 The
advanced-technology, high-performance, low profile SCSI drive with 4.35
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 M2954, the highest performance and
capacity 3.5-inch drive in its class. The M2954 blends advanced
technologies and proven engineering expertise in a compact, power saving
package to deliver a massive 4.35GB 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 M2954 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 synchronization, and a host of other
performance-driven features make the M2954 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 M2954 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, by one inch high form factor, you can rely on
Fujitsu's advanced M2954 hard disk drive.
Features
 |
4.35GB 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 optimized and multimedia ready |
|
1,000,000-hour MTBF |
|
Five-year warranty |
Part Numbers and Options
| Model |
Part Number |
Interface |
| M2954SAU |
CA01407-B503 |
Fast SCSI-2 single ended |
| M2954SYU |
CA01407-B513 |
Fast-20 SCSI-2 single ended |
| M2954QAU |
CA01407-B523 |
Fast wide SCSI-2 single ended |
| M2954RAU |
CA01407-B533 |
Fast wide SCSI-2 Differential |
| M2954EAU |
CA01407-B563 |
Fast wide SCSI-2 with SCA-2
connector single ended |
Functional Specifications
| Model |
M2954SA/SY |
M2954Q |
M2954R |
M2954E |
| Storage Capacity |
formatted |
4.35 GB |
| unformatted |
5.4 GB |
| Disks |
5 |
| Heads |
data |
9 |
| servo |
1 |
| Formatted Track capacity |
77,214
to 109,173 bytes (13 zones) |
| Bytes per sector |
512 |
| Cylinders |
5,713 |
| Sectors/Track |
129 to
186 (13 zones) |
| Seek Time |
track
to track |
Read
0.8 ms (typ.) / Write 1.0 ms (typ.) |
| average |
Read
8.0 ms (typ.) / Write 9.0 ms (typ.) |
| maximum |
Read
17.0 ms (typ.) / Write 18.0 ms (typ.) |
| Average latency time |
4.17ms |
| Rotational speed |
7,200
rpm |
| Recording density |
83,603
to 118,737 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 |
Fast 20
wide SCSI-2 |
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 |
12V ±5%
operating |
0.57A (ave.), 2.0A
(peak) |
| 5V: ±5%
operating |
1.0A (Sx), 1.1A (Qx/Ex) |
| 12V ±5%
startup |
3.0A (peak < 100µs) |
| 5V: ±5%
startup |
1.0A (Sx), 1.1A (Qx/Ex) |
| Dimensions |
height |
25.4mm |
| width |
101.6mm |
| depth |
146.0mm |
| Weight |
0.6kg |
| 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 |
1.0G 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.) |
| Acoustic noise |
- |
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 |
- |
|
