Overview of XFS Talk

9/29/99


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Table of Contents

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Overview of XFS Talk

SGI’s motivation: Why port and give away XFS?

1” x 3.5” Disk Capacity

XFS features

XFS features (cont’)

XFS features (cont’)

XFS Architecture

Why transactions/logging

XFS Log technology

async log and transactions

log/trans (cont’).

log/trans (cont’).

log/trans (cont’).

buffer cache/chunk cache

buffer cache/chunk cache (cont’)

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xfs_bmap -- command to see extents

XFS defragmenter (NEW in 1999)

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V2 Directory Structure

V2 Short Form

V2 Block Form

V2 Leaf Form

V2 Node Form

B-tree Directory Speed

Current work on IRIX

XFS (how big is it?)

GRIO

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Summary

Author: Jim Mostek

Email: mostek@sgi.com