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Brian Behlendorf 7d2868d5fc Skip bad DVAs during free by setting zfs_recover=1 
When a bad DVA is encountered in metaslab_free_dva() the system
should treat it as fatal.  This indicates that somehow a damaged
DVA was written to disk and that should be impossible.

However, we have seen a handful of reports over the years of pools
somehow being damaged in this way.  Since this damage can render
otherwise intact pools unimportable, and the consequence of skipping
the bad DVA is only leaked free space, it makes sense to provide
a mechanism to ignore the bad DVA.  Setting the zfs_recover=1 module
option will cause the DVA to be ignored which may allow the pool to
be imported.

Since zfs_recover=0 by default any pool attempting to free a bad DVA
will treat it as a fatal error preserving the current behavior.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3099
Issue #3090
Issue #2720
2015-02-13 16:02:04 -08:00
cmd Enhancements to zpool dry run mode. 2015-02-11 14:05:17 -08:00
config Linux 3.19 compat: file_inode was added 2015-02-10 11:24:51 -08:00
contrib Add bash completions by Aneurin Price. 2014-08-06 15:03:28 -07:00
dracut Write directly to $initdir 2015-02-13 15:58:53 -08:00
etc Improve systemd script to not leave stale sharetab 2014-12-18 09:54:56 -08:00
include Linux 3.19 compat: file_inode was added 2015-02-10 11:24:51 -08:00
lib Change VERIFY to ASSERT in mutex_destroy() 2015-02-11 13:58:40 -08:00
man Retire zio_bulk_flags 2015-02-10 16:08:49 -08:00
module Skip bad DVAs during free by setting zfs_recover=1 2015-02-13 16:02:04 -08:00
rpm Fix typo in %post scriptlet lines 2014-12-18 18:38:33 -08:00
scripts Retire zio_bulk_flags 2015-02-10 16:08:49 -08:00
udev Open pools asynchronously after module load 2013-07-03 09:24:38 -07:00
.gitignore Ignore *.{deb,rpm,tar.gz} files in the top directory. 2013-04-24 16:18:59 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
AUTHORS Add a missing > to AUTHORS 2014-09-02 14:18:53 -07:00
autogen.sh build: do not call boilerplate ourself 2013-04-02 10:55:20 -07:00
configure.ac Add a pkgconfig file 2014-08-28 07:59:43 -07:00
copy-builtin Consistent menuconfig name 2012-08-26 13:49:37 -07:00
COPYRIGHT Refresh links to web site 2013-03-06 15:46:41 -08:00
DISCLAIMER Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
Makefile.am Kernel header installation should respect --prefix 2014-10-28 09:37:06 -07:00
META Make license compatibility checks consistent 2014-10-17 14:58:38 -07:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
README.markdown Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
zfs-script-config.sh.in Initial implementation of zed (ZFS Event Daemon) 2014-04-02 13:10:03 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.markdown

Native ZFS for Linux!

ZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the Illumos community.

ZFS on Linux, which is also known as ZoL, is currently feature complete. It includes fully functional and stable SPA, DMU, ZVOL, and ZPL layers.

Full documentation for installing ZoL on your favorite Linux distribution can be found at: http://zfsonlinux.org