Re: Cum reactivez un raid 5 cu mdadm ?

"Paul Lacatus (Personal)" <[email protected]>
Newsgroups gmane.org.user-groups.rlug.general
Message-ID <[email protected]>
Am reasamblat aria ca /dev/md0 . La inceput nu a vrut sa adauge si 
/dev/sda1 , cu --readd nu a vrut cu --add l-a adaugat si acum ii face 
rebuilding

[root@datavault ~]# mdadm /dev/md0 --add /dev/sda1
mdadm: added /dev/sda1
[root@datavault ~]# mdadm -D /dev/md0
/dev/md0:
            Version : 0.90
      Creation Time : Sat Dec 18 20:07:41 2010
         Raid Level : raid5
         Array Size : 2930279808 (2794.53 GiB 3000.61 GB)
      Used Dev Size : 976759936 (931.51 GiB 1000.20 GB)
       Raid Devices : 4
      Total Devices : 4
    Preferred Minor : 0
        Persistence : Superblock is persistent

        Update Time : Sat Dec 30 13:00:12 2017
              State : clean, degraded, recovering
     Active Devices : 3
    Working Devices : 4
     Failed Devices : 0
      Spare Devices : 1

             Layout : left-symmetric
         Chunk Size : 64K

Consistency Policy : resync

     Rebuild Status : 0% complete

               UUID : 188f7506:c03bd2ac:cdc3d78b:f6534f77
             Events : 0.14849

     Number   Major   Minor   RaidDevice State
        0       8       17        0      active sync /dev/sdb1
        1       8       33        1      active sync /dev/sdc1
        2       8       49        2      active sync /dev/sdd1
        4       8        1        3      spare rebuilding   /dev/sda1



