What is the mpiformatdb command that you are running? /opt/BioBrew/NCBI/6.1.0/bin/mpiformatdb -f /home/bigcpuguest/mpiblast.conf -N 2 -i /home/bigcpuguest/ecoli.nt -o T -p F How much space is on /mnt/pvfs? 4.1G _________________________________________________________________ Find it on the web with MSN Search. http://search.msn.com.sg/