Then when are they flushed? There are specific event log entries for that. And who is flushing them? There are also event log entries for that. Don't forget to look into the crimson log.
I have seen that the removal of event logs (during the flush process) can cause a major I/O spike. It's generally easily correlated with the relevant event log entries. What have you done to look at performance? Normal perfmon could be pretty informational here. So could looking at resource monitor during the slowdown. From: [email protected] [mailto:[email protected]] On Behalf Of J- P Sent: Saturday, June 14, 2014 8:03 PM To: [email protected] Subject: RE: [Exchange] event 218 after backup i missspoke, the logs are flushed PRIOR to 9pm, not as of 9pm Jean-Paul Natola ________________________________ From: [email protected]<mailto:[email protected]> To: [email protected]<mailto:[email protected]> Subject: RE: [Exchange] event 218 after backup Date: Sat, 14 Jun 2014 19:48:51 -0400 NOT ALL the logs are flushed, the backup is set for 10 pm, and the logs are flushed as of 9 pm, (it's essentially retaining the logs from one hour prior to the backup) Jean-Paul Natola ________________________________ From: [email protected]<mailto:[email protected]> To: [email protected]<mailto:[email protected]> Subject: RE: [Eet forxchange] event 218 after backup Date: Sat, 14 Jun 2014 23:33:15 +0000 Do all the logs get flushed? From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of J- P Sent: Saturday, June 14, 2014 7:27 PM To: [email protected]<mailto:[email protected]> Subject: RE: [Exchange] event 218 after backup Yes, and judging by your question, I guess it should not be checked? Jean-Paul Natola ________________________________ Date: Sat, 14 Jun 2014 18:07:36 -0400 Subject: Re: [Exchange] event 218 after backup From: [email protected]<mailto:[email protected]> To: [email protected]<mailto:[email protected]> Do you have the full database with VSS option checked? On Jun 14, 2014 5:14 PM, "J- P" <[email protected]<mailto:[email protected]>> wrote: Hi all, I have an ex2013 , running on 2012hyper-v guest, after the backup of the databse completes, email stops working for some minutes, then this error is logged the copy of database 'DB_Name' on this server experienced a performance problem. Failover returned the following error: "There is only one copy of this mailbox database (DB_Name). Automatic recovery is not available.". For more detail about the failure, consult the Event log on the server for other storage and "ExchangeStoreDb" events. To humor myself I created a new DB moved a couple of mailboxes to it, and after the backup the same error was logged. This is single server setup, no DAG involved, using built-in windows server backup Any thoughts on why this only occurs after backup?
