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For Info...it appears its not currently possible to use DPM on our setup here: On Saturday 06 August 2005 09:32, you wrote: > On Fri, 5 Aug 2005, noreply [Alex Martin] wrote: > > My attempt to add a fairly large (~20TB) filesystem to dpm > > results in the following error: > > > > [root@se01 local]# dpm-addfs --pool Volatile --server se01 > > --fs /pool/data/lcg > > dpm-addfs Volatile se01 /pool/data/lcg: Value too large for defined > > datatype > > We use statfs/statvfs to get the capacity and the free space on > the filesystems. Your filesystem is too big and the system call > returns EOVERFLOW. > We have to use statfs64/statvfs64. > So we have to add this method to RFIO and modify DPM to use it. > This is not a one hour job (much more). > We will certainly do it, but later. > However having a huge filesystem like this does not fit very well > with the DPM architecture. The DPM manages filesystems distributed over > many servers and will try to optimize the filesystem selection > according to the I/O load (or even network load). Having a huge > filesystem like this in the DPM means that the DPM cannot optimize > anything and must rely on the filesystem optimization... > May be it's the solution for the future. > Jean-Philippe -- ------------------------------------------------------------------------------ | | | Dr. Alex Martin | | e-Mail: [log in to unmask] Queen Mary, University of London, | | Phone : +44-(0)20-7882-5033 Mile End Road, | | Fax : +44-(0)20-8981-9465 London, UK E1 4NS | | | ------------------------------------------------------------------------------