[BlueOnyx:15108] Re: DegradedArray event on /dev/md0

[RC Barker]

Ok Drive replaced
smartctl -i -d ata /dev/sda
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

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Caviar Blue Serial ATA
Device Model:     WDC WD5000AAKS-00V6A0
Serial Number:    WD-WMAWF2368322
LU WWN Device Id: 5 0014ee 206d583eb
Firmware Version: 05.01D05
User Capacity:    500,107,862,016 bytes [500 GB]
Sector Size:      512 bytes logical/physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   8
ATA Standard is:  Exact ATA specification draft version not indicated
Local Time is:    Sun Apr  6 22:05:46 2014 EDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

Get this when trying to add what am I missing?
mdadm hotadd /dev/md0  /dev/sda1
mdadm: An option must be given to set the mode before a second device is 
listed


mdadm /dev/md0 -a /dev/sda1
mdadm: cannot find /dev/sda1: No such file or directory

Thanks RC

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