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

[Joseph Qi]

I don't think so.
I haven't ever encountered this. So I am wandering if these volumes are
not newly created. In other words, they are copied using LUN copy.
Another possibility is, they are the same device with different name in
multipath environment.

Thanks,
Joseph

On 2016/5/4 13:43, Eric Ren wrote:
> 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
> 
> .
>