Gate setup fails on OVH nodes

[Martin André]

CI constantly fails when it hits an OVH node:

2015-12-10 17:44:46.322 | Error: Could not stat device /dev/vdb - No such file or directory.
2015-12-10 17:44:46.322 |
2015-12-10 17:44:46.322 | FATAL: all hosts have already failed -- aborting

See http://logs.openstack.org/01/255801/2/check/gate-kolla-dsvm-build-ubuntu-source/8327696/console.html#_2015-12-10_17_44_46_322

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/256182
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=40b8a0243e20d551f2e153759f531749783656be
Submitter: Jenkins
Branch: master

commit 40b8a0243e20d551f2e153759f531749783656be
Author: Martin André <email address hidden>
Date: Fri Dec 11 11:11:05 2015 +0900

    Skip gate FS optimization if no secondary disk

    This commit removes the assumption that all gate nodes have a secondary
    disk, and skip tuning the filesystem if the node doesn't have one.

    This fixes gate failures on OVH nodes.

    Closes-Bug: #1525047

    Change-Id: Ief22f34b32caf7a8b446df888fc5cc1964ad272e

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/liberty
Review: https://review.openstack.org/268835

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/268835
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=0c6d5e60ed3c852084cf08da9fa5bc7b567ac94c
Submitter: Jenkins
Branch: stable/liberty

commit 0c6d5e60ed3c852084cf08da9fa5bc7b567ac94c
Author: Martin André <email address hidden>
Date: Fri Dec 11 11:11:05 2015 +0900

    Skip gate FS optimization if no secondary disk

    This commit removes the assumption that all gate nodes have a secondary
    disk, and skip tuning the filesystem if the node doesn't have one.

    This fixes gate failures on OVH nodes.

    Closes-Bug: #1525047

    Change-Id: Ief22f34b32caf7a8b446df888fc5cc1964ad272e
    (cherry picked from commit 40b8a0243e20d551f2e153759f531749783656be)