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size limitation
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size limitation - 13.Feb.2004 9:02:00 PM
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jcvitale
Posts: 43
Joined: 13.Oct.2003
From: nyc
Status: offline
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to all Exchange admins,
i have a general question as to the size of a mailbox when it is getting to large.
users have a size of 800 megs.
is there a limitation of the entire mailbox database for the entire company.
is this getting into a dangerous area.
do companies set limits on users mailbox sizes and what would a reasonable number be.
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RE: size limitation - 16.Feb.2004 4:13:00 PM
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Henrik Walther
Posts: 6835
Joined: 21.Nov.2002
From: Copenhagen, Denmark
Status: offline
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Hi Jeff,
If you're company use the Exchange 2000 standard version, then yes there's a database size limit of 16 GB, if you use Exchange 2000 Enterprise then don't worry.
But in general it's good practice to set mailbox limits, but the limit size depends on several factors such as disk space available, number of users etc.
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RE: size limitation - 17.Feb.2004 4:27:00 PM
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jcvitale
Posts: 43
Joined: 13.Oct.2003
From: nyc
Status: offline
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thank you so much for the information on this. another question, is there a limitation on an individual users mailbox size. i heard that it is 2 gigs but not sure.
also, the server that i have is
Windows 2000 Server Service Pack 4 (build 2195)
1266 megahertz Intel Pentium III (2 installed)
32 kilobyte primary memory cache
512 kilobyte secondary memory cache
c: (on drive 0) 31.45 GB 27.65 GB free
d: (on drive 0) 115.30 GB 61.58 GB free
m: (on drive 0) 115.30 GB 61.58 GB free
there are only 17 users, so i think that a mailbox size of 700 plus megs is a little much, especailly in regards to maintanence.
please let me know what you think
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RE: size limitation - 17.Feb.2004 8:50:00 PM
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Henrik Walther
Posts: 6835
Joined: 21.Nov.2002
From: Copenhagen, Denmark
Status: offline
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Hi again,
The 2 GB limit is for .pst files, but with the new .pst file format introduced with Outlook 2003 the .pst files are unicoded which means they can be over 20 GB's.
The 2 GB limit doesn't apply to Exchange based mailboxes, but 700 MB for an Exchange mailbox is quite a lot, I suggest you set limits to around 200-300 MB (max). Even though you got the disk space available now, you never know what will happen in the future.
Read more about settings limits in below MS KB:
319583 - HOW TO: Configure Storage Limits on Mailboxes in Exchange 2000
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RE: size limitation - 18.Feb.2004 3:58:00 PM
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jcvitale
Posts: 43
Joined: 13.Oct.2003
From: nyc
Status: offline
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thank you so much for the info you have given me so far. that is exactly what i needed and was looking for.
another question though, :
what would happen if i added another server to my domain as an exchange server. the reason that i am doing this is to break up the amount of space so some larger mailboxes can move over to the new server and have more room to share the 16 gigs of space that is the limitation. this would give me 32 gigs of space and allow me to give the people with large mailboxes more room.
let me know what you think about this..
thanks,
jeff vitale
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RE: size limitation - 18.Feb.2004 10:05:00 PM
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jcvitale
Posts: 43
Joined: 13.Oct.2003
From: nyc
Status: offline
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so in the enterprise edition, i will be able to seperate out the big mailboxes from the small ones into different mailbox stores. is there a limitation on the mailbox stores.
wouldn't this be the same as having 2 standard servers with the 16 gig limit and have a few big users on the one server and the rest small and medium on the other server.
primarily worried about performance and the fact that i do not want to crash
thanks again
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RE: size limitation - 18.Feb.2004 10:24:00 PM
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Henrik Walther
Posts: 6835
Joined: 21.Nov.2002
From: Copenhagen, Denmark
Status: offline
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Yes you will be able to create a Mailbox Store for each type of user.
2 Standard servers databases would in total have a limit of 32 GB, Enterprise doesn't.
Instead of buying a new server, use the money on some extra RAM and if possible a faster CPU. Or if you're budget allows it, buy a new fast server and throw Enterprise on it, then decommsion the Standard server.
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RE: size limitation - 18.Feb.2004 10:52:00 PM
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jcvitale
Posts: 43
Joined: 13.Oct.2003
From: nyc
Status: offline
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so when i am in exchange manager i should have the tree of mailbox stores for
large, medium, small users. how big can the mailbox store become, and this is primarily because a few users let their mailbox to get to the size of 750 megs. i know that it is too big, but when i say that it is not good for the system or we need to clean up the mailboxes, i catch a ton of heat from them.
if i buy a new server, it would cost only around 3000-5000 fora new dell pweredge 1750 with extended harddrive and a few othe bells and whistles.
if i just buy more RAM or a faster CPU would that help?
in my eyes as well as the budgets eyes the new server, and enterprise is way too much to try and accomodate only a efw users wouldn't you agree
thanks again for all your help on this
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RE: size limitation - 23.Feb.2004 10:07:00 PM
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uemurad
Posts: 5485
Joined: 7.Jan.2004
From: California, USA
Status: offline
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Jeff,
To summarize, Standard Exchange allows you to have a single Store up to 16GB. Enterprise Exchange allows you to have multiple Stores of any size. You can split up the users any way you wish.
With Enterprise, you are only limited by the disk space you have available on that server.
Finally, some words of wisdom when setting mailbox size limits. Setting the Issue warning to whatever you want is fine. Some people will get annoyed, but that's really all the warning is meant to do. Setting a limit to prohibit send is okay to do as well. It will cause people to complain because a message can't be sent, but that's when you calmly explain why. Tell them that when the Store reaches a particular size Email shuts down (I've had this happen). In my experience it's best to *never* set a limit for Prohibit send and receive because that will bounce messages. If you deal with the outside world you don't want to give the impression that you've closed up shop.
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RE: size limitation - 24.Feb.2004 8:41:00 PM
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atguilmette
Posts: 401
Joined: 4.Mar.2003
From: Southfield, MI
Status: offline
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I generally don't let users get mailboxes over 100mb. Since many of our users access mail remotely (over VPNs or OWA), larger mailboxes can really slow things down.
I would recommend going to the Enterprise version of Exchange 2000 over buying another server. The software upgrade will be less costly, both in the short and long runs. You only have to pay for the license and reinstall the software; if you buy another server, you need more hardware, more configuration time, AND another license.
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