VCB Error during backup

[Frans_P]

Hi everyone,

We have queued some VM's in a backupsession and from ten VM's three of them failed with this message:

Completing current object backup process

VCB error: Could not renew disk lease. Aborting operation. The managed object of type "vim.host.DiskManager.Lease" identified by the MoRef "session[9F988E44-262C-411A-BD02-DE332CF6AEE1]ECB38FFE-1374-4ECA-81EE-8DD0D3E807EF" could not be found. Error: Failed to export the disk: I/O Operation failed An error occurred, cleaning up...

Does anyone know what this exactly mean and even better; how i can avoid this error?

Regards,

Joris

[caciolli]

I saw similar messages when a new LUN is exposed to esx but not to VCB proxy, or did not rescan on VCB proxy.

[Frans_P]

Hi Caciolli,

Thanks for helping me out.

All the LUNs are presented to this server. When i start a vcbsandbg.exe i can see all the path's of my LUNs where my VM's are located.

[caciolli]

Are all the three failed vm on the same LUN ?

What is your SAN environment ? Did you disabled inactive path to the LUNs in your VCB proxy ?

Try to change the loggin level to 6 ( -L 6) inside your script, and let see if it helps.

[Frans_P]

Hey Caciolli,

We use a Blade460c with VEEAM to backup our VM's. On the Blade is VCB located aswell. On the FC network we have a HP EVA 4400 with three vdisks, which are presented to all ESX servers and the VEEAM server.

The VM's that failed to backup are all located on different vdisks.

I assume i cannot change the VCB script because we use VEEAM. I also have to note that i didn't configure anything about VCB, i just installed it and that's it.

[caciolli]

Can you try to use vcbmounter by itself against one of the 3 failing vm and using logging level 6 ?

[Frans_P]

I'll try that tonight. Note that other VM's that got backed up properly where on the same volume as the failed ones.

[dconvery]

I have seen this many times. You will need to set your driver signing policy to "prompt" and then re-install VCB. It will prompt you to allow the install of the virtual disk driver. see the attached screen shots.

Dave

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[Frans_P]

Okay i got the answer:

Edit /etc/vmware/hostd/config.xml and check for this section:

<blklistsvc>

<enabled>true</enabled>

</blklistsvc>

Make it look this way:

<blklistsvc>

<leaseTimeoutSecs>180</leaseTimeoutSecs>

<enabled>true</enabled>

</blklistsvc>

And solved!