[ovirt-users] Why so long to add virtual HDD?

Alan Murrell lists at murrell.ca
Mon May 18 16:59:43 UTC 2015

On 05/18/2015 01:39 AM, Maor Lipchuk wrote:
> Since your disks are configured as pre-allocation, vdsm use the dd command when creating them.
> perhaps you could try to monitor the dd command to analyze the progress.

I will see if I can do that, though if it is using dd, that would
explain the time it takes.

> BTW, Is there any reason not to use thin provisioning?

I would like to avoid over-allocating the disk space.  If I
thin-provision, and over-allocate my physical space, there may come a
day when I run out of physical space even though I have "space"
avaialble on my VMs.


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