[Ocfs2-users] Quantifying OCFS2 network traffic...
Peter W. Morreale
pmorreale at novell.com
Thu Aug 6 09:31:38 PDT 2009
Hi all,
I'm trying to understand and quantify network traffic for a 32 node high
performance OCFS2 installation. Part of what I'm doing is attempting
to size the network hardware requirements. To do this I need some help
understanding the kinds and amounts of traffic generated during "normal"
use.
Once populated, the system will have a very high READ to WRITE op ratio.
I need to optimize OCFS2 (both hard/software-wise) for this use.
Conceptually, it would seem that DLM would be responsible for most of
the network traffic associated with ocfs2. Correct? Is DLM traffic the
same for a READ as for a WRITE?
Does ofcs2 itself send messages for reads and/or writes in normal use?
Any metrics known relating IO size to network traffic? Guesses?
If I'm using a 10GigE network, would I have a need for adding another
NIC and bonding?
Thanks,
-PWM
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