I want to setup a new SQL server with SQL 2008 R2. I have to use this version due to the application support behind it. I have a question regarding best practice with disk setup on a physical server.
Here is my proposed setup, but the application owner had some questions.
RAID1 - 2 x 146GB drives - OS drive
RAID1 - 2 x 146GB drives - tempdb
RAID1 - 2 x 146GB drives - translog
RAID5 - 3 x 900GB drives - database location
The owner was wondering if I could logically split up the RAID5 into 2 logical partitions with their own drive letters on the OS. They want a separate volume for SQL flat file backups. Of course this is possible, but I was wondering what option they would be better off with. Here are my two ideas, which one would be better?
Option 1: Split RAID5 physical into 2 logical, have 1 logical be used for the database, and 1 used for the backup.
Option 2: Split one of the RAID1 pairs into two logical volumes, and have the tempdb on one of these logicals, and the translog on the other. This would then free up one pair of RAID1 drives to be used for the flat file backup.
Which of these two options would be a better configuration? Assuming that the application owner does not wish to purchase 2 more drives.