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Maxim Dounin mdounin at mdounin.ru
Thu Oct 14 18:03:37 MSD 2010


Hello!

On Thu, Oct 14, 2010 at 01:45:55PM +0000, iptablez at yahoo.com wrote:

> It's almost 400GB striped size.

The question was:

>> What is stripe size of the RAID ?

See here for details:

http://en.wikipedia.org/wiki/RAID0#RAID_0
http://en.wikipedia.org/wiki/Data_striping

Obviously with 73G disks stripe size can't be more than 73G, 
effectively making it simple concatenation:

http://en.wikipedia.org/wiki/Non-RAID_drive_architectures#Concatenation_.28SPAN.2C_BIG.29

Using too low stripe size is bad as it forces several disk 
accesses for single IO request.

Maxim Dounin



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