freebsd-dev/man
DHE 06226b5936 Increase zfs_vdev_async_write_min_active to 2
Resilver operations frequently cause only a small amount of dirty data
to be written to disk at a time, resulting in the IO scheduler to only
issue 1 write at a time to the resilvering disk. When it is rotational
media the drive will often travel past the next sector to be written
before receiving a write command from ZFS, significantly delaying the
write of the next sector.

Raise zfs_vdev_async_write_min_active so that drives are kept fed
during resilvering.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: DHE <git@dehacked.net>
Issue #4825
Closes #5926
2017-04-14 14:03:44 -07:00
..
man1 SIMD implementation of vdev_raidz generate and reconstruct routines 2016-06-21 09:27:26 -07:00
man5 Increase zfs_vdev_async_write_min_active to 2 2017-04-14 14:03:44 -07:00
man8 OpenZFS 6410 - teach zdb to perform object lookups by path 2017-04-13 09:40:56 -07:00
Makefile.am Create mount.zfs, zinject, and zpios man pages. 2013-03-13 13:41:22 -07:00