Factors affecting ANALY_MWT2 performance. MWT2 team August 28, 2012. Factors to check. Storage servers Internal UC network Internal IU network WAN network Effect of dCache -locality caching versus WAN direct access IU analysis nodes specifically. Individual storage servers.
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August 28, 2012
An hour sample.
See IO nicely spread over servers, noobvious bottlenecks or hot spots
Over past week.
More less the same- good spread,
100-300 MB/s continuously per system
This link is now 2x10G
Last week’s IO to UC: green is usually FTS transfers from BNL, blue IO mostly to IU
but some to UIUC. This is for one of the 10G NICs from the 6509 to campus core (there is a second NIC to campus core, and the bonded plot, neither of which I can findin our cacti hierarchy at the moment)
This picture does not show connectivity to the other MWT2 sites;
to UC, the connection is through MREN currently
There are 100 Gbps links to Chicago available – though not all the way to UIUC and UC
dCache-locality was turned
circa 8/6/2012 (~ Week 31)