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| author | Qu Wenruo <quwenruo@cn.fujitsu.com> | 2016-09-06 17:35:33 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-09-21 11:47:35 +0200 |
| commit | f04db96f617cf02d4020c4befe7558d1e3cc22c4 (patch) | |
| tree | 051139b35d4686bee0d3d0b514b66f66a98a0925 /Documentation/mkfs.btrfs.asciidoc | |
| parent | 53c4e289c237e4f1008fdec54256e81c24c8882a (diff) | |
btrfs-progs: docs: Add warning for build RAID btrfs on partions from the same device
Quite a common sense for any RAID-like multi-device setup, just in case.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'Documentation/mkfs.btrfs.asciidoc')
| -rw-r--r-- | Documentation/mkfs.btrfs.asciidoc | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/mkfs.btrfs.asciidoc b/Documentation/mkfs.btrfs.asciidoc index 7d19a146..6515e145 100644 --- a/Documentation/mkfs.btrfs.asciidoc +++ b/Documentation/mkfs.btrfs.asciidoc @@ -271,6 +271,10 @@ There are the following block group types available: | RAID6 | 1 | 2 | 3 to N - 2 | 3/any ^(see note 3)^ |============================================================= +WARNING: It's not recommended to build btrfs with RAID0/1/10/5/6 prfiles on +partitions from the same device. Neither redundancy nor performance will be +improved. + 'Note 1:' DUP may exist on more than 1 device if it starts on a single device and another one is added. Since version 4.5.1, *mkfs.btrfs* will let you create DUP on multiple devices. |