On Thu, 17 Jan 2013, Peter Wood wrote:

Unless there is some other way to test what/where these write operations are 
applied.

You can install Brendan Gregg's DTraceToolkit and use it to find out who and what is doing all the writing. 1.2GB in an hour is quite a lot of writing. If this is going continuously, then it may be causing more fragmentation in conjunction with your snapshots.

See "http://www.brendangregg.com/dtrace.html";.

Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
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