Hi Jerome, On Mon, Feb 28, 2005 at 11:24:18AM -0500, Jerome LAURET wrote: > I beleive we asked how to do that at some point (hide > the path arranegement) except that we could not figure out on how > to mix /home and /data into a single substitution. Your case of > oss.localroot /kanga and oss.remoteroot /kanga or /xrootd at SLAC > ar a bit too convenient. Can we trick olb with soft-link or there > is a simple syntax which can take care of all /data + /home (the > path afterward is all and the same) ?? I guess there is nothing special to differentiate the 4 partitions {/data0, /data1, /data2, /home}? i.e. all files can in principle go on any of the 4 partitions? AFAIK, there is no simple directive or soft link trick for that. The best bet is the cache filesystem, see the mps/cache-filesystem doc: http://xrootd.slac.stanford.edu/doc/mps_config/mps_config.htm What currently manages the data on those partitions? Has it just been statically placed there or is it being actively managed/staged by something? (SRM?) Pete > Peter Elmer wrote: > > > Hi Pavel, > > > >On Sun, Feb 27, 2005 at 01:05:46PM +0100, Pavel Jakl wrote: > > > >>we are using in our conf files export multiple directories and all data > >>from these directives are accessible: > >> > >>xrootd.export /data0 > >>xrootd.export /data1 > >>xrootd.export /data2 > >>xrootd.export /home > > > > > > Hmm, you are probably right: perhaps this was something that Andy fixed > > at some point? I see Matt is using the xrootd version from ROOT 4.02-00 > >itself (i.e. 20041124-0752). What version are you running at BNL? > > > > Matt, could you try the latest "development" version 20050226-0852? This > >is a development version, but the one we are currently testing to become > >the next "production" version. > > > > (Unfortunately it looks like we got one of the intermediate development > >versions of the xrootd server itself into the production version of ROOT! > >It is no big deal to download and build the proper version of the server > >separately, but we'll need to be careful in the future to make sure only > >production versions of xrootd wind up in production versions of ROOT...) > > > > > >>I also enlose the log file from redirector where you can see, that files > >>(from /data1 and data2) are located and redirected to right node without > >>using cache file system. > >> > >>050227 12:14:22 28868 odc_Locate: user=starlib.782:12@rcas6002 > >>redirected to rcas6067.rcf.bnl.gov:1095 by xrdstar > >>path=/data2/starlib/reco/productionCentral/FullField/P02ge/2001/318/st_physics_2318037_raw_0012.MuDst.root > >>050227 12:14:22 28868 odc_Receive: Server: Received from > >>xrdstar.rcf.bnl.gov: 481 !try rcas6067.rcf.bnl.gov:1095 > >>050227 12:14:22 28868 odc_Locate: user=starlib.782:12@rcas6002 > >>redirected to rcas6067.rcf.bnl.gov:1095 by xrdstar > >>path=/data2/starlib/reco/productionCentral/FullField/P02ge/2001/318/st_physics_2318037_raw_0008.MuDst.root > > > > > > I guess the "/data2", etc. is left from your previous method of finding > >the files? In general we try to hide that from the user (since it is an > >internal detail of the server-side) with some combination of the cache > >filesystem and the use of the "localroot" directive. > > > > Pete > > ------------------------------------------------------------------------- Peter Elmer E-mail: [log in to unmask] Phone: +41 (22) 767-4644 Address: CERN Division PPE, Bat. 32 2C-14, CH-1211 Geneva 23, Switzerland -------------------------------------------------------------------------