Hitachi 08K2254 SCSI 68pin Hard Drive

(0) No Reviews Yet

Hitachi Part #/MPN: 08K2254

DiscTech Item #: HIT-08K2254-FR-OE


$179.00
$179.00

Enterprise Grade

Capacity: 73GB

Speed: 10,000RPM

Interface Types: SCSI 68pin HD68 Female

Form Factor: 3.5inx1.0in LFF Hard Drive

Sector Size: 512 / 512e

Sustained Throughput: 33.8 - 66.7

Average Seek Time: 4.7ms

Electrical Interface: SCSI LVD U320 - 320MBps 16-bit

On-Board Cache: 8MB

Hitachi Ultrastar DK32EJ 08K2254 / DK32EJ-72NW  73GB 10K U320 68pin SCSI 3.5" Hard Drive - Factory Refurbished

Highlights:

  • Rotational speed of 10,000 rpm and average seek times as low as 4.7 ms provide outstanding performance
  • Capacities of 146, 73, 36, and 18GB from a single server drive family for unrivaled configuration flexibility and ease of integration
  • First ever server-class drive to implement antiferromagnetically-coupled (AFC) media, combined with advanced head/disk design, resulting in high reliability for today�fs critical server-class environments
  • Enhanced servo technology (Rotational Vibration Safeguard) nullifies the effect of rotational vibration in multi-drive cabinets, overcoming an industry hurdle to optimal server performance

Advanced drive technology

Introducing the sixth generation of Ultrastar 10,000 rpm disk drives. The Hitachi Ultrastar 146 Z10 drive family offers high quality and superior performance. These drives feature more powerful processors and read/write channels to excel in server-class environments.

To achieve maximum I/O performance, the drives combine fast seek times, large 8 MB multi-segmented buffers, a sophisticated command queuing algorithm, hardware automation, and superior data rates (825 Mbps). Ultrastar 146 Z10 drives include new servo technology (Rotational Vibration Safeguard "RVS"), employed to counteract the effects of rotational vibration that commonly occur in multi-drive cabinets. They also employ fifth-generation giant magnetoresistive (GMR) head technology to double areal density from previous generation drives (26.3 Gbits/sq. in.) and boost performance. In addition, highly efficient No-ID* sector formatting enables more data to be stored per disk.

Reliability features

The Ultrastar 146 Z10 family of server-class drives is the first of its class to incorporate our storage breakthrough technology antiferromagnetically-coupled (AFC) media. Informally known as �gpixie dust�h, this technology sandwiches a three-atom thick layer of ruthenium, a precious metal, between two magnetic layers on a disk. AFC technology provides greater stability of the recording media, enhancing reliability.

Drive Fitness Test enables drive self-testing and analysis for more robust system management. To help ensure data protection, Hitachi Ultrastar drives include exclusive reporting tools, such as Predictive Failure Analysis* (to signal potential drive problems) and Drive-TIP* (to monitor the drive temperature and avoid malfunctions).

In addition, load/unload technology and glass substrate disks increase reliability of Ultrastar drives by providing a more robust solution at high rotational speeds.

Outstanding environmentals

Hitachi Ultrastar drives provide extremely quiet operation. The tri-laminate drive cover reduces both idle and seek acoustics while an enhanced spindle motor driver enables smoother commutation for less noise. Moreover, the Ultrastar 146Z10 delivers an outstanding power efficient design.

Support for advanced applications and interfaces

Hitachi Ultrastar drives provide high data throughput for data-intensive applications with a choice of 2 Gbit Fibre Channel and Ultra320 SCSI (backward-compatible) interfaces. The Ultra320 SCSI adds greater speed, reduced overhead, improved diagnostic capabilities and data protection.



Model Number: DK32EJ


Compatibility:

This drive is comaptible with any of our hotswap drive trays / caddies.

