Posted in: VMware

Cluster Tasks fails with “namespace” error

You may experience issues where cluster task specially like putting the host in maintenance mode, deleting a cluster etc will fail with below error: 2020-12-21T12:43:56.848-08:00 info vpxd[10034] [Originator@6876 sub=MoHost opID=opId-18b14-105289-d9] WCP exitMaintenanceMode vAPI returns error: Error: –> com.vmware.vapi.std.errors.unauthenticated –> Messages: –> vapi.security.authentication.invalid<Unable to authenticate user> –> 2020-12-21T12:43:56.851-08:00 error vpxd[10034] [Originator@6876 sub=MoHost opID=opId-18b14-105289-d9] [Delete] Failed to […]

Posted in: VMware

PSOD on ESXi version 7.0 Update 2 with a race condition by “portset lock acquire request”

Please check “vmkernel.log” for following entries to confirm if you are affected by the the race condition bug The PSOD issue has been resolved by VMware in their future release of ESXi host versions above 7.0 Update 3*. *Please Note: Check KB 86398 for more detailsQ. What are the tentative timelines for the next vSphere 7.x […]

Posted in: VMware

VCSA “wcp” service keeps crashing

“wcp” service crashes due to which the ESXi host can not be put out of maintenance mode (other symptoms can also occurs however I have never come across those) The VCSA “wcp” service keeps crashing while starting due to an invalid entry in the wcp config file Error executing start on service wcp. Details { […]

Posted in: Linux, Networking, VMware

Important ESXi Networking Commands

To get the available virtual switches information on ESXi host :- # esxcfg-vswitch -l [root] esxcfg-vswitch -lSwitch Name Num Ports Used Ports Configured Ports MTU UplinksvSwitch0 6656 4 128 9000 vmnic3 PortGroup Name VLAN ID Used Ports UplinksVM Network 0 0 vmnic3Management Network 4095 1 vmnic3 DVS Name Num Ports Used Ports Configured Ports MTU […]

Posted in: VMware

How to create VMFS partition on USB device for ESXi 6.x

Plug in the USB device to the ESXi host Make sure that usbarbitrator service is off on the ESXi host so that the host will not use it as Passthrough : # /etc/init.d/usbarbitrator stop Check the usb in core device list : # esxcli storage core device list t10.SanDisk00Cruzer_Blade000000004C530001111202103073    Display Name: Local USB Direct-Access […]

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