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M2949 Specifications
Family Alias : AL-3'

The advanced-technology, high-performance SCSI drive with 9.1 GB of formatted capacity.

With the rapid growth of enterprise-wide networks and robust applications like multimedia production and CAD/CAM, today's high-end computer systems literally devour storage capacity. To meet the demands of these high-end work stations, servers and mid-range computers, Fujitsu created the M2949S, the highest performance and capacity 3.5-inch drive in its class. The M2949 blends advanced technologies and proven engineering expertise in a compact, power saving package to deliver a massive 9.1 GB of formatted storage, seek times as low as 10.0 ms, internal transfer rates of up to 14.0 megabytes per second and industry-leading MTBF ratings.

Uncommon Performance / Maximum Capacity

The M2949S combines advanced magneto-resistive (MR) head technology and digital read channel (PR4ML) electronics along with advanced caching strategies to deliver the ultimate in reliable data storage performance and capacity. Rotational speeds of 7,200 RPM, low 4.17 ms latency, fast seek times, rapid 10/20/40 MB/s interface burst transfer rates, spindle synchronisation, and a host of other performance-driven features make the M2949S a mass-storage leader.

Advanced Technology

Fujitsu was one of the first disk drive makers to consistently deliver volume production of reliable MR head technology and PR4ML electronics to the mass storage market. A world-wide technology leader, Fujitsu combines more than 25 years' experience and unparalleled expertise in computer and peripheral design and manufacture to deliver leading-edge data storage solutions.

Outstanding Reliability

In the computing world, Fujitsu has long been recognised as a leader in quality and reliability. The M2949 clearly demonstrates this long-held commitment, as evidenced by the drive's industry-leading MTBF and five-year warranty. When the application demands leading-edge performance and exceptional capacity in a power-saving 3.5-inch form factor, you can rely on Fujitsu's advanced M2949 hard disk drive.


Features

9.1 GB of formatted storage
Magneto-Resistive (MR) heads
High internal data transfer rate (up to 14.0 MB/s)
Fast 7,200 RPM spindle rotational speed
Rapid 10 ms seek time
Read ahead cache/write cache
512 KB adaptive cache buffer
Fast/Wide SCSI-2 interface, Differential, Fast 20/40, SCA
Audio/Video optimised and multimedia ready
1,000,000-hour MTBF
Five-year warranty

 


Part Numbers and Options

Model Part Number Interface
M2949S CA01407-B903 SCSI: 8bit single ended Fast 10 ( narrow 50 pin connector)
M2949SY CA01407-B713 SCSI: 8bit single ended Fast 20 Ultra SCSI (narrow 50 pin connector)
M2949Q CA01407-B723 SCSI: 16bit single ended Fast 20 Ultra SCSI (wide 68 pin connector)
M2949R CA01407-B733 SCSI: 16bit differential Fast 20 Ultra SCSI (wide 68 pin connector)
M2949E CA01407-B763 SCSI: 16bit Fast 20 Ultra SCSI (wide SCA-2 connector)

 


Functional Specifications

Model M2949S/SY M2949Q M2949R M2949E
Storage Capacity formatted 9.1 GB
unformatted 10.6 GB
Disks 10
Heads data 18
servo 1
Formatted Track capacity 76,947 to 116,116 bytes (13 zones)
Bytes/sectors 512
Cylinders 5,770
Sectors/Track 129 to 196 (13 zones)
Seek Time track to track Read 1.0 ms / Write 2.0 ms (typ.)
average Read 9.5 ms / Write 10.7 ms (typ.)
maximum Read 19.0 ms / Write 20.2 ms (typ.)
Average latency time 4.17ms
Rotational speed 7,200 rpm
Recording density 88,580 to 118,574 bpi (13 zones)
Track density 6,438 tpi
Data transfer rate to/from media 9.5 to 14.0 MB/s
to/from host 6MB/s 12MB/s (asynchronous mode)
  10/20MB/s 40MB/s (synchronous mode)
Recording code RLL 8/9 (0, 4, 4)
Interface Fast/ Fast20 narrow SCSI-2 SCSI-2, Fast, Wide Fast 20 wide SCSI-2 with SCA-2 connector
single ended differential single ended
Head positioning method ROTARY VCM
Start time 30 sec. (typ.), 60 sec. (max.)
Stop time 30 sec. (typ.)
Buffer size 512KB

 


Physical Specifications

Power Requirements voltage 12V ±5% 0.98A (ave.), 3.0A (peak); 5V: ±5% 1.0A (Sx), 1.1A (Qx/Ex)
ripple  
spin up 12V: ±5% 2.50A (Peak), 5V: ±5% 1.0A (Sx), 1.1A (Qx/Ex)
read/write -
idle (ready) -
sleep -
Dimensions height 41.3mm
width 101.6mm
depth 146.0mm
Weight 1.0kg
Ambient temperature operating 5°C to 50°C
not operating -40°C to 60°C
gradient 15°C/H (Max.)
Relative humidity operating 20% to 80%
not operating 5% to 95% (non condensing)
max. wet bulb 29°C
Vibration operating 0.5G Max. (5 to 250Hz)
not operating 5G Max. (5 to 250Hz)
Shock operating 5G Max. (10ms)
not operating 50G Max. (10ms)
Altitude operating 3,000m (Max.)
not operating 12,000m (Max.)

 


Reliability Specifications

Mean Time Between Failures (MTBF) 1,000,000 Power on Hours
Mean Time To Repair (MTTR) less than 30 minutes
Component Life 5 years
Recoverable errors -
Unrecoverable errors 10 per 10^15 bits read
Seek errors 10 per 10^8 seeks
Start/stop cycles -








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Last updated : 21 October, 1996