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Re: [Xen-users] iSCSI and LVM

To: Jonathan Dye <jdye@xxxxxxxxxxxxxxxxxxxxx>
From: Javier Guerra Giraldez <javier@xxxxxxxxxxx>
Date: Wed, 16 Jun 2010 10:44:19 -0500
Cc: xen-users@xxxxxxxxxxxxxxxxxxx, Igor Shalakhin <igor@xxxxxxxxx>
Delivery-date: Wed, 16 Jun 2010 08:45:42 -0700
List-id: Xen user discussion <xen-users.lists.xensource.com>

On Wed, Jun 16, 2010 at 10:18 AM, Jonathan Dye
<jdye@xxxxxxxxxxxxxxxxxxxxx> wrote:
> in fact that's exactly right. ÂZFS is build around copy-on-write semantics. Â 
> snapshot writes are no more expensive than filesystem writes.

it does COW on metadata.  normal writes shouldn't copy since there's
nothing to preserve.

-- 
Javier

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References:
- Re: [Xen-users] iSCSI and LVM
  - From: Javier Guerra Giraldez
- Re: [Xen-users] iSCSI and LVM
  - From: Jonathan Dye

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