¥Jan 2004: decision to upgrade CLON
cluster to satisfy EG3 run requirements
¥Feb - Jun 2004: clon10 performance
tests; drops in data rate were observed in long-running tests, and
big data rate fluctuations observed as well; no explanations were received from
Sun
¥Jun - Aug 2004: Xeon server from CC
and v880 sparc server from Sun were tested; Xeon works as
expected, performance is good; v880 performance was better then on clon10 but same
problems were observed
¥Sep - Oct 2004: received v40z from
Sun for testing; machine shows good performance, no any
indications of previously observed problems
¥Nov 2004: CLAS CODA tests completed
on both Xeon and Opteron machines, 32-bit Solaris is the only OS where CODA
runs without any problems; decision to buy intel-style servers;
Xeon vs Opteron discussion
¥Nov - Dec 2004: two quad servers
(Xeon and Opteron) received and installed under 32-bit Solaris
9
¥Dec 2004: Opteron-based SunFire v40z
server under Solaris 9 is used as Event Building machine in
EG3 run
¥Jan - Oct 2005: CLAS CODA redesign
for multiplatform support
¥Aug 2005: decision to replace RAID
system
¥Oct 2005: new RAID system received
¥Dec 2005: third server (X4200)
received
¥Nov 2005 - Feb 2006: servers OS
installation, RAID configuring, CLAS CODA testing
¥Feb 2006: project completed, EG4 run
started using new CLON cluster