HP StorageWorks 2000 Series Reference Manual page 248

Testing multiple operating systems or software development (where
redundancy is not an issue)
Fast temporary storage or scratch disks for graphics, page layout, and
image rendering
Workgroup servers
Video editing and production
Network operating system, databases, high availability applications,
workgroup servers
Very large databases, Web server, video on demand
Mission-critical environments that demand high availability and use
large sequential workloads
non-RAID
0
1 or 1+0 (10)
3
5
5+0 (50)
6