At Wed, 20 Jun 2018 23:34:48 -0400,
Allan Jude wrote:
>
> On 2018-06-20 21:36, KIRIYAMA Kazuhiko wrote:
> > Hi all,
> >
> > I've been reported ZFS boot disable problem [1], and found
> > that this issue occers form RAID configuration [2]. So I
> > rebuit with RAID5 and re-installed 12.0-CURRENT
> > (r333982). But failed to boot with:
> >
> > ZFS: i/o error - all block copies unavailable
> > ZFS: can't read MOS of pool zroot
> > gptzfsboot: failed to mount default pool zroot
> >
> > FreeBSD/x86 boot
> > ZFS: I/O error - blocks larger than 16777216 are not supported
> > ZFS: can't find dataset u
> > Default: zroot/<0x0>:
> >
> > In this case, the reason is "blocks larger than 16777216 are
> > not supported" and I guess this means datasets that have
> > recordsize greater than 8GB is NOT supported by the
> > FreeBSD boot loader(zpool-features(7)). Is that true ?
> >
> > My zpool featues are as follows:
> >
> > # kldload zfs
> > # zpool import
> > pool: zroot
> > id: 13407092850382881815
> > state: ONLINE
> > status: The pool was last accessed by another system.
> > action: The pool can be imported using its name or numeric identifier and
> > the '-f' flag.
> > see: http://illumos.org/msg/ZFS-8000-EY
> > config:
> >
> > zroot ONLINE
> > mfid0p3 ONLINE
> > # zpool import -fR /mnt zroot
> > # zpool list
> > NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
> > zroot 19.9T 129G 19.7T - 0% 0% 1.00x ONLINE /mnt
> > # zpool get all zroot
> > NAME PROPERTY VALUE
> > SOURCE
> > zroot size 19.9T
> > -
> > zroot capacity 0%
> > -
> > zroot altroot /mnt
> > local
> > zroot health ONLINE
> > -
> > zroot guid 13407092850382881815
> > default
> > zroot version -
> > default
> > zroot bootfs zroot/ROOT/default
> > local
> > zroot delegation on
> > default
> > zroot autoreplace off
> > default
> > zroot cachefile none
> > local
> > zroot failmode wait
> > default
> > zroot listsnapshots off
> > default
> > zroot autoexpand off
> > default
> > zroot dedupditto 0
> > default
> > zroot dedupratio 1.00x
> > -
> > zroot free 19.7T
> > -
> > zroot allocated 129G
> > -
> > zroot readonly off
> > -
> > zroot comment -
> > default
> > zroot expandsize -
> > -
> > zroot freeing 0
> > default
> > zroot fragmentation 0%
> > -
> > zroot leaked 0
> > default
> > zroot feature@async_destroy enabled
> > local
> > zroot feature@empty_bpobj active
> > local
> > zroot feature@lz4_compress active
> > local
> > zroot feature@multi_vdev_crash_dump enabled
> > local
> > zroot feature@spacemap_histogram active
> > local
> > zroot feature@enabled_txg active
> > local
> > zroot feature@hole_birth active
> > local
> > zroot feature@extensible_dataset enabled
> > local
> > zroot feature@embedded_data active
> > local
> > zroot feature@bookmarks enabled
> > local
> > zroot feature@filesystem_limits enabled
> > local
> > zroot feature@large_blocks enabled
> > local
> > zroot feature@sha512 enabled
> > local
> > zroot feature@skein enabled
> > local
> > zroot unsupported@com.delphix:device_removal inactive
> > local
> > zroot unsupported@com.delphix:obsolete_counts inactive
> > local
> > zroot unsupported@com.delphix:zpool_checkpoint inactive
> > local
> > #
> >
> > Regards
> >
> > [1]
> > https://lists.freebsd.org/pipermail/freebsd-current/2018-March/068886.html
> > [2] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=151910
> >
> > ---
> > KIRIYAMA Kazuhiko
> > _______________________________________________
> > freebsd-current@freebsd.org mailing list
> > https://lists.freebsd.org/mailman/listinfo/freebsd-current
> > To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
> >
>
> I am guessing it means something is corrupt, as 16MB is the maximum size
> of a record in ZFS. Also, the 'large_blocks' feature is 'enabled', not
> 'active', so this suggest you do not have any records larger than 128kb
> on your pool.
As I mentioned above, [2] says ZFS on RAID disks have any
serious bugs except for mirror. Anyway I gave up to use ZFS
on RAID{5,6}* until Bug 151910 [2] fixed.
>
> --
> Allan Jude
>
---
KIRIYAMA Kazuhiko
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