diff options
| author | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-10-21 23:57:10 -0400 |
|---|---|---|
| committer | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-10-21 23:57:10 -0400 |
| commit | 6e9f1d49f977e234752a64b7f6844cbda0cb86f1 (patch) | |
| tree | 60d3aa5b5fe83079d02ebbf7b15a8f905fd93a21 /src/grp-journal/journal-nocow.tmpfiles | |
| parent | 3f1441073d64408c1f937be226369ab6b4072b39 (diff) | |
./tools/notsd-move
Diffstat (limited to 'src/grp-journal/journal-nocow.tmpfiles')
| -rw-r--r-- | src/grp-journal/journal-nocow.tmpfiles | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/grp-journal/journal-nocow.tmpfiles b/src/grp-journal/journal-nocow.tmpfiles new file mode 100644 index 0000000000..e7938c8911 --- /dev/null +++ b/src/grp-journal/journal-nocow.tmpfiles @@ -0,0 +1,27 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +# See tmpfiles.d(5) for details + +# Set the NOCOW attribute for directories of journal files. This flag +# is inheredited by their new files and sub-directories. Matters only +# for btrfs filesystems. +# +# WARNING: Enabling the NOCOW attribute improves journal performance +# substantially, but also disables the btrfs checksum logic. In +# btrfs RAID filesystems the checksums are needed for rebuilding +# corrupted files. Without checksums such rebuilds are not +# possible. +# +# In a single-disk filesystem (or a filesystem without redundancy) +# enabling the NOCOW attribute for journal files is safe, because +# they have their own checksums and a rebuilding wouldn't be possible +# in any case. + +h /var/log/journal - - - - +C +h /var/log/journal/%m - - - - +C +h /var/log/journal/remote - - - - +C |