Bug 138478

Summary: lvcreate fails when using striping
Product: [Fedora] Fedora Reporter: Simon Andrews <simon.andrews>
Component: lvm2Assignee: Alasdair Kergon <agk>
Status: CLOSED NOTABUG QA Contact:
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Priority: medium    
Version: 2   
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OS: Linux   
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Last Closed: 2004-11-16 16:58:00 UTC Type: ---
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Example session showing the failure none

Description Simon Andrews 2004-11-09 15:23:42 UTC 
Description of problem:

lvcreate fails when using striping but completes if this is omitted.


Version-Release number of selected component (if applicable):

lvm2-2.00.15-2


How reproducible:

Always

Steps to Reproduce:
1. Initialise multiple disks with pvcreate
2. Create new volume group with vgcreate
3. Run vgdisplay then try to create a striped volume covering the
entire extent of the group using the free size reported.  
  
Actual results:

Creation fails citing a requirement for less allocatable extents than
are listed as free by vgdisplay

Expected results:

Creation should succeed.


Additional info:
Comment 1 Simon Andrews 2004-11-09 15:25:40 UTC 
Created attachment 106344 [details]
Example session showing the failure
Comment 2 Alasdair Kergon 2004-11-09 17:06:03 UTC 
 Total PE              122506

which is not divisible by 4, so your disks can't be identical in size.

You can only have 4-way striping until you've filled your smallest disk.