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In order to reduce contention on the vq_lock, optional skip sectors for Raidz writes can be placed into a single IO request. This is done by padding out the linear ABD for a parity column to contain the skip sector and by creating gang ABD to contain the data and skip sector for data columns. The vdev_raidz_map_alloc() function now contains specific functions for both reads and write to allocate the ABD's that will be issued down to the VDEV chldren. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Reviewed-By: Mark Maybee <mark.maybee@delphix.com> Signed-off-by: Brian Atkinson <batkinson@lanl.gov> Closes #12333 |
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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.