I started to see these next two alerts I set for myself. However, whereever I checked, there were plenty of spaces. They showed up around back end of some of the scheduled Tlog backups.
What else could cause this? Thanks!
spid58,Unknown,Could not allocate a new page for database 'tempdb' because of insufficient disk space in filegroup 'PRIMARY'. Create the necessary space by dropping objects in the filegroup<c/> adding additional files to the filegroup<c/> or setting autogrowth on for existing files in the filegroup.
spid94,Unknown,Could not allocate a new page for database 'TEMPDB' because of insufficient disk space in filegroup 'DEFAULT'. Create the necessary space by dropping objects in the filegroup<c/> adding additional files to the filegroup<c/> or setting autogrowth on for existing files in the filegroup.
I also saw: Version store is full. New version(s) could not be added. A transaction that needs to access the version store may be rolled back. Please refer to BOL on how to configure tempdb for versioning.