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how to mount RAID partician
Post 302508518 by Corona688 on Monday 28th of March 2011 11:10:28 AM
03-28-2011
Quote:
I think this is a software RAID. You'll have to use the md* devices.
Quote:
# cat /proc/mdstat
Personalities : [raid1] [raid0]
md11 : active raid1 sdb2[0]
68091392 blocks [2/1] [U_]
md10 : active raid1 sdb3[0]
68091392 blocks [2/1] [U_]
md8 : active raid1 sdb5[0]
68091392 blocks [2/1] [U_]
md6 : active raid1 sdb6[0]
7341568 blocks [2/1] [U_]
...
... for all.
unused devices: <none>
Personalities : [raid1] [raid0]
md11 : active raid1 sdb2[0]
68091392 blocks [2/1] [U_]
md10 : active raid1 sdb3[0]
68091392 blocks [2/1] [U_]
md8 : active raid1 sdb5[0]
68091392 blocks [2/1] [U_]
md6 : active raid1 sdb6[0]
7341568 blocks [2/1] [U_]
...
... for all.
unused devices: <none>
You still can't use it all as one giant thing -- it never was one giant thing. But you should be able to mount these md1,md2,... devices individually.
Half the RAID seems to be missing, but since this was a mirror, it fortunately still works.
Since you didn't post the entire, unaltered output of mdstat I can't tell you where to mount which in what order.
Last edited by Corona688; 03-28-2011 at 12:16 PM..
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LEARN ABOUT SUSE
mkfs.btrfs
MKFS.BTRFS(8) System Manager's Manual MKFS.BTRFS(8) NAME
mkfs.btrfs - create an btrfs filesystem SYNOPSIS
mkfs.btrfs [ -A alloc-start ] [ -b byte-count ] [ -d data-profile ] [ -l leafsize ] [ -L label ] [ -m metadata profile ] [ -n nodesize ] [ -s sectorsize ] [ -h ] [ -V ] device [ device ... ] DESCRIPTION
mkfs.btrfs is used to create an btrfs filesystem (usually in a disk partition, or an array of disk partitions). device is the special file corresponding to the device (e.g /dev/sdXX ). If multiple devices are specified, btrfs is created spanning across the specified devices. OPTIONS
-A, --alloc-start offset Specify the offset from the start of the device to start the btrfs filesystem. The default value is zero, or the start of the device. -b, --byte-count size Specify the size of the resultant filesystem. If this option is not used, mkfs.btrfs uses all the available storage for the filesys- tem. -d, --data type Specify how the data must be spanned across the devices specified. Valid values are raid0, raid1, raid10 or single. -l, --leafsize size Specify the leaf size, the least data item in which btrfs stores data. The default value is the page size. -L, --label name Specify a label for the filesystem. -m, --metadata profile Specify how metadata must be spanned across the devices specified. Valid values are raid0, raid1, raid10 or single. -n, --nodesize size Specify the nodesize. By default the value is set to the pagesize. -s, --sectorsize size Specify the sectorsize, the minimum block allocation. -V, --version Print the mkfs.btrfs version and exit. AVAILABILITY
mkfs.btrfs is part of btrfs-progs. Btrfs is currently under heavy development, and not suitable for any uses other than benchmarking and review. Please refer to the btrfs wiki http://btrfs.wiki.kernel.org for further details. SEE ALSO
btrfsck(8) MKFS.BTRFS(8)