>-----Original Message----- >From: Andreas Klauer [mailto:Andreas.Klauer@xxxxxxxxxxxxxx] >Sent: 26 May 2016 12:41 >To: Bryan Hepworth >Cc: linux-raid@xxxxxxxxxxxxxxx >Subject: Re: mdadm remove old md details reassemble working drives > >On Thu, May 26, 2016 at 09:56:24AM +0000, Bryan Hepworth wrote: >> /etc/mdadm.conf >> >> [root@inscribe5 etc]# cat mdadm.conf >> ARRAY /dev/md/inscribe5.ncl.ac.uk:130 level=raid5 num-devices=12 >metadata=1.2 name=inscribe5.ncl.ac.uk:130 >UUID=cb850648:d5b35007:dc6000f0:b48ab578 >> >devices=/dev/sdb,/dev/sdc,/dev/sdd,/dev/sde,/dev/sdf,/dev/sdg,/dev/sdh, >/dev/sdi,/dev/sdj,/dev/sdk,/dev/sdl,/dev/sdm >> ARRAY /dev/md/igmimager.ncl.ac.uk:136 level=raid5 num-devices=12 >metadata=1.2 name=igmimager.ncl.ac.uk:136 >UUID=b4cb3aaf:e09885cb:6c0ea8bf:a4118a61 >> >devices=/dev/sdn,/dev/sdo,/dev/sdp,/dev/sdq,/dev/sdr,/dev/sds,/dev/sdt, >/dev/sdu,/dev/sdv,/dev/sdw,/dev/sdx,/dev/sdy > >That looks a bit overengineered... > >You can reduce the mdadm.conf to just use UUID and nothing else > >ARRAY /dev/md0 UUID=cb850648:d5b35007:dc6000f0:b48ab578 > >Keep the /dev/md/name if you need it but everything else >(num-devices, metadata, devices, level, ...) is part >of the metadata, no need to duplicate it in the conf. > >There doesn't seem to be a problem with the metadata itself >(all clean, same update time, same event count) so unless >the devices get detected late or something it should just work >when assembling by UUID... > >Regards >Andreas Klauer Thanks Andreas Works like a charm, back up and running thanks so much for your input. Bryan -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
