Experimental platform
5-disk software RAID backing web server
- all disks emulated (50 MB each)
- 4 data disks, one spare
- emulator modified to simulate disk insertion/removal
- light web server workload
- non-overlapped static requests issued every 200us
Same test systems as availability case study
- Windows 2000/IIS, Linux/Apache, Solaris/Apache
Five test subjects
- 1 professor, 3 grad students, 1 sysadmin
- each used all 3 systems (in random order)