Maintenances and incidents regarding our services, networks and datacenters can be followed here.
We will do the annual maintenance of the inverters of electrical chains A, B, C and D from 24 to 28 September 2018.
The inverters of these electrical chains supply racks of IT halls. Operations will be performed by our maintainer under our permanent supervision, according to the following previsional schedule :
24/09 Electrical chain A
25/09 Electrical chain B
26/09 Electrical chain C
27/09 Electrical chain D
28/09 Reserve if planning delayed
This maintenance requires isolating each UPS in or der to intervene on the device. The downtime of an UPS is estimated to take 30 minutes. The operation will be done UPS by UPS and will have no impact on your equipments housed in our Datacenter : the others UPS of the electrical chain are sized to recover the load from the offline UPS.
We will carry out the semi-annual preventive maintenance of CRAC units from September 3rd to October 4th, 2018. CRAC units will be shut down one at a time, so as not to impact the cooling of halls. Each IT zone has CRAC unit called «backup»: each CRAC unit is doubled. Each MVLB hall has a main air hanling unit (AHU).
The maintenance will be done according to the following schedule:
Impacts on services : Loss of cooling redundancy during the preventive maintenance operation of aCRAC unit (max 1h). No impact on the cooling of facilities. The maximum cut-off time per CRAC unit is otherwise defined at 1 hour
Thanks for your understanding
We are scheduling an electrical maintenance on TGBT1. It should not have any impact on availability, but some power redundancy will be down.
Maintenance will start on October 11th 2018, at 11:00PM UTC, and last around 7 hours (until October 12th, at 6:00AM UTC).