Slow performance in some databases after Exchange Server 2010 is running continuously for at least 23 days
Content provided by Microsoft
Applies to: Exchange Server 2010 Service Pack 3Exchange Server 2010 EnterpriseExchange Server 2010 Standard
Assume that you create some mailbox databases in an environment that has Update Rollup 1 for Microsoft Exchange Server 2010 Service Pack 3 (SP3) installed. Exchange Mailbox servers are running continuously for at least 23 days. In this situation, you experience slow performance in some databases. Additionally, it takes longer than expected to view mailboxes by using Microsoft Outlook, Outlook Anywhere, or Outlook Web App (OWA).
Note You can use database counters in Performance Monitor to monitor the performance of databases. For more information about database counters, go to the following Microsoft website: