On 26 January 2011 09:21, Christer Solskogen <christer.solsko...@gmail.com> wrote: > On Wed, Jan 26, 2011 at 9:42 AM, O. Hartmann > <ohart...@mail.zedat.fu-berlin.de> wrote: > >> My question is: is it possible to migrate the two-disk pool without data >> loss into a mirrored pool by adding the one 2TB-disk? >> > > No, you cant create a two-way mirror of three disks with ZFS. The only > way of doing what you want by creating a gmirror (or by hardware raid) > of the two 1TB disks. > > -- > chs, > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org" >
ive not tried it but wouldn't you want to gstripe the two disks together and then add the geom device to the pool? It sounds a bit horrible to me and with the price of 2TB disks being ~ £65-70 here in the uk I wouldn't bother. Remember you will get a speed boost for reads on a mirror. WIth regards to the backup, the most efficient way would probably to use zfs send and receive between the pools _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"