HGST He8 0F23657-20PK Data Sheet

Product codes
0F23657-20PK
Page of 2
Data Sheet
Ultrastar
®
 He
8
3.5-Inch Helium Platform  
Enterprise Hard Disk Drives
Highlights
Industry’s leading 8TB capacity
1
 in a standard  
3.5-inch form factor
Industry’s best Idle and Active power 
efficiency (Watts/TB) 
Reliable, field-proven, 2nd generation 
HelioSeal™ process and 7Stac™ design
Compared to 6TB air drives 
» 
33% more capacity  
» 
23% lower idle power 
» 
44% more power efficient (Watts/TB)
SATA 6Gb/s and SAS 12Gb/s 
» 
12Gb/s SAS provides compatibility with  
  next gen data centers
2M hours MTBF
2
 rating & 5-year limited warranty
Secure erase & Self-Encrypting Drive (SED) options 
Advanced format 4Kn and 512e models
Applications/Environments
Enterprise and data center applications 
where capacity density and power efficiency 
are paramount
Cloud & Hyperscale storage
Massive scale-out High-density data centers (MSO)
Distributed Files Systems like Ceph
 and 
Hadoop
®
 to support Big Data Analytics
RAID arrays
Video surveillance & content distribution
Ideal for all mainstream enterprise capacity 
applications
HelioSeal
 Delivers Twice the Capacity Using One-Quarter Less Power
One-third more capacity and 23% lower energy consumption. Available
today. That’s the power of helium. Delivering the industry’s leading
capacity at 8TB, Ultrastar He
8
is based on the widely accepted and
proven HelioSeal™ platform. HelioSeal technology replaces air with
helium inside the drive, reducing air turbulence and enabling 7Stac™, a
seven-disk design in a traditional 3.5-inch form factor. Ultrastar He
8
goes
beyond what any air-based HDD can do and seamlessly integrates into
virtually any mainstream enterprise environment. Cooler and quieter
with industry-leading power efficiency (Watts/TB) and no-compromise
performance, the Ultrastar He
8
lays the foundation for future growth in
massive scale-out environments.
TCOptimized
 – Increasing Storage Efficiency to Drive Down Data Center TCO 
We recognize the growing pressures that data centers face. Volume is expanding, operating
costs are rising while budgets remain flat. Lowering the total cost of ownership (TCO)
has become the focus of data center architects. Ultrastar He
8
provides the best TCO value
proposition and delivers greater storage efficiency with breakthroughs in capacity, power
efficiency and best-in-class performance. This latest HelioSeal hard drive achieves up to 3X
higher random write performance than the prior generation , Ultrastar He
6
, thanks to HGST
media cache architecture, a disk-based caching technology. He
8
offers a 12Gb/s SAS (6Gb/s
SATA) interface for easy integration into high performance
data centers. New features like Rebuild Assist dramatically
reduce RAID rebuild times and maintain system performance
during the rebuild process. Learn more in our Rebuild Assist
technical brief.
Data Security with Industry-Leading Quality and Reliability 
Compliance and privacy requirements drive the need for increased data security. Ultrastar He
8
offers security and encryption options to protect data from unauthorized use. Instant Secure Erase
(ISE) models expedite drive redeployment and retirement. Encryption models protect data with
hardware-based encryption, including a Trusted Computing Group
(TCG) option with FIPS 140-2 certification, Level 2. The Ultrastar He
8
extends HGST’s long-standing tradition of reliability leadership
with a 2M-hour MTBF rating and a 5-year limited warranty. HGSTs
drive reliability and security options also help lower data center TCO.
Features and Benefits
Feature / Function
Benefits
Capacity
8TB and 6TB
8TB provides 33% more capacity than 6TB drives
Power 
Efficiency
Industry’s lowest Watts per  
terabyte (W/TB)
44% lower idle W/TB than 6TB air drives
Performance
Media cache architecture
Delivers up to 3X better random write performance compared to He
6
Rebuild Assist mode
Dramatically improves RAID recovery time and maintains system performance during recovery
SATA 6Gb/s & SAS 12Gb/s
Provides compatibility with high-performance data centers
128MB cache buffer
Improves response time and data management
Rotational Vibration Safeguard (RVS)
Maintains drive performance in high rotational vibration environments and multi-drive systems
Reliability
2.0M hours MTBF
2
Industry’s highest reliability rating for Capacity Enterprise HDD
5-year limited warranty
Better Industry’s best for enterprise-class hard drives soft error rate for improved reliability and performance
Data Security Instant Secure Erase
Enables swift and efficient drive redeployment and retirement
Optional Bulk Data Encryption (SATA)
and TCG Enterprise_A (SAS)
Hardware-based encryption protects data from unauthorized use
8TB and 6TB | 7200 RPM  
SATA 6Gb/s and SAS 12Gb/s
Rebuild Assist
Faster RAID recovery
while maintaining system
performance
Instant Secure  
Erase
Swift and secure drive
redeployment
* vs. 6TB air drives
33%
more  
 capacity*
23%
lower  
idle power*
44%
better 
 Watts/TB*