StorNext File System Tuning Guide i
Contents
Chapter 1 StorNext File System Tuning 1
The Underlying Storage System...................................................................... 1
RAID Cache Configuration....................................................................... 2
RAID Write-Back Caching ........................................................................ 2
RAID Read-Ahead Caching...................................................................... 3
RAID Level, Segment Size, and Stripe Size ............................................ 4
File Size Mix and Application I/O Characteristics....................................... 5
Direct Memory Access (DMA) I/O Transfer.......................................... 5
The Metadata Network..................................................................................... 7
The Metadata Controller System..................................................................... 7
FSM Configuration File Settings .............................................................. 8
Mount Command Options...................................................................... 17
The Distributed LAN (Disk Proxy) Networks............................................. 18
Network Configuration and Topology ................................................. 19
Distributed LAN Servers................................................................................ 21
Distributed LAN Client Vs. Legacy Network Attached Storage.............. 21
Windows Memory Requirements ................................................................. 23
Sample FSM Configuration File..................................................................... 25
