Based in Milpitas, Calif., 10-year-old Engenio has about 900 employees. The company sells no-frills modular, high-performance serial SCSI (SAS) and Fibre Channel-attached storage arrays.

Its arrays do not offer deduplication, thin provisioning and some other enterprise-class functionality that NetApp's arrays offer.

Engenio's arrays include solid state drives (SSD), Fibre Channel drives and serial ATA (SATA) drives with transfer speeds as great as 8Gbit/sec via Fibre Channel, or 1Gbit/sec via iSCSI host cards.

The arrays expand from as many as 16 in a 3U (5.25-in high) to as many as 112 using six additional expansion drive enclosures.

Engenio took in about $705 million in revenue last year. The company also has a deep reseller base that includes giants IBM, SGI, StorageTek, Cray and Teradata.