HAST + ZFS causes system to shutdown uncleanly?

[Freddie Cash]

On Thu, Mar 17, 2011 at 12:32 PM, Thomas Johnson <tom at claimlynx.com> wrote:
> Has anyone else noticed issues halting a system that is configured with a
> ZFS filesystem on a HAST device? I am using HAST to replicate a ZFS
> filesystem between two ESXi virtual machines (trying to emulate our
> production systems in a test environment) and I've noticed that the system
> doesn't seem to shutdown completely in this arrangement (hangs after ""
> message). I did some poking around and learned that if I unmount my zfs
> filesystems before shutdown, the shutdown finishes cleanly. Muddling my way
> through the rc scripts, it looks like hastd is killed fairly early on in the
> shutdown sequence. Presumably this is preventing the system from
> syncing/unmounting the ZFS mounts, causing the shutdown to hang.
>
> Does this seem plausible? If so, any ideas on fix, besides making sure I
> 'zfs unmount -a' before shutdown?

Does it work if you manually add "hastd" to the REQUIRE: line in /etc/rc.d/zfs?

Of course, that only works if you are starting zfs automatically via
/etc/rc.conf, and not letting CARP/devd or something else manage the
pool import process.

-- 
Freddie Cash
fjwcash at gmail.com