Features/NoDefaultLVM

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Revision as of 21:06, 17 December 2008 by Wwoods (Talk | contribs)

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Contents

Summary

Stop using LVM in the default partitioning scheme.

Owner

  • Name: Will Woods
  • email: [wwoods@redhat.com wwoods@redhat.com]

Current status

  • Targeted release: Fedora 22
  • Last updated: December 17, 2008
  • Percentage of completion: 0%

Detailed Description

LVM provides very little benefit for most Fedora users, at the cost of performance and complexity:

  • Certain filesystem features (ext3 barriers) are unavailable when run on top of LVM.
    • This is one of the root causes of the Firefox 3 hangups with fsync()
  • Software RAID performance is greatly reduced when layered on LVM.
  • LVM partitions are not automatically assembled by the desktop systems.

Benefit to Fedora

New Fedora installs will not use LVM unless specifically requested - experts in storage administration can still set up volumes however they like.

Scope

  • Patch anaconda to change the default partition layout:
    • /boot on the first available disk
    • / expands to fill the largest available disk
    • But what do we do with the rest of the disks?

How To Test

User Experience

Dependencies

Contingency Plan

Documentation

Release Notes

Comments and Discussion