On Tue, Jan 6, 2015 at 5:16 AM, Filip Marvan <[email protected]> wrote:
> 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? > While this sounds technically possible, it is not HA. Your client is the single point of failure. I would wager that mdadm would create more availability issues than it would be solving. I run RSF-1 and HA is still hard to achieve. I don't think I have gained any additional up-time overcoming failures, but it definitely helps with planned maintenance. Unfortunately, there are still too many ways a zfs pool can fail that having a second server connected does not help. -Chip > > > Thank you, > > > > Filip Marvan > > > > > > _______________________________________________ > OmniOS-discuss mailing list > [email protected] > http://lists.omniti.com/mailman/listinfo/omnios-discuss > >
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