Hi Rob, Thank you very much for your help,
Regards, Christina. On Wed, Jul 15, 2009 at 3:31 PM, Christina Patrick<[email protected]> wrote: > 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
