I have two 1tb disk that have been running in raid1 with the
intel-p67-built-in controller. Those were created in bios (uefi) and
are actually fake(software) raids. Windows sees only his own (ntfs)
raid and everything is fine. Under linux I set the partition type to
0xfd (linux auto raid) and mdadm can successfully see and access the
linux raid partion.
However mdadm cannot access the windows raid and I have each partition
three(!) times under KDE-Dolphin. So each time I click
(unintentionally) on the real hdd-partition instead of the
mdadm-partition I trigger the check of the raid, which takes about 3
hours.
How to make mdadm access the windows raid and ONLY show the raid
partitions in the kde-dolphin???
When I omit "rd.dm=0 and rd.md=0" on the command line then I see only
the raid partitions under kde-dolphin but for some reason I cannot
access them (so this is not a solution). Here is what mdadm says about
my disks (done with kernel-3.6.8.fc17.x86_64):
=============================
[root@localhost]# cat /proc/mdstat
Personalities : [raid1]
md126 : active raid1 sdb[1] sdc[0]
976759808 blocks super external:/md127/0 [2/2] [UU]
md127 : inactive sdb[1](S) sdc[0](S)
5288 blocks super external:imsm
unused devices: <none>
=============================
[root@localhost]# mdadm --examine /dev/md126
/dev/md126:
MBR Magic : aa55
Partition[0] : 1743810560 sectors at 2048 (type fd)
Partition[1] : 209711104 sectors at 1743812608 (type 07)
=============================
[root@localhost]# mdadm --examine /dev/md127
/dev/md127:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.1.00
Orig Family : 88e429ad
Family : 1e27d1ba
Generation : 0001acff
Attributes : All supported
UUID : 516f8fc8:bd5e663f:c254ea22:d30bb530
Checksum : 2438ebd3 correct
MPB Sectors : 1
Disks : 2
RAID Devices : 1
Disk00 Serial : WD-xxxxxxxxxxxx
State : active
Id : 00000002
Usable Size : 1953519880 (931.51 GiB 1000.20 GB)
[Volume0]:
UUID : fa85ec01:25e9c177:da74f1e6:03284c35
RAID Level : 1
Members : 2
Slots : [UU]
Failed disk : none
This Slot : 0
Array Size : 1953519616 (931.51 GiB 1000.20 GB)
Per Dev Size : 1953519880 (931.51 GiB 1000.20 GB)
Sector Offset : 0
Num Stripes : 7630936
Chunk Size : 64 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : clean
Disk01 Serial : WD-xxxxxxxxxxxx
State : active
Id : 00000003
Usable Size : 1953519880 (931.51 GiB 1000.20 GB)
=============================
[root@localhost]# cat /proc/partitions
major minor #blocks name
7 0 16 loop0
7 1 2796 loop1
7 2 900352 loop2
7 3 10485760 loop3
7 4 524288 loop4
8 0 62522712 sda
8 1 18350080 sda1
8 2 44171264 sda2
8 16 976762584 sdb
8 17 871905280 sdb1
8 18 104855552 sdb2
8 32 976762584 sdc
8 33 871905280 sdc1
8 34 104855552 sdc2
11 0 1048575 sr0
8 48 3903488 sdd
8 49 3903456 sdd1
253 0 10485760 dm-0
253 1 10485760 dm-1
9 126 976759808 md126
259 0 871905280 md126p1
259 1 104853504 md126p2
=============================
[root@localhost]# mdadm --examine /dev/md126p2
/dev/md126p2:
MBR Magic : aa55
Partition[0] : 1917848077 sectors at 6579571 (type 70)
Partition[1] : 1818575915 sectors at 1953251627 (type 43)
Partition[2] : 10 sectors at 225735265 (type 72)
Partition[3] : 51890 sectors at 2642411520 (type 00)
=============================
[root@localhost]# dmesg | grep md
[ 5.966318] md: bind<sdc>
[ 6.168403] md: bind<sdb>
[ 6.171261] md: bind<sdc>
[ 6.171463] md: bind<sdb>
[ 6.213554] md: raid1 personality registered for level 1
[ 6.215861] md/raid1:md126: active with 2 out of 2 mirrors
[ 6.216006] md126: detected capacity change from 0 to 1000202043392
[ 6.216775] md126: p1 p2
[ 6.216955] md126: p2 size 209711104 extends beyond EOD, truncated
[ 6.226735] md: md126 switched to read-write mode.
[ 6.436537] md: export_rdev(sdc)
[ 6.436733] md: export_rdev(sdb)
[ 227.889293] EXT4-fs (md126p1): warning: maximal mount count
reached, running e2fsck is recommended
[ 227.929448] EXT4-fs (md126p1): mounted filesystem with ordered data
mode. Opts: (null)
[ 227.929454] SELinux: initialized (dev md126p1, type ext4), uses xattr
=============================
[root@localhost]# mdadm --detail --scan
ARRAY /dev/md/imsm0 metadata=imsm UUID=516f8fc8:bd5e663f:c254ea22:d30bb530
ARRAY /dev/md/Volume0_0 container=/dev/md/imsm0 member=0
UUID=fa85ec01:25e9c177:da74f1e6:03284c35
=============================
--joshua
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