F11, make sure the *BASE pool Paging Option is *CALC not *FIXED (assuming your Domino system is running in *BASE).

  2. We replicate our mail databases to an NT box for pseudo backup until we get BRMS working. Someone had done a copy/paste from the w2k replica into the AS/400 drive using with operations navigator. That copy did not properly convert the file (I think it has to do with going from an ASCII box to an EBCDIC box).The result was that we had one file with “Symbolic Link” CCSID = 437. All files in the mail folder should be 37. We fixed it doing a special iSeries copy command after doing a WORK LINK in the WRKDOMSVR console. That copy command lets you convert the CCSID to 37

  3. we changed the owner to QNOTES, the file above in 2) had the owner name of the admin who copied the file.

NET/NET: we made those three changes and utilization dropped a ton. SERVER task now averages in the 20% range during the day and under 5% at night. Total CPU now 60% range at busy times and 20% at night.

Subject: Performance Issues On iSeries running Domino 6

Maybe you’re just not sized properly for Domino. What iSeries model? How many users? Applications or just mail?

Subject: RE: Performance Issues On iSeries running Domino 6

We are running a model 720 with 512MB memory.

Subject: Performance Issues On iSeries running Domino 6

It looks like PGM-SMTP is the main culprit.

Subject: Performance Issues On iSeries running Domino 6

If these three tasks are running at high CPU utilization rates for extended periods of time, it may be that you need an upgrade.

However, before you do that, you can enable extra logging to find out which indexes are taking the longest to index. This gives you the tools to be able to target specific indexes.

Full text indexing normally runs every hour, that is normal. However, as you point out, getting the full text indexing warning is not good, you need to build a full text index. You can do this through the Administration client.

Also check to make sure your NSF_Buffer_Pool is set appropriately. This can definitely impact indexing performance.