mirror_zfs/cmd/zpool
Brian Behlendorf c85ac731a0
Improve resilver ETAs
When resilvering the estimated time remaining is calculated using
the average issue rate over the current pass.  Where the current
pass starts when a scan was started, or restarted, if the pool
was exported/imported.

For dRAID pools in particular this can result in wildly optimistic
estimates since the issue rate will be very high while scanning
when non-degraded regions of the pool are scanned.  Once repair
I/O starts being issued performance drops to a realistic number
but the estimated performance is still significantly skewed.

To address this we redefine a pass such that it starts after a
scanning phase completes so the issue rate is more reflective of
recent performance.  Additionally, the zfs_scan_report_txgs
module option can be set to reset the pass statistics more often.

Reviewed-by: Akash B <akash-b@hpe.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #14410
2023-01-25 11:28:54 -08:00
..
compatibility.d Add compatibility file sets (ZoL 0.6.1, 0.6.4, OpenZFS 2.1) 2021-03-31 09:40:25 -07:00
os Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool.d Workaround broken VDEV_UPATH 2022-05-10 10:14:07 -07:00
Makefile.am Replace EXTRA_DIST with dist_noinst_DATA 2022-05-26 09:24:50 -07:00
zpool_iter.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool_main.c Improve resilver ETAs 2023-01-25 11:28:54 -08:00
zpool_util.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool_util.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool_vdev.c zpool: fix redundancy check after vdev removal 2022-08-04 17:02:57 -07:00