[CentOS] CentOS 4 Software Raid1 questions

Fri Apr 29 17:20:33 UTC 2005
Lee Parmeter <leejpar at yahoo.com>

Software Raid 1:

I ended up first creating a software raid1 with a missing
2nd drive. Then I created the file system on /dev/md0 and
mounted it. Once mounted, I copied the data from the
original drive to the raid drive. Then I unmounted the
original data drive and defined it as the missing raid1

The next problem I had was that the raid did not
automaticly start when the server booted so I got an fstab
error for /dev/md0. The solution turned out to be creating
a mdadm.conf file. Once the config file had DEVICE and
ARRAY defines for the raid, I could both manually restart
the raid and it would auto startup at boot. So the /dev/md0
lines in fstab work.

I did not find any information on the web concerning the
requirement of the mdadm.conf file and the relationship to
the auto start of the raid. I had to work a bit in the dark
to get it to work as I thought it should. 

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Lee Parmeter Emperor, linXos - The Flying Penguin
Linux Registered User #337161 

'It's free. It works. Duh.'" - Eric Harrison

The United States is NOT a democracy, it was founded as a Republic!

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