On Mar 26, 2007 11:21 +0100, Rui Ramos wrote: > lmc -m config.xml --add lov --lov lov-home --mds mds-polo3 --stripe_sz > 1048576 --stripe_cnt 0 --stripe_pattern 0 > # VOs software space > lmc -m config.xml --add lov --lov lov-soft --mds mds-polo3 --stripe_sz > 1048576 --stripe_cnt 0 --stripe_pattern 0 > # Volatil space for DPM > lmc -m config.xml --add lov --lov lov-tmp --mds mds-polo3 --stripe_sz 1048576 > --stripe_cnt 0 --stripe_pattern 0 > # DPM space > lmc -m config.xml --add lov --lov lov-dpm --mds mds-polo3 --stripe_sz 1048576 > --stripe_cnt 0 --stripe_pattern 0
> Now. if i go to one of the partition lets say '/local/home' and create some > file, this file is created also in the other devices.! > > The only think i can think of is, that i use the same mds for each lov. Do i > have to create a MDS for each lov ? You need to configure a separate MDS device for each LOV. It's very interesting that this even works, however. Essentially, the same MDS is storing the metadata for all of the filesystems, and files can be stored in different pools of OSTs based on the mountpoint/LOV where it was created in. However, this will almost certainly have bad consequences for MDS recovery because it won't be storing the per-OST information correctly. Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc. _______________________________________________ Lustre-discuss mailing list [email protected] https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
