[dm-devel] Help needed with RDAC in production environment!!

[S. J. van Harmelen]

Hi all,

Please look at the output from "multipath -ll"

backup (360019b9000d7e1100000444b46be82c4) dm-1 DELL    ,MD3000        
[size=200G][features=0][hwhandler=1 rdac]
\_ round-robin 0 [prio=3][active]
 \_ 1:0:1:2 sdh 8:112 [active][ready]
\_ round-robin 0 [prio=0][enabled]
 \_ 1:0:0:2 sdd 8:48  [active][ghost]
xen (360019b9000d7e1100000445a47314b36) dm-0 DELL    ,MD3000        
[size=200G][features=0][hwhandler=1 rdac]
\_ round-robin 0 [prio=3][enabled]
 \_ 1:0:0:3 sde 8:64  [active][ready]
\_ round-robin 0 [prio=0][enabled]
 \_ 1:0:1:3 sdi 8:128 [active][ghost]
vmware (360019b9000d7e1100000444846be81b6) dm-3 DELL    ,MD3000        
[size=200G][features=0][hwhandler=1 rdac]
\_ round-robin 0 [prio=3][enabled]
 \_ 1:0:0:0 sdb 8:16  [active][ready]
\_ round-robin 0 [prio=0][enabled]
 \_ 1:0:1:0 sdf 8:80  [active][ghost]
data (360019b9000d7ddab0000493846be81e5) dm-2 DELL    ,MD3000        
[size=200G][features=0][hwhandler=1 rdac]
\_ round-robin 0 [prio=3][active]
 \_ 1:0:1:1 sdg 8:96  [active][ready]
\_ round-robin 0 [prio=0][enabled]
 \_ 1:0:0:1 sdc 8:32  [active][ghost]

See the xen and vmware disks. They both display enable / enable instead
of active / enable. Is this correct? Or is a disaster waiting to happen?

Please advice!

Sander