Datasheet

Data Sheet
s841 SAS SSD
Enterprise Solid-State Drives
Highlights
• cMLC NAND Flash for higher ROI while
delivering high performance and endurance
• 6Gb/s SAS interface for maximum throughput
• Advanced power loss data management
technology
• Outperforms competitive SATA SSDs while
delivering enterprise endurance
Applications/Environments
• Cloud and Datacenters
• Enterprise-class servers and High
Performance Computing
• Space and/or power constrained
environments
• Web servers
• Video on demand, Streaming media
• Database acceleration/Archival storage
Performance and Capacity for the Data Center
Accelerating access to data is a proven success formula for enterprises and service
providers worldwide.
The s841SAS SSDs from HGST are engineered to take performance 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 for read-intensive applications, and also
oers capacities for today’s sweet-spot, 800GB and 400GB. With sustained IOPs of up to
83,200 read and 16,200 write, and maximum sequential throughput of 525MB/s read and
395MB/s write, the s841 SSD enables rapid access to “hot” enterprise data for improved
productivity and operational eciency.
Endurance Through Innovation
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 performance over the life of the SSD. With an MTBF rating of 2M
hours, the 2TB model can endure an impressive 25PB of random writes over the life of the
drive. HGST’s innovative CellCare™ technology is key to the s841 endurance success and
extends the life of flash media to deliver enterprise-class endurance through advanced
signal processing and adaptive flash management algorithms.
For complete data protection and reliability, the s841 incorporates extended error
correction code (ECC), Secure Array of Flash Elements™ (SAFE) technology to protect
against flash die failure and an exclusive power loss data management feature using
super capacitors. The s841 is also backed by a five-year limited warranty or the maximum
petabytes (PB) written (based on capacity).
400/800/2000GB | cMLC
2.5-inch SFF | SAS 6Gb/s
Features and Benefits
Feature / Function Benefits
Performance SAS 6Gb/s 6G Active-Active Dual port for enhanced reliability
cMLC NAND flash memory Consistent write performance and endurance
Up to 525/395 MB/s sequential R/W Maximum throughput and IOPs for ultra-fast access to data.
Up to 83K / 30K IOPS random R/W Significantly faster than typical HDD and SATA SSD drives
Capacity 2000, 800, 400 GB capacity More capacity for less space and power
Reliability 2M Hours MTBF Reduced field replacement effort
1E-17 bit error rate Enhanced error detection and correction for optimal data integrity
Power loss data management Assures data integrity during power failure
Unlimited reads, up to 25 PB writes (2000 GB) Maximum endurance over the life of SSD
Integration HDD architecture commonality Extensive interoperability and compliance testing