To explain it further, you are right that scheduled down time should only affect availability, not reliability. There is currently no way to register a scheduled down time to LCG account office. However, the collector is running at site (SLAC), and if the collector is down (like what we had in January), that will affect only reliability. Wei Yang | [log in to unmask] | 650-926-3338(O) > From: "Young, Charles C." <[log in to unmask]> > Date: Sun, 15 Feb 2009 06:28:38 -0800 > To: Wei Yang <[log in to unmask]>, > "[log in to unmask]" > <[log in to unmask]> > Subject: RE: January 2009 - Tier-2 Reliability and Availability Report > > Hi Wei, > > I guess Available is normalized to (effectively) 24 hours a day and 365 > days a week, without regard to planned down times, is that right? If we > factor out the planned outage, what would 64% become? Cheers. > > Charlie