Great article explaining how fragmentation on incorrectly NTFS affects Exchange brought to our attention on MSExchange Team blog Today.
Recently we have been seeing some gnarly performance issues in Exchange 2007 along with an added splash of database operation failures. This doesn't sound enticing at all, but this blog post is going to discuss what these issues are and how to resolve them. This post is targeted mainly for Exchange 2007, but you can also apply the same methodology to Exchange 2010 as this is where the original problem was seen.
Before going in to this, here is a highlight of some of the issues that you may see:
- Databases failing with an Out of Memory condition
- Extremely slow log replay times on CCR/SCR replica copies (High replay queue lengths)
- High amount of split I/O's occurring on any given LUN/Volume.
- Slowly rising RPC requests until the Information Store service goes unresponsive
Read more at source: http://blogs.technet.com/b/mikelag/archive/2011/02/09/how-fragmentation-on-incorrectly-formatted-ntfs-volumes-affects-exchange.aspx
Do you want to use POP3 with BPOS? Not a problem, check this video out http://blogs.technet.com/b/msonline/archive/2011/02/14/enable-pop3-in-microsoft-exchange-online-mailboxes.aspx
In the latest BPOS support video, we explore enabling POP3 in Microsoft Exchange Online Mailboxes. POP3 stands for Post Office Protocol 3, and is the latest version of the standard protocol to receiving email. POP3 is found in most popular email offerings including Outlook. By default POP3 is not enabled for Microsoft Online users, and this support video will provide an overview on how to enable and disable the POP3 protocol for mailboxes.