2012/12/4 Joshua C. <joshuacov@xxxxxxxxx>: > I have two 1TB disk that have been running in raid1 with the > intel-p67-built-in controller. Those were created in bios (uefi; > imsm-raids) 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 I cannot access my windows-raid-partition (/dev/md126p2 on > /dev/sd[bc]) from within linux and get the following error: "md126: p2 > size 209711104 extends beyond EOD, truncated" > > Looking into the data, I see that my windows-raid-partition has > actually 4! partitions on it. This should be wrong. This what > mdadm-3.2.6 says about my disks under kernel-3.6.8.fc17.x86_64: > > =========================================== > [root@localhost]# mdadm -E /dev/md127 > /dev/md127: > Magic : Intel Raid ISM Cfg Sig. > Version : 1.1.00 > Orig Family : 88e429ad > Family : 1e27d1ba > Generation : 0001ad23 > Attributes : All supported > UUID : 516f8fc8:bd5e663f:c254ea22:d30bb530 > Checksum : 2438ebf9 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]# mdadm -D /dev/md127 > /dev/md127: > Version : imsm > Raid Level : container > Total Devices : 2 > > Working Devices : 2 > > > UUID : 516f8fc8:bd5e663f:c254ea22:d30bb530 > Member Arrays : /dev/md/Volume0 > > Number Major Minor RaidDevice > > 0 8 32 - /dev/sdc > 1 8 16 - /dev/sdb > =========================================== > [root@localhost]# mdadm -E /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 -D /dev/md126 > /dev/md126: > Container : /dev/md127, member 0 > Raid Level : raid1 > Array Size : 976759808 (931.51 GiB 1000.20 GB) > Used Dev Size : 976759940 (931.51 GiB 1000.20 GB) > Raid Devices : 2 > Total Devices : 2 > > State : clean > Active Devices : 2 > Working Devices : 2 > Failed Devices : 0 > Spare Devices : 0 > > > UUID : fa85ec01:25e9c177:da74f1e6:03284c35 > Number Major Minor RaidDevice State > 1 8 16 0 active sync /dev/sdb > 0 8 32 1 active sync /dev/sdc > =========================================== > [root@localhost]# mdadm -E /dev/md126p1 > =========================================== > [root@localhost]# mdadm -D /dev/md126p1 > /dev/md126p1: > Container : /dev/md127, member 0 > Raid Level : raid1 > Array Size : 871905280 (831.51 GiB 892.83 GB) > Used Dev Size : 976759940 (931.51 GiB 1000.20 GB) > Raid Devices : 2 > Total Devices : 2 > > State : clean > Active Devices : 2 > Working Devices : 2 > Failed Devices : 0 > Spare Devices : 0 > > > UUID : fa85ec01:25e9c177:da74f1e6:03284c35 > Number Major Minor RaidDevice State > 1 8 16 0 active sync /dev/sdb > 0 8 32 1 active sync /dev/sdc > =========================================== > [root@localhost]# mdadm -E /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]# mdadm -D /dev/md126p2 > /dev/md126p2: > Container : /dev/md127, member 0 > Raid Level : raid1 > Array Size : 104853504 (100.00 GiB 107.37 GB) > Used Dev Size : 976759940 (931.51 GiB 1000.20 GB) > Raid Devices : 2 > Total Devices : 2 > > State : clean > Active Devices : 2 > Working Devices : 2 > Failed Devices : 0 > Spare Devices : 0 > > > UUID : fa85ec01:25e9c177:da74f1e6:03284c35 > Number Major Minor RaidDevice State > 1 8 16 0 active sync /dev/sdb > 0 8 32 1 active sync /dev/sdc > =========================================== > [root@localhost]# mdadm -E /dev/sdb > /dev/sdb: > Magic : Intel Raid ISM Cfg Sig. > Version : 1.1.00 > Orig Family : 88e429ad > Family : 1e27d1ba > Generation : 0001ad29 > Attributes : All supported > UUID : 516f8fc8:bd5e663f:c254ea22:d30bb530 > Checksum : 2438ebff 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]# mdadm -E /dev/sdc > /dev/sdc: > Magic : Intel Raid ISM Cfg Sig. > Version : 1.1.00 > Orig Family : 88e429ad > Family : 1e27d1ba > Generation : 0001ad29 > Attributes : All supported > UUID : 516f8fc8:bd5e663f:c254ea22:d30bb530 > Checksum : 2438ebff correct > MPB Sectors : 1 > Disks : 2 > RAID Devices : 1 > > Disk01 Serial : WD-XXXXXXXXXXXX > State : active > Id : 00000003 > 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 : 1 > 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 > > Disk00 Serial : WD-XXXXXXXXXXXX > State : active > Id : 00000002 > Usable Size : 1953519880 (931.51 GiB 1000.20 GB) > =========================================== > [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]# 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 32 976762584 sdc > 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 > 8 64 2002943 sde > 8 65 2002942 sde1 > =========================================== > [root@localhost]# mdadm --examine --scan > ARRAY metadata=imsm UUID=516f8fc8:bd5e663f:c254ea22:d30bb530 > ARRAY /dev/md/Volume0 container=516f8fc8:bd5e663f:c254ea22:d30bb530 > member=0 UUID=fa85ec01:25e9c177:da74f1e6:03284c35 > =========================================== > [root@localhost]# mdadm --detail --scan > ARRAY /dev/md127 metadata=imsm UUID=516f8fc8:bd5e663f:c254ea22:d30bb530 > ARRAY /dev/md/Volume0 container=/dev/md127 member=0 > UUID=fa85ec01:25e9c177:da74f1e6:03284c35 > =========================================== > [root@localhost]# dmesg |grep md > [ 0.000000] Command line: initrd=initrd0.img > root=live:UUID=406D-2540 rootfstype=vfat ro liveimg quiet rhgb > rd.luks=0 rd.md=0 rd.dm=0 BOOT_IMAGE=vmlinuz0 > [ 0.000000] Kernel command line: initrd=initrd0.img > root=live:UUID=406D-2540 rootfstype=vfat ro liveimg quiet rhgb > rd.luks=0 rd.md=0 rd.dm=0 BOOT_IMAGE=vmlinuz0 > [ 1.277784] dracut: rd.md=0: removing MD RAID activation > [ 6.231138] md: bind<sdb> > [ 6.434862] md: bind<sdc> > [ 6.440260] md: bind<sdc> > [ 6.440383] md: bind<sdb> > [ 6.453438] md: raid1 personality registered for level 1 > [ 6.453654] md/raid1:md126: active with 2 out of 2 mirrors > [ 6.453678] md126: detected capacity change from 0 to 1000202043392 > [ 6.460137] md126: p1 p2 > [ 6.460268] md126: p2 size 209711104 extends beyond EOD, truncated > [ 6.464890] md: md126 switched to read-write mode. > [ 6.675396] md: export_rdev(sdc) > [ 6.675454] md: export_rdev(sdb) > [ 84.923953] md: export_rdev(sdc) > [ 84.924017] md: export_rdev(sdb) > [ 93.473151] md126: detected capacity change from 1000202043392 to 0 > [ 93.473228] md: md126 stopped. > [ 93.473236] md: unbind<sdb> > [ 93.479847] md: export_rdev(sdb) > [ 93.479858] md: unbind<sdc> > [ 93.486826] md: export_rdev(sdc) > [ 93.493682] md: md126 stopped. > [ 95.923141] md: md127 stopped. > [ 95.923151] md: unbind<sdc> > [ 95.927344] md: export_rdev(sdc) > [ 95.927504] md: unbind<sdb> > [ 95.936313] md: export_rdev(sdb) > [ 824.206594] md: md127 stopped. > [ 824.210398] md: bind<sdc> > [ 824.210840] md: bind<sdb> > [ 824.241537] md: bind<sdc> > [ 824.241612] md: bind<sdb> > [ 824.245817] md/raid1:md126: active with 2 out of 2 mirrors > [ 824.245829] md126: detected capacity change from 0 to 1000202043392 > [ 824.247377] md126: p1 p2 > [ 824.247545] md126: p2 size 209711104 extends beyond EOD, truncated > [ 824.261049] md: md126 switched to read-write mode. > [ 824.304567] md: export_rdev(sdc) > [ 824.304594] md: export_rdev(sdb) > [ 824.320417] md: export_rdev(sdc) > [ 824.320444] md: export_rdev(sdb) > [ 1161.533446] EXT4-fs (md126p1): warning: maximal mount count > reached, running e2fsck is recommended > [ 1161.573164] EXT4-fs (md126p1): mounted filesystem with ordered data > mode. Opts: (null) > [ 1161.573169] SELinux: initialized (dev md126p1, type ext4), uses xattr > =========================================== > > Can someone take a look at why mdadm cannot access the windows-raid-partition? > > > --joshua Anyone? Any idea why I cannot access my windows raid from linux? -- --joshua -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
