Colm 658fb8020f Add "compatibility" property for zpool feature sets ... Property to allow sets of features to be specified; for compatibility with specific versions / releases / external systems. Influences the behavior of 'zpool upgrade' and 'zpool create'. Initial man page changes and test cases included. Brief synopsis: zpool create -o compatibility=off|legacy|file[,file...] pool vdev... compatibility = off : disable compatibility mode (enable all features) compatibility = legacy : request that no features be enabled compatibility = file[,file...] : read features from specified files. Only features present in *all* files will be enabled on the resulting pool. Filenames may be absolute, or relative to /etc/zfs/compatibility.d or /usr/share/zfs/compatibility.d (/etc checked first). Only affects zpool create, zpool upgrade and zpool status. ABI changes in libzfs: * New function "zpool_load_compat" to load and parse compat sets. * Add "zpool_compat_status_t" typedef for compatibility parse status. * Add ZPOOL_PROP_COMPATIBILITY to the pool properties enum * Add ZPOOL_STATUS_COMPATIBILITY_ERR to the pool status enum An initial set of base compatibility sets are included in cmd/zpool/compatibility.d, and the Makefile for cmd/zpool is modified to install these in $pkgdatadir/compatibility.d and to create symbolic links to a reasonable set of aliases. Reviewed-by: ericloewe Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Richard Laager <rlaager@wiktel.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Colm Buckley <colm@tuatha.org> Closes #11468		2021-02-17 21:30:45 -08:00
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man1	Distributed Spare (dRAID) Feature	2020-11-13 13:51:51 -08:00
man5	Add "compatibility" property for zpool feature sets	2021-02-17 21:30:45 -08:00
man8	Add "compatibility" property for zpool feature sets	2021-02-17 21:30:45 -08:00
Makefile.am	Prepare SPL repo to merge with ZFS repo	2018-05-29 14:51:39 -07:00