We have similar situation few weeks ago.
One of our users visit some site, that frequently updates (few requests per second) so logs will grow very faster.
ps. MWG version 6 have much more free space (have another partitions) and such situation never happens.
I think you need to change setting for rotation and pushing logs.
IMHO, MWG 7.x has a ridiculously sub-optimal disk partitioning schema.
I am in the process of repartitioning all of our MWG systems so that they have a saner disk partitioning confiiguration. No doubt unsanctionad/unsupported by McAfee, but I don't have the time/energy to deal with things like subversion checkouts eating my file systems and the generic idiocy of the current disk schema.
Feel free to PM me if info about re-partitioning interests you. NOTE: I do not guarantee that any of my suggestions/recommendations will not result in sub-optimal results -- informaton suppied will be just that -- information, not recommendation.
This issue is related to a client machine gone wild. It's making tons of requests and generating a large volume of logs. So modifying the disk partitions would only mask the issue.
I do sympathize with the current disk partitioning schema being too small, I believe that should change in future versions (don't ask me when though). As such, I definitly would not recommend resizing the partitions.