On 30-Dec-17 12:47, Paul Lacatus (Personal) wrote:
> La serverul meu de fisiere de acasa mi-a picat sursa .  Pana sa ma 
> prind ca e sursa de vina , facea probleme cand erau toate hdd 
> alimentate ,  s-a dus si centos 6.9 care dadea kernel panic not 
> tainted. Cu ocazia asta am reinstalat cu un centos 7.4
>
> treaba e ca acum raid-ul fost /dev/md127 a devenit inactiv :
>
>> [root@datavault ~]# mdadm --detail /dev/md127
>> /dev/md127:
>>            Version : 0.90
>>         Raid Level : raid0
>>      Total Devices : 4
>>    Preferred Minor : 0
>>        Persistence : Superblock is persistent
>>
>>              State : inactive
>>
>>               UUID : 188f7506:c03bd2ac:cdc3d78b:f6534f77
>>             Events : 0.14838
>>
>>     Number   Major   Minor   RaidDevice
>>
>>        -       8        1        -        /dev/sda1
>>        -       8       17        -        /dev/sdb1
>>        -       8       33        -        /dev/sdc1
>>        -       8       49        -        /dev/sdd1
>
> la examinare pe fiecare disc in parte datele par a fi ok dar aria nu 
> pleaca din cauza testelor facute  . Trebuie sa recreez aria sau se 
> poate reporni ?
>
>>  cat raid.status
>> /dev/sda1:
>>           Magic : a92b4efc
>>         Version : 0.90.00
>>            UUID : 188f7506:c03bd2ac:cdc3d78b:f6534f77
>>   Creation Time : Sat Dec 18 20:07:41 2010
>>      Raid Level : raid5
>>   Used Dev Size : 976759936 (931.51 GiB 1000.20 GB)
>>      Array Size : 2930279808 (2794.53 GiB 3000.61 GB)
>>    Raid Devices : 4
>>   Total Devices : 4
>> Preferred Minor : 127
>>
>>     Update Time : Thu Dec 28 11:38:37 2017
>>           State : clean
>>  Active Devices : 4
>> Working Devices : 4
>>  Failed Devices : 0
>>   Spare Devices : 0
>>        Checksum : 279913d8 - correct
>>          Events : 14838
>>
>>          Layout : left-symmetric
>>      Chunk Size : 64K
>>
>>       Number   Major   Minor   RaidDevice State
>> this     3       8        1        3      active sync /dev/sda1
>>
>>    0     0       8       17        0      active sync /dev/sdb1
>>    1     1       8       33        1      active sync /dev/sdc1
>>    2     2       8       49        2      active sync /dev/sdd1
>>    3     3       8        1        3      active sync /dev/sda1
>> /dev/sdb1:
>>           Magic : a92b4efc
>>         Version : 0.90.00
>>            UUID : 188f7506:c03bd2ac:cdc3d78b:f6534f77
>>   Creation Time : Sat Dec 18 20:07:41 2010
>>      Raid Level : raid5
>>   Used Dev Size : 976759936 (931.51 GiB 1000.20 GB)
>>      Array Size : 2930279808 (2794.53 GiB 3000.61 GB)
>>    Raid Devices : 4
>>   Total Devices : 3
>> Preferred Minor : 127
>>
>>     Update Time : Sat Dec 30 10:19:54 2017
>>           State : clean
>>  Active Devices : 3
>> Working Devices : 3
>>  Failed Devices : 1
>>   Spare Devices : 0
>>        Checksum : 279ba477 - correct
>>          Events : 14846
>>
>>          Layout : left-symmetric
>>      Chunk Size : 64K
>>
>>       Number   Major   Minor   RaidDevice State
>> this     0       8       17        0      active sync /dev/sdb1
>>
>>    0     0       8       17        0      active sync /dev/sdb1
>>    1     1       8       33        1      active sync /dev/sdc1
>>    2     2       8       49        2      active sync /dev/sdd1
>>    3     3       0        0        3      faulty removed
>> /dev/sdc1:
>>           Magic : a92b4efc
>>         Version : 0.90.00
>>            UUID : 188f7506:c03bd2ac:cdc3d78b:f6534f77
>>   Creation Time : Sat Dec 18 20:07:41 2010
>>      Raid Level : raid5
>>   Used Dev Size : 976759936 (931.51 GiB 1000.20 GB)
>>      Array Size : 2930279808 (2794.53 GiB 3000.61 GB)
>>    Raid Devices : 4
>>   Total Devices : 3
>> Preferred Minor : 127
>>
>>     Update Time : Sat Dec 30 10:20:32 2017
>>           State : active
>>  Active Devices : 3
>> Working Devices : 3
>>  Failed Devices : 1
>>   Spare Devices : 0
>>        Checksum : 279b6ab1 - correct
>>          Events : 14847
>>
>>          Layout : left-symmetric
>>      Chunk Size : 64K
>>
>>       Number   Major   Minor   RaidDevice State
>> this     1       8       33        1      active sync /dev/sdc1
>>
>>    0     0       8       17        0      active sync /dev/sdb1
>>    1     1       8       33        1      active sync /dev/sdc1
>>    2     2       8       49        2      active sync /dev/sdd1
>>    3     3       0        0        3      faulty removed
>> /dev/sdd1:
>>           Magic : a92b4efc
>>         Version : 0.90.00
>>            UUID : 188f7506:c03bd2ac:cdc3d78b:f6534f77
>>   Creation Time : Sat Dec 18 20:07:41 2010
>>      Raid Level : raid5
>>   Used Dev Size : 976759936 (931.51 GiB 1000.20 GB)
>>      Array Size : 2930279808 (2794.53 GiB 3000.61 GB)
>>    Raid Devices : 4
>>   Total Devices : 3
>> Preferred Minor : 127
>>
>>     Update Time : Sat Dec 30 10:20:32 2017
>>           State : active
>>  Active Devices : 3
>> Working Devices : 3
>>  Failed Devices : 1
>>   Spare Devices : 0
>>        Checksum : 279b6ac3 - correct
>>          Events : 14847
>>
>>          Layout : left-symmetric
>>      Chunk Size : 64K
>>
>>       Number   Major   Minor   RaidDevice State
>> this     2       8       49        2      active sync /dev/sdd1
>>
>>    0     0       8       17        0      active sync /dev/sdb1
>>    1     1       8       33        1      active sync /dev/sdc1
>>    2     2       8       49        2      active sync /dev/sdd1
>>    3     3       0        0        3      faulty removed
>> [root@datavault ~]#
>
>
>
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