The HP StorageWorks Modular Smart Array (MSA) 20 are direct attached disk enclosures for increasing the storage capacity of your Proliant or Integrity Servers. These enclosures offer a great solution for users not yet ready to migrate to a Storage Area Network (SAN.)
The MSA 20 offers host connectivity via U320 SCSI interfaces. This enclosures allows the attachment of high capacity, low-cost SATA drives to older servers with parallel SCSI RAID controllers and host bust adaptors.
RAID functionality is achieved when using an HP SmartArray controller or software mirror. Consult your RAID controller specifications for determining the largest disk drive type you can install. (600GB 15K SAS and 3TB SATA drives can be installed into the array.)