[Ocfs2-users] Could several different ocfs2 volume share a same lockspace?

Eric Ren zren at suse.com
Tue May 3 22:43:55 PDT 2016


Hello,

As email subject tell, I encountered this weird problem. I got this from 
customer:

# /sbin/mounted.ocfs2 -d
Device     Stack  Cluster   UUID
/dev/sdb                                       pcmk   pacemaker 
032F55597DEA4A61AB065568F964174D
/dev/sdal                                      pcmk   pacemaker 
032F55597DEA4A61AB065568F964174D
/dev/sdau                                      pcmk   pacemaker 
032F55597DEA4A61AB065568F964174D
/dev/sdbd                                      pcmk   pacemaker 
032F55597DEA4A61AB065568F964174D
/dev/sdbv                                      pcmk   pacemaker 
032F55597DEA4A61AB065568F964174D
/dev/sdce                                      pcmk   pacemaker 
032F55597DEA4A61AB065568F964174D
/dev/sdcw                                      pcmk   pacemaker 
032F55597DEA4A61AB065568F964174D
/dev/sdcn                                      pcmk   pacemaker 
032F55597DEA4A61AB065568F964174D
/dev/mapper/3600507640081010d5000000000000082  pcmk   pacemaker 
032F55597DEA4A61AB065568F964174D

I'm surprised several different ocfs2 volumes have the same UUID, and 
DLM use disk UUID as lockspace's name which means they share same lockspace!

Did you ever see this? Is it possible for different volumes share same 
lockspace? why?

Thanks in advance!
Eric



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