Its possible to create pools that are perfectly valid but are perhaps not the "best" choice for a given set of devices. An example is a raidz1 of two devices. I have seen inexperienced users create this because it looks on the surface like a traditional RAID-1, that is, a mirror. It even appears to work, but presents problems later when they want to upgrade the drives, and of course does not perform as well as a mirror. This changes `zpool create` to reject such "suboptimal" pool layouts, and suggest a possible better alternative. It checks for raidz and draid where the number of devices are parity+1, and could be extended in the future. It adds a switch, --force=layout, to disable the check and the warning and return the old behaviour, for those who know what they're doing. Included is a utility function to work with option flags. The existing -f switch to `zpool create` is now an alias for `--force=vdevs`. Signed-off-by: Rob Norris <robn@despairlabs.com> |
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lib | ||
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tests | ||
udev | ||
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CODE_OF_CONDUCT.md | ||
COPYRIGHT | ||
LICENSE | ||
META | ||
Makefile.am | ||
NEWS | ||
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README.md | ||
RELEASES.md | ||
TEST | ||
autogen.sh | ||
configure.ac | ||
copy-builtin | ||
zfs.release.in |
README.md
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
META
file contains the officially recognized supported Linux kernel versions. - Supported FreeBSD versions are any supported branches and releases starting from 12.2-RELEASE.