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SAS,Interface
SAS
Interface
up to 261MB/s,Transfer Rate
up to 261MB/s
Transfer Rate
5-Year Limited Warranty,Warranty
5-Year Limited Warranty
Warranty
SAS,Interface
SAS
Interface
up to 261MB/s,Transfer Rate
up to 261MB/s
Transfer Rate
5-Year Limited Warranty,Warranty
5-Year Limited Warranty
Warranty

Shingled Magnetic Recording (SMR) enables data center expansion
The modern data center demands highest capacity HDDs to cost effectively expand storage and lower the total cost of ownership (TCO). SMR HDDs, and more specifically host-managed SMR (HM-SMR), enables higher capacities by overlapping the physical tracks on the media during write operations. A HM-SMR HDD results in higher capacity compared to a conventional magnetic recording (CMR) HDD of the same generation. While this requires software changes to properly exploit the capacity advantage of HM-SMR, the most common TCO metrics can be improved by utilizing SMR HDDs.
 

UltraSMR enables 26TB HDDs
Ultrastar DC HC670 integrates a suite of technologies on a 10-disk platform to create a new class of HDDs. 26TB1 is achieved by combining Western Digital’s OptiNAND™ technology with UltraSMR, energy-assist magnetic recording (EAMR), a 2nd generation triple-stage actuator (TSA), and proven HelioSeal® technology.
Combining OptiNAND with proprietary firmware that leverages HDD system-level hardware advancements, Western Digital’s new UltraSMR technology introduces large block encoding along with an advanced error correction algorithm that increases tracks-per-inch (TPI) to enable higher capacity. The result is Western Digital’s new 26TB Ultrastar DC HC670 UltraSMR HDD that delivers up to 2.6TB per platter, offering 18% more capacity for cloud customers optimizing their stacks to take advantage of the benefits of SMR.

Specifications

Capacity
26TB
Form Factor
3.5-Inch
Connector
SATA
Interface
SAS
Transfer Rate
up to 261MB/s
Disk Speed (RPM)
7200 RPM
Recording Technology
SMR
Cache Size
512MB
Dimensions (L x W x H)
147mm x 101.6mm x 26.1mm
Warranty
5-Year Limited Warranty
Weight
690gms
Operating Temperature
5°C to 60°C
Non-Operating Temperature
-40°C to 70°C
Product Features
  • Industry-first EAMR and TSA technologies with HelioSeal and host-managed UltraSMR
  • Purpose-built for sequential write applications
  • Projected 2.5M hours MTBF
Model Numbers
26TB: ultrastar-dc-hc670-26-tb
Model Numbers
26TB: ultrastar-dc-hc670-26-tb

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Disclosures

  1. One MB is equal to one million bytes, one GB is equal to one billion bytes and one TB equals 1,000GB (one trillion bytes). Actual user capacity may be less due to operating environment.
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