Re: Cum reactivez un raid 5 cu mdadm ?

Bogdan-Stefan Rotariu <[email protected]>
Newsgroups gmane.org.user-groups.rlug.general
Message-ID <[email protected]> 
Pare ok acum, Consistency Policy : resync

Nu uita sa faci mdadm.conf si mkinitrd astfel incat la reboot sa pastreze acelasi device

mdadm --detail --scan > /etc/mdadm/mdadm.conf
sau /etc/mdadm.conf


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> On Dec 30, 2017, at 13:05, Paul Lacatus (Personal) <[email protected]> wrote:
> 
> 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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