----- Original Message ----
From: Adrian Sevcenco Adrian.Sevcenco@cern.ch To: CentOS mailing list centos@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 enough about what you are doing or RAID for that matter to know if that is exactly what you are doing, but it may help.
Regards,
Ian.