DCD Frontend: Issues editing VDCs

Update timeline

1. investigating Mar 04, 2026, 08:51 AM UTC

   We are actively investigating reports of frontend problems when attempting to edit VDCs through the DCD UI.

2. monitoring Mar 04, 2026, 09:54 AM UTC

   Our DCD Front‑end team has identified an issue introduced by a recent release. A rollback was performed, and customers who were unable to edit their VDCs and were confronted with an “In Progress/Pending” status should now be unblocked. We are actively monitoring the situation.

3. resolved Mar 04, 2026, 11:14 AM UTC

   We are marking this incident as resolved. The Issue was caused by a faulty DCD release, which was rolled back by the responsible team.

4. postmortem Mar 05, 2026, 10:45 AM UTC

   **What happened?** Users experienced the Data Center Designer \(DCD\) UI becoming unresponsive, displaying a persistent "In Progress" hourglass popup when attempting to open or edit certain Virtual Data Centers \(VDCs\). This issue prevented users from editing components or loading VDCs entirely. The problem was resolved via a rollback of the affected version and the subsequent deployment of a fixed release. **How was this possible? \(Root Cause\)** Changes introduced in a recent release - which targeted storage volume handling - inadvertently impacted CDROM volumes. While CDROM volumes are technically classified as storage volumes within the codebase, they carry different properties. The logic implemented for HDD/SSD volumes