I'm considering setting up a poor man's cluster. The hardware I'd like to use for some critical services is especially attractive for price/space/performance reasons, however it only has a single power supply. I'm using S10 U8 and can't migrate to OpenSolaris.
It's fine if a server dies (ie, power supply failure) and I have to manually get the service running on the other server. But what's not ok is to lose data from the last transaction on the "primary" server. For this reason I'm reluctant to do a zfs send | zfs recv setup (besides the bad vibes I get from such a plebian method anyway). I was thinking that rather than what I'd normally do which is mirror two data drives locally, I could have one drive local and use one drive from the partner server shared via iSCSI. Comments? If that's feasible and sane, then on the one hand it seems attractive to use a zfs backing store, but I'd have a zfs filesystem on top of the zfs backing store, which doesn't seem helpful and I'm guessing would reduce the total space available, so I'd then have to not use the whole local disk. So I think I would want to use a raw backing store, yes? Performance is not a concern. If no one is throwing red flags yet, then to extend the idea further maybe I would move the redundant server offsite (I will have metro ethernet connectivity) and do iSCSI over the WAN and get DR for free. -frank _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
