summaryrefslogtreecommitdiffstats
path: root/mdadm.8
diff options
context:
space:
mode:
Diffstat (limited to 'mdadm.8')
-rw-r--r--mdadm.87
1 files changed, 5 insertions, 2 deletions
diff --git a/mdadm.8 b/mdadm.8
index 121fc29..2df353c 100644
--- a/mdadm.8
+++ b/mdadm.8
@@ -440,7 +440,9 @@ before the number of devices in the array is reduced.
.TP
.BR \-c ", " \-\-chunk=
-Specify chunk size of kibibytes. The default is 64.
+Specify chunk size of kibibytes. The default when creating an
+array is 512KB. To ensure compatibility with earlier versions, the
+default when Building and array with no persistent metadata is 64KB.
This is only meaningful for RAID0, RAID4, RAID5, RAID6, and RAID10.
.TP
@@ -450,7 +452,8 @@ component will be rounded down to a multiple of this size.
This is a synonym for
.B \-\-chunk
but highlights the different meaning for Linear as compared to other
-RAID levels.
+RAID levels. The default is 64K if a kernel earlier than 2.6.16 is in
+use, and is 0K (i.e. no rounding) in later kernels.
.TP
.BR \-l ", " \-\-level=