[DC3] Curative maintenance on triple locking system inverter on DN / DR / DS of TGBT C
Scheduled Maintenance Report for Scaleway
In progress
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Jul 05, 2022 - 09:00 CEST
Scheduled
Following tests on generator of Datacenter, we have identified a malfunction of the DR circuit breaker (Generator of chain) at the level of triple circuit breaker inverter DN / DR / DS on TGBT C.

Following an expert evaluation by the manufacturer Schneider Electric, it was recommended to completely replace the triple locking system between the DN / DR / DS circuit breakers and to carry out new tests with no load, then with load.

To do this, we will have to shut down the TGBT of the C electrical chain and switch its electrical load to the 3 other A-B-D electrical chains supplying the computer rooms.

Our “Hexacore” design allows this type of maintenance to be carried out while maintening the continuity of service of your installations bbut downgrading thir level of redundancy to N.

The computer rooms concerned will be as follows :

- Room 1
- Room 2
- Room 3 – Module 3-3
- Room 3 – Module 3-4
- Room 3 – Module 3-6
- Room 4 – Module 4-3
- Room 4 – Module 4-4
- Room 4 – Module 4-6
- Operator Room 1

The electrical load of your computer racks supplied on one of the 2 electrical channels by the electrical chain C (TDHQ with blue label) will be switched to the second electrical channel of the computer rack.

Make sure you have properly connected your dual-powered equipment to the 2 electrical channels made available in each rack so that the scale can operate safely :
- Your equipment must be powered by both electrical channels. (dual 2N supply)
- Your mono-powered equipment must be powered on the STS channel.

Here are the different stages of the intervention :
- D Day : Switching the load of channel C to the other channels.
- D+1 Day : Shutdown of the TGBT C at 8 a.m + Maintenance + Recommissioning of the TGBT C + Off-load tests
- D+2 Day : Switching of the load to the C chain + Generator Load tests.

These interventions will be piloted and supervised by the Scaleway Datacenter teams with the manufacturers and maintainers of Schneider Electric and Eaton, as well as our generator set maintainer until their perfect completion.

A possible postponement of the maintenance is possible from July 11 to 13 or from July 18 to 20. If this is the case, a new notification will be sent to you.
Posted Jun 10, 2022 - 13:52 CEST
This scheduled maintenance affects: Dedibox - Datacenters (DC3).