From: Paolo Bonzini <pbonzini@redhat.com>
To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: Timon Wang <timonwst@gmail.com>, kvm@vger.kernel.org
Subject: Re: Is there any solution in KVM that like VAAI does in EXSI
Date: Wed, 27 Feb 2013 18:23:43 +0100 [thread overview]
Message-ID: <512E411F.9050002@redhat.com> (raw)
In-Reply-To: <20130226151333.GA8662@stefanha-thinkpad.redhat.com>
Il 26/02/2013 16:13, Stefan Hajnoczi ha scritto:
>> > Is there any solution in KVM that works like VAAI does in EXSI, I
>> > found a PPT that posted in Sep. 2012, which said that storage offload
>> > will be consider in future.
>> > I am wondering anybody knows about this, or provide some information about this?
> Thin Provisioning support is being added to QEMU. Some configurations
> already work - virtio-scsi on a block device or raw file supports
> discard, for example.
>
> Linux recently got Zero Blocks support in the form of the BLKZEROOUT
> ioctl. It is not being exploited by QEMU or libvirt yet.
>
> Copy Offload, not aware of active development. Perhaps libvirt or
> libstoragemgmt will support it.
Copy offload is in the works (still at the whiteboard stage, though).
Paolo
prev parent reply other threads:[~2013-02-27 17:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-26 5:49 Is there any solution in KVM that like VAAI does in EXSI Timon Wang
2013-02-26 15:13 ` Stefan Hajnoczi
2013-02-27 17:23 ` Paolo Bonzini [this message]
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