[BlueOnyx:15049] Re: DegradedArray event on /dev/md0

[Gerald Waugh]

On 03/31/2014 06:39 AM, RC Barker wrote:
> Hey Gerald,
> This is what I got
> [root at openx tmp]#  mdadm hotadd /dev/md0 /dev/sdb1
> mdadm: An option must be given to set the mode before a second device is 
> listed
> [root at openx tmp]# mdadm /dev/md0 -a /dev/sdb1
> mdadm: cannot find /dev/sdb1: No such file or directory
> [root at openx tmp]#
>
> And this
> [root at openx tmp]# smartctl -a /dev/sdb
> smartctl 5.42 2011-10-20 r3458 [i686-linux-2.6.18-348.12.1.el5PAE] 
> (local build)
> Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net
>
> Smartctl open device: /dev/sdb failed: No such device
> [root at openx tmp]#
> RC
check that sdb drive is connected properly. else looks like sdb may be kaput