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Date:      Fri, 29 May 2015 08:37:31 +0100
From:      krad <>
To:        Luca Ferrari <>
Cc:        "Chad Leigh Shire.Net LLC" <>,  "" <>, Jaime Kikpole <>
Subject:   Re: ZFS in a VM?
Message-ID:  <>
In-Reply-To: <>
References:  <> <> <>

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in a vm i think its more a manageability thing for me. Its not about
performance as if i wanted that I would be bare metal. Boot environments,
being able to roll back specific  areas of the system are tools not to be
sniffed at.

On 28 May 2015 at 17:21, Luca Ferrari <> wrote:

> On Wed, May 27, 2015 at 9:39 PM, Chad Leigh Shire.Net LLC
> <> wrote:
> > I do.  I do it not so much for any performance benefits, if any, ZFS
> offers, but more for data integrity.  You need to tune it since the VM
> based disks are not the same as physical disks.  I run into performance
> issues when the =E2=80=9Cdisk=E2=80=9D gets to a certain usage level (in =
terms of used
> capacity).
> I'm not sure ZFS on a virtual disk will help a lot on a disk based
> corruption, but I'm not a guru in this subject.
> I personally tend to use ufs on my virtual machines, relying more on
> the host file system for no data corruption. This allows me to have
> smaller machines and use the ram for other stuff.
> But this is my personal point of view.
> As pointed out in this thread: tuning ZFS on virtual machine is not
> the same as tuning it on real disks (and this is pretty much valid for
> every tuning operation in virtual machines).
> Luca
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