Quantum Guide to Tuning the Performance of the StorNext File System

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StorNext File System Tuning

The StorNext File System (SNFS) provides extremely high performance for widely varying scenarios. Many factors determine the level of performance you will realize. In particular, the performance characteristics of the underlying storage system are the most critical factors. However, other components such as the Metadata Network and MDC systems also have a significant effect on performance.

Furthermore, file size mix and application I/O characteristics may also present specific performance requirements, so SNFS provides a wide variety of tunable settings to achieve optimal performance. It is usually best to use the default SNFS settings, because these are designed to provide optimal performance under most scenarios. However, this guide discusses circumstances in which special settings may offer a performance benefit.

The Underlying Storage System

The performance characteristics of the underlying storage system are the most critical factors for file system performance. Typically, RAID storage systems provide many tuning options for cache settings, RAID level, segment size, stripe size, and so on.

StorNext File System Tuning Guide

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Contents StorNext Copyright Statement Contents Contents Underlying Storage System StorNext File System TuningCaching RAID Cache ConfigurationRAID Write-Back RAID Read-Ahead RAID Level, Segment Size, and Stripe Size File Size Mix and Application I/O Characteristics NFS / Cifs Buffer CacheMetadata Network Snfs and Virus CheckingMetadata Controller System Stripe Groups FSM Configuration File SettingsAffinities StripeBreadth ThreadPoolSize BufferCacheSizeInodeCacheSize FsBlockSize ForcestripeAlignmentFsBlockSize JournalSize JournalSizeSnfs Tools StorNext File System Tuning Metadata Controller System StorNext File System Tuning Metadata Controller System Latency-testindex-number seconds Mount Command Options Hardware Distributed LAN Disk Proxy NetworksSnfs External API StorNext File System Tuning Guide Switch Network Configuration and TopologyDistributed LAN Client Vs. Legacy Network Attached Storage Distributed LAN ServersLoad Balancing Client Scalability Fault tolerancePerformance Robustness and Stability Consistent Security Model Windows Memory RequirementsStorNext File System Tuning Windows Memory Requirements Sample FSM Configuration File StorNext File System Tuning Sample FSM Configuration File StorNext File System Tuning Sample FSM Configuration File StorNext File System Tuning Sample FSM Configuration File StorNext File System Tuning Sample FSM Configuration File StorNext File System Tuning Sample FSM Configuration File