Please be advised of an upcoming scheduled planned maintenance event affecting our MDW01 (Chicago) Data center:
📅 Date: 07/27/2026 – 07/31/2026
⏰ Time: 8:00 AM CST – 17:00 PM CST
📍 Location: Charlotte - 4, NC
🔧 Affected Services: No Impact Expected
Risk: Medium
Maintenance Type: Scheduled Maintenance
Reason for Work: CL4 - Generator Maintenance
Risk Mitigation: Trained personnel will perform CL4 - Generator Maintenance on the above-mentioned date and time which includes: The annual, multi-day, load bank testing and level-II inspection of the emergency power generation systems and related components comprising of oil and filter changes followed by the verification of proper operation and functionality. The actions involved are fully documented and may include the use of external vendors.
The maintenance activities will be conducted during the following days:
Day 1 - Monday, July 27, 2026 Day 2 - Tuesday, July 28, 2026 Day 3 - Wednesday, July 29, 2026 Day 4 - Thursday, July 30, 2026 Day 5 - Friday, July 31, 2026
The windows will be open between 08:00 hrs. - 17:00 hrs. ET
During this activity, the location(s) will retain full functionality through the duration of the maintenance and there is no anticipated impact to customer services. How You’ll Be Notified:
✅ Initial Notification – Sent upon scheduling of the upcoming maintenance work. ✅ 1-Hour Reminder – A reminder notification is sent one hour before the start of the maintenance window. ✅ Start Notification – Issued at the beginning of the maintenance to confirm that the work is underway. ✅ Completion Notification ("All Clear") – Sent once maintenance is complete and all services are confirmed to be operational.
Our team will actively monitor the situation and remain in contact with the CCS Data Center Partner. Should you have any concerns, please reach out: 📧 support@cirrascale.com