[CentOS] raid1 creation :: not large enough to join array

[Adrian Sevcenco]

Ian Murray wrote:
> ----- Original Message ----
> 
>> From: Adrian Sevcenco <Adrian.Sevcenco at cern.ch> To: CentOS mailing
>> list <centos at centos.org> Sent: Sat, 16 January, 2010 15:27:12 
>> Subject: [CentOS] raid1 creation :: not large enough to join array
>> 
>> Hi! I have 2 identical hdd (1002FBYS) with the same firmware, etc
>> .. really identical! when i try to add the second hdd to this raid1
>> array i have the message that /dev/sdb is not large enough to join
>> array!! on the first hdd i have 100 mb unpartitioned at the end of
>> disk (as i understood that mdadm put there some info...) Anyone,
>> any idea what can be wrong? i already done this procees several 
>> times and this is first time i encounter this and i have no idea
>> what can be the problem ..
>> 
>> Thanks! Adrian
> 
> Last time I got this, it was because I was trying to add the whole
> disk (/dev/sdb) rather than the partition /dev/sdb1. I don't know
well .. its ok to add /dev/sdb if you do /dev/md_dX style of raid..
http://wiki.centos.org/HowTos/Install_On_Partitionable_RAID1

and this was exactly what i was doing .. well, see my previous post
about the actual problem

Adrian
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