1 Reply Latest reply on Mar 31, 2016 1:12 PM by ivanu_intel

    RAID 1 Fedora

    pmehshqasp

      Hi All,

       

      Trying to correctly configure software RAID1

      (FakeRaid) (two mirrored hard drives) on motherboard ASUS H97M-PLUS.

       

      I have selected RAID in BIOS settings, rebooted, when prompted clicked CTR+I, configured two identical hard drives in system as mirrored RAID 1.

      After that I had problem with running Fedora 23 (because I have separate disk for system), but I have made some changes configuration in BIOS and Fedora 23 run ok.

       

      After starting the system, I have checked:


      fdisk -l

      Disk /dev/sdb: 2,7 TiB, bajtów: 3000592982016, sektorów: 5860533168


      Disk /dev/sdc: 2,7 TiB, bajtów: 3000592982016, sektorów: 5860533168


      Disk /dev/md126: 2,7 TiB, bajtów: 3000590401536, sektorów: 5860528128


      cat /proc/mdstat

      cat /proc/mdstat

      Personalities : [raid1]

      md126 : active raid1 sdb[1] sdc[0]

            2930264064 blocks super external:/md127/0 [2/2] [UU]

            [===>.................]  resync = 19.8% (582018432/2930264196) finish=279.8min speed=139854K/sec

       

       

      md127 : inactive sdb[1](S) sdc[0](S)

            4776 blocks super external:imsm

       

       

      unused devices: <none>

       

       

      mdadm --detail /dev/md126

      /dev/md126:

            Container : /dev/md/imsm0, member 0

           Raid Level : raid1

           Array Size : 2930264064 (2794.52 GiB 3000.59 GB)

        Used Dev Size : 2930264196 (2794.52 GiB 3000.59 GB)

         Raid Devices : 2

        Total Devices : 2

       

       

                State : clean, resyncing

      Active Devices : 2

      Working Devices : 2

      Failed Devices : 0

        Spare Devices : 0

       

       

        Resync Status : 20% complete

       

       

       

       

                 UUID : 74a4b34b:2e81f84f:e7699a3f:e0a255b8

          Number   Major   Minor   RaidDevice State

             1       8       16        0      active sync   /dev/sdb

             0       8       32        1      active sync   /dev/sdc

       

       

      mdadm --detail /dev/md127

      /dev/md127:

              Version : imsm

           Raid Level : container

        Total Devices : 2

       

       

      Working Devices : 2

       

       

       

       

                 UUID : 52c887df:a75d1d97:9cd30e1d:c5bddc10

        Member Arrays : /dev/md/Volume1_0

       

       

          Number   Major   Minor   RaidDevice

       

       

             0       8       32        -        /dev/sdc

             1       8       16        -        /dev/sdb

       

       

       

       

      mdadm --examine /dev/sdb

      /dev/sdb:

                Magic : Intel Raid ISM Cfg Sig.

              Version : 1.3.00

          Orig Family : 91f37361

               Family : 91f37361

           Generation : 0000000f

           Attributes : All supported

                 UUID : 52c887df:a75d1d97:9cd30e1d:c5bddc10

             Checksum : da81eba3 correct

          MPB Sectors : 2

                Disks : 2

         RAID Devices : 1

       

       

        Disk00 Serial : WD-WCC4N7XUAJ6V

                State : active

                   Id : 00000002

          Usable Size : 5860528392 (2794.52 GiB 3000.59 GB)

       

       

      [Volume1]:

                 UUID : 74a4b34b:2e81f84f:e7699a3f:e0a255b8

           RAID Level : 1 <-- 1

              Members : 2 <-- 2

                Slots : [UU] <-- [UU]

          Failed disk : none

            This Slot : 0

           Array Size : 5860528128 (2794.52 GiB 3000.59 GB)

         Per Dev Size : 5860528392 (2794.52 GiB 3000.59 GB)

        Sector Offset : 0

          Num Stripes : 22892688

           Chunk Size : 64 KiB <-- 64 KiB

             Reserved : 0

        Migrate State : initialize

            Map State : normal <-- uninitialized

           Checkpoint : 2025483 (512)

          Dirty State : clean

       

       

        Disk01 Serial : WD-WCC4N7XUA77D

                State : active

                   Id : 00000004

          Usable Size : 5860528392 (2794.52 GiB 3000.59 GB)

       

       

      mdadm --examine /dev/sdc

      /dev/sdc:

                Magic : Intel Raid ISM Cfg Sig.

