# [OmniOS-discuss] NFS 4.2 Support - Sparse Files

Mini Trader miniflowtrader at gmail.com
Wed Jan 4 23:59:15 UTC 2017

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    That is unfortunate.

    The requirement stems from the need to perform an incremental backup to
    cloud storage  (backblaze).

    Many of my files are large and sparse (VMs). Unfortunately the only
    software that I have found to perform the backups runs on BSD or Linux
    hence the use for NFS.

    Running the utility over NFS without sparse support is not ideal.

    If anyone has any recommendations for an incremental cloud storage solution
    that is compatible with OmniOS it would be greatly appreciated. I realize
    that ZFS send works quite well but haven't found an off site provider who I
    consider to be cost effective.

    On Wed, Jan 4, 2017 at 2:01 PM Dan McDonald <danmcd at omniti.com> wrote:

    >
    >
    > > On Jan 4, 2017, at 1:19 PM, Mini Trader <miniflowtrader at gmail.com>
    > wrote:
    >
    > >
    >
    > > Hello all,
    >
    > >
    >
    > > Is there any support for NFS 4.2 in Illumos?  I am interested in the
    > Sparse File functionality that has been introduced.
    >
    >
    >
    > There is not, currently.
    >
    >
    >
    > There have been some stop/starts on this, but at the end of the day, at
    > least one illumos shop's customers basically didn't care enough to make it
    > a priority for that shop.  The other illumos shops either have similar
    > customer viewpoints, don't care about NFS at all, or don't have the
    > resources to devote to such a nontrivial project.
    >
    >
    >
    > I'm sorry I don't have a better answer for you at the moment.
    >
    >
    >
    > Dan
    >
    >
    >
    >
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