mirror_zfs/cmd
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
..
raidz_test Fix multiplication converted to larger type 2022-10-28 09:30:37 -07:00
zdb Revert "zdb: zdb_ddt_leak_init() reads uninitialized memory..." 2022-12-21 09:17:00 -08:00
zed Configure zed's diagnosis engine with vdev properties 2023-01-23 13:14:25 -08:00
zfs Use setproctitle to report progress of zfs send 2023-01-17 10:17:35 -08:00
zinject Fix unsafe string operations 2022-09-27 16:47:24 -07:00
zpool Improve resilver ETAs 2023-01-25 11:28:54 -08:00
zpool_influxdb Fix unchecked return values 2022-09-29 09:02:57 -07:00
zstream Reject streams that set ->drr_payloadlen to unreasonably large values 2023-01-23 13:16:22 -08:00
arc_summary Update arc_summary and arcstat outputs 2023-01-05 09:29:13 -08:00
arcstat.in Update arc_summary and arcstat outputs 2023-01-05 09:29:13 -08:00
dbufstat.in Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
fsck.zfs.in cmd: move single-file binaries up, extract udev programs to udev/ 2022-05-10 10:20:34 -07:00
Makefile.am Add zilstat script to report zil kstats in a user friendly manner 2022-09-02 13:24:07 -07:00
mount_zfs.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_ids_to_path.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zgenhostid.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zhack.c Cleanup: zhack should not declare function prototypes in main() 2022-12-08 13:51:24 -08:00
zilstat.in Add zilstat script to report zil kstats in a user friendly manner 2022-09-02 13:24:07 -07:00
ztest.c ztest: update ztest_dmu_snapshot_create_destroy() 2023-01-10 13:27:48 -08:00
zvol_wait zvol_wait logic may terminate prematurely 2022-10-11 12:12:04 -07:00