Thanks for the replies - I've also been searching the archives of both the raid and lvm lists and found some more on it. It seems OK until I take a snapshot, so need to look more into the lvm stuff if I'm going to continue using it, but I'm starting to think that lvm on raid5 might be more hassle than it's worth, and I managed to get it to crash too when using dump/restore and (s)tar to a SCSI tape system while running an lvm snapshot. I'm now thinking that as I have enough disk space, I'd be better off with 3 raid5 partitions and simply copy the data from the life partition onto the 'yesterday' partition every night rather than use the lvm snapshot facility... (I was using ext2 btw, was thinking about XFS, but maybe that'd just be too much for the system!!!) Cheers, Gordon - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html