MIT Tier-2 Report – April 16, 2025

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SiteReadiness: 100% SAM tests: 97.3% Over the last week we had a problems with some tests. The largest inefficiency comes from the HammerCloud tests. On Tuesday we restarted xrootd after adjusting read permissions for general CMS users. We had a report of some files in CephFS corrupted. At the moment we think that the corruption … Read more

Power restored

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We had an unplanned power outage that started on Saturday morning (~8am) and lasted for several hours. As a result our Tier-2 was not available to run jobs for 24 hours. CephFS storage system stayed online and was available right after the power outage was over and the network became available. Tape storage was fully … Read more

Major upgrades successfully completed

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Our center is finally fully back online after a period of major upgrades, which put our center into some kind of hibernation mode. During the downtime, we upgraded our infrastructure by replacing an old chiller with a completely new, more efficient one—bringing us closer to our goal of becoming a carbon-neutral site. The Chiller update … Read more

New MIT Tier-2 Web site

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Welcome to the new web site for our Tier-2 Computing center at MIT. We will use this web site to share with you all that is going on at the Tier-2 here at MIT. We are planning to have regular reports of what we do and stories on our big projects. The MIT Tier-2 center … Read more