es6 and es7 are new sections.
es6 has blobs_cluster30
es7 has blobs_cluster31
Once this is done, we can disable writes on es4 and es5 and make them standalone hosts T364447: Make es4 and es5 RO
- Enable notifications on all es6 and es7 hosts
- Enable writes on both sections by merging: https://gerrit.wikimedia.org/r/c/operations/mediawiki-config/+/1029109