freebsd-nq/man
LOLi dddef7d600 More ashift improvements
This commit allow higher ashift values (up to 16) in 'zpool create'

The ashift value was previously limited to 13 (8K block) in b41c990
because the limited number of uberblocks we could fit in the
statically sized (128K) vdev label ring buffer could prevent the
ability the safely roll back a pool to recover it.

Since b02fe35 the largest uberblock size we support is 8K: this
allow us to store a minimum number of 16 uberblocks in the vdev
label, even with higher ashift values.

Additionally change 'ashift' pool property behaviour: if set it will
be used as the default hint value in subsequent vdev operations
('zpool add', 'attach' and 'replace'). A custom ashift value can still
be specified from the command line, if desired.

Finally, fix a bug in add-o_ashift.ksh caused by a missing variable.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #2024 
Closes #4205 
Closes #4740 
Closes #5763
2017-05-03 09:31:05 -07:00
..
man1 SIMD implementation of vdev_raidz generate and reconstruct routines 2016-06-21 09:27:26 -07:00
man5 Allow scaling of arc in proportion to pagecache 2017-05-02 15:50:49 -04:00
man8 More ashift improvements 2017-05-03 09:31:05 -07:00
Makefile.am Create mount.zfs, zinject, and zpios man pages. 2013-03-13 13:41:22 -07:00