From mboxrd@z Thu Jan  1 00:00:00 1970
From: NeilBrown <neilb@suse.de>
Subject: Re: cannot re-assmble mdadm array
Date: Sat, 12 Apr 2014 19:54:02 +1000
Message-ID: <20140412195402.3f2a720e@notabene.brown>
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To: Andrew Ryder <tireman@shaw.ca>
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On Sat, 12 Apr 2014 01:18:32 -0600 (MDT) Andrew Ryder <tireman@shaw.ca> wro=
te:

>=20
> # mdadm --assemble --run --force -vvv /dev/md2=20
>=20
> mdadm: looking for devices for /dev/md2
> mdadm: /dev/disk/by-id/ata-ST2000DL003-9VT166_5YD4PLD3-part1 is not one of
> /dev/disk/by-id/ata-SAMSUNG_HD204UI_S2HGJ9CZB04511-part1,/dev/disk/by-id/=
ata-SAMSUNG_HD204UI_S2HGJ9BZB13889-part1,/dev/disk/by-id/ata-ST2000DL001-9V=
T156_5YD1516L-part1,/dev/disk/by-id/ata-ST3000DM001-1CH166_Z1F31KGY-part1
> mdadm: /dev/disk/by-id/ata-ST2000DL003-9VT166_5YD4PSMK-part1 is not one of
> /dev/disk/by-id/ata-SAMSUNG_HD204UI_S2HGJ9CZB04511-part1,/dev/disk/by-id/=
ata-SAMSUNG_HD204UI_S2HGJ9BZB13889-part1,/dev/disk/by-id/ata-ST2000DL001-9V=
T156_5YD1516L-part1,/dev/disk/by-id/ata-ST3000DM001-1CH166_Z1F31KGY-part1
> mdadm: /dev/disk/by-id/ata-ST2000DL003-9VT166_5YD4QHNL-part1 is not one of
> /dev/disk/by-id/ata-SAMSUNG_HD204UI_S2HGJ9CZB04511-part1,/dev/disk/by-id/=
ata-SAMSUNG_HD204UI_S2HGJ9BZB13889-part1,/dev/disk/by-id/ata-ST2000DL001-9V=
T156_5YD1516L-part1,/dev/disk/by-id/ata-ST3000DM001-1CH166_Z1F31KGY-part1
> mdadm: Not a listed device for /dev/md1.
> mdadm: Not a listed device for /dev/md3.
> mdadm: Not a listed device for /dev/md1.
> mdadm: Not a listed device for /dev/md3.
> mdadm: Not a listed device for /dev/md1.
> mdadm: Not a listed device for /dev/md3.
> mdadm: Not a listed device for /dev/md1.
> mdadm: Not a listed device for /dev/md3.
> mdadm: /dev/disk/by-id/ata-SAMSUNG_HD204UI_S2HGJ9CZB04511-part1 is identi=
fied as a member of /dev/md2, slot 0.
> mdadm: /dev/disk/by-id/ata-SAMSUNG_HD204UI_S2HGJ9BZB13889-part1 is identi=
fied as a member of /dev/md2, slot 1.
> mdadm: /dev/disk/by-id/ata-ST2000DL001-9VT156_5YD1516L-part1 is identifie=
d as a member of /dev/md2, slot 2.
> mdadm: /dev/disk/by-id/ata-ST3000DM001-1CH166_Z1F31KGY-part1 is identifie=
d as a member of /dev/md2, slot 3.
> mdadm: added /dev/disk/by-id/ata-SAMSUNG_HD204UI_S2HGJ9BZB13889-part1 to =
/dev/md2 as 1
> mdadm: added /dev/disk/by-id/ata-ST2000DL001-9VT156_5YD1516L-part1 to /de=
v/md2 as 2 (possibly out of date)
> mdadm: added /dev/disk/by-id/ata-ST3000DM001-1CH166_Z1F31KGY-part1 to /de=
v/md2 as 3 (possibly out of date)
> mdadm: added /dev/disk/by-id/ata-SAMSUNG_HD204UI_S2HGJ9CZB04511-part1 to =
/dev/md2 as 0
> mdadm: failed to RUN_ARRAY /dev/md2: Input/output error

I haven't looked closely, but what version of mdadm is this?
And what happens if you try the latest=20
  git clone git://neil.brown.name/mdadm;cd mdadm;make;./mdadm....

NeilBrown

> mdadm: Not enough devices to start the array.
>=20

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