diff options
| author | David Sterba <dsterba@suse.com> | 2016-05-02 10:26:29 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-05-02 14:44:56 +0200 |
| commit | c54b5a545efd2c7076e1fa8863b3ec4f00cdb216 (patch) | |
| tree | cca99c332cc94f581eec945d6f4b4d1ef51180bd /Documentation/btrfs-balance.asciidoc | |
| parent | aeda5acb4f25d89e5bf60bf728b82b9f583c9833 (diff) | |
btrfs-progs: add safety delay before starting full balance
A short delay with a warning before starting a full balance should
improve usability. We have been getting reports from people who run full
balance after following some random advice and then get surprised by the
performance impact.
The countdown is done even when run from scripts, but as the whole
balance takes significanly more time, this shouldn't be an issue.
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'Documentation/btrfs-balance.asciidoc')
| -rw-r--r-- | Documentation/btrfs-balance.asciidoc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/btrfs-balance.asciidoc b/Documentation/btrfs-balance.asciidoc index 8b5df96a..7df40b9c 100644 --- a/Documentation/btrfs-balance.asciidoc +++ b/Documentation/btrfs-balance.asciidoc @@ -67,6 +67,12 @@ resume interrupted balance start the balance operation according to the specified filters, no filters will rewrite the entire filesystem. The process runs in the foreground. + +NOTE: the balance command without filters will basically rewrite everything +in the filesystem. The run time is potentially very long, depending on the +filesystem size. To prevent starting a full balance by accident, the user is +warned and has a few seconds to cancel the operation before it starts. The +warning and delay can be skipped with '--full-balance' option. ++ `Options` + -d[<filters>]:::: |