Quite a common sense for any RAID-like multi-device setup, just in case. Signed-off-by: Qu Wenruo <quwenruo@xxxxxxxxxxxxxx> --- Documentation/mkfs.btrfs.asciidoc | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/mkfs.btrfs.asciidoc b/Documentation/mkfs.btrfs.asciidoc index 846c08f..c291714 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 note3)^ |============================================================= +WARNING: It's not recommended to build btrfs with RAID0/1/10/5/6 prfiles on +partitions from the same disk. +Neither redundancy nor performance will be improved. + 'Note1:' 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. -- 2.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
