DATA SHEET
ENTERPRISE SOLID-STATE DRIVES
s841 SAS
Performance and Capacity for
the Data Center
Highlights
Endurance Through Innovation
• cMLC NAND Flash for higher ROI while delivering high
The s841 SSD combines commercial-grade MLC NAND
flash memory, advanced endurance management firmware
and power loss data management techniques to extend
reliability, endurance and sustained perꢀormance over the
liꢀe oꢀ the SSD. With an MTBF rating oꢀ 2M hours, the 2TB
model can endure an impressive 25PB oꢀ random writes
over the liꢀe oꢀ the drive. HGST’s innovative CellCare™
technology is key to the s841 endurance success and
extends the liꢀe oꢀ flash media to deliver enterprise-class
endurance through advanced signal processing and
adaptive flash management algorithms.
Accelerating access to data is a proven success ꢀormula ꢀor
enterprises and service providers worldwide.
performance and endurance
• 6Gb/s SAS interface for maximum throughput
• Advanced power loss data management technology
• Outperforms competitive SATA SSDs while delivering
The s841 SAS SSDs ꢀrom HGST are engineered to take
perꢀormance to new levels in the data center and eliminate
data access bottlenecks. The s841 delivers up to a massive
industry-leading 2TB capacity, ideally suited ꢀor read-
intensive applications, and also offers capacities ꢀor today’s
sweet-spot, 800GB and 400GB. With sustained IOPs oꢀ up
to 83,200 read and 30,800 write, and maximum sequential
throughput oꢀ 525MB/s read and 395MB/s write, the s841
SSD enables rapid access to “hot” enterprise data ꢀor
improved productivity and operational eꢁiciency.
enterprise endurance
Applications/Environments
• Cloud and Datacenters
For complete data protection and reliability, the s841
incorporates extended error correction code (ECC), Secure
Array oꢀ Flash Elements™ (SAFE) technology to protect
against flash die ꢀailure and an exclusive power loss data
management ꢀeature using super capacitors. The s841 is
also backed by a five-year limited warranty or the maximum
petabytes (PB) written (based on capacity).
• Enterprise-class servers and High Performance
Computing
• Space and/or power constrained environments
• Web servers
• Video on demand, Streaming media
• Database acceleration/Archival storage
HGST Quality and Service
HGST’s s841 ꢀamily extends the company’s long-standing
tradition oꢀ perꢀormance and reliability leadership. A
balanced combination oꢀ new and proven technologies
enables high reliability and availability to customer data.
HGST drives are backed by an array oꢀ technical support
and services, which may include customer and integration
assistance. HGST is dedicated to providing a complete
portꢀolio oꢀ HDD/SSD solutions to satisꢀy today’s
monumental computing needs.
400/800/2000GB | cMLC
2.5-inch SFF | SAS 6Gb/s
Features & Benefits
Performance
Capacity
Reliability
Integration
Feature/function
•
•
•
•
SAS 6Gb/s
•
•
•
2000GB
800GB
400GB
•
•
•
•
2M Hours MTBF
1Eꢁ17 bit error rate
Power loss data management
Unlimited reads, up to 25 PB writes (2000 GB)
HDD architecture commonality
cMLC NAND ꢀlash memory
Up to 525/395 MB/s sequential R/W
Up to 83K / 30K IOPS random R/W
Beneꢀit
•
•
•
•
6G Active-Active Dual port for enhanced reliability
Consistent write performance and endurance
Maximum throughput and IOPs for ultra-fast access to data.
Signiꢀicantly faster than typical HDD and SATA SSD drives
More capacity for less
space and power
•
•
•
•
Reduced ꢀield replacement effort
Enhanced error detection and correction for optimal data integrity
Assures data integrity during power failure
Higher reliability increases return on investment.
Maximum endurance over the life of SSD
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