Windows Server 2008 x64 SP2.
Every time when Windows Server Backup job starts some errors appear:
=====
Log Name: Application
Source: Microsoft-Windows-Backup
Date: 2/21/2013 4:00:08 AM
Event ID: 518
Task Category: None
Level: Error
Keywords:
User: SYSTEM
Computer: XXX
Description:
Backup started at '2/21/2013 12:00:08 AM' failed as another backup or recovery is in progress. Please re-run backup.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Backup" Guid="{1db28f2e-8f80-4027-8c5a-a11f7f10f62d}" />
<EventID>518</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000000</Keywords>
<TimeCreated SystemTime="2013-02-21T00:00:08.164Z" />
<EventRecordID>825326</EventRecordID>
<Correlation />
<Execution ProcessID="2904" ThreadID="7980" />
<Channel>Application</Channel>
<Computer>XXX</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data Name="BackupTime">2013-02-21T00:00:08.096Z</Data>
<Data Name="ErrorCode">2155347991</Data>
<Data Name="ErrorMessage">%%2155347991</Data>
</EventData>
</Event>
=====
There is only one backup job (it was created with GUI):
=====
wbadmin enable backup
wbadmin 1.0 - Backup command-line tool
(C) Copyright 2004 Microsoft Corp.
The scheduled backup settings:
Volumes in backup: V1(C:),V2(F:),D2(D:),D1(E:)
Location to store backup: MSFT Virtual HD Multi-Path Disk Device
Times of day to run backup: 04:00
=====
The associated Task Scheduler job was not modified.
How can I get rid of this error?