Catching up in the thread, but has anyone suggested to eliminate the PST from the AV real-time scanner? Sam
-----Original Message----- From: Michael B. Smith [mailto:[email protected]] Sent: Wednesday, October 21, 2009 4:44 PM To: NT System Admin Issues Subject: RE: Outlook 2007, constant hard disk thrashing. Sorry, it isn't that simple. Unfortunately. It depends on your trust and investment in the new Exchange 2010 features. So...if you go whole hog Exchange 2010, a HA solution looks like this: DAG with 2 copies real-time and a copy lagged by 7-14 days In THAT case (at least two DAG copies and a lagged copy in case of logical DB corruption) MSFT says that the total DB size of a mailbox database can go up to 2 TB (maximum recommended size). Otherwise, Exchange 2007 limits apply: 1] 200 GB with 2 copies in the DAG and regular VSS backups 2] 100 GB with 1 copy of the mailbox database and regular VSS backups Streaming backups are completely gone. ________________________________________ From: Matthew W. Ross [[email protected]] Sent: Wednesday, October 21, 2009 5:38 PM To: NT System Admin Issues Subject: RE: Outlook 2007, constant hard disk thrashing. That's a recommended Maximum of 2TB per user, or overall? Just curious. --Matt Ross Ephrata School District ----- Original Message ----- From: Michael B. Smith [mailto:[email protected]] To: NT System Admin Issues [mailto:[email protected]] Sent: Wed, 21 Oct 2009 14:30:48 -0700 Subject: RE: Outlook 2007, constant hard disk thrashing. > To ASB's point.... PST != OST. > > A PST is purely a Outlook object. > > A OST is both an Outlook and an Exchange object. (Although, I can > assure you, Exchange wishes for a different format - but that's > neither here nor > there.) > > Today, I consider 5 GB trivial. If you want to talk to me about a 5 TB > database, then I might consider putting it on a dedicated partition. > > FYI: For Exchange 2010, Microsoft recommends a maximum mailbox > database of 2 TB; but supports mailbox databases up to 64 TB. > > [[ Yes, you read that right - 64 TB. ]] > > ________________________________________ > From: Ben Scott [[email protected]] > Sent: Wednesday, October 21, 2009 5:03 PM > To: NT System Admin Issues > Subject: Re: Outlook 2007, constant hard disk thrashing. > > On Wed, Oct 21, 2009 at 3:20 PM, <[email protected]> wrote: > > This has nothing to do with Exchange, at least as it pertains to PSTs. > > Well, since Outlook is the native Exchange client, and since Outlook > 2003 and later prefer to have an OST going all the time ("Cached > Mode"), it does have *something* to do with Exchange. ;-) > > It perhaps also has something to do with NTFS's rather poor handling > of fragmentation, but to be honest, if I've got a 5 GB database file, > I'd prolly want that on its own partition no matter what OS or > filesystem I was using. > > -- Ben > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ > <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ > <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
