# [OmniOS-discuss] High Availability storage with ZFS

Vincenzo Pii piiv at zhaw.ch
Tue Jan 6 12:54:29 UTC 2015

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    2015-01-06 12:16 GMT+01:00 Filip Marvan <filip.marvan at aira.cz>:

    >  Hi
    >
    >
    >
    > as few guys before, I'm thinking again about High Availability storage
    > with ZFS. I know, that there is great commercial RSF-1, but that's quite
    > expensive for my needs.
    >
    > I know, that Sašo did a great job about that on his blog
    > http://zfs-create.blogspot.cz but I never found the way, how to
    > successfully configure that on current OmniOS versions.
    >
    >
    >
    > So I'm thinking about something more simple. Arrange two LUNs from two
    > OmniOS ZFS storages in one software mirror through fibrechannel. Arrange
    > that mirror in client, for example mdadm in Linux. I know, that it will
    > have performance affect and I will lost some ZFS advantages, but I still
    > can use snapshots, backups with send/receive and some other interesting ZFS
    > things, so it could be usable for some projects.
    >
    > Is there anyone, who tried that before? Any eperience with that?
    >
    >
    >
    > Thank you,
    >
    >
    >
    > Filip Marvan
    >
    >
    >
    >
    >

    Hi Filip,

    I am not directly answering your question, but I've gone through the
    configuration of HA (with pacemaker) on OmniOS in the past months and
    collected all my notes here:
    http://blog.zhaw.ch/icclab/use-pacemaker-and-corosync-on-illumos-omnios-to-run-a-ha-activepassive-cluster/,
    maybe it can be useful for you.

    In my experience, running pacemaker correctly on OmniOS is just the tip of
    the iceberg, then comes the implementation/configuration of the resource
    agents (and the cluster itself!).
    If this way is worth it, rather than a quicker and more custom solution,
    depends on the long term plans :).

    Best regards,
    Vincenzo.

    --
    Vincenzo Pii
    Researcher, InIT Cloud Computing Lab
    Zurich University of Applied Sciences (ZHAW)
    blog.zhaw.ch/icclab
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