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Alexander Motin
6a2f7b3844
Since we are calculating a free space fragmentation, we should weight metaslabs by the amount of their free space, not a full size. Fragmentation of full metaslabs may not matter in presence empty ones. The old algorithm did not differentiate metaslabs having only one free 4KB block from metaslabs having 50% of space free in 4KB blocks, reporting higher fragmentation. While there, move metaslab_group_alloc_update() call after setting mg_fragmentation, otherwise the effect may be delayed by one TXG. Signed-off-by: Alexander Motin <mav@FreeBSD.org> Sponsored by: iXsystems, Inc. Reviewed-by: Paul Dagnelie <pcd@delphix.com> Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com> Reviewed-by: Tony Hutter <hutter2@llnl.gov>
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 13.0-RELEASE.