Can you supply some more details on your setup/configuration?
- Is spooling implemented
- Do you backup to tape or disk
- have you implemented DTDTT
- does the backup device has it's own HBA
- what is the load of the ESX server
- any errors/warnings etc in ESX logs?
etcetera

Olaf

PS
In would not be too surprised if discussing this (also) on a Vmware 
forum/irc-channel would be more helpfull.

PPS
A dedicated backup VM with dedicated resources would probably be best if 
not mandatory. But that would probably also be the case for alternative 
Backup software.


Mingus Dew wrote:
> All,
>      I have ESXi 4.0 servers clustered and hosting a variety of 
> Virtual Machines. The VM's vary between RHEL, Solaris, Windows, and 
> Debian. I run various versions of the bacula-fd (5.x, 2.x, 3.x) on 
> these VMs for taking OS backups. No matter what the FD version though, 
> I am seeing high IOwait on the VM that the backup is running on, and 
> then also problems with resource availability on other VMs while the 
> FD is active.
>
>      Just wondering if anyone else has experience similiar issues, 
> what the details of your issue are, and any possible permutations.
>
> Thanks,
> Shon
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