DAG in Exchange 2010

Hello all,
I want to create a DAG with there mailbox servers and around 2000 mailboxes.
How many database should each mailbox server have including the database copies.
Thanks,
dongocdungAsked:
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Manpreet SIngh KhatraConnect With a Mentor Solutions Architect, Project LeadCommented:
50-100 was more preferred for Exchange 2003 but since 2007 Cluster we can have larger databases

Look it depends as today i can restore a 100GB database within an hour so i am good with 100GB anyday ... depends on how you want to take it

- Rancy
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AmitIT ArchitectCommented:
It depends, what is your server config etc. Use Mailbox Calculator tool
http://gallery.technet.microsoft.com/office/Exchange-2010-Mailbox-Server-Role-
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AmitIT ArchitectCommented:
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
If 2000 you will get a good idea with storage calculator

Now comes what is the total size and what should be the DB size

If three servers i would ideally have 9 DB's and have 3DB's per server (but depends if with this some DB's shouldnt be like 100GB and some 250GB)

- Rancy
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dongocdungAuthor Commented:
Rancy,
As your info,  each server has three database. So, Do you mean each server has around 700 mailboxes?
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dongocdungAuthor Commented:
What is the ideal storage for each server? Thanks,
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
I wouldnt simply say on the number of mailboxes but the Database size ..... we have 4 Servers in DAG and each server holds 2 Database .... each server has 24GB of RAM

Each server at my end has 9TB of SAN storage assigned to them so i dont think its a big issue with much storage

- Rancy
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dongocdungAuthor Commented:
Rancy,
Thank you very much for the info
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dongocdungAuthor Commented:
I did read some articles. They stated that the database is around 50-100 GB? Is that correct?
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