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sql server hardware for 15gb database with 1500 users

What is the required hardware for a SQL Server database of approximately 15Gb size with 1500 concurrent users?
I would need fault tolerance consideration in with this.
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MatDatasym
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MatDatasym
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
does the database use filegroups?

anyhow:
* OS + software installation : mirrored drive
* Database data datafiles: RAID5 (or RAID 10)
* database index datafiles: possibly on a dedicated RAID5 (or RAID 10)
* database transaction log file: possibly on a dedicated mirror per .ldf file (the system databases can all be on any of the other disk, as they are not I/O intensive.
* swap file (for windows), possibly dedicated mirror, otherwise the OS drive will do

the RAID5/10 could be on 1 big SAN storage, with multiple LUNs...

* clustering (2 nodes) if you can get 2 servers

>I would need fault tolerance consideration in with this.
what fault tolerance are you wanting to consider, actually?
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MatDatasymAuthor Commented:
Thanks for the reply.
The database is not currently using filegroups, but no there is no reason for this, so (if possible) we could change to use multiple filegroups.

Fault tolerance would be required for:
Server going down
Hard drive going down
Network or network card going down.

What spec would the server or servers need to be in terms ram and cpu(s)?
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Guy Hengel [angelIII / a3]Billing EngineerCommented:

>Fault tolerance would be required for:
>Server going down
>Network or network card going down.
-> clustering

>Hard drive going down
RAID, dual network card (teaming), clustering



RAM & CPU depend more on the database usage.
the more/faster, the better.
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