¥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