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What would be your best recommendations on setting up storage groups?

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What would be your best recommendations on setting up s... - 17.Jan.2007 1:29:45 AM

Leontec

Posts: 48
Joined: 10.Aug.2006
Status: offline

What would be your best recommendations on setting up storage groups and mailbox databases for the following scenario?
High school. Around 800 students, 150 teachers, 50 administration staff. One Exchange Server 2007 Standard Editon has been setup.
50 Admin staff require very high level of email, group calendars and tasks activity during working hours (8am-5pm). Will be using MS-Outlook 2007 as they main mail client. Admin staff will use OWA outside the school only. Storage limits per admin user will be set to 10GB.
150 Teachers: Will be using MS-Outlook 2007 as they main mail client. 5GB mailbox limits. Moderate level of email, group calendars and tasks activity during working hours. Internal and external use of OWA.
800 Students. Outlook Web Access only. 1GB mail box limit. Heavy policy restriction on attachments, contents, etc, will be implemented.
I have two options to consider. Which option should I chose and why?
Option 1
First Storage Group
Admin Mailbox Database
Teachers Mailbox Database
Students Mailbox Database
Or
Option 2
First Storage Group
Admin Mailbox Database
Second Storage Group
Teachers Mailbox Database
Third Storage Group
Students Mailbox Database

Thanks in advance.

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RE: What would be your best recommendations on setting ... - 17.Jan.2007 12:05:23 PM

mark@mvps.org

Posts: 3947
Joined: 9.Jun.2004
From: Philadelphia PA
Status: online

The best practice is for a single mailbox store in a single storage group and have as many of them as you need. Your idea of multiple stores in a singe SG hasn't been a recommendation since Exchange 2003 came in.

Have as many stores as you need. Keep the store sizes down to a size that you can back up within your window (miltiple SGs = parallel backups) and more importantly within a size that you can restore inside your SLA.

Although, your post makes for interesting reading. You're planning on restricting users attachment capabilities heavily but are giving them 1GB mailboxes. That doesn't actually make sense. Teachers having 5GB mailboxes makes little sense given that they are "moderate".

Who have you been talking to about numbers?

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(in reply to Leontec)

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RE: What would be your best recommendations on setting ... - 17.Jan.2007 2:44:59 PM

mwatts

Posts: 71
Joined: 26.Jan.2006
Status: offline

That is a lot of space. If you have 800 students all with a gig of space that is going to be 800 gigs you have to back up and possbily restore. That could take a great deal of time. Not to mention the extra space you need for transaction logs, full text indexing, and LCR if you decide to implement it.

Sounds like you have a very large SAN :)

But as for your question you want option 2 one storage group per database. granted this is an exact opposite from EX2K3 but it is the new preffered method.

However with you using EX2K7 standard edition you are limited to 5 databases and 5 storage groups. So I would probably split the students account up into a A-M database/storage group and a N-Z database/storage group to reduce your backup/restore time.

(in reply to mark@mvps.org)

Post #: 3