deployment-logstash2.deployment-prep.eqiad.wmflabs has three mounts:

/dev/vd/second-local-disk  /srv                    ext4  defaults  0  0
/dev/vd/second-local-disk  /var/lib/elasticsearch  ext4  defaults  0  0
/dev/vd/second-local-disk  /mnt                    ext4  defaults  0  0

Mentioned in SAL (#wikimedia-releng) [2017-10-30T10:56:20Z] <hashar> deployment-logstash2 removed puppet class role::labs::lvm::mnt, replacing with role::labs::lvm::srv . /srv is already mounted. Unmounting /mnt and restarting elastcisearch - T178722

Hello @CristianCantoro

Looks like you have created the instance wikidata-ldf.wikidata-ldf.eqiad.wmflabs. It is apparently mounting the instance extended disk space on /mnt and I would like to get it normalized to use /srv. That is due to the puppet class role::labs::lvm::mnt being applied to it. This task has some instructions to do the migration, but you would also need to adjust any code/settings that refers to /mnt.

Would it be possible to migrate it? I am available to assist.

PAWS uses role::labs::lvm::mnt with the mount_point being directed at /var/lib/docker instead of /mnt. Role role::labs::lvm::srv does not allow for that.
To me it seems the sanest path to remove role::labs::lvm::mnt would be develop a PAWS specific role that includes either a mountpoint definition in that path or, ideally, a PAWS specific role that installs docker, requires ::profile::labs::lvm::srv and adds -g /srv/docker to the docker default file.

It looks like only one instance still uses this: osmit-uno.osmit.eqiad.wmflabs in the osmit project, based on https://tools.wmflabs.org/openstack-browser/puppetclass/role::labs::lvm::mnt
Well, and PAWS, actually.

The Cloud-Services project tag is not intended to have any tasks. Please check the list on https://phabricator.wikimedia.org/project/profile/832/ and replace it with a more specific project tag to this task. Thanks!