Marostegui added a comment.
So in terms of s8: I think step 1 (only 18MB) should be fine to be done anytime (still give us a heads up before starting for it). However, the second part, that requires 170GB can be a bit more dangerous. Right now the master only has 800GB free and I don't feel comfortable leaving it with just 600GB available, specially because it might be tight if we have unexpected growths, emergency/unexpected ALTER tables to do etc, which has happened in the past. One of our Q4 goals is to start replacing eqiad masters at some point (as they are very old) T217396: Decommission db1061-db1073 <https://phabricator.wikimedia.org/T217396>. s8 (wikidatawiki) has, like pretty much all the other sections, and old master that will be replaced. The new hardware is already at the datacenter, it is just pending racking, installation and setup, - once replaced the new master will have 1.2TB free T211613: rack/setup/install db11[26-38].eqiad.wmnet <https://phabricator.wikimedia.org/T211613> which is a lot healthier and less tight. s4 and s8 are the masters I wanted to give priority to be replaced, as both are not in great shape. To sum up, I would like the second step to wait for the new master to be up and running TASK DETAIL https://phabricator.wikimedia.org/T219145 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: alaa_wmde, Marostegui Cc: jcrespo, Marostegui, JeroenDeDauw, Addshore, Ladsgroup, Aklapper, alaa_wmde, Nandana, Lahi, Gq86, GoranSMilovanovic, QZanden, LawExplorer, _jensen, rosalieper, Wikidata-bugs, aude, Lydia_Pintscher, Mbch331
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