Seagate ST51080N SCSI Hard Drives

Capacity: 1GB
Spindle Speed: 5,400RPM
Interface Type: SCSI 50pin
Disk Size: 3.5″x1.0″ (LFF Hard Drive)
Sustained Throughput (MBps): 
Average Seek Time (read/write ms): 12.5
Electrical Interface Speed: SCSI II Fast – 10MBps 16-bit

The ST51080N is a high-capacity, high-performance, energy-efficient SCSI drive that comes in the mini 3.5-inch form-factor.

The drive uses a high-performance SCSI-2 interface that supports an asynchronous external transfer rate of up to 5 Mbytes per second and a synchronous external transfer rate of up to 10 Mbytes per second.

The interface is supported with a 128-Kbyte segmented cache and embedded servo technology. The segmented cache aids the flow of read and write data. The embedded servo allows for accurate POSITIONING of the heads over the data and eliminates periodic thermal recalibration to assure data transfer without interruption.

The ST51080N conforms to the standard 3.5-inch footprint but have a 0.75-inch (19 mm) height profile and a 5.0-inch depth profile. The lower height and shorter depth gives the designer or integrator more ROOM for air circulation, other peripherals or a smaller drive bay.

Capacity

• 1.08 Gbytes formatted

Performance

• Uses the SCSI-2 interface
• 5,376-RPM rotational speed
• 128-Kbyte segmented buffer
• 12.5-msec average seek time

Acoustics

• 30-dBA idle acoustic sound level

Mini 3.5-inch form-factor

• 19-mm height profile
• Fits standard 3.5-inch footprint
  

  Model:	ST51080N
  Interface Type	50 pin
  Formatted Capacity (MB)	1080.23
  SECTORS Per Track	109 rounded down
  Actuator Type	Rotary Voice Coil
  Cylinders_Physical	4,826
  Heads_Physical	4
  Discs (3.5in)	2
  MEDIA Type	Thin Film
  Recording Method	ZBR RLL (1,7)
  Internal Transfer Rate (Mbps)	33 to 67
  External Transfer Rate (MBps)	5 Async/10 Sync
  Spindle Speed (RPM)	5,376
  Average Latency (ms)	5.6
  Buffer (KB)	128
  Interface Speed	SCSI II Fast 10 MBps
  SECTORS Per Drive	2,109,840
  TPI (Tracks Per Inch)	4,923
  BPI (Bits Per Inch)	73,344
  Average Seek (ms)	12.5
  Single Track Seek (ms)	3.5
  Max Full Seek (ms)	25
  MTBF	300,000 hours
  Shock (G’s) Operating	2
  Accoustics (dBa) Idle	30/34