VCSA 6 - /dev/mapper/seat_vgseat filling up

Hi

Fresh install of vcsa 6 into an existing multi-site SSO from 5.5u2 (now SSO 6).

The seat_vgseat volume keeps filling up.  It has filled 20GB in roughly 36 hours.  Other volumes seem fine (<50% usage).

Any ideas?

My environment consists of 2 sites, 2x vcsas and 2x psc appliances.  There is also a Windows vCenter 6 with embedded PSC (upgraded from 5.5u2) in the same site as the offending vcsa while i finish migrating.  VCSA in the other site is not exhibiting this problem (vg_seat vol is c. 200MB usage).

I'm guessing there is an influx of events coming into the VCSA and filling the volume?

If so - can I get some visibility into what might be generating the events?  (or stats or tasks?)

Any advice?

Thanks.

D