[linux-lvm] Persistent minor number problem in lvm2

Rainer Krienke krienke at uni-koblenz.de
Thu Jan 4 14:24:47 UTC 2007


I am running fileservers with SUSEs SLES10 using lvm2-2.02.02.

I noticed that minor numbers are not persitent no matter if I call lvcreate 
with "-M y" or without it. Whenever a logical volume is deleted and the 
machine is rebooted all minor numbers above the one of the lv that I deleted 
deleted are reassigned. This has dramatic consequences if the system servers 
as a NFS server as I had to learn. Clients (not rebooted) suddenly acces a 
NFS share say server:/export/A  but the contents of A are what 
server:/export/B really contains because the minor number of A and B changed 
on the server. So the mount succeeds but you get another NFS share than you 
mounted. Really ugly.

I found this discussion:

So I guess that this bug should have been fixed. Can anyone tell me if this is 
true, so that minor numbers are really persisent and what version of lvm I 
need to get this persistence to work correctly?

Rainer Krienke
Rainer Krienke, Universitaet Koblenz, Rechenzentrum, Raum A022
Universitaetsstrasse 1, 56070 Koblenz, Tel: +49 261287 -1312, Fax: -1001312
Mail: krienke at uni-koblenz.de, Web: http://www.uni-koblenz.de/~krienke
Get my public PGP key: http://www.uni-koblenz.de/~krienke/mypgp.html
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