Seagate ST3146707FC 146GB Fibre Channel Hard Disk Drive

Seagate Part #/MPN: ST3146707FC

DiscTech Item #: SGT-ST3146707FC-BN-OE


Enterprise Grade

Capacity: 146GB

Speed: 10,000RPM

Interface Types: Fibre Channel - Internal - Arbitrated Loop ASA II

Form Factor: 3.5inx1.0in LFF Hard Drive

Sector Size: 512 / 512e

Sustained Throughput: 59.9

Average Seek Time: 4.7 / 5.3

Electrical Interface: FC-AL - 2Gbps

On-Board Cache: 8MB

Seagate ST3146707FC 146GB 3.5in 2Gbps 10K RPM 40 pin Cheetah 10K.7 FC-AL Fibre/Fiber Channel HDD

Seagate ST3146707FC 146GB 3.5" 2.0 Gbps 10000 RPM 40 pin Cheetah 10K.7 FC-AL Fibre/Fiber Channel Hard Disk Drive

Apt MPN: 9X2004-150

Cheetah 10K.7 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 10K.7 FC drives support the Fibre Channel Arbitrated Loop (FC-AL) and SCSI Fibre Channel Protocol as described in the ANSI specifications, this document, and the Fibre Channel Interface Manual (part number 77767496) which describes the general interface characteristics of this drive. Cheetah 10K.7 FC drives are classified as intelligent peripherals and provide level 2 conformance (highest level) with the ANSI SCSI standard.

Never disassemble the HDA and do not attempt to service items in the sealed enclosure (heads, media, actuator, etc.) as this requires special facilities. The drive contains no parts replaceable by the user and opening the HDA for any reason voids your warranty.

Cheetah 10K.7 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 drive automatically goes to the landing zone when power is removed.

An automatic shipping lock prevents potential damage to the heads and discs that results from movement during shipping and handling. The shipping lock automatically disengages when power is applied to the drive and the head load process begins.

A high-performance actuator assembly with a low-inertia, balanced, patented, straight arm design provides excellent performance with minimal power dissipation.

Standard features

Cheetah 10K.7 FC drives have the following standard features:

  • 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 back panel or through interface commands. Jumpers are not used on the drive.
  • Fibre Channel worldwide name uniquely identifies the drive and each port
  • User-selectable logical block size (any multiple of four bytes, 512 to 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 disc assembly (HDA)
  • No preventive maintenance or adjustments required
  • Dedicated head landing zone
  • Automatic shipping lock
  • Embedded Grey Code track address and servo wedge 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
  • 8,192 Kbyte data buffer. See Section 4.5.
  • Drive Self Test (DST)
  • BackGround Media Scan (BGMS)
  • Data Integrity Check
  • Power Save
  • Embedded servo design
  • Reallocation of defects on command (Post Format)
  • Fibre Channel interface transports SCSI protocol

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.


  • Programmable multi-segmentable cache buffer
  • 200 Mbytes/sec maximum instantaneous data transfers per port
  • 10K RPM spindle; average latency = 3.0 msec
  • Command queuing of up to 128 commands
  • Background processing of queue
  • Supports start and stop commands


  • Annualized Failure Rate (AFR) or 0.62%
  • LSI circuitry
  • Balanced low mass rotary voice coil actuator
  • Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.)
  • Dithering


This drive is compatible with any Fiber / Fibre channel backplane.

Processor NumberST3146707FC
Internal Drive Characteristics
Drive Capacity146.8 GB
Read/Write Data Heads4
Bytes Per Track (Average, Round Off Values)556 KB
Bytes Per Surface (Unformatted, Rounded Off Value)50.5 GB
Tracks Per Surface (toatl User Accessible)90,774 Tracks
Traks Per Inch105,000 TPI
Peaks Per Inch658 KBPI
Internal Data Rate (Variable With Zone)470-944 Mb/s
Disc Rotation Speed (+ 0.5%)10,000 RPM
Average Rotational Latency3.0 msec
Seek Performance Characteristics
Access Time Average Read/Write (Typical)(msec)4.9/5.4
Access Time Single Track Read/Write (Typical)(msec)0.45/0.65
Access Time Full Strik Read/Write (Typical)(msec)9.9/10.5
Maximum Format command execution time (in minutes)(with verify)100
Maximum Format command execution time (in minutes)(without verify)50
Minimum Sector Interleave1 to 1
Data Buffer Transfer Rate to/from disc media (one 512-byte sector)(Minimum)59 MB
Data Buffer Transfer Rate to/from disc media (one 512-byte sector)(Maximum)118 MB
Sustainable Disc Transfer Rate (Minimum)39
Sustainalble Disc Transfer Rate (Maximum)80
Fibre Channel Interface maximum instantaneous transfer rate (1GHz)106 Mbytes/sec per port (dual port = 212 Mbytes/sec)
Fibre Channel Interface maximum instantaneous transfer rate (2GHz)212 Mbytes/sec per port (dual port = 424 Mbytes/sec)
Sector SizeDefault is 512-bytes Data Blocks
Logical Block Size Default51-byte Data Blocks
Logical Block Sizes Variaable512 to 528 bytes per sector in multiple of 4 bytes per sector
Read/Write Consecutive Sectors on a TrackYes
Flaw Reallocation Performance Impact (for flaws reallocated at formatt time using the spare sectors per sparing zone reallocation schemme)Negligible
Overhead Time for Head Switch in Sequential Mode0.8 msec
Overhead Time for One Track Cylinder Switch in Sequential Mode (typical)1.2 msec
Average Rotational Latency3.0 msec
Reliability Specifications
Seek Error RateLess than 10 errors in 10e8 seeks
Read Errors Rates (Recovered Data)Less than 10 errors in 10e12 bits transferred (OEM) default settings)
Read Errors Rates (Unrecovered Data)Less than 1 sector in 10e15 bits transferred
Read Errors Rates (Miscorrected Data)Less than 1 sector in 10e21 bits transferred
Interface Errore Rate Less than 1 error in 1012 bits transferred with minimum receive eye, Less than 1 error in 1014 bits transferred with typical receive eye
Preventative MaintenanceNone Required
Hot PluggableYes
S.M.A.R.T. On-line only delay time60 msec
S.M.A.R.T. Fully-Enabled delay time370 msec
Physical Specifications
Height (mm/in)25.4/1.000
Width (mm/in)101.6/4.000/td>
Depth (mm/in)146.05/5.75
Weight (g/lb)726/1.6
Idle StatesYes
Enhanced Intel SpeedStep TechnologyYes
Intel Demand Basned SwitchingNo
Thermal Monitoring TechnologiesYes
Intel Data Protection Technology
AES New InstructionsNo
Intel Platform Protection Technology
Trusted Execute TechnologyNo
Execute Disable BitYes

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ROHS Compliant

Alternate MPNs: 9X2004-150

Weight: 1.8 lb

Warranty: 1 Year DiscTech

Brand New

Condition Levels Explained

The product is brand new.

1 Year DiscTech Warranty

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The product has a DiscTech warranty for the time period specified. View our limited warranty