Comment 11 for bug 1266262

Reviewed: https://review.openstack.org/142450
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=a1ba18c6ed4aa0e1cb824f5a9e9b3c9db208eb73
Submitter: Jenkins
Branch: master

commit a1ba18c6ed4aa0e1cb824f5a9e9b3c9db208eb73
Author: Davanum Srinivas <email address hidden>
Date: Wed Dec 17 09:07:59 2014 -0500

    ephemeral file names should reflect fs type and mkfs command

    At some point, we should switch over from ext3 to ext4. If we have
    'default', we can't tell if a file was created with ext3 or ext4
    as the file system. So we need a better way.

    The name format is from discussion on the mailing list [1] and
    was proposed by Pádraig Brady. Once we have this in place, we
    can resurrect changeset to switch over from ext3 to ext4
    first proposed by lifeless in
    I833356af81df743a63d4442d389be82bc25f3914 and reverted in
    I8de225729bbc77b263fcac2fa72b0e9cc6c1b2bf.

    [1] http://markmail.org/message/xzwt2r7acyj7n33t

    Related-Bug: #1266262
    Change-Id: I795d4165d668018658967661f593a9eb48652b2b