3.1Standard features
Cheetah 15K.4 FC drives have the following standard features:
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•Integrated dual port
•Concurrent dual port transfers
•Support for FC arbitrated loop, private and public attachment
•Differential copper FC drivers and receivers
•Downloadable firmware using the
•Supports SCSI enclosure services via interface connector
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•Supports up to 32 initiators
•Drive selection ID and configuration options are set on the
•Supports SCSI Enclosure Services through the interface connector
•Fibre Channel worldwide name uniquely identifies the drive and each port
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•Selectable frame sizes from 256 to 2,112 bytes
•Industry standard
•Programmable logical block reallocation scheme
•Flawed logical block reallocation at format time
•Programmable auto write and read reallocation
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•Sealed head and disc assembly (HDA)
•No preventive maintenance or adjustments required
•Dedicated head landing zone
•Automatic shipping lock
•Embedded Grey Code track address to eliminate seek errors
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•1:1 interleave
•Zone bit recording (ZBR)
•Vertical, horizontal, or top down mounting
•Dynamic spindle brake
•16,384 Kbyte data buffer (see Section 4.5).
•Embedded servo design
•Reallocation of defects on command (Post Format)
•Fibre Channel interface transports SCSI protocol
3.2Media description
The media used on the drive has an aluminum substrate coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability and environmental protection.
8 | Cheetah 15K.4 FC Product Manual, Rev. B |