Table of Contents
Advertisement
www.seagate.com
3.0
General description
Exos X18 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.
Exos X18 drives are random access storage devices designed to 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. Exos X18
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 users to continue to leverage existing investment in SCSI while gaining a 12Gb/s serial data transfer rate.
The Self-Encrypting Drive models indicated on the cover of this product manual have provisions for "Security of Data at Rest" based on the
standards defined by the Trusted Computing Group
(see www.trustedcomputinggroup.org).
The head and disk assembly (HDA) is sealed at the factory. Helium recirculates within the HDA through a non-replaceable filter to maintain a
contamination-free HDA environment.
Never disassemble the HDA and do not attempt to service items in the sealed enclosure
Note
(heads, media, actuator, etc.) as this requires special facilities. The drive does not contain user-
replaceable parts. Opening the HDA for any reason voids the product warranty.
An automatic shipping lock prevents potential damage to the heads and discs 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.
Exos X18 drives decode track 0 location data from the servo data embedded on each surface to eliminate mechanical transducer adjustments and
related reliability concerns.
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.
Seagate recommends validating the configuration with the selected HBA/RAID controller
Note
manufacturer to ensure use of full capacity is supported.
Seagate Exos X18 SAS Product Manual, Rev. F
General description
8
Advertisement
Table of Contents
