C
HEETAH
15K.7 FC P
RODUCT
M
ANUAL
, R
EV
. E
7
3.1
S
TANDARD FEATURES
Cheetah 15K.7 FC drives have the following standard features:
• 4-Gbit Fibre Channel interface
• 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 commands. 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, 520, 524, or 528 bytes per logical block)
• 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 disk 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
• 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
Cheetah 15K.7 FC SED models have the following additional features :
• Automatic data encryption/decryption
• Controlled access
• Random number generator
• Drive locking
• 16 independent data bands
• Cryptographic erase of user data for a drive that will be repurposed or scrapped
• Authenticated firmware download
