Fwd: [dm-devel] IO error on DM device

[Bernd Zeimetz]

Hi,
> So based on the comments below and steps to reproduce, I'd say this is 
> expected behavior since multipathd is turned off. What happens if 
> multipathd is left running? It is implied that not stopping multipathd 
> will still cause a failure but will take much longer. I am no expert 
> on multipathd, so perhaps one of the dm developers can comment on 
> multipathd handling these SCSI error.
Unfortunately I've seen these errors occuring with an EMC CX attached to 
a single host, which was running multipath, too. It happened very, very 
rarely and just completely random. I didn't find any way to make it 
reproducible.


Best regards,


Bernd