The MSA 1000s are probably the most commonly used external disk storage for HP’s ProLiant line of x86 servers, and include dual RAID 5 storage controllers, Fibre Channel server links, and space for 14 disk drives in a 4U chassis; up to 28 drives can be added in external enclosures for the MSA 1000s, yielding 6 terabytes of total storage.
The MSA 500 is a single-chassis version of the same array, with SCSI instead of Fibre Channel links and without expansion enclosures, and spans to 2 terabytes. HP’s ProLiant line has historically been the biggest driver of UnixWare sales, and support for the latest arrays is important, given SCO’s desire to boost UnixWare sales. UnixWare 7.1.4 and OpenServer 5.0.7 both support the HP arrays.