Configuration  
InterfaceUltra320 / Ultra160 SCSI FC-AL-2
Capacity (GB)1146.8/73.4/36.7/18.3146.8/73.4/36.7/18.3
Sector size (bytes) 512-528 (variable, 2 byte inc.)512-528 (8 byte inc)
Recording zones1515
Data heads (physical)12/6/3/2 12/6/3/2
Data disks6/3/2/16/3/2/1
Max. areal density (Mbits/sq. inch)26,2633126,263
Max. recording density (BPI)548,000548,000
Track density (TPI)47,90047,900
   
Performance  
Data Buffer8192 KB8192 KB
Rotational speed (rpm)10,00010,000
Latency average (ms)3.003.00
Data transfer rate (max. Mbits/sec)433 - 825433 - 825
Interface transfer rate (max. MB/sec)320200/400
Sustained data rate (MB/sec) 33.8 - 66.733.8 - 66.7
   
Seek time (read, typical)2  
Average (ms)4.74.7

Track to track (ms)0.50.5
Full track (ms)7.2/8.07.2/8.0
   
Reliability  
Error rate (non-recoverable)10 in 10E16 bits read 10 in 10E16 bits read
Start/stops (at 40° C)50K50K
   
Acoustic  
Idle - Typical (Bels)3.7/3.4/3.4/3.43.7/3.4/3.4/3.4
Operating - Typical (Bels)4.5/4.5/4.5/4.54.5/4.5/4.5/4.5
   
Power  
Requirement+5VDC (+-5%), +12 VDC (+-5%)+5VDC (+-5%), +12 VDC (+-5%)
Dissipation   
Startup current (max. peak)1.07A (5V), 2.40A (12V)1.12A (5V), 2.40A (12V)
Idle (W)10.2/7.7/7.0/5.9 11.1/8.6/7.9/6.8
Power consumption efficiency index0.07 W/GB , 0.11 W/GB0.08 W/GB , 0.12 W/GB
0.19 W/GB , 0.33 W/GB0.22 W/GB , 0.38 W/GB
   
Dimensions  
Height (mm)25.4 (+-0.4)25.425.4 (+-0.4)
Width (mm)101.6 (+-0.4)101.6 (+-0.4)
Depth (mm)146 (+-0.6)146 (+-0.6)
Weight (max. kg)0.780.78
   
Environmental characteristics  
Operating  
Ambient temperature5° to 55° C 
Relative humidity (non-condensing)8% to 90% 
Max. wet bulb (non-condensing)29.4° C 
Shock (half sine wave)10G (11 ms) / 45G (2 ms) 
Random Vibration (RMS)0.67G for horizontal 
0.56G for vertical 
   
Non-operating  
Ambient temperature-40° to 65° C 
Relative humidity (non-condensing)5% to 95% 
Max. wet bulb (non-condensing35° C 
Shock (half sine wave)75G (11 ms) / 225G (2 ms) for 146GB / 300G (2 ms) for 73, 36, and 18GB
Random Vibration (RMS)1.04G 

1 GB equals one billion bytes when referring to hard drive capacity; accessible capacity may be less.

2 Excludes command overhead.


Click here to view the manufacturer's item description/brochure

Alternate MPNs: DK32EJ-72NW 8K2254

Weight: 1.8 lb

Warranty: 1 Year DiscTech

Factory Refurbished

Condition Levels Explained

The product has been built, rebuilt or repaired at the original manufacturer's factory (Note we NEVER sell 3rd party repaired items, as we do not find them to be reliable enough). Often these products are extremely close to new in condition, except that they contain at least one recycled or repaired component. Failure rates are often lower on these devices since they have been far more thoroughly tested than new items.

Product Warranties Explained

The product has a manufacturer warranty for the time period specified.

1 Year DiscTech Warranty

Product Warranties Explained

The product has a DiscTech warranty for the time period specified. View our limited warranty

Ratings & Reviews

No reviews available

Be the first to Write a Review