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Panasas® ActiveStor® RELIABILITY IMPROVES WITH SCALE
PANASAS MARKETING
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PANASAS OVERVIEW
§ Scale-out NAS Solutions for Enterprise and Research • ActiveStor appliances in 5th generation • Shipping Since 2004, with 19 patents issued (more pending)
§ Panasas Management • Storage-focused executive management team • Highly experienced technical team − Dr. Garth Gibson, Founder & Chief Scientist, Author of “Berkeley RAID Paper”
§ VC Funded • Mohr Davidow, Samsung Ventures, Intel Capital, Focus Ventures,
Centennial Ventures
Industry Recognition
Faye Pairman, Panasas CEO
Cloud Project of the Year
Public Sector Storage Project
of the Year
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Life Sciences
Genomic Sequencing Computa1onal Chemistry
Molecular Modeling
Energy
Seismic Processing Reservoir Simula1on
Interpreta1on
Finance
Por=olio Op1miza1on Credit Analysis Risk Analysis
Manufacturing
EDA Simula1on Fluid Dynamics (CFD) Acous1c Analysis Op1cal Correc1on
Structural Mechanics
University
Materials Science Life Sciences
Climate Modeling High Energy Physics
Private Clouds
Government
Weather Forecas1ng Defense
Intelligence
BIG DATA: DESIGN & DISCOVER
Media
Digital Post-‐Produc1on Rendering
Satellite Imaging Digital Ac1ve Archives
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THE SCALABILITY-RELIABILITY DILEMMA
§ Hard Drive Failures are Inevitable • Drive failures become more frequent with scale simply because there
are more drives to fail. • For this reason, most scalable NAS systems bring scalability that
comes at the cost of lower data reliability and availability.
§ Hardware RAID Increasingly a Problem for Legacy Storage • Reliability and availability get worse with scale • Multi-day rebuild times becoming common • Odds of encountering sector errors too high, even for RAID 6
§ RAID Solutions Typically Architected for Protection, not Fast Rebuilds • Long RAID rebuild times lower overall data availability • Rebuild time determined by the quantity of data to rebuild and the
RAID architecture performance • Greater risk to production data during rebuild
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EVOLUTION OF RAID
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RELIABILITY AND AVAILABILITY AT SCALE
§ PanFS Delivers Unmatched Data Protection in Software • Erasure codes protect every file individually − No hardware RAID, no block-level rebuilds − Limits rebuilds to affected files, not entire drives
• RAID 6+ with triple parity protection: 150x improvement over dual parity − Guards against two simultaneous drive failures and single sector errors on
multiple drives − Only ~25% capacity overhead and minimal performance impact vs. RAID 5+
• RAID rebuild performance scales linearly − Mitigates risk from additional components at scale
• Randomized distribution of data means increased reliability at scale − Odds of “one-too-many” drive failures affecting data decrease with scale
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§ Per-file Distribution Reduces Risk at Scale • Small files are triple mirrored, large files are striped • With more and more drives, three drive failures (exceeding fault tolerance)
are less and less likely to affect any given file
One file damaged; Only need to restore File 5
No files damaged; Can rebuild all data
File 1 (small): down 2, rebuild mirror File 2 (small): unaffected File 3 (small): down 1, rebuild mirror File 4 (large): down 2, RAID 6 rebuild File 5 (large): down 3, file damaged!
File 1 (small): unaffected File 2 (small): down 1, rebuild mirror File 3 (small): unaffected File 4 (large): down 1, RAID 5 rebuild File 5 (large): down 1, RAID 5 rebuild
x x x
x x x
Files distributed over ten drives
Same files distributed over 20 drives
X = DRIVE FAILURES
X = DRIVE FAILURES
PER-FILE RAID INCREASES RELIABILITY
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UNMATCHED DISASTER RECOVERY
§ Fast Time to Restore • Restore specific files instead of entire file system • Made possible by extra protection of namespace (directory data) in RAID 6+
§ Percentage of Files to Restore Approaches Zero with Scale • With RAID 6+ (66% small files), a triple simultaneous disk failure means:
Scaling by 10x increases reliability by 1000x!
1 in ~200,000 files to restore
1 in ~200,000,000 files to restore
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REVOLUTIONARY AVAILABILITY MODEL
§ Extended File System Availability (EFSA) Ensures Business Continuity • File system remains available when other systems would be down
(even after one-too-many drive failures) • Directory structure stays navigable and all unaffected files can be
accessed normally • Only a small number of affected files will be unavailable until restored
from backup
§ Replaces “All Up/All Down” Model of the Past • Targets an “always on” architecture
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PANASAS ACTIVESTOR PLATFORM
§ Powered by PanFS storage operating system § 122.4TB per shelf à scales to 12PB § 1.5GB/s per shelf à scales to 150GB/s
ActiveStor Appliance
§ Metadata access § System management
Director Blade
§ Parallel data access § Advanced caching
Storage Blade
§ Single global namespace § Single system to manage § Seamless scaling with no downtime § Pay as you grow § Linear performance scaling
Panasas Architecture
CPUs = RAID ENGINES
COMPUTE CLIENTS
PANASAS DIRECTFLOW PARALLEL + SCALABLE
PANASAS ACTIVESTOR
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NEW: ACTIVESTOR 16 WITH PANFS 6.0
§ ActiveStor 16: Platform for PanFS 6.0 • 50% higher density, leveraging HGST UltraStar®
He6 6TB drives • Faster director blade speeds RAID rebuilds • Flash sized for RAID 6+
§ PanFS 6.0: RAID 6+ Triple Parity Protection • Per-file, distributed RAID 6+ overcomes limitations
of traditional RAID • Reliability increases with scale, not decreases • Extended File System Availability ensures business
continuity when other systems would be down • Quickly restore specific files for disaster recovery,
not whole file system
ActiveStor 16
HGST UltraStar® He6
6TB Drive
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ACTIVESTOR 16 PLATFORM
§ 50% Increase in Density • Hitachi HGST He6 Helium-filled 6TB drive
technology • 240GB SSD optimized for RAID 6+ • 122.4TB per 4U shelf
§ Linear Scalability • Field proven to 12PB and 150GB/s in a single,
global namespace − 100 shelves, 2000 HDDs, 1000 SSDs
§ Improved Director Blade Performance • 19% faster CPU (2.53GHz quad-core) • 4x more cache: 48GB memory • Improves metadata, small file and RAID rebuild
performance § Strong at Both Throughput and IOPS
• Ideal for large file, small file, and mixed workloads • >13,000 random 4KB file read IOPS per shelf • 1.5 GB/sec per shelf
ActiveStor 16 Storage Blade
240GB SSD
8GB Cache
6TB HDD x2
CPU
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SUMMARY
§ IT staff in technical research and enterprise environments need scalable and reliable high-performance storage that is easily managed
§ Selecting scale-out storage usually requires compromises • High performance computing file systems deliver performance but
compromise on reliability, availability, and ease of management • Enterprise NAS systems deliver high reliability and availability but
compromise performance
§ Panasas ActiveStor delivers a no-compromise solution
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PANASAS® ACTIVESTOR®
§ Enterprise-Grade Reliability • Triple parity protection with RAID 6+ • Reliability increases with scale • Extended File System Availability
§ High Parallel Performance • Direct data access eliminates
traditional NAS bottlenecks • Capacity and performance scale
linearly to 12PB and 150GB/s • Flash accelerated hybrid architecture
§ Easy Management • Minimal management effort at scale • Set up or grow capacity in <10 minutes • Single, global namespace
“No Compromise” Hybrid Scale-Out NAS
ActiveStor 16
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THANK YOU!