              Version : 1.3.00

          Orig Family : 91f37361

               Family : 91f37361

           Generation : 00000010

           Attributes : All supported

                 UUID : 52c887df:a75d1d97:9cd30e1d:c5bddc10

             Checksum : da84674b correct

          MPB Sectors : 2

                Disks : 2

         RAID Devices : 1

       

       

        Disk01 Serial : WD-WCC4N7XUA77D

                State : active

                   Id : 00000004

          Usable Size : 5860528392 (2794.52 GiB 3000.59 GB)

       

       

      [Volume1]:

                 UUID : 74a4b34b:2e81f84f:e7699a3f:e0a255b8

           RAID Level : 1 <-- 1

              Members : 2 <-- 2

                Slots : [UU] <-- [UU]

          Failed disk : none

            This Slot : 1

           Array Size : 5860528128 (2794.52 GiB 3000.59 GB)

         Per Dev Size : 5860528392 (2794.52 GiB 3000.59 GB)

        Sector Offset : 0

          Num Stripes : 22892688

           Chunk Size : 64 KiB <-- 64 KiB

             Reserved : 0

        Migrate State : initialize

            Map State : normal <-- uninitialized

           Checkpoint : 2188210 (512)

          Dirty State : clean

       

       

        Disk00 Serial : WD-WCC4N7XUAJ6V

                State : active

                   Id : 00000002

          Usable Size : 5860528392 (2794.52 GiB 3000.59 GB)

       

       

      mdadm --examine --scan

      ARRAY metadata=imsm UUID=52c887df:a75d1d97:9cd30e1d:c5bddc10

      ARRAY /dev/md/Volume1 container=52c887df:a75d1d97:9cd30e1d:c5bddc10 member=0 UUID=74a4b34b:2e81f84f:e7699a3f:e0a255b8

       

       

      mdadm --detail-platform

      Platform : Intel(R) Rapid Storage Technology

              Version : 13.0.0.2075

          RAID Levels : raid0 raid1 raid10 raid5

          Chunk Sizes : 4k 8k 16k 32k 64k 128k

          2TB volumes : supported

            2TB disks : supported

            Max Disks : 6

          Max Volumes : 2 per array, 4 per controller

      I/O Controller : /sys/devices/pci0000:00/0000:00:1f.2 (SATA)

                Port1 : /dev/sda (6VEJHGG0)

                Port2 : /dev/sdb (WD-WCC4N7XUAJ6V)

                Port4 : /dev/sdc (WD-WCC4N7XUA77D)

                Port0 : - no device attached -

                Port3 : - no device attached -

                Port5 : - no device attached -

       

       

       

      lsblk

      NAME                 MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINT

      sda                    8:0    0 465,8G  0 disk

      ├─sda1                 8:1    0   200M  0 part  /boot/efi

      ├─sda2                 8:2    0   500M  0 part  /boot

      └─sda3                 8:3    0 465,1G  0 part

        ├─fedora_htpc-root 253:0    0    50G  0 lvm   /

        ├─fedora_htpc-swap 253:1    0   7,8G  0 lvm   [SWAP]

        └─fedora_htpc-home 253:2    0 407,3G  0 lvm   /home

      sdb                    8:16   0   2,7T  0 disk

      └─md126                9:126  0   2,7T  0 raid1

      sdc                    8:32   0   2,7T  0 disk

      └─md126                9:126  0   2,7T  0 raid1

       

       

       

      pwd

      /dev/md

      ls -la

      lrwxrwxrwx  1 root root    8 03-30 16:32 imsm0 -> ../md127

      lrwxrwxrwx  1 root root    8 03-30 16:32 Volume1_0 -> ../md126

       

      The problem is that I do not know what to do next. Should I create partitions on /dev/sdb and /dev/sdc. And Should I create partitions on /dev/md126 and mout and copy files and all files will saves on both devices.

       

      I did not configure RAID in Fedora, all these was activated after I changed RAID in BIOS.