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| author | mm <mm@FreeBSD.org> | 2012-06-11 11:35:22 +0000 |
|---|---|---|
| committer | mm <mm@FreeBSD.org> | 2012-06-11 11:35:22 +0000 |
| commit | cc61ab2f133566dca51970d44cc49a4355039b5d (patch) | |
| tree | a0efb9ad759cc8c8f8ec6f2cbabe6b3305a334e9 /UPDATING | |
| parent | 2cecdd81d885af2868172221b5068c523eade78c (diff) | |
| download | FreeBSD-src-cc61ab2f133566dca51970d44cc49a4355039b5d.zip FreeBSD-src-cc61ab2f133566dca51970d44cc49a4355039b5d.tar.gz | |
Introduce "feature flags" for ZFS pools (bump SPA version to 5000).
Add first feature "com.delphix:async_destroy" (asynchronous destroy
of ZFS datasets).
Implement features support in ZFS boot code.
Illumos revisions merged:
13700:2889e2596bd6
13701:1949b688d5fb
2619 asynchronous destruction of ZFS file systems
2747 SPA versioning with zfs feature flags
References:
https://www.illumos.org/issues/2619
https://www.illumos.org/issues/2747
Obtained from: illumos (issue #2619, #2747)
MFC after: 1 month
Diffstat (limited to 'UPDATING')
| -rw-r--r-- | UPDATING | 11 |
1 files changed, 11 insertions, 0 deletions
@@ -24,6 +24,17 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 10.x IS SLOW: disable the most expensive debugging functionality run "ln -s 'abort:false,junk:false' /etc/malloc.conf".) +20120611: + A new version of ZFS (pool version 5000) has been merged to -HEAD. + Starting with this version the old system of ZFS pool versioning + is superseded by "feature flags". This concept enables forward + compatibility against certain future changes in functionality of ZFS + pools. The first read-only compatible "feature flag" for ZFS pools + is named "com.delphix:async_destroy". For more information + read the new zpool-features(5) manual page. + Please refer to the "ZFS notes" section of this file for information + on upgrading boot ZFS pools. + 20120417: The malloc(3) implementation embedded in libc now uses sources imported as contrib/jemalloc. The most disruptive API change is to |
