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Hi Steve, Did you see John’s response earlier? The suggestion is "an LHCb SAM client bug and not a site issue”. This will be checked and you will likely want to get a revised figure calculated. Thanks, Jeremy > On 7 Dec 2016, at 22:02, sjones <[log in to unmask]> wrote: > > Hi Jeremy, > > On 2016-12-07 16:52, Jeremy Coles wrote: >> Please could: RHUL, Glasgow and Liverpool send me some brief text on >> the difficulties encountered during the month. > > There were no significant difficulties in November at Liverpool regarding availability and reliability prior to a power cut in late November that wiped out our ARC/Condor CE, but we recovered within 6 hours or so. Thus we did practically a full month of work at near 100% reliability & availability. > > My figures suggest we made 6.3 million hs06 hours of work for lhcb in Nov, which is indicative of (say) 99% uptime. It would not be possible if we were up only 33% of the time. I'll check this in the morning but this looks like a serious measurement error to me. > > To do that, I need to know; what is the basis of the 33% measurement, and who is responsible for making it? > > Cheers, > > Ste