I haven't had real good luck with offline cache. It seems I'm always running into user filling their mailbox and when I check the folder size (local vs. server) there is difference. Could be that mix of Exchange/Outlook/iPhone we have running around here, but I haven't seen it work flawlessly yet.
.02 -Paul From: [email protected] [mailto:[email protected]] On Behalf Of Damien Solodow Sent: Tuesday, January 14, 2014 9:50 AM To: [email protected] Subject: [Exchange] RE: OST files PST and OST files are quite different animals. The main issue with PST files was their tendency to corrupt when they got past 2gb but that was addressed with the Unicode PST format introduced with Outlook 2003. They are still an issue for other reasons (not supported on file shares and thus vulnerable to loss, very hard to discover/control,etc). OST files on the other hand are much less of an issue as it's just an offline cache of the Exchange mailbox. They should live on a local drive to the user workstation (do NOT put them on a mapped drive) but are otherwise pretty forgetablle with Outlook 2003+. They occasionally get corrupt (usual symptom is Outlook stops updating) but you can just delete the file and let Outlook rebuild it. Using cached mode will take a significant burden off your Exchange servers. DAMIEN SOLODOW Systems Engineer 317.447.6033 (office) 317.447.6014 (fax) HARRISON COLLEGE From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of David McSpadden Sent: Tuesday, January 14, 2014 10:44 AM To: [email protected]<mailto:[email protected]> Subject: [Exchange] OST files MS PSS is recommending to me to set cached mode on my users and utilize OST files? I thought I had heard PST and OST files are bad, very bad. Would like to be educated on the Pros and Cons of turning Cached Mode on. It is currently off via Group Policy. This e-mail and any files transmitted with it are property of Indiana Members Credit Union, are confidential, and are intended solely for the use of the individual or entity to whom this e-mail is addressed. If you are not one of the named recipient(s) or otherwise have reason to believe that you have received this message in error, please notify the sender and delete this message immediately from your computer. Any other use, retention, dissemination, forwarding, printing, or copying of this email is strictly prohibited. Please consider the environment before printing this email.
