In perfdatasource querying for global snapshot failed with error 'the size limit for this '

Question

I received  scom alerts from two win 2k8 r2 servers , hosting exchange 2010 mailbox roles , the alerts came almost in same time from both servers ,
can I ignore those alerts
or can someone give a me a clue how can I troubleshoot those alert , please any help would be appreciated
In PerfDataSource, querying for Global Snapshot failed with error 'The size limit for this '
from Ops-mgmt logs 
Log Name:      Operations Manager
Source:        Health Service Modules
Date:          
Event ID:      10104
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:       server 1
Description:
In PerfDataSource, querying for Global Snapshot failed with error 'The size limit for this ' 
One or more workflows were affected by this.  
Workflow name: Microsoft.Windows.Server.2008.OperatingSystem.PercentMemoryUsed.Collection 
Instance name: Microsoft Windows Server 2008 R2 Enterprise  
Log Name:      Operations Manager
Source:        Health Service Modules
Date:          
Event ID:      10104
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:       server 1
Description:
In PerfDataSource, querying for Global Snapshot failed with error 'The size limit for this ' 
One or more workflows were affected by this.  
Workflow name: Microsoft.Windows.Server.2008.LogicalDisk.PercentIdle.Collection 
Instance name:  " edb file path "
Log Name:      Operations Manager
Source:        Health Service Modules
Date:          
Event ID:      10104
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:       server 2 
Description:
In PerfDataSource, querying for Global Snapshot failed with error 'The size limit for this ' 
One or more workflows were affected by this.  
Workflow name: Microsoft.Windows.Server.2008.NetworkAdapter.CurrentBandwidth.Collection 
Log Name:      Operations Manager
Source:        Health Service Modules
Date:          
Event ID:      10104
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:   server 2   
Description:
In PerfDataSource, querying for Global Snapshot failed with error 'The size limit for this ' 
One or more workflows were affected by this.  
Workflow name: Microsoft.ForefrontProtection.FPE.Server.PerformanceCollection.RealtimeScanMessageRate

Answer 1

Hi Blake , 
Thanks for your reply , I appreciate your help  ,
I didn't put the alert from scom console because they were same as the events ( same source )
Health Service Modules, I didn't want to spam
more :-)
also the two servers encountered the issue were mailbox servers and part of same DAG , it worth mention the alert were resolved
by Exchange 2010 Correlation Engine service 
http://blogs.technet.com/b/kevinholman/archive/2010/10/15/clustering-the-exchange-2010-correlation-engine-service.aspx
http://support.microsoft.com/kb/2592561
also the Opsmgmt logs are full of waring and error event like 2023 , 21402 ,  21403 , 1207 !!
Log Name:      Operations Manager
Source:        HealthService
Date:          
Event ID:      2023
Task Category: Health Service
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      server 1
Description:
The health service has removed some items from the send queue for management group "SCOM" since it exceeded the maximum allowed size of 15 megabytes.
1- alert from console >>
In PerfDataSource, querying for Global Snapshot failed with error 'The size limit for this '
One or more workflows were affected by this.
Workflow name: Microsoft.Windows.Server.2008.OperatingSystem.PercentMemoryUsed.Collection
Instance name: Microsoft Windows Server 2008 R2 Enterprise 
EventSourceName: Health Service Modules