Been getting this on a single database, that has four copies. Been driving me nuts and the error has no real explaination and I cant get rid of it.
So yesterday bit the bullet and moved 366.46GB from 147 mailboxes off to other databases. Interesting in that it would only use 3 of 5 CAS servers.
Anyway, time to toast the database and recreate it, but check it out, 546, 923 log files ;-)