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2041d6eecd
Previously, ZFS scaled maxinflight_bytes based on total number of disks in the pool. A 3-wide mirror was receiving a queue depth of 3 disks, which it should not, since it reads from all the disks inside. For wide raidz the situation was slightly better, but still a 3-wide raidz1 received a depth of 3 disks instead of 2. The new code counts only unique data disks, i.e. 1 disk for mirrors and non-parity disks for raidz/draid. For draid the math is still imperfect, since vdev_get_nparity() returns number of parity disks per group, not per vdev, but still some better than it was. This should slightly reduce scrub influence on payload for some pool topologies by avoiding excessive queuing. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Signed-off-by: Alexander Motin <mav@FreeBSD.org> Sponsored-By: iXsystems, Inc. Closing #12046 |
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OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.
Official Resources
- Documentation - for using and developing this repo
- ZoL Site - Linux release info & links
- Mailing lists
- OpenZFS site - for conference videos and info on other platforms (illumos, OSX, Windows, etc)
Installation
Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.
Contribute & Develop
We have a separate document with contribution guidelines.
We have a Code of Conduct.
Release
OpenZFS is released under a CDDL license.
For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197
Supported Kernels
- The
METAfile contains the officially recognized supported Linux kernel versions. - Supported FreeBSD versions are any supported branches and releases starting from 12.2-RELEASE.