5.8 rev3 using AIX 6.1

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  • #52483
    Judy Johnson
    Participant

      Is anyone out there successfully using cloverleaf 5.8 rev 3 with Unix 6.1.00? We have it here and seem to be having I/O issues…any input would be appreciated.

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      • #74394
        Alan Fleming
        Participant

          Could you elaborate on your issues please.

          We have 5.8 Rev 3 up on AIX 6.1.

          Things are looking good so far.

        • #74395
          Judy Johnson
          Participant

            well we are on 5.8 Rev 3 unix os level 6100.05. When our nightly backup runs, all I/O is used and messages backup for 45 minutes….also when we run our cycle scripts, any scripts using a compress command, freezes the system, records backup in the engine and not delivered until scripts are done.  Had IBM look at , and there seems to be something with file locks. Because of this, we had to comment out all compress and our backups are selective, until this is resolved.  You will see, after you run your compress, i-nodes still created and space not freed up until process is cycled.

          • #74396
            Robert Milfajt
            Participant

              Yes, the cycle save and i-node issue was a known issue in an earlier post.  You need to bounce the process to free up the i-nodes.   You can probably search the list to find the exact post.

              Robert Milfajt
              Northwestern Medicine
              Chicago, IL

            • #74397
              Robert Milfajt
              Participant

                https://usspvlclovertch2.infor.com/viewtopic.php?t=4895&start=15&postdays=0&postorder=asc&highlight=disk+leak

                Is a link to the topic regarding this problem.

                Robert Milfajt
                Northwestern Medicine
                Chicago, IL

              • #74398
                Judy Johnson
                Participant

                  Thanks for the link…but in looking at the memory leak and smat file issues, it was suppose to be fixed in REV3… we are on REV3, unix os 6.1.0.0.5 and still experiencing this….we have ticket open with lawson and are awaiting response from R&D.

                  judy

                • #74399
                  Bob Schmid
                  Participant

                    is this still an issue in  5.8.3?

                  • #74400
                    Judy Johnson
                    Participant

                      yes…we are on 5.8.3 and are still having issues….again, R&D is looking at code and we have weekly calls between them and IBM and ourselves. Will let you know what happens…hopefully soon…

                    • #74401
                      Judy Johnson
                      Participant

                        5.8.3 is cloverleaf version…..

                        Unix version is 6.1.0.0. 5…on a P7 box

                      • #74402
                        Bob Richardson
                        Participant

                          Greetings,

                          We are planning to upgrade to CIS5.8 Rev3 as well on AIX6.1 TL 6 SP5

                          from CIS5.7R2 (may apply R3 here soon).  My question is:  have you enabled multi-threading for your engines (processes)?   It seems from the posts and my informal talks at CUE11 with some Cloverleaf staff that most of the problems with the 5.8 engine center around the revampled core modules (C code) dealing with multi-threading.  Apparently, the AIX6.1 platform is sensitive to these changes now versus other Unix platforms.

                          Please (!) post any response from Cloverleaf R & D concerning the CPU utilization problems that your shop is experiencing.

                          Thanks from this community member for keeping us in the loop.

                        • #74403
                          Alan Fleming
                          Participant

                            We are AIX 6.1 in an LPAR environment running CIS5.8 Rev 3

                            Our discs are an EMC disc farm.

                            Our test system has been up 3 weeks with nightly backups and compress.

                            No issues to date. We plan to bring production up in about 2 weeks.

                          • #74404
                            Bob Richardson
                            Participant

                              Greetings,

                              Just a thought here but did you check the AIX installation instructions about adjusting the user MAXUPROC settings which includes number of open file handles?   The recommendations is up to 3X your current values.

                              Maybe a red herring but doesn’t hurt to check them.

                            • #74405
                              Judy Johnson
                              Participant

                                attn: Alan Fleming

                                We did not notice on our TEST box either….on your test box after you run all you compress scripts, use the following command and see if you are left with I-node file

                                **note: i dont have any on my test box…just production** I dont have the volumn. Even with the compress gone from our scripts, we are still getting new inodes…

                                set you default to /healthvision (or whatever you call your directory)

                                fuser -dV /healthvision

                                CLOVERLEAFP as hci # > fuser -dV /healthvisionp

                                /healthvisionp:

                                fd=24 7602380

                                fd=21 7864456

                                fd=24 17629320

                                fd=21 19988508

                                fd=29 34341042

                                fd=21 38404236

                                fd=24 40632532

                                fd=21 41156640

                                fd=24 49938530

                                fd=22 55574548

                                fd=24 57475274

                                fd=33 59572252

                                ***above all all the inodes created, i must stop and restart all the processes to clear up***

                              • #74406
                                Anonymous

                                  Judy,

                                  Did you ever resolve this issue of delayed message delivery during system backups?  I think we have a similar issue.  I

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