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We continue to add about 5TB of new data a week bringing the total size of LAT data at SLAC to 600TB (400TB Level 1 output, 180TB MC and 20TB reprocessed data). 4 new file 30TB servers arrived at SLAC on Monday and hopefully by the time you are reading this the first one will have been installed averting the need to store older data only on tape. Although the LAT data is all kept on raid arrays with multiple redundant drives we have also acquired an addition additional 250TB of tapes so that we can continue to keep all data backed up in case of unanticipated disk problems.
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A bittersweet tale: Navid will be leaving us at the end of November to take up a position in Earth Sciences at Goddard. He did his Masters with them and will carry on with a PhD. Navid has been a key player in our success to date and we can barely thank him enough for all he has done. Wish him the best... In the meantime, we will be trying to figure out how to fill his shoes. No easy task given the breadth and depth of contributions. He is doing a mind meld with confluence now. At least he will be around to answer questions! Sniff, |
SCons On the Way
(Joanne Bogart)
SAS is in the process of changing build systems from CMT to SCons. This has been going on a long time (first investigation was over two years ago!) and isn't done yet, but the end is nearly in sight. ScienceTools builds are already being generated with the new SCons Release Manager as well as the CMT Release Manager; GlastRelease will take a few months longer. Should you care? That depends on how you use SAS software. End users who use pre-built binaries will see at most small differences in set up procedures. Those who build from sources, e.g. because their platform is unsupported, will need to know something about how SCons works and how we've chosen to use it. Developers need the same kind of understanding of SCons machinery - the equivalent of requirements files, GlastPolicy package, and so forth - as they currently have for CMT, and may also benefit by learning about SCons analogs of MRvcmt and the CMT Release Manager web pages. Look for more information in a future Newsletter as this transition nears production and documentation becomes available.
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