Features/NoDefaultLVM

From FedoraProject

< Features(Difference between revisions)
Jump to: navigation, search
(Scope)
 
Line 28: Line 28:
 
** /boot on the first available disk
 
** /boot on the first available disk
 
** / expands to fill the largest available disk
 
** / expands to fill the largest available disk
** ''But what do we do with the rest of the disks?''
+
** ''But what do we do with the rest of the disks?'' - ''Maybe we should use LVM only for system with more than one disk?''
  
 
== How To Test ==
 
== How To Test ==

Latest revision as of 18:06, 23 December 2009

Contents

[edit] Summary

Stop using LVM in the default partitioning scheme.

[edit] Owner

[edit] Current status

We're in the discussion/planning phases.

  • Targeted release: Fedora 21
  • Last updated: December 17, 2008
  • Percentage of completion: 0%

[edit] 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.

[edit] 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.

[edit] 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? - Maybe we should use LVM only for system with more than one disk?

[edit] How To Test

[edit] User Experience

[edit] Dependencies

[edit] Contingency Plan

[edit] Documentation

[edit] Release Notes

[edit] Comments and Discussion