This rpm Nearline SAS drive is designed from the ground up specifically for enterprise-class Nearline storage, providing the capacity, performance, & reliability to support high-density tiered storage applications. Because applications requiring a combination of capacity, speed, & data integrity can also be classified as tier 2, Constellation drives are purpose-built not only for high capacity, but also for high performance & data integrity at the system level. Enhanced command queuing can accommodate up to 16 host connections to help eliminate single points of failure, while dual-port capabilities help provide redundancy for failover & data recovery. SAS technology helps reduce data corruption by using end-to-end initiator-target nexus checking for data moving to & from the drive & provides advanced error-reporting features. SAS drives can also help ensure operational continuity by offering seamless compatibility with existing SCSI software & middleware.