On Sat, 14 Jun 2008, Brian Wilson wrote: > What are the odds, in that configuration of zpool (no mirroring, > just using the intelligent disk as concatenated luns in the zpool) > that if we have this silent corruption, the whole zpool dies? If > anyone knows, what's the comparative odds of the VxVM volume, UFS or > VxFS filesystem similarly dying in the same scenario?
I don't know the answer to that. Probably nobody knows the answer since there is no formal research project to analyze it and no automatic collection agent to report the data. You can scan the list archives to find the zfs horror stories. Most of the "whole pool died" horror stories are not due to data loss on a properly maintained RAID array. Zfs does not come with fsck. That is both good and bad. With fsck you can simply say 'yes' to the obscure questions and (if you are lucky) after a few hours (or a day), there will be something left and perhaps that critical file is still to be found in the lost+found directory if you can figure out which one it is among all the files which which were previously deleted and are now ressurected. With zfs you can scrub the pool at the system level. This allows you to discover many issues early before they become nightmares. Bob ====================================== Bob Friesenhahn [EMAIL PROTECTED], http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
