EMC Unity fix
EMC Unity firmware brings a small change in its API output which prevent STOR2RRD 2.52 and olders working.
Download and applay this hot fix
Gunzip it and copy to /home/stor2rrd/stor2rrd/bin (755, stor2rrd owner, lpar2rrd on the Virtual Appliance)
-rwxrwxr-x 1 stor2rrd stor2rrd 96061 Jun 11 16:03 bin/unityperf.pl
If your web browser gunzips it automatically then just rename it: mv unityperf.pl.gz unityperf.pl
Assure that file size is the same as on above example
It will start work since then when it is all configured.