OOPS... mmbackup uses mmapplypolicy. Unfortunately the script "mmapplypolicy" is a little "too smart". When you use the "-N mynode" parameter it sees that you are referring to just the node upon which you are executing and does not pass the -N argument to the underlying tsapolicy command. (Not my idea, just telling you what's there.)
So right now, to force the parallelized inode scan on a single node, please just use the tsapolicy command with -N and -g. tsapolicy doesn't do such smart argument checking, it is also missing the nodefile, nodeclass, defaultHelperNodes stuff ... those are some of the "value add" of the mmapplypolicy script. If you're running the parallel version and with message level -L 1 you will see this message: [I] 2015-11-10@15:57:47.871 Parallel-piped sort and policy evaluation. 5 files scanned. Otherwise you will see this message: [I] 2015-11-10@15:49:44.816 Policy evaluation. 5 files scanned. But ... if you're running mmapplypolicy under mmbackup... a little more hacking is required.
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