On Mon, May 8, 2017 at 11:50 AM, Stefano Bovina <bovy89@gmail.com> wrote:
Yes,
this configuration is the one suggested by EMC for EL7.

https://access.redhat.com/solutions/139193 suggest that for alua, the patch checker needs to be different.

Anyway, it is very likely that you have storage issues - they need to be resolved first and I believe they have little to do with oVirt at the moment.
Y.
 

By the way,
"The parameters rr_min_io vs. rr_min_io_rq mean the same thing but are used for device-mapper-multipath on differing kernel versions." and rr_min_io_rq default value is 1, rr_min_io default value is 1000, so it should be fine.


2017-05-08 9:39 GMT+02:00 Yaniv Kaul <ykaul@redhat.com>:

On Sun, May 7, 2017 at 1:27 PM, Stefano Bovina <bovy89@gmail.com> wrote:
Sense data are 0x0/0x0/0x0

Interesting - first time I'm seeing 0/0/0. The 1st is usually 0x2 (see [1]), and then the rest [2], [3] make sense.

A google search found another user with Clarion with the exact same error[4], so I'm leaning toward misconfiguration of multipathing/clarion here.

Is your multipathing configuration working well for you?
Are you sure it's a EL7 configuration? For example, I believe you should have rr_min_io_rq and not rr_min_io .
Y.

[1] http://www.t10.org/lists/2status.htm
[2] http://www.t10.org/lists/2sensekey.htm
[3] http://www.t10.org/lists/asc-num.htm
[4] http://www.linuxquestions.org/questions/centos-111/multipath-problems-4175544908/