As part of our ongoing infrastructure development program, one of the distribution power panels on UPS-A will be upgraded to maximum capacity.

Impact
- No service interruption is expected.
- During certain phases, affected customers will temporarily lose UPS protection while load is transferred to external bypass utility power.
- Customers with dual power feeds connected to UPS clusters B and/or C will remain fully protected.

Affected Areas

For full duration of maintenance:
- ZA.C1.BB01
- ZA.C2.BB01
- ZA.C3.BB01
- ZA.C4.BB01
- ZA.C5.BB01
- ZA.C7.BB01

During external bypass transfer only:
- ZA.C6.BB01
- ZA.C8.BB01
- ZA.C9.BB01
- ZA.C10.BB01

Maintenance Schedule (CEST)
07:00 – Transfer load to unprotected utility power (engage static UPS + external bypass)
07:30 – Reinstate UPS protection for rows ZA.C6.BB01, ZA.C8.BB01, ZA.C9.BB01, ZA.C10.BB01
08:00 – Begin upgrade work on DIST-A:PP01
10:00 – Transfer remaining UPS-A load back to unprotected utility power (UPS static bypass)
10:30 – Disengage external bypass on DIST-A:PP01
11:00 – Disable static bypass and restore load to UPS, verify load, perform battery checks, confirm system status
12:00 – Maintenance window closes

UPS-A - DIST-A - PP01 (Power panel 01)

As part of our ongoing infrastructure development plan, one of our UPS clusters—originally commissioned in November 2024 during the early stages of our expansion—will be migrated to a newly prepared power path, Feed C, on Saturday, August 9, 2025.

Feed C is the fourth and final fully diverse power path (A, B, C, D) in our design, completing the last phase of power-related infrastructure upgrades. This enhancement is a key step toward increasing overall system redundancy and preparing the facility for upcoming infrastructure certification.

Planned Work Details

Impact:
- No service (or any form of power) interruption is anticipated
- Affected customers will temporarily lose UPS protection during the migration.
- Customers with dual power feeds connected to other UPS clusters will remain fully protected.

Affected Rows:
- ZA.C1.BB02 (Row 1, bus bar 2) – Racks ZA.C1.R1 - ZA.C1.R15
- ZA.C3.BB03 (Row 3, bus bar 3) – Racks ZA.C3.R1 - ZA.C3.R15
- ZA.C5.BB02 (Row 5, bus bar 2) – Racks ZA.C5.R1 - ZA.C5.R15
- ZA.C6.BB03 (Row 6, bus bar 3) – Racks ZA.C6.R5 - ZA.C6.R8
- ZA.C7.BB02 (Row 7, bus bar 2) – Racks ZA.C7.R1 - ZA.C7.R15

Maintenance Schedule (CEST)
07:00 – Engage external bypass and transfer load to unprotected utility power
08:30 – Migrate UPS input and power panel to new Power Feed C
11:00 – Return load through UPS, perform load verification, battery checks, and confirm system status
12:00 – Close maintenance window

On-Site Access & Coordination
We recommend minimizing on-site activity during this maintenance period. Customers requiring on-site engineering support are advised to coordinate with our operations team in advance to ensure safe access and proper support during the scheduled work.

We appreciate your cooperation as we continue to invest in the resilience and reliability of our facility.

UPS-C - The Hague Data Center

As part of our ongoing infrastructure lifecycle program, we will be completing the migration of remaining customer links from legacy switches in our Stockholm environment:

Switches being decommissioned:

- as1.sto1.se
- as2.sto1.se
- as3.sto1.se

Affected IPv4 ranges:
- 94.185.80.x
- 94.185.82.x
- 94.185.84.x
- 94.185.85.x

Scope of Work
- Finalize customer migrations to our new switching platform
- Physically move customer uplinks to upgraded infrastructure
- Decommission legacy switching hardware listed above

Network Enhancements
- New switches offer up to 100G port capacity
- Redundant uplink support for enhanced resilience
-Unmetered options for 20G (copper) and 40G/100G (fiber) available for bare metal customers

Expected Customer Impact
- Brief service interruptions during physical cabling work
- No configuration changes required on your part

All efforts will be made to minimize disruption during the maintenance window

Stockholm Bare Metal Network