RAID5 sovaro provlima!

[Tasos Varoudis]

Orea ekana ena reboot kai etreksa to 
# mdadm -Af --run  /dev/md0 /dev/hde1 /dev/hdf1 /dev/hdg1
Kai vlepo ton dikso OK (ekana kai fsck ola ok)

admin root # cat /proc/mdstat
Personalities : [raid5] [multipath]
md0 : active raid5 hde1[0] hdg1[2] hdf1[1]
      351557952 blocks level 5, 64k chunk, algorithm 2 [4/3] [UUU_]

unused devices: <none>

admin root # df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/hda3              19G  9.3G  8.4G  53% /
none                  505M     0  505M   0% /dev/shm
/dev/md0              336G  253G   83G  76% /mnt/data

Etimazome gia ena backup.

Meta na kano raidhotadd ton tetarto disko?h kati alo?
(simiosi oti o tetartos diskos exi gini pari fdisk opote tha prepi na gini kai
rebuild apo tous alous)



Antonis Valakas <avalak at intracom.gr> said:

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> Tasos Varoudis wrote:
> 
> >admin mdadm-1.9.0 # mdadm -A /dev/md0 /dev/hde1 /dev/hdf1 /dev/hdg1
> >mdadm: /dev/md0 assembled from 3 drives - need all 4 to start it (use --run to
> >insist).
> >
> >
> >
> Γιατί δεν κάνεις αυτό που σου λέει;
> 
> # mdadm -Af --run  /dev/md0 /dev/hde1 /dev/hdf1 /dev/hdg1
> 
> >admin mdadm-1.9.0 # mdadm -R /dev/md0
> >mdadm: failed to run array /dev/md0: Invalid argument
> >
> >admin mdadm-1.9.0 # cat /proc/mdstat
> >Personalities : [raid5] [multipath]
> >md0 : inactive hde1[0] hdg1[2] hdf1[1]
> >      351557952 blocks
> >unused devices: <none>
> >
> >sto /etc/mdadm.conf evala apo oti katalava sto man
> >
> >DEVICE /dev/hde1 /dev/hdf1 /dev/hdg1 /dev/hdh1
> >ARRAY /dev/md0 devices=/dev/hde1,/dev/hdf1,/dev/hdg1,/dev/hdh1
> >
> >
> >
> >
> Μην χρησιμοποιήσεις ακόμα το mdadm.conf
> 
> 
> --
> 
> Antonis Valakas
> 
> Systems Consultant
> Multiservice Networks - Intracom SA
> 
> email: avalak_at_intracom.gr
> 
>   www: www.intracom.gr
>