Two questions. Cached mode and eseutil.

[undrcovr]

Im new to Exchange, can someone explain cached mode in detail please.

And Im running an offline defrag with eseutil on a 20GB priv1. How long does this take?!?! Its been running for an hour and a half and its only at 10%!

 

[58sniper]

cached mode reduces bandwidth utilization by storing a local copy of the mailbox on the client workstation. It also allows access to that local copy if the connection to the Exchange server is lost.

Sit back - it's going to be a while. Why was an offline defrag needed? That's rare.

Pat Richard, MCSE(2) MCSA:Messaging, CNA(2)

 

[undrcovr]

Because the priv1.edb file is over 20GB and they havent done a defrag in about 3 years.

 

[Zelandakh]

offline defrag removes white space
online reorganises data pages each night.

 

[58sniper]

The fact they haven't done a defrag in three years really means nothing. What do the 1221 events say in the application event log?

Pat Richard, MCSE(2) MCSA:Messaging, CNA(2)

 

[Zelandakh]

ok, what I meant (by inference) is that offline defrag is not really required except if you remove a load of users or emails.

 

[undrcovr]

We removed about 12 users last week. I ran eseutil and it generated an error at 98%. I wasnt aware that the default online defrag time is 1-5. The previous admin didnt know what he was doing and Im very new to Exchange so any tips are greatly appreciated.

 

[Zelandakh]

What error did you get? Anything in the event log?

 

[PaulGillespie]

Don't cancel the defrag. If you do you will be left with the temp files in the Bin folder and they can take up alot of space.

 

[undrcovr]

I didnt cancel it, it ended on its own. I took a screenshot of the error but now I cant find it... I remember the error saying -1108. When I get to work later, Ill check event logs.

 

[zbnet]

I wouldn't do an offline defrag just because I'd deleted 12 mailboxes. Just live with the white space in your store, it doesn't do any harm.

 

[58sniper]

And it'll get reused anyway.

Anything that takes your stores offline should be avoided unless there's a serious issue that needs to be immediately addressed.

Pat Richard, MCSE(2) MCSA:Messaging, CNA(2)