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On the first vdev open ignore impossible ashift hints

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If on the first open device's logical ashift is bigger than set
by pool's ashift property, ignore the last as unusable instead of
creating vdev that will fail most of I/Os due to misalignment.

Reviewed-by: Rob Norris <robn@despairlabs.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ameer Hamza <ahamza@ixsystems.com>
Signed-off-by:  Alexander Motin <mav@FreeBSD.org>
Sponsored by:   iXsystems, Inc.
Closes #16690
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Alexander Motin 2024-10-29 15:23:24 -04:00 committed by GitHub
parent 2bf1520211
commit 6187b19434
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1 changed files with 3 additions and 2 deletions
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5
module/zfs/vdev.c
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@ -2205,10 +2205,11 @@ vdev_open(vdev_t *vd)
vd->vdev_max_asize = max_asize;
/*
* If the vdev_ashift was not overridden at creation time,
* If the vdev_ashift was not overridden at creation time
* (0) or the override value is impossible for the device,
* then set it the logical ashift and optimize the ashift.
*/
if (vd->vdev_ashift == 0) {
if (vd->vdev_ashift < vd->vdev_logical_ashift) {
vd->vdev_ashift = vd->vdev_logical_ashift;
if (vd->vdev_logical_ashift > ASHIFT_MAX) {