Dear MoveComms,
We are planning a datacentre switchover for the week of March 18th (week 12) with the following schedule:
- **Services:** [[ https://zonestamp.toolforge.org/1710856800 | Tuesday, 19 March 2024 @14:00 UTC ]]
- **Traffic:** [[ https://zonestamp.toolforge.org/1710856800 | Tuesday, 19 March 2024 @14:00 UTC ]]
- **MediaWiki:** [[ https://zonestamp.toolforge.org/1710943200 | Wednesday, 20 March 2024 @14:00 UTC ]]
The expected impact is 2-3 minutes of read-only on Wednesday, 20 March 2024 @ 14:00 UTC.
Note that we are implementing the changes described in [[ https://wikitech.wikimedia.org/wiki/Switch_Datacenter/Recurring,_Equinox-based,_Data_Center_Switchovers | Recurring, Equinox-based, Data Center Switchovers ]], in particular:
- There is no switchback! we are staying in **eqiad** until the next switchover.
- Future switchovers are predictable and take place every 6 months; always on the week of an equinox.
Let #serviceops know if you need more info on the changes.
Thank you!
== Planning ==
**As soon as the task is received by CRS**
[x] Ask SRE if anything major changed since the last time (noticeable things that are worth being announced).
[x] If yes, update the process or the message.
[x] Confirm when the wikis will be in read-only
[x] Add the date to Asana, with a link to this task https://app.asana.com/0/1176034857101033/1206737712150740/f
**Three weeks before (Feb 29)**
[x] Tech News message (initial warning) - [[https://meta.wikimedia.org/w/index.php?title=Tech%2FNews%2F2024%2F10&diff=26311054&oldid=26305227|done]]
[x] [[ https://meta.wikimedia.org/wiki/Tech/Server_switch | Update the message to communities ]]
[x] Check on dates and links
[x] Have the message being translated by emailing both:
[x] translators-l for translations
[x] wikitech-ambassadors for information and translations
[x] Monitor the message's talk page
**Two weeks before (March 4)**
[x] Set the banner set for display on all wikis 30 minutes before it happens.
[x] The banner redirects to https://meta.wikimedia.org/wiki/Tech/Server_switch
**The week before (March 11)**
[ ] Emailing mailing lists:
[x] wikitech-ambassadors and translators-l once again (reminders)
[ ] wmfall (done by SRE)
[x] Added to the news on the Meta front page - [[https://meta.wikimedia.org/w/index.php?title=Template%3AMain_Page%2FWM_News&diff=26384931&oldid=26373435|diff]]
[] Send [[https://meta.wikimedia.org/wiki/Tech/Server_switch|the message]] to communities
[] [[ https://meta.wikimedia.org/wiki/Distribution_list/Non-Technical_Village_Pumps_distribution_list | non-technical village pumps ]]
[x] Check on translations
[x] for the banner ([[https://meta.wikimedia.org/wiki/Special:MessageGroupStats?group=Centralnotice-tgroup-read_only_banner&messages=&suppressempty=1&language=fr&x=D#sortable:6=desc|here]])
[x] for the message
[x] Tech News (add to the upcoming issue "this is happening this week")
**The week it happens (March 18)**
[] monitor the wikis
**The week after (March 25)**
[ ] Debrief how it went, and document (comment on this task)