On 07.08.2003 16:06, Joshua wrote :
> Hi,
> Recently I have been working on setting up an NFS database server for
> some bioinformatics work, and one of the databases is very large
> (8.4GB). So far the only problem that I've had with this databse is
> when running "ls -l". The database generates an Input/Output error
> over NFS, but running "ls -l" locally works fine. I've tried changing
> the rsize and wsize for the mounted directory, but nothing seems to
> work. Normally I wouldn't care about such a small issue, but I like to
> monitor download progress over NFS using "watch ls -l", and the error
> causes problems with "watch". I'm also afraid that this might be a
> sign of a bigger underlying problem that will pop up when we go to
> scale up our operation. Any help/suggestions would be greatly
> appreciated.
>
> Thanks,
> Josh
>
> P.S. If anyone is interested in recreating this bug the database is
> nt, available by anonymous ftp from:
> ftp.ncbi.nlm.nih.gov/blast/db/FASTA/nt
> and I am running Debian Linux (Kernel 2.4.21) on an UltraSPARC 60. The
> NFS options I'm using are:
> rsize=8192,wsize=8192,rw,soft,bg

If you are using NFS version 3 you can increase both rsize and wsize to 64k
That will result in less overhead transfering large files


Frank