Seagate ST373554FC ユーザーズマニュアル

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Cheetah 15K.4 FC Product Manual, Rev. B
3.1
Standard features
Cheetah 15K.4 FC drives have the following standard features:
• 4-Gbit Fibre Channel interface. For 2 or 4 gigabit operation, the block size must be divisable by 8.
• Integrated dual port FC-AL controller
• Concurrent dual port transfers
• Support for FC arbitrated loop, private and public attachment
• Differential copper FC drivers and receivers
• Downloadable firmware using the FC-AL interface
• Supports SCSI enclosure services via interface connector
• 128-deep task set (queue)
• Supports up to 32 initiators
• Drive selection ID and configuration options are set on the FC-AL backpanel or through interface com-
mands. Jumpers are not used on the drive.
• Supports SCSI Enclosure Services through the interface connector
• Fibre Channel worldwide name uniquely identifies the drive and each port
• User-selectable logical block size
 
(512 to 528 bytes per logical block). For 2 or 4 gigabit operation, the block 
size must be divisable by 8.
• Selectable frame sizes from
 
256 to 2,112 bytes
• Industry standard 3.5-inch low profile form factor dimensions
• Programmable logical block reallocation scheme 
• Flawed logical block reallocation at format time 
• Programmable auto write and read reallocation 
• Reed-Solomon error correction code
• 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 
• Self-diagnostics performed at power on 
• 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
3.2
Media 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.