Question on RAID controllers/ drives
Posted on 2012-09-08
We have a new application that we'll be looking at shortly that we're going to be installing on a server (just for eval purposes initially). The application will be accessed by about 500 users and has a database and transaction log component.
We were thinking:
OS: RAID 1 pair
Transaction logs: RAID 1 pair
Database: RAID 10 (4 disks)
We wanted to seperate the logs and database activity to seperate drives since I understand that database and t-log disk activity should not be mixed.
My question is - do they need to be seperated by different RAID controllers? Or can we have one RAID controller servicing all of the above? I guess I am asking, can we have seperate RAID arrays all from one controller for best practice?
Application will be running on Windows 2008 Server.
The above question is assuming we went for a physical server.
How does this work if we decided to virtualise the application? How does RAID work with VM?