Archive for January, 2011

The VMware VirtualCenter Server service terminated with service-specific error 2 (0x2)

When trying to connect to vCenter through the vSphere Client, the connection attempt failed with error

vShere Client Error

 After investigations, it was discovered that the vCenter service stopped for no reasonable reason. Revising the VC server’s System Event Log, the next error was logged:

The VMware VirtualCenter Server service terminated with service-specific error 2 (0x2).

Event Log

Cause: You are trying to start the VC service before SQL Service starts.  The VC Service should automatically try to restart on its own after 5 minutes after starting the SQL Service.

Resolution: To avoid this and to ensure when trying to start the VC service that the SQL service will start automatically, follow these steps to configure services’ dependencies:

  1. Obtain the service name for your SQL Service – in Registry Editor, browse to HKLM\System\CurrentControlSet\Services and look for entries starting with MSSQL.  In all likelyhood, yours will be called either MSSQL or MSSQL$SQLEXPRESS (ignore MSSQLServerADHelper).
  2. Now browse to HKLM\System\CurrentControlSet\Services\vpxd
  3. Open the REG_MULTI_SZ value called DependOnService
  4. Add a line called MSSQL$SQLEXPRESS (or whatever value you determined above)
  5. Ensure that the last line in the value is blank
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2 Comments

What is hostd?

hostd is an app that runs in the Service Console that is responsible for managing most of the operations on the ESX machine.  It knows about all the VMs that are registered on that host, the luns/vmfs volumes visible by the host, what the VMs are doing, etc.  Most all commands or operations come down from VC through it.  ie, powering on a VM, VM vMotion, VM creation, etc.

vpxa also runs on the Service Console and talks to VC.  I believe it acts as an intermediary between VC and hostd. I think it also does some housekeeping on the ESX host, but not as much as hostd.

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