On Tue, May 31, 2016 at 11:18 AM, Eugene M. Zheganin <e...@norma.perm.ru> wrote:
> I wat to start using HAST, I have two nodes and a pair of disk on each > node. So I want to use HASt in an environment where each HAST resource > would be mirrored. What is the preferred approach if I want to use ZFS on > an end-device to avoid exsessive fscking, and, in the same time, I want to > have some redundancy on a block level ? I see two possibility: HAST on a > zvol of a mirrored pool, and a ZFS on a hast. But recently I heard that > nested zfs (like zfs on zvol) is clamed unsupported. Futhermore, I have zfs > on a geli on a zvol, and this solution proved itself to be very affected to > livelocking - when disk i/o on a such fs is above some treshold, system is > locking, and the only way out is to reset it. Should I chose geom_mirror to > provide a device for HAST and the build ZFS on it ? > The generally recommend way to do this is to create a HAST resource out of 1 disk from each system, and then build the ZFS pool using the HAST resources as the "disks". That way, your ZFS pool is made up of 2 HAST devices in a mirror vdev. And each of the two HAST devices uses one disk from each server (total of four disks). -- Freddie Cash fjwc...@gmail.com _______________________________________________ freebsd-stable@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
