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CHEETAH 15K.7 SAS PRODUCT MANUAL, REV. F 5
3.0 GENERAL DESCRIPTION
Cheetah 15K.7 drives provide high performance, high capacity data storage for a variety of systems including engineering
workstations, network servers, mainframes, and supercomputers. The Serial Attached SCSI interface is designed to meet
next-generation computing demands for performance, scalability, flexibility and high-density storage requirements.
Cheetah 15K.7 drives support the Serial Attached SCSI Protocol as described in the ANSI specifications, this document, and
the SAS Interface Manual (part number 100293071) which describes the general interface characteristics of this drive.
Cheetah 15K.7 drives are classified as intelligent peripherals and provide level 2 conformance (highest level) with the ANSI
SCSI-1 standard. The SAS connectors, cables and electrical interface are compatible with Serial ATA (SATA), giving future
users the choice of populating their systems with either SAS or SATA hard disk drives. This allows you to continue to
leverage your existing investment in SCSI while gaining a 3Gb/s serial data transfer rate.
Cheetah 15K.7 SAS SED models have provisions for “Security of Data at Rest” based on the standards defined by the
Trusted Computing Group (see www.trustedcomputinggroup.org).
Note. Never disassemble the HDA and do not attempt to service items in the sealed enclosure (heads, media, actuator,
etc.) as this requires special facilities. The drive does not contain user-replaceable parts. Opening the HDA for
any reason voids your warranty.
Cheetah 15K.7 drives use a dedicated landing zone at the innermost radius of the media to eliminate the possibility of
destroying or degrading data by landing in the data zone. The heads automatically go to the landing zone when power is
removed from the drive.
An automatic shipping lock prevents potential damage to the heads and disks that results from movement during shipping
and handling. The shipping lock disengages and the head load process begins when power is applied to the drive.
The drives also use a high-performance actuator assembly with a low-inertia, balanced, patented, straight arm design that
provides excellent performance with minimal power dissipation.