During the unmount operation of VMFS datastore we perform following steps.
Detach scsi lun operation is getting failed with “cannot change host configuration” with following error in hostd and vmkernel logs.
This is very critical issue for us.
Corresponding logs.
2015-10-12T21:29:26.088Z cpu7:34586 opID=e7de38b1)World: 14299: VC opID 49cf6a36-9d maps to vmkernel opID e7de38b1
2015-10-12T21:29:26.088Z cpu7:34586 opID=e7de38b1)LVM: 13173: File system '[PURE_40GB_DS_GX_BACKUP_165_2_159, 561c25ff-1e85d11c-9e1a-0026b9529af6]' (LV snap-2fa22fd0-549af13e-228dc311-e67d-0026b9529af6) un-mounted.
2015-10-12T21:29:36.752Z cpu5:36977081 opID=cee81ea4)World: 14299: VC opID 3a07085f-3e maps to vmkernel opID cee81ea4
2015-10-12T21:29:36.752Z cpu5:36977081 opID=cee81ea4)WARNING: ScsiDevice: 7509: Detach failed for device :naa.624a9370c9cfbacd653c81f20002cca9. Exceeded the number of devices that can be detached, please cleanup stale detach entries.
2015-10-12T21:29:40.031Z cpu7:36977081)World: 14299: VC opID hostd-b7e4 maps to vmkernel opID 87de59b4
VmFileSystem: uuid:549af13e-4c537d9e-e170-0026b9529af6, Label:PURE_40GB_DS,logicalDevice:549af13e-228dc311-e67d-0026b9529af6, headExtent:naa.624a9370c9cfbacd653c81f2000115f1:1
VmFileSystem: Fs Info from UnresolvedVmfsVolume
VmFileSystem: uuid:561c25ff-1e85d11c-9e1a-0026b9529af6, Label:PURE_40GB_DS_GX_BACKUP_165_2_159,logicalDevice:snap-2fa22fd0-549af13e-228dc311-e67d-0026b9529af6,headExtent:naa.624a9370c9cfbacd653c81f20002cca9:1
2015-10-12T21:29:36.752Z [28880B70 error 'Hostsvc' opID=3a07085f-3e user=vpxuser] Failed to Set Device Status OFF for lun with
--> Uuid 02000b0000624a9370c9cfbacd653c81f20002cca9466c61736841: Sysinfo error on operation returned status : Limit exceeded. Please see the VMkernel log for detailed error information
2015-10-12T21:29:36.753Z [28880B70 info 'Default' opID=3a07085f-3e user=vpxuser] AdapterServer caught exception: vim.fault.HostConfigFault
2015-10-12T21:29:36.753Z [28880B70 info 'Vimsvc.TaskManager' opID=3a07085f-3e user=vpxuser] Task Completed : haTask-ha-host-vim.host.StorageSystem.detachScsiLun-42295874 Status error
2015-10-12T21:29:36.753Z [28880B70 info 'Solo.Vmomi' opID=3a07085f-3e user=vpxuser] Activation [N5Vmomi10ActivationE:0x27a62a90] : Invoke done [detachScsiLun] on [vim.host.StorageSystem:storageSystem]
2015-10-12T21:29:36.753Z [28880B70 verbose 'Solo.Vmomi' opID=3a07085f-3e user=vpxuser] Arg lunUuid:
--> "02000b0000624a9370c9cfbacd653c81f20002cca9466c61736841"
2015-10-12T21:29:36.753Z [28880B70 info 'Solo.Vmomi' opID=3a07085f-3e user=vpxuser] Throw vim.fault.HostConfigFault
2015-10-12T21:29:36.753Z [FFDEE920 info 'Hostsvc.VmkVprobSource'] VmkVprobSource::Post event: (vim.event.EventEx) {
--> dynamicType = <unset>,
--> key = 668759416,
--> chainId = 0,
--> createdTime = "1970-01-01T00:00:00Z",
--> userName = "",
--> datacenter = (vim.event.DatacenterEventArgument) null,
--> computeResource = (vim.event.ComputeResourceEventArgument) null,
--> host = (vim.event.HostEventArgument) {
--> dynamicType = <unset>,
--> name = "sg-esx7.commvault.com",
--> host = 'vim.HostSystem:ha-host',
--> },
--> vm = (vim.event.VmEventArgument) null,
--> ds = (vim.event.DatastoreEventArgument) null,
--> net = (vim.event.NetworkEventArgument) null,
--> dvs = (vim.event.DvsEventArgument) null,
--> fullFormattedMessage = <unset>,
--> changeTag = <unset>,
--> eventTypeId = "esx.problem.scsi.device.detach.failed",
--> severity = <unset>,
--> message = <unset>,
--> arguments = (vmodl.KeyAnyValue) [
--> (vmodl.KeyAnyValue) {
--> dynamicType = <unset>,
--> key = "1",
--> value = "naa.624a9370c9cfbacd653c81f20002cca9",
--> }
--> ],
--> objectId = "ha-eventmgr",
--> objectType = "vim.HostSystem",
--> objectName = <unset>,
--> fault = (vmodl.MethodFault) null,
--> }
2015-10-12T21:29:36.753Z [28880B70 info 'Solo.Vmomi' opID=3a07085f-3e user=vpxuser] Result:
--> (vim.fault.HostConfigFault) {
--> dynamicType = <unset>,
--> faultCause = (vmodl.MethodFault) null,
--> msg = "",
--> }
2015-10-12T21:29:36.754Z [FFDEE920 info 'Vimsvc.ha-eventmgr'] Event 23121 : Detach failed for device :naa.624a9370c9cfbacd653c81f20002cca9. Exceeded the number of devices that can be detached, please cleanup stale detach entries.
Check to see if you have other storage devices that are detached but not permanently removed.
If you want the device to permanently decommission from an ESXi host, manually remove the NAA entries from the host configuration:
I had the same problem. It occurs if you frequently mount snapshots. This error occurs around the time you have 512 old entries. You can remove them one at a time as mentioned above. Here is a script to remove all the stale entries:
esxcli storage core device detached list|grep -E "^naa|^eui"|awk '{print $1}'|while read i;do echo "Removing device \"$i\" from the detached list ...";esxcli storage core device detached remove -d "$i";sleep 1;done