Seagate ST373554FC ユーザーズマニュアル
Cheetah 15K.4 FC Product Manual, Rev. B
7
3.0
General description
Cheetah 15K.4 FC drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood
(PRML) read channel electronics, embedded servo technology, and a Fibre Channel interface to provide high
performance, high capacity data storage for a variety of systems including engineering workstations, network
servers, mainframes, and supercomputers. Cheetah 15K.4 FC drives also support 2-Gbit Fibre Channel which
can transfer data at up to 200 Mbytes per second and 400 Mbytes per second in dual-loop configurations.
ST373453, ST336753, and ST318453 models also support 4-Gbit Fibre Channel which can transfer data at up
to 400 Mbytes per second and 800 Mbytes per second in dual-loop configurations.
(PRML) read channel electronics, embedded servo technology, and a Fibre Channel interface to provide high
performance, high capacity data storage for a variety of systems including engineering workstations, network
servers, mainframes, and supercomputers. Cheetah 15K.4 FC drives also support 2-Gbit Fibre Channel which
can transfer data at up to 200 Mbytes per second and 400 Mbytes per second in dual-loop configurations.
ST373453, ST336753, and ST318453 models also support 4-Gbit Fibre Channel which can transfer data at up
to 400 Mbytes per second and 800 Mbytes per second in dual-loop configurations.
Cheetah 15K.4 FC drives support the Fibre Channel Arbitrated Loop (FC-AL) and SCSI Fibre Channel Proto-
col as described in the ANSI specifications, this document, and the Fibre Channel Interface Manual (part num-
ber 77767496) which describes the general interface characteristics of this drive. Cheetah 15K.4 FC drives are
classified as intelligent peripherals and provide level 2 conformance (highest level) with the ANSI SCSI-1 stan-
dard.
col as described in the ANSI specifications, this document, and the Fibre Channel Interface Manual (part num-
ber 77767496) which describes the general interface characteristics of this drive. Cheetah 15K.4 FC drives are
classified as intelligent peripherals and provide level 2 conformance (highest level) with the ANSI SCSI-1 stan-
dard.
Never disassemble the HDA and do not attempt to service items in the sealed enclosure (heads, media, actu-
ator, etc.) as this requires special facilities. The drive does not contain user-replaceable parts. Opening the
HDA for any reason voids your warranty.
ator, 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.4 FC 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 land-
ing zone when power is removed from the drive.
possibility of destroying or degrading data by landing in the data zone. The heads automatically go to the land-
ing zone when power is removed from the drive.
An automatic shipping lock prevents potential damage to the heads and discs that results from movement dur-
ing shipping and handling. The shipping lock disengages and the head load process begins when power is
applied to the drive.
ing 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.
design that provides excellent performance with minimal power dissipation.