On 15/06/2012 13:22, Sašo Kiselkov wrote: > On 06/15/2012 02:14 PM, Hans J Albertsson wrote: >> I've got my root pool on a mirror on 2 512 byte blocksize disks. I >> want to move the root pool to two 2 TB disks with 4k blocks. The >> server only has room for two disks. I do have an esata connector, >> though, and a suitable external cabinet for connecting one extra disk. >> >> How would I go about migrating/expanding the root pool to the >> larger disks so I can then use the larger disks for booting? >> I have no extra machine to use. > > Suppose we call the disks like so: > > A, B: your old 512-block drives > X, Y: your new 2TB drives > > The easiest way would be to simply: > > 1) zpool set autoexpand=on rpool > 2) offline the A drive > 3) physically replace it with the X drive > 4) do a "zpool replace" on it and wait for it to resilver
When sector size differs, attaching it is going to fail (at least on fbsd). You might not get around a send-receive cycle... > 5) offline the B drive > 6) physically replace it with the Y drive > 7) do a "zpool replace" on it and wait for it to resilver > > At this point, you should have a 2TB rpool (thanks to the > "autoexpand=on" in step 1). Unfortunately, to my knowledge, there is no > way to convert a bshift=9 pool (512 byte sectors) to a bshift=13 pool > (4k sectors). Perhaps some great ZFS guru can shed more light on this. > > -- > Saso > _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
