we upgraded our 3 primary servers to sles 11.1 + zcm 11.2.

We wonder why our ZPM server has much more content in the
directory. It has around 25 GB.
But the other primaries ZCM, ZCC have around 4 GB.

2 Questions on that:

a) How can we check if the servers have replicated correctly.
b) Is this a normal difference between zpm and other primaries? Perhaps because of patches?

Note that we have not yet upgraded the zpm server to sles 11.1 because we fear we could lose content (difference from 25 to 4 GB).

Any help on this would be much appreciated.