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pst file size recommendation

I am looking for some documentation on recommendations and possible issues with pst files of 1.5 Gb to 5.5 GB. I have mutiple business users using POP3 email and Outlook 2003. There are many intermittend hangups, etc that I would attribute to large pst files. The client wants some definitive documentation from Microsoft or other reasearch entities supporting this. Any help is appreciated.
Thanks
0
Derf238
Asked:
Derf238
1 Solution
 
Sourabh-ExcahngeCommented:
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gupnitCommented:
Hi,
PST Files can be as high as 20GB now. Still there are issues with large PST Files, as OST/PST when have large Inbox, it causes Performance issues as loads of memory is reuquired to load the Inbox.
Good reference, apart from what was provided above: http://support.microsoft.com/kb/296088http://support.microsoft.com/kb/304863
Thanks
Nitin Gupta (gupnit)
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Derf238Author Commented:
Thanks for your input.
Please note that I am using Outlook 2003 so the articles on the limits for 2000 do not apply.
Please also note that I am not interested in limiting the size of the pst files, I am interested in documenting, for my customer, the issues and possible performance problems directly related to pst files larger than 1.5 GB up to as large as 6GB. Thanks again in advance for your insight
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gupnitCommented:
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Derf238Author Commented:
Nitin - I think we're getting closer and, at first look, I was excited about the article. However, this article is about Outlook 2007. In the article it states, and I quote:
"Note When you perform the same operations in earlier versions of Outlook, the same performance problems do not occur if the .pst file or the .ost file is large."
So, unfortunately, I could not offer this article as proof of my point.
Does anyone know of any supporting documentation? Am I incorrect in suspecting large pst files for performance issues in Outlook 2003?
Thanks
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Debug-ExchangeCommented:
i think you are looking for this
http://technet.microsoft.com/en-us/library/cc535025.aspx
this article covers both outlook 2007 and 2003

thanks
Sam
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Derf238Author Commented:
Sam - this is a great article but does not address performance on large pst files.
I need documentation, statistics or best practices for PST file size to support my position with my client.
Thanks
0
 
gupnitCommented:
Hi,
The links provided are the best options you have.
As such with 2003 onwards, we can go far beyond 6GB that you are looking at. But the major factors would be:
  • Larger PST files take longer to search, causing Memory Utilization
  • Large OST/PST Inbox takes time to load causing Memory utilization and Outlook Hang
  • Management is diffcult and any loss due to corruption would mean more number of mails getting affected, if you do not have a backup.
Otherwise, you are ok to have 6GB PST Files.
Do let me know in case you need further inputs
THanks
Nitin Gupta (gupnit)
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Derf238Author Commented:
Nitin while answering my question did not offer any supporting documentation, which is what I need. I will split the points
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Derf238Author Commented:
I needed supporting documentation for the client.
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