6 Replies Latest reply on Nov 20, 2012 8:01 AM by adb_Z

    Critical Storage Alert on one of my hosts

    crazex Hot Shot

       

      I've recently applied Update 4 to my VI3 cluster.  The upgrade went smooth, and everything has been running fine for about 3 weeks now.  I noticed yesterday that one of my hosts was reporting a critical state.  When I use VC to check the health status I see that the critical alert is coming from Storage.  The alert that I get is:

       

       

      Disk Drive Bay 1 Drive 1: in Critical Array - Assert

       

       

      This message appears for Drive 1 - Drive 7.  The host does not have 7 disks.  It has 4x73GB 15k SAS drives configured in a RAID5, in slots 0-3.  The server is not reporting any errors, and Open Manage also reports no errors.  I tried searching the community, but I wasn't able to find a post with a similar issue.  Any help would be greatly appreciated.  This problem does't seem to be affecting the server, but I'd like to get it cleared up.  I've attached a screen, of the alert, from VC.

       

       

       

       

       

      -Jon-

      VMware Certified Professional

       

       

        • 1. Re: Critical Storage Alert on one of my hosts
          RParker Guru

          Well I don't see what your hardware is.  Machine type, RAID type, etc..

           

          But in most cases RAIDS have a designated enumeration, the one's I know start with drive 0.  since yours shows Drive 7 I am going to assume (again not knowing your hardware setup) that it has 8 bays.  So slots 0-3 are empty, and 4-7 have your drives.  Either that or it's a split backplane, and for some reason it starts at 4, but I am guessing it has 8 slots.

           

          That's why you have a drive 7, that's the number matching it's physical slot.  If you look at the front of the machine careful, I bet you will see the drive designations, 0,1,2 etc..  That's when you get an error, it will say Drive 3 bad, you know exactly which one to pull or replace.

           

          Since this happened after the update, I'd say your hardware needs a firmware patch, the current firmware level probably doesn't support the ESX U4.  Have you tried calling your vendor to see if they have a new patch?  Or perhaps this machine is not on the HCL for ESX?

           

           

           

           

          http://s254920738.onlinehome.us/resources/VMW_Q109_LGO_vExpert_k.jpg

          • 2. Re: Critical Storage Alert on one of my hosts
            crazex Hot Shot

            The server only has 1 x6 backplane.  It has spots for 6 3.5" SAS drives.  The server is a Dell PowerEdge 2950.  The firmware on this machine is identical to that of my other hosts, which are also 2950s, and none of them have this problem.  The 4 SAS drives in the server are located in bays 0-3.  Also, as stated above, the drives are configured in a RAID 5.  The only place I see this error is in VC.  The server reports no problems with any of the drives.

             

             

             

             

            -Jon-

            VMware Certified Professional

            • 3. Re: Critical Storage Alert on one of my hosts
              RParker Guru

              If that's the case then, you obviously don't have hardware issues, just ignore the hardware issue.  Reinstalling ESX would probably fix it, trying to figure out where the problem is for this is a pain.  Since your other servers are working you can rebuild it inside of 10 minutes (not a upgrade a new install and retain the VMFS).

               

               

               

              http://s254920738.onlinehome.us/resources/VMW_Q109_LGO_vExpert_k.jpg

              1 person found this helpful
              • 4. Re: Critical Storage Alert on one of my hosts
                Troy Clavell Guru
                vExpertUser Moderators

                you may also try to Reset Sensors and/or restart hostd on the ESX Host(s) in question.  That may clear up the false positives.

                 

                 

                 

                service mgmt-vmware restart

                1 person found this helpful
                • 5. Re: Critical Storage Alert on one of my hosts
                  crazex Hot Shot

                  Restarting the mgmt services was the first thing that I tried.  When I get some time, I'm going to reboot the host, and see if the problem clears itself up.  If not, I'll try reinstalling ESX.

                   

                   

                   

                   

                  -Jon-

                  VMware Certified Professional

                  • 6. Re: Critical Storage Alert on one of my hosts
                    adb_Z Novice

                    There would be a drive missing in server..run a sanity check on server