Core Issue
It is possible there are some situations when Cisco Unity Servers run low on hard drive space. There are possibly different reasons for low hard drive space. One of main factors that cause this issue is possibly the Microsoft Exchange Mail Stores and various Loggings, which take place on the Cisco Unity Server.
Resolution
In order to resolve the issue, you need to run SQL commands at the command prompt in order to shrink the database. The procedure is similar to steps for shrinking database in Cisco CallManager, except you need to mention the correct database name/log:
osql -E
1> use ReportDB
2> go
1> backup log ReportDB with no_log
2> go
1> dbcc shrinkdatabase(ReportDB)
2> go
1>exit
Refer to What are the best practices to follow for the preservation of disk space on the Cisco Unity Server.
This document applies to Unity 2.x and above.
