1 files changed, 3 insertions, 0 deletions
diff --git a/mdadm.8 b/mdadm.8
index 3e1c64a..1a34690 100644
--- a/mdadm.8
+++ b/mdadm.8
@@ -344,6 +344,9 @@ for RAID level 1/4/5/6. If the array was created with a size smaller
 than the currently active drives, the extra space can be accessed
 using
 .BR --grow .
+The size can be given as
+.B max
+which means to choose the largest size that fits all on all current drives.
 
 .TP
 .BR --assume-clean