I'm seeing an error I don't understand in the event log on a vCenter 5 server running on Windows Server 2008 R2 and which has the VC database hosted on a local instance of SQL Server 10.50.1600. The error is as follows:
Log Name: ADAM (VMwareVCMSDS) Source: ADAM [VMwareVCMSDS] Database Event ID: 2524 Level: Error User: ANONYMOUS LOGON
The Directory Server detected that the database has been replaced. This is an unsafe and unsupported operation.
User Action: None. Active Directory Lightweight Directory Services was able to recover the database in this instance, but this is not guaranteed in all circumstances. Replacing the database is strongly discouraged. The user is strongly encouraged to use the backup and restore facility to rollback the database.
A day or so after this error, I discovered I couldn't log into vCenter, with a warning getting logged every minute. That I managed to fix per this article.
Now I can log into vCenter but when I try to look at performance charts I just get "No data available" or "Performance data is currently not available for this entity." I've checked the VC database to ensure the
last_perf_time for the host is not in the future, and the host, vCenter server, and clients all have about the same system time. EDIT: Something, a reboot on the host maybe, seems to have fixed the chart issue for the time being.
The really strange thing here is that nothing has been done to the vCenter server or the DB for a couple of months, AD-LDS is never touched except by vCenter, and all was working until yesterday. If the database has been "replaced," vCenter did it by itself because I know nobody else did.
The SQL DB is used only by vCenter, plus the logs for a deployment of VMware View which we were testing a while back but never put into production. The whole thing is running on a VM (the host itself managed by the same vCenter). There are a couple unrelated server roles in the same VM but which are only used very, very lightly and don't involve MS SQL or AD-LDS.
Any insight into what might have caused these things to happen spontaneously? Anything else I should be looking at?