> Don Enrique wrote: > > Now, my initial plan was to create one large pool > comprised of X RAIDZ-2 vdevs ( 7 + 2 ) > > with one hotspare per 10 drives and just continue > to expand that pool as needed. > > > > Between calculating the MTTDL and performance > models i was hit by a rather scary thought. > > > > A pool comprised of X vdevs is no more resilient to > data loss than the weakest vdev since loss > > of a vdev would render the entire pool unusable. > > > > This means that i potentially could loose 40TB+ of > data if three disks within the same RAIDZ-2 > > vdev should die before the resilvering of at least > one disk is complete. Since most disks > > will be filled i do expect rather long resilvering > times. > > Why are you planning on using RAIDZ-2 rather than > mirroring ?
Mirroring would increase the cost significantly and is not within the budget of this project. > -- > Darren J Moffat > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discu > ss This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
