Hi, I tried the pvfs2-cp command and here are the results: ---------------------------------------- $ pvfs2-cp -n 1 /home/mdl/patrick/pvfs2/oneserver /home/mdl/patrick/pvfs2/s1 $ pvfs2-viewdist -f /home/mdl/patrick/pvfs2/s1 dist_name = simple_stripe dist_params: strip_size:65536
Metadataserver: tcp://aum14:7000 Number of datafiles/servers = 3 Datafile 0 - tcp://aum14:7000, handle: 6917529027641081849 (5ffffffffffffff9.bstream) Datafile 1 - tcp://aum15:7000, handle: 9223372036854775300 (7ffffffffffffe04.bstream) Datafile 2 - tcp://aum13:7000, handle: 4611686018427387652 (3fffffffffffff04.bstream) ---------------------------------------- $ pvfs2-cp -n 2 /home/mdl/patrick/pvfs2/oneserver /home/mdl/patrick/pvfs2/s2 $ pvfs2-viewdist -f /home/mdl/patrick/pvfs2/s2 dist_name = simple_stripe dist_params: strip_size:65536 Metadataserver: tcp://aum14:7000 Number of datafiles/servers = 2 Datafile 0 - tcp://aum14:7000, handle: 6917529027641081848 (5ffffffffffffff8.bstream) Datafile 1 - tcp://aum13:7000, handle: 4611686018427387397 (3ffffffffffffe05.bstream) ---------------------------------------- It seems that the striping does not work only when we specify *one* server as input (but apparently works if you specify anything other than one). Since I have only 3 I/O servers configured currently, this is all I could try. I also tried my program with 2 I/O servers and it worked as shown above. Thanks and Regards, Christina. On Wed, Jul 15, 2009 at 2:42 PM, Rob Latham<[email protected]> wrote: > On Wed, Jul 15, 2009 at 02:26:07PM -0400, Christina Patrick wrote: >> Hi Rob, >> >> I am willing to try it out. However, I don't know how to do so using >> pvfs2-cp. >> Sorry to trouble you, but could you please tell me how to do it. > > No problem. Find some large-ish file (about 1MB should do) and copy > it to your pvfs volume like so: > > /usr/local/pvfs2/bin/pvfs2-cp -n 1 <src> /pvfs/mountpoint/dir/<dest> > > and try that also with a few different values of -n > > ==rob > -- > Rob Latham > Mathematics and Computer Science Division > Argonne National Lab, IL USA > _______________________________________________ Pvfs2-developers mailing list [email protected] http://www.beowulf-underground.org/mailman/listinfo/pvfs2-developers
