[OpenIndiana-discuss] Is there any implementation of VSS for a ZFS iSCSI snapshot on Solaris?

[Leonid Korokh]

Hi,
When you are exporting block device via ISCSI to Windows host, Windows see
it like a direct attached scsi disk. VSS is the feature of Windows and it
works on block level of the disk device. So snapshots made by VSS will not
be seen as zfs snapshots and vise versa. Moreover there are no command in
SCSI protocol that describes snapshot functionality.  As i know for now
there is no existing implementation of VSS provider that can integrate
snapshot functionality from zfs and NTFS. And as I can see it will never be
done because it's really hard to implement VSS+zfs snapshot provider for
Windows.
________________________________________
Leonid S. Korokh
CIO
Aladdin Russia

Phone: +7 (495) 223-0001 (30 lines)
Fax: +7 (495) 646-0882
Web: www.aladdin-rd.ru


On Thu, Sep 15, 2011 at 1:05 AM, S Joshi <bit05013 at hotmail.com> wrote:

>
>
> I am using a Solaris + ZFS environment to export a iSCSI
> block layer device and use the snapshot facility to take a snapshot of the
> ZFS
> volume. Is there an existing Volume Shadow Copy (VSS) implementation on
> Windows for this environment?
>
>
>
> Thanks
>
>
>
> S Joshi
>
>
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