diff options
author | NeilBrown <neilb@suse.de> | 2009-11-17 13:15:32 +1100 |
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committer | NeilBrown <neilb@suse.de> | 2009-11-17 13:15:32 +1100 |
commit | 7d5c3964ccfaace123f7b75e15d38c2650e013d8 (patch) | |
tree | 7103dfe3f49a51131e59233449ffdfd731e0179b /mdadm.8 | |
parent | 5f175898dedb2bb2635d4d1dcb2afa8c420d5eae (diff) | |
download | mdadm-7d5c3964ccfaace123f7b75e15d38c2650e013d8.tar.gz |
Change default metadata from 0.90 to 1.1
1.1 is more flexible in a number of ways and is safer.
0.90 is still fully supported.
1.0 should possibly be used for RAID1 arrays that you
want to boot off, depending on your boot loader.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'mdadm.8')
-rw-r--r-- | mdadm.8 | 9 |
1 files changed, 5 insertions, 4 deletions
@@ -311,7 +311,7 @@ says to get a list of array devices from .TP .BR \-e ", " \-\-metadata= Declare the style of RAID metadata (superblock) to be used. The -default is 0.90 for +default is 1.1 for .BR \-\-create , and to guess for other operations. The default can be overridden by setting the @@ -323,15 +323,16 @@ keyword in Options are: .RS -.IP "0, 0.90, default" +.IP "0, 0.90" Use the original 0.90 format superblock. This format limits arrays to 28 component devices and limits component devices of levels 1 and greater to 2 terabytes. -.IP "1, 1.0, 1.1, 1.2" +.IP "1, 1.0, 1.1, 1.2 default" Use the new version-1 format superblock. This has few restrictions. The different sub-versions store the superblock at different locations on the device, either at the end (for 1.0), at the start (for 1.1) or -4K from the start (for 1.2). +4K from the start (for 1.2). '1' is equivalent to '1.0', 'default' is +equivalent to '1.1'. .IP ddf Use the "Industry Standard" DDF (Disk Data Format) format defined by SNIA. |