mirror_zfs/tests/zfs-tests/include
George Wilson 5899ea5a77 vdev_ashift should only be set once
== Motivation and Context

The new vdev ashift optimization prevents the removal of devices when
a zfs configuration is comprised of disks which have different logical
and physical block sizes. This is caused because we set 'spa_min_ashift'
in vdev_open and then later call 'vdev_ashift_optimize'. This would
result in an inconsistency between spa's ashift calculations and that
of the top-level vdev.

In addition, the optimization logical ignores the overridden ashift
value that would be provided by '-o ashift=<val>'.

== Description

This change reworks the vdev ashift optimization so that it's only
set the first time the device is configured. It still allows the
physical and logical ahsift values to be set every time the device
is opened but those values are only consulted on first open.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Cedric Berger <cedric@precidata.com>
Signed-off-by: George Wilson <gwilson@delphix.com>
External-Issue: DLPX-71831
Closes #10932
2020-09-18 12:40:20 -07:00
..
.gitignore Add zpool events tests 2017-05-22 12:34:42 -04:00
blkdev.shlib ZTS: Improve block_device_wait on FreeBSD 2020-08-24 08:50:15 -07:00
commands.cfg Avoid posting duplicate zpool events 2020-09-09 10:26:00 -07:00
default.cfg.in ZTS: Remove bashisms from zfs-tests.sh 2020-08-07 14:10:48 -07:00
libtest.shlib Remove dependency on sharetab file and refactor sharing logic 2020-07-13 09:19:18 -07:00
Makefile.am Centralize variable substitution 2020-07-14 17:33:44 -07:00
math.shlib ZTS: Make bc conditional use compatible with new BSD bc 2020-07-09 17:49:02 -07:00
properties.shlib Add zstd support to zfs 2020-08-20 10:30:06 -07:00
tunables.cfg vdev_ashift should only be set once 2020-09-18 12:40:20 -07:00
zpool_script.shlib zfs-tests: fix warnings when packaging some .shlib files 2019-05-24 14:12:14 -07:00