How to generate a large file allocating space

[Alex Bligh]

--On 1 November 2010 00:13:33 -0600 Andreas Dilger <adilger at dilger.ca> 
wrote:

> Hmm, why not simply use a cluster filesystem to do this?
>
> GFS and OCFS both handle shared writers for the same SAN disk (AFAIK),
> and Lustre uses ext4 as the underlying filesystem, and though it doesn't
> allow direct client writes to the same disk it will allow writing at 95%
> of the underlying raw disk performance from multiple clients.

Essentially because none of them do exactly what I need them to do,
so I am reinventing a slightly different wheel...

-- 
Alex Bligh