We have a SQL server that we have backed up running a full backup manually (usual way,sqlfull.cmd), when the first scheduled log file backup ran we get the following message in the Activity Log Details.

2012-10-04-04.08 ANR2579E Schedule SQL-LOG-0400-AM-M-T-W-T-F-S in domain VAULT for node NODE00007 failed (return code 1204). (SESSION: 6825)

We are only backing up two sql databases, not the entire server for the customer, their own backup software is backing up the other databases.

Can't find this error ANR2579E (return code 1204) on here, having a google about i find that 1204 refers to a SQL lock, or not being able to perform a lock.

Anybody help ?