I ran across this error starting on 6/4/2011 and have been unable to find the root of the problem. In our environment, we have a DPM 2010 server dedicated to backing up all our SQL envrionment (about 45 SQL Servers total). All of the SQL environment is backing up fine except for a SQL Cluster Application. This particular SQL Instances is part of a 6 node failover cluster with 6 SQL Instances distributed amongst them. The other 5 SQL instances in the cluster are backing up fine; only one instance is failing. The DPM Alerts section shows this error when attempting to do a SQL backup of one of the databases on this SQL instance:
Affected area: KEN-PROD-VDB001\POSREPL1\master
Occurred since: 6/11/2011 11:00:56 PM
Description: Recovery point creation jobs for SQL Server 2008 database KEN-PROD-VDB001\POSREPL1\master on SQL Server (POSREPL1) - Store Settings.ken-prod-cl004.aarons.aaronrents.com have been failing. The number of failed recovery point creation jobs =
4.
If the datasource protected is SharePoint, then click on the Error Details to view the list of databases for which recovery point creation failed. (ID 3114)
The DPM job failed for SQL Server 2008 database KEN-PROD-VDB001\POSREPL1\master on SQL Server (POSREPL1) - Store Settings.ken-prod-cl004.aarons.aaronrents.com because the SQL Server instance refused a connection to the protection agent. (ID 30172 Details:
Internal error code: 0x80990F85)
More information
Recommended action: This can happen if the SQL Server process is overloaded, or running short of memory. Please ensure that you are able to successfully run transactions against the SQL database in question and then retry the failed job.
Create a recovery point...
Resolution: To dismiss the alert, click below
Inactivate alert
I have checked the cluster node this particular SQL instance is running on using Perfmon and the machine is nowhere near capacity on CPU, memory, network, or Disk I/O. I have failed this SQL Application to another node in the cluster and receive the same error (this other node has another clustered SQL application on it that is actively running as well as backing up fine). The only thing that I am aware of that has changed is that we installed SP2 for SQL 2008 about 2 weeks prior to when the failures started to occur. However, we updated all six clustered SQL Instances at the same time and only this one is having this issue so I don't believe that caused the problem. We are running SQL 2008 SP2 (version 10.0.4000.0) on all clustered instances along with DPM 2010 (version 3.0.7696.0) on this particular DPM server that has the issue.
One last thing, I have also noticed errors in the event log pertaining to the same SQL backups that are failing (but the time stamps are not concurrent with each backup attempt):
Log Name: Application
Source: MSDPM
Date: 6/13/2011 1:09:12 AM
Event ID: 4223
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: KEN-PROD-BS002.aarons.aaronrents.com
Description:
The description for Event ID 4223 from source MSDPM cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.
If the event originated on another computer, the display information had to be saved with the event.
The following information was included with the event:
DPM writer was unable to snapshot the replica of KEN-PROD-VDB001\POSREPL1\model. This may be due to:
1) No valid recovery points present on the replica.
2) Failure of the last express full backup job for the datasource.
3) Failure while deleting the invalid incremental recovery points on the replica.
Problem Details:
<DpmWriterEvent><__System><ID>30</ID><Seq>1833</Seq><TimeCreated>6/13/2011 5:09:12 AM</TimeCreated><Source>f:\dpmv3_rtm\private\product\tapebackup\dpswriter\vssfunctionality.cpp</Source><Line>815</Line><HasError>True</HasError></__System><DetailedCode>-2147212300</DetailedCode></DpmWriterEvent>
the message resource is present but the message is not found in the string/message table
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="MSDPM" />
<EventID Qualifiers="0">4223</EventID>
<Level>2</Level>
<Task>0</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2011-06-13T05:09:12.000000000Z" />
<EventRecordID>68785</EventRecordID>
<Channel>Application</Channel>
<Computer>KEN-PROD-BS002.aarons.aaronrents.com</Computer>
<Security />
</System>
<EventData>
<Data>DPM writer was unable to snapshot the replica of KEN-PROD-VDB001\POSREPL1\model. This may be due to:
1) No valid recovery points present on the replica.
2) Failure of the last express full backup job for the datasource.
3) Failure while deleting the invalid incremental recovery points on the replica.
Problem Details:
<DpmWriterEvent><__System><ID>30</ID><Seq>1833</Seq><TimeCreated>6/13/2011 5:09:12 AM</TimeCreated><Source>f:\dpmv3_rtm\private\product\tapebackup\dpswriter\vssfunctionality.cpp</Source><Line>815</Line><HasError>True</HasError></__System><DetailedCode>-2147212300</DetailedCode></DpmWriterEvent>
</Data>
<Binary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inary>
</EventData>
</Event>
Any help would be greatly appreciated!