| Fujitsu MAY SAS Series
Overview
As a point-to-point connection, Fujitsu SAS hard disk
drives help enterprises develop new solutions and maintain flexibility.
The RoHS
compliant, 2.5-inch hard disk drives offer up to 73.5GB of storage and
10K RPM - a perfect combination for high-end, mission-critical
applications residing on database servers, storage arrays, and NAS and SAN
systems.
With the 2.5-inch form factor, a greater number of SAS
drives can be installed in the space previously occupied by conventional
3.5-inch enterprise hard disk drives, resulting in improved input-output
(IO) performance. Additionally, lower power consumption helps systems
maintain reduced heat levels. The drives are also hot pluggable, so they
can be inserted or removed without harming the data or the system while
the entire system is still powered on.
The 3Gb SAS interface of the Fujitsu hard disk drives
allows customers to take advantage of the increased performance associated
with serial attached SCSI, while providing lower heat dissipation and
lower acoustics.
State-of-the-art hard disk drives for your most
demanding enterprise applications
- 2.5-inch RoHS
compliant Enterprise Hard Disk Drives offer 10K RPM spindle speed
and feature storage capacities up to 73 GB
- Mean-time-between-failure (MTBF) of 1,400,000
power-on hours
- The industry's first 2.5-inch small form factor
Serial Attached SCSI (SAS) interface
- Native Command Queuing (NCQ), providing faster
execution of operation commands
- Uses smaller connectors and cables than U320, a
benefit acknowledged by the SCSI Trade Association (STA)
Drive Features
- Small
Form Factor HDD: The adoption of 2.5" form factor to enterprise
HDD, the required space is reduced up to 73% in comparison with
previous 3.5" form factor enterprise HDD. This enables the
installation of more number of HDDs into same area space.
- High
Performance: It is possible to install more number of HDD in
comparison with 3.5" HDD in same space, IO performance (*1) is
improved under the system configuration.
- High
Speed Interface: Serial Attached SCSI which is the New serial
interface enables the High Speed Interface capability up to 3Gbits per
second.
- Low Power
Consumption: Power consumption requirement has reduced to 4.5 Watts
(Idle). It achieves up to 53% lower power consumption in comparison
with 3.5" HDD. (The comparison with Fujitsu products)
- Improvement
for Shock Tolerance: FDB (Fluid Dynamic Bearing) spindle motor (*2)
and Head Load/Unload mechanism (*3) enable in high shock torelance.
The drives withstand up to 400Go-p (duration 1ms) non-operating shock
and up to 100Go-p (duration 1ms) operating shock.
- RoHS
Compliance (MAY series only): This HDD is designed to meet the
requirements of the European Union's RoHS directive.
Notes:
*1: The IO through put performance of System
*2: The spindle motor which use the oil for the rotational bearing to
rotate the disk.
*3: The mechanism to unload the heads to outside of media to eliminate
the interference between heads and media.
FUNCTIONAL SPECIFICATIONS
| Model |
MAY2036RC |
MAY2073RC |
| Functional
Specifications |
| Storage
capacity (formatted) |
36.7GB |
73.5GB |
| Disks |
1 |
2 |
| Heads
(read/write) |
2 |
4 |
| Bytes/Sector |
512 |
| Seek
time |
Track
to
track |
Read:
0.2 ms (typ) / Write: 0.4 ms (typ) |
| Average |
Read:
4.0 ms (typ) / Write: 4.5 ms (typ) |
| Full
stroke |
Read:
8.0 ms (typ) / Write: 9.0 ms (typ) |
| Average
latency |
2.99
ms |
| Rotational
speed (RPM) |
10,025
rpm |
| Areal
density |
70.2
Gbits/sq. in. (max.) |
| Data
transfer rate |
3Gbps |
| Recording
code |
32/34
MEEPRML |
| Interface |
SAS |
| Head
positioning method |
Rotary
VCM |
| Start
time |
15
s (typ) |
| Stop
time |
15
s (typ) |
| Buffer
size |
16
MB |
Note:
*1: Fujitsu defines 1 gigabyte (GB) as 1,000,000,000 bytes for Hard Disk
Drives' storage capacity size.
*2: The formatted capacity is an estimate for 512 bytes per sector.
*3: Fujitsu defines 1 megabyte (MB) as 1,048,576 bytes for Hard Disk
Drives' cache size.
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