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Hi Wen, You can't do this the way you have set it up. The servers control which paths are stageable not the manager. If you want some managers to allow staging and some not, you need to run overlay clusters. That is you have two xrootd clusters that are identical but one cluster affiliates with a particular set of managers and has stageable paths and the other cluster (which sees the same space) affiliates with another set of managers but does not allow staging. As for the meta-manager question. The meta-manager is meant to be used for global clustering of distributed clusters. The manager/supervisor scheme is the only supported mechanism for clustering at a local level. Andy ----- Original Message ----- From: "wen guan" <[log in to unmask]> To: "Andrew Hanushevsky" <[log in to unmask]> Cc: <[log in to unmask]> Sent: Tuesday, August 24, 2010 2:10 AM Subject: Re: Is it possible to use more than 64 servers in xrootd staging pool > Hi Andrew, > > Thanks for the information. Can I use meta manager instead of > supervisor? > > Below is my cfg. If I use atlas-bkp2 to read a file which is in > c170~c199, xrootd will try to stage in this file. But I don't want it > to stage in this file, I want it to read the file from c170~c199. What > do I need to update? > > http://wisconsin.cern.ch/~wguan/xrdcluster.cfg > http://wisconsin.cern.ch/~wguan/xrdclusterd > > > Thanks > Wen > > On Tue, Aug 24, 2010 at 4:00 AM, Andrew Hanushevsky <[log in to unmask]> > wrote: >> Hi Wen, >> >> I'm not sure I completely understand the question. It is always possible >> to >> have more than 64 servers as long as you have the supervisors to support >> them. Any or all of those servers can be designated as staging servers. >> So, >> the answer is yes assuming you are asking the question I think you are. >> >> Andy >> >> ----- Original Message ----- From: "wen guan" <[log in to unmask]> >> To: <[log in to unmask]> >> Sent: Sunday, August 22, 2010 7:25 AM >> Subject: Is it possible to use more than 64 servers in xrootd staging >> pool >> >> >>> Hi, >>> >>> I tested to setup a xrootd staging pool using more 64 machines. It >>> seems xrootd tries to staging the file from backend pool if the file >>> is in supervisor. Is it possible to use more than 64 servers in xrootd >>> staging pool? >>> >>> Thanks >>> Wen >>> >> >> >