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Re: [dm-devel] multipath prio issues

On 3/18/2014 1:55 AM, Bart Van Assche wrote:
On 03/18/14 00:51, Ross Anderson wrote:
I would appreciate support correcting another issues. We have two scst
storage arrays configured  with drbd replication and alua settings via
targets. When we run sg_inq and sg_rtpg we see the preferred port.
Multipath however doesn't seem to respect the priority path. We then
tried setting active and nonoptimized on the two storage arrays without
success. If I'm reading this correctly the devices are reporting their
state to the multipath system however it's not respecting the values.
I'd appreciate any assistance on the matter. Pastebin all the
appropriate .conf and command outs.
Hello Ross,

Have you already tried to change "prio group_by_prio" into "prio alua" ?



Yes, the config file had multiple devices listed. The one I focused on was the general however they all attached to the same set of storage heads. In Alua mode it gives them all prio 50 and the output of multipath show them not accepting the preferred value. I threw the complete config with different options to show no real different.


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