Hi Bret,
One thing I forgot to mention: for my cumulative backup testing so far, I have been using same API calls as done for traditional incremental backups. For our product, we have basically two workflows: one is for full backup and one for incremental, and I have only modified the dump command (from "dump transaction" to "dump cumulative") for my testing.
I wonder whether this is causing the errors that I am seeing. Because incremental backups deal with transaction logs, and for cumulative backups, I guess there's Sybase ASE-specific internal book-keeping of changed pages.
Is there any document available on cumulative backups and API calls?
Thanks,
Ali