On Tue, 20 Jul 2010, Daniel Herrington wrote:

> I'm trying KVM out as a replacement for Vmware ESX. I have installed 
> Ubuntu 10.04 x86_64 on an HP DL360. Setting up a CentOs 5.4 image, 
> the install took 10 hours. I'm guessing the problem lies in the way 
> I've get storage pools and volumes setup?
>
> I originally tried to do a storage pool on a physical disk device, 
> but had trouble creating a volume on it after. Finally decided to 
> abandon that in favor of pre-formatted block device storage pool. 
> Has anyone used pre-formatted block devices with KVM before?
>
> My reasoning for physical disk, and then the block device storage 
> pools was I assumed it would be faster than simply a file system 
> directory. I'm curious if anybody on this list has experience with 
> the best setup for storage pools? What criteria did you use to 
> determine which type to go with?

I'm interested to know what applications you plan to run in the VM 
that make disk I/O performance so important.

My initial Xen installations several years ago were all to KVM 
partitions, but recently I've settled on file-based disk 
representations:

  * they're easy to rsync to other hosts and/or backup
  * i haven't noticed any significant performance difference

-- 
Paul Heinlein <> [email protected] <> http://www.madboa.com/
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