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Alexander Motin
002bc3da6a
According to my observations, BRT ZAPs are typically compressible 3:1 for data and 2:1 for indirects. With ashift=12, typical these days, it means increasing the block sizes to 8KB we may get most of possible compression, reducing on-disk and in-ARC BRT footprint in half by the cost of some compression/decompression overhead, but without real write inflation, only some dirty data increase. Increase to 32KB similar to DDT could further increase compression and storage efficiency, but at the cost of write inflation and much bigger dirty data increase, which we can not properly control now. So lets leave this for a time when BRT log gets implemented. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Alexander Motin <alexander.motin@TrueNAS.com> Closes #17916
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.