mirror_zfs/man
Alexander Motin fa7b2390d4
Do not report bytes skipped by scan as issued.
Scan process may skip blocks based on their birth time, DVA, etc.
Traditionally those blocks were accounted as issued, that caused
reporting of hugely over-inflated numbers, having nothing to do
with actual disk I/O.  This change utilizes never used field in
struct dsl_scan_phys to account such skipped bytes, allowing to
report how much data were actually scrubbed/resilvered and what
is the actual I/O speed.  While formally it is an on-disk format
change, it should be compatible both ways, so should not need a
feature flag.

This should partially address the same issue as c85ac731a0, but
from a different perspective, complementing it.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Akash B <akash-b@hpe.com>
Signed-off-by:  Alexander Motin <mav@FreeBSD.org>
Sponsored by:   iXsystems, Inc.
Closes #15007
2023-06-30 08:47:13 -07:00
..
man1 Allow zhack label repair to restore detached devices. 2023-05-03 09:03:57 -07:00
man4 Another set of vdev queue optimizations. 2023-06-27 09:09:48 -07:00
man5 Consistentify miscellaneous style on remaining manpages 2021-06-09 14:35:53 -07:00
man7 Adding new read-only compatible zpool features to compatibility.d/grub2 2023-05-26 10:04:19 -07:00
man8 Do not report bytes skipped by scan as issued. 2023-06-30 08:47:13 -07:00
Makefile.am Add vdevprops.7 to the Makefile 2023-02-27 16:38:09 -08:00