New Simulations/Exhibits: RAID
RAID: A very bad simulation has been added that can only be 1/2 done correctly. It is RAID. You are presented with a diagram showing 4 devices with up to 4 slots a piece wherein you may add disks. The type of disk is either: Stripe or Mirror. Each of the devices is labeled as RAID 0, RAID 1, RAID 5 or RAID 6. You must then drag the appropriate number and types of disks to each device. E.g.: RAID 0 gets 2 stripes, RAID 1, gets 2 Mirror. How about RAID 5?
RAID 5 & 6 do not mirror; they use parity. But, of course, there is no disk type parity. So, it is really easy for this part. RAID 1 is 2 mirrors. RAID 5 requires 3 stripe disks. RAID 6 is 4 stripes. No mention of parity.
There are 4 types of computers in a list near the head of the diagram. Something like: Authentication server, database server, workstation and Domain controller.You are supposed to drag each one to the correct RAID. Well, OK. Maybe A PC can be RAID 0 as it might not be so critical, but without knowing the operating characteristics of these imaged computers and their importance, it is impossible to choose between RAID 1, 5 and 6. The options and the best guess on which disk type they match are:
- Media server – RAID 0
- RADIUS Authentication Server – RAID 1
- Email Archives – RAID 5
- ID Management – RAID 6
Our advice, if you cannot remember the above associations, drag anything to anywhere, so you will likely get one or so right and move on. The disk type selections will still earn you a fair number of points and it is do-able.