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    High CPU on Hyper-V VM

    IT Discussion
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    • MattSpellerM
      MattSpeller @garak0410
      last edited by

      @garak0410 If it is hitting the disk hard check out NTFS restore points / mirroing / shadow copy/..... brain tired. you get the idea.

      garak0410G 1 Reply Last reply Reply Quote 2
      • garak0410G
        garak0410 @MattSpeller
        last edited by

        @MattSpeller said:

        @garak0410 If it is hitting the disk hard check out NTFS restore points / mirroing / shadow copy/..... brain tired. you get the idea.

        We do run Shadow Copies....and here's the schedule:

        shadow01.jpg

        MattSpellerM 1 Reply Last reply Reply Quote 0
        • MattSpellerM
          MattSpeller @garak0410
          last edited by

          @garak0410 um, wasn't what I meant, but interesting none the less... check out here. Words escape me today. When it runs out of space and has to reclaim it I've had VM's fall to their knees in hyper-v.

          upload-18f923bf-d1c0-444f-910b-215140a1a7ff

          garak0410G 1 Reply Last reply Reply Quote 0
          • garak0410G
            garak0410 @MattSpeller
            last edited by

            @MattSpeller said:

            @garak0410 um, wasn't what I meant, but interesting none the less... check out here. Words escape me today. When it runs out of space and has to reclaim it I've had VM's fall to their knees in hyper-v.

            upload-18f923bf-d1c0-444f-910b-215140a1a7ff

            Neither my host or the VM have the SYSTEM PROTECTION tab...I'm having a brain lock as to where else that could be so I can check...

            MattSpellerM 1 Reply Last reply Reply Quote 0
            • MattSpellerM
              MattSpeller @garak0410
              last edited by

              @garak0410 Might have been the same thing afterall, I've not played with server 2012 yet

              ? 1 Reply Last reply Reply Quote 0
              • ?
                A Former User @MattSpeller
                last edited by

                @MattSpeller said:

                @garak0410 Might have been the same thing afterall, I've not played with server 2012 yet

                It has the tab but it can be disabled from a registry key.

                1 Reply Last reply Reply Quote 1
                • coliverC
                  coliver
                  last edited by

                  Have you done any P2V's to this host recently?

                  garak0410G 1 Reply Last reply Reply Quote 0
                  • garak0410G
                    garak0410 @coliver
                    last edited by

                    @coliver said:

                    Have you done any P2V's to this host recently?

                    No sir...

                    1 Reply Last reply Reply Quote 0
                    • ?
                      A Former User
                      last edited by

                      Have you tried disabling Symantec just for a little while to see if that is the issue?

                      garak0410G 1 Reply Last reply Reply Quote 0
                      • garak0410G
                        garak0410 @A Former User
                        last edited by

                        @Aaron-Studer said:

                        Have you tried disabling Symantec just for a little while to see if that is the issue?

                        It is happening right now...not at 100% but hovering between 25 and 75%, back and forth..., so I disabled (but not killed process) Symantec and CPU did drop..

                        ? 1 Reply Last reply Reply Quote 0
                        • ?
                          A Former User @garak0410
                          last edited by

                          @garak0410 said:

                          @Aaron-Studer said:

                          Have you tried disabling Symantec just for a little while to see if that is the issue?

                          It is happening right now...not at 100% but hovering between 25 and 75%, back and forth..., so I disabled (but not killed process) Symantec and CPU did drop..

                          Time for a new AV. Also you should make sure File system scans are disabled at least during the day and use the on access protection for most of the time. You can do scans at night but make sure it does not interfere with backups.

                          garak0410G 1 Reply Last reply Reply Quote 0
                          • scottalanmillerS
                            scottalanmiller
                            last edited by

                            Take a look at Webroot 🙂

                            1 Reply Last reply Reply Quote 1
                            • garak0410G
                              garak0410 @A Former User
                              last edited by

                              @thecreativeone91 said:

                              @garak0410 said:

                              @Aaron-Studer said:

                              Have you tried disabling Symantec just for a little while to see if that is the issue?

                              It is happening right now...not at 100% but hovering between 25 and 75%, back and forth..., so I disabled (but not killed process) Symantec and CPU did drop..

                              Time for a new AV. Also you should make sure File system scans are disabled at least during the day and use the on access protection for most of the time. You can do scans at night but make sure it does not interfere with backups.

                              Thanks for the tips...I never looked into this deeper because it has run pretty well since this server went live last March. I did see the slow CPU from last Friday that a full scan kicked off right before the slowness. And 2-3 weeks ago, the scan started at 1AM but somehow went into a suspended state.

                              Since we renew in December, I may offload the Suite to another server until it is time to renew/update...And may look at loading the latest version of it as well.

                              And also, just disabling the CLIENT brought the CPU down...the suite/server is still running.

                              1 Reply Last reply Reply Quote 0
                              • AmbarishrhA
                                Ambarishrh
                                last edited by

                                Just a thought, can you see if you can set SEP processor affinity to only 1 processor?

                                Open task manager, select the process- right click - set Affinity- from list of all processor, deselect all and just select one processor.

                                garak0410G 1 Reply Last reply Reply Quote 2
                                • garak0410G
                                  garak0410
                                  last edited by

                                  Disabling the A/V still has no effect...rebooted file server last night (and A/V remained disabled) and came in to the pesky SYSTEM PROCESS being over 50%...

                                  cpu01.jpg

                                  cpu02.jpg

                                  1 Reply Last reply Reply Quote 0
                                  • garak0410G
                                    garak0410 @Ambarishrh
                                    last edited by

                                    @Ambarishrh said:

                                    Just a thought, can you see if you can set SEP processor affinity to only 1 processor?

                                    Open task manager, select the process- right click - set Affinity- from list of all processor, deselect all and just select one processor.

                                    Will this work when the SYSTEM process is being the biggest culprit?

                                    1 Reply Last reply Reply Quote 0
                                    • garak0410G
                                      garak0410
                                      last edited by

                                      Oh and one more interesting note...the A/V was disabled...so I re-enabled it....waited a few seconds and then disabled it and BAM, SYSTEM high CPU stopped and back to "normal"

                                      1 Reply Last reply Reply Quote 0
                                      • DashrenderD
                                        Dashrender
                                        last edited by

                                        Might be a shim that disabling the AV doesn't solve. you might have to uninstall it.

                                        garak0410G 1 Reply Last reply Reply Quote 0
                                        • garak0410G
                                          garak0410 @Dashrender
                                          last edited by

                                          @Dashrender said:

                                          Might be a shim that disabling the AV doesn't solve. you might have to uninstall it.

                                          I am considering moving the suite (management) to another serve...but wondering if I just do not do A/V at all on the file server...

                                          coliverC 1 Reply Last reply Reply Quote 0
                                          • coliverC
                                            coliver @garak0410
                                            last edited by coliver

                                            @garak0410 said:

                                            @Dashrender said:

                                            Might be a shim that disabling the AV doesn't solve. you might have to uninstall it.

                                            wondering if I just do not do A/V at all on the file server...

                                            That to me sounds like a bad idea. Could you just not turn off active scanning and change the schedule to a different time? Or better yet get rid of Symantec and get something like Webroot? I have that on all of my servers and it runs super lean.

                                            garak0410G 1 Reply Last reply Reply Quote 1
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