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Andrew Barnes 61e99a73bc Preserve asize when last mirror child promoted to top-level vdev 
If the smaller of 2 different sized child vdev's of a mirrored vdev is
detached, and the pool has the autoexpand property set to off, as the
remaining larger vdev is promoted to a top level vdev it fails to retain
the asize of the original top level mirror vdev and therefore partially
autoexpands.

This partially autoexpanded state leaves the new vdev too large to
re-mirror by adding the smaller vdev back in, and the pool fails to
utilize the space until next imported.

If the autoexpand property is set to on, the child vdev grows
in size after it has been promoted to a top level vdev as expected.

This commit causes the remaining child mirror to retain the asize of its
old parent mirror vdev if the autoexpand property is set to off,
this allows the smaller vdev to be re-added if required the vdev
can then be told to expand if required by the usual using zpool online -e.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Andrew Barnes <barnes333@gmail.com>
Signed-off-by: George Wilson <george.wilson@delphix.com>
Closes #1208
2014-07-02 14:04:29 -07:00
cmd Add information about the -o option to zpool replace 2014-06-27 08:31:07 -07:00
config Accept udev and dracut paths specified by ./configure 2014-06-11 16:32:57 -07:00
dracut Refresh dracut module setup 2013-03-21 12:51:06 -07:00
etc Do not export pool to prevent cache from been removed 2014-06-05 13:49:15 -07:00
include Allow building without ACLs 2014-05-30 12:01:57 -07:00
lib Fix comment spelling errors. 2014-07-01 14:20:23 -07:00
man Document the optional "device" argument for "zpool split" 2014-07-01 14:16:43 -07:00
module Preserve asize when last mirror child promoted to top-level vdev 2014-07-02 14:04:29 -07:00
patches Adding grub2 mkconfig support patch 2012-07-30 16:17:23 -07:00
rpm Tag zfs-0.6.3 2014-06-12 13:34:38 -07:00
scripts Set LANG to a reasonable default (C) 2014-06-10 16:46:21 -07:00
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 Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
autogen.sh build: do not call boilerplate ourself 2013-04-02 10:55:20 -07:00
configure.ac Initial implementation of zed (ZFS Event Daemon) 2014-04-02 13:10:03 -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 cstyle: Exclude several files from 'make checkstyle' 2013-12-18 16:46:35 -08:00
META Tag zfs-0.6.3 2014-06-12 13:34:38 -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