On Monday, December 3rd, 2018 at 1700 UTC, we will be rebooting one of the two dumps NFS servers (labstore1006.wikimedia.org). This should cause rising load issues briefly, but should be quick enough that failing over services is likely to not be helpful. We will be failing over the web service before that time and failing it back before rebooting the partner server (labstore1007.wikimedia.org) on Friday, December 7th at 1700 UTC. This should not interrupt services to dumps.wikimedia.org (the site hosted on these systems) since that should be failed over to the non-rebooting partner.
Brooke Storm
Operations Engineer
Wikimedia Cloud Services
IRC: bstorm_