The purpose of this Vagrant environment is to explore/play around with a multi-machine set up.
It includes 2 Apache web servers and 5 MySQL databases set up in different RAID level arrays.
The diferent RAID level arrays used are:
Data is broken down into blocks and each block is written to a separate disk drive (striped disk array). A minimum of 2 disk drives are needed to implement.
Data is mirrored across disk drives, 100% redundancy of data. A minimum of 2 disk drives are needed to implement.
Data is striped as in RAID 0, but with the slight difference that an extra data block containing parity information will be written on each disk drive as well. A minimum of 3 disk drives are needed to implement.
Basically same as RAID 5 but each disk drive will have 2 blocks with parity information instead of 1. Requires n+2 (where n is the number of data disks) disk drives to implement.
Combination of RAID 0 and RAID 1, data is both mirrored and striped. A minimum of 4 disk drives are needed to implement.
Benchmarking information and results can be found here
Note: As it's a sandbox it's pretty barebones, feel free to play around!