zfs/cmd/zpool
George Wilson 32a9872bba Illumos #2671: zpool import should not fail if vdev ashift has increased
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Eric Schrock <eric.schrock@delphix.com>
Reviewed by: Richard Elling <richard.elling@richardelling.com>
Reviewed by: Gordon Ross <gwr@nexenta.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Richard Lowe <richlowe@richlowe.net>

Refererces to Illumos issue:
      https://www.illumos.org/issues/2671

This patch has been slightly modified from the upstream Illumos
version.  In the upstream implementation a warning message is
logged to the console.  To prevent pointless console noise this
notification is now posted as a "ereport.fs.zfs.vdev.bad_ashift"
event.

The event indicates a non-optimial (but entirely safe) ashift
value was used to create the pool.  Depending on your workload
this may impact pool performance.  Unfortunately, the only way
to correct the issue is to recreate the pool with a new ashift.

NOTE: The unrelated fix to the comment in zpool_main.c appears
in the upstream commit and was preserved for consistnecy.

Ported-by: Cyril Plisko <cyril.plisko@mountall.com>
Reworked-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #955
2012-11-15 11:05:59 -08:00
..
.gitignore Add .gitignore files to exclude build products 2010-01-08 11:35:17 -08:00
Makefile.am Combine libraries: spl, avl, efi, share, unicode. 2012-01-17 15:19:50 -08:00
zpool_iter.c Fix gcc missing parenthesis warnings 2010-08-31 08:38:35 -07:00
zpool_main.c Illumos #2671: zpool import should not fail if vdev ashift has increased 2012-11-15 11:05:59 -08:00
zpool_util.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
zpool_util.h Add "ashift" property to zpool create 2011-06-17 16:35:49 -07:00
zpool_vdev.c Allow 'zpool replace' to use short device names 2012-10-22 08:45:58 -07:00