Seagate today began distribution channel shipments of the Pulsar XT.2 solid state drive (SSD) optimized for enterprise environments. The company will also commence channel shipments of the Pulsar.2 SSD, the first Multi-Level Cell (MLC) Flash-enabled SSD from an enterprise hard drive maker, on July 29.
The Pulsar XT.2 SSD combines Single-Level Cell (SLC) flash with a native 6Gb/s Serial
Attached SCSI (SAS) interface. The 2.5-inch SSD with up to 400GB of capacity is
optimized for complex, mixed workloads typical of enterprise environments such as
online transaction processing (OLTP), database or web indexing, and email.
The Pulsar.2 SSD has been designed specifically for data centers. The drive, featuring
up to 800GB of capacity, automatically detects and corrects any number of data errors
that could otherwise plague normal drive operations. The SSD supports both native
6Gb/s SAS and Serial ATA (SATA) 6Gb/s interfaces for primary and secondary server
storage.
The Pulsar XT.2
400GB SSD has met the standards of the Storage Performance Council (SPC), a
vendor-neutral consortium that defines, administers and promotes storage benchmarks,
for consistent and sustainable enterprise-class performance. Seagate claims that the
new SPC-1C Result demonstrated that the Pulsar XT.2 SSD delivers the sustainable
storage device performance enterprises need round-the-clock - regardless of the
workload complexity or changing server input-output (I/O) intensity levels.
In a single storage device configuration, the Seagate Pulsar XT.2 SSD produced an
SPC-1C Result of 20,008.82 SPC-1 IOPS with an average response time of 2.05
milliseconds over a 10-minute duration, compared to an SPC-1C Sustainability Test
result of 20,011.07 IOPS with an average response time of 2.08 milliseconds over four
hours, demonstrating consistent enterprise-class performance over time.
The real-world SPC-1C benchmark, designed for storage components, consists of I/O
patterns typically found in online transaction processing (OLTP) applications, with a
focus on random accesses. Unlike Iometer testing, which gauges IOPS performance using
discrete measurements of random reads, random writes, sequential reads or sequential
writes, SPC-1C benchmarks test storage components using a dynamic blend of random and
sequential reads and writes to emulate real-world enterprise workloads.
As part of the SPC-1C Result, the Pulsar XT.2 SSD also met the new SPC-1C requirement
for data prefilling. Prefilling reduces any potential performance gains storage
component vendors may produce by destroking a device, or limiting access to certain
portions of the storage space to artificially increase performance. Prefilling writes
random data to the entire addressable space of the drive.
Details of the Seagate Pulsar XT.2 SSD SPC-1C Result can be found at:
http://www.storageperformance.org/results/benchmark_results_spc1c/#c00012
.
Specifications |
|
| Model
Number |
ST400FX0002 |
| Interface |
6-Gb/s
SAS |
| Capacity |
400GB |
PHYSICAL |
|
| Height
(maximum) |
15.00mm
(0.591 in) |
| Width
(maximum) |
70.10mm
(2.760 in) |
| Length
(maximum) |
100.45mm
(3.955 in) |
| Weight
(typical) |
200g
(.441 lb) |
PERFORMANCE |
|
| Sustained data transfer rate |
360MB/s |
| I/O data
transfer rate |
600MB/s |
| Unrecoverable read errors |
1 in
1016 |
RELIABILITY |
|
| Annual
Failure Rate |
0.44% |
POWER |
|
| 12V
start max current |
0.45A |
| 5V start
max current |
1.15A |
| Average
idle power |
5.92W |
| Average
operating power |
6.67W |
ENVIRONMENT |
|
Ambient Temperature |
|
| Operating |
0°–60°C |
| Nonoperating |
-40°–70°C |
| Maximum
operating temperature change |
20°C
per hour |
| Maximum
nonoperating temperature change |
20°C
per hour |
Shock |
|
| Operating Shock (max) |
1000 Gs
for 0.5ms |
| Nonoperating Shock (max) |
1000 Gs
for 0.5ms |
Features |
|
| Storage
Type |
SSD |
| Enterprise |
Yes |
| NAND
Flash Type |
SLC |
| Peak
sequential 128KB read/write data transfer rate (MB/s max) |
360/300 |
| Peak 4KB
random read/write command rate (IOPs) |
48,000/22,000 |
| Relative
Humidity (op & non-op) Non-condensing |
5% to
95% |
| Operating Vibration 20-2000Hz |
16.3
Grms |
| Non-operating Vibration 20-2000Hz |
16.3
Grms |