zfs/man
Brian Behlendorf 61f3638a34 Add prefetch property
ZFS prefetch is currently governed by the zfs_prefetch_disable
tunable. However, this is a module-wide settings - if a specific
dataset benefits from prefetch, while others have issue with it,
an optimal solution does not exists.

This commit introduce the "prefetch" tri-state property, which enable
granular control (at dataset/volume level) for prefetching.

This patch does not remove the zfs_prefetch_disable, which remains
a system-wide switch for enable/disable prefetch. However, to avoid
duplication, it would be preferable to deprecate and then remove
the module tunable.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Ameer Hamza <ahamza@ixsystems.com>
Signed-off-by: Gionatan Danti <g.danti@assyoma.it>
Co-authored-by: Gionatan Danti <g.danti@assyoma.it>
Closes #15237 
Closes #15436
2024-04-30 10:01:15 -07:00
..
man1 Allow zhack label repair to restore detached devices. 2023-05-03 09:03:57 -07:00
man4 Speculative prefetch for reordered requests 2024-04-19 10:13:38 -07:00
man5 Consistentify miscellaneous style on remaining manpages 2021-06-09 14:35:53 -07:00
man7 Add prefetch property 2024-04-30 10:01:15 -07:00
man8 vdev probe to slow disk can stall mmp write checker 2024-04-30 10:01:15 -07:00
Makefile.am man: move zfs_prepare_disk.8 to nodist_man_MANS 2024-04-22 09:28:06 -07:00