> With all of the talk about performance problems due to > ZFS doing a sync to force the drives to commit to data > being on disk, how much of a benefit is this - especially > for NFS?
It depends. For some drives it's literally 10x. > Also, if I was lucky enough to have a working prestoserv > card around, would ZFS be able to take advantage of > that at all? I'm working on the general lack-of-NVRAM-in-servers problem. As for using presto, I don't think it'd be too hard. We've already structured the code so that allocating intent log blocks from a different set of vdevs would be straightforward. It's probably a week's work to define the new metaslab class, new vdev type, and modify the ZIL to use it. Jeff _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
