[PVFS2-users] help with pvfs performance

[Charles Shen]

Hi,

I have read the PVFS performance reported in the following link:

http://www.parl.clemson.edu/pvfs/desc.html

In the Performance section, there are four graphs. Each one has:

4 ION, 8MB
8 ION, 16MB
16 ION, 32MB
24 ION, 48MB

I understand ION is I/O server node, but don't understand what is *MB.
Is it file size? Or, something else? n anyone comment?

Thanks in advance.
-charles