Re: Does C-ISAM support NFS ?

In article <335767BA.565C@esoc.esa.de>, Steen Retbool x2453 A238 fcsd/oad <sretboll@esoc.esa.de> writes >I am currently using C-ISAM version 7.1 on SUN/Solaris 2.4. >I am having a number of problems related to NFS (Network File >System): > >1. Very poor performance. The times it takes to read and write > is between 20 and 40 times slower when the physical C-ISAM > file is stored on a NFS compared to a local file system. > >2. Unpredictable errors when 2 processes are concurrently reading > and writing to the same CISAM file via NFS. I do not get any > such problems if the two processes are running on the local > machine where the physical C-ISAM file is stored. > >Does anyone know if C-ISAM properly support NFS ? > >Regards, Steen NO - it does not, locking does not work properly across NFS (either the protocol does not properly support locking or almost all implmenetations are broken, I am not sure which). -- David Williams