On May 30, 2011, at 6:16 PM, Jim Klimov wrote: > > Multipathing is handled by mpxio. > > So I configure MPxIO, then feed the "zpool create" device > names of multipathed aggregates, and hopefully failover > should work.
Yes, it is that simple :-) > But can two paths work in parallel to double the bandwidth > for ZFS (to single disk)? Or this depends on particular chips > and drivers? It depends more on the end-points than the stuff in the middle. > Rationale: I've read a review article of an enterprise SSD > which was sold back in SAS1 times (3Gbit/s) but performed > at over 500Mbyte/s - and the reviewers used parallel MPIO > with an LSI 9211-4i card in order to have so much actual > bandwidth. The highest I've seen to a single SAS disk is 780 MB/sec sustained. Obviously, that wasn't a HDD :-) -- richard _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
