Thanks Justin. If that's the only risk, I'll go with full devices. This 
will ultimately be a headless system with a separate boot drive and 
only administered by me and used internally, so I'll be careful. :-)

Many thanks!
-Thomas

-----Original Message-----
From: Justin Piszcz <redacted>
To: thomas62186218@aol.com
Cc: linux-raid@vger.kernel.org
Sent: Mon, 30 Jun 2008 12:50 pm
Subject: Re: Whole drives or Only partitions for mdadm software RAIDs?









 

On Mon, 30 Jun 2008, thomas62186218@aol.com wrote: 
 

Hi all, 

I have a simple question: 

Is there any problem using the full hard drive (/dev/sdb, /dev/sdc, 

etc) as

opposed to partitions (/dev/sdb1, /dev/sdc1, etc) when creating 

software

RAIDs? I'd rather commit the full device to the RAID since I am 

certain I

won't use it for anything else, and I am scripting this so I don't 

want to

have to fdisk every drive before creating a RAID...that would take 

far too

much time. Most mdadm documentation always refers to partitions 

rather than

full devices, so I wanted to make sure it was indeed OK to use full 

devices. 

Please let me know. Thank you all! 

Thanks! 

Thomas 

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Best to use partitions, so if you over-write the MBR  of the drive it
won't mess up the RAID (e.g., run LILO on a raid volume => oops! but if
its a partition, no problems).. 
 

Justin. 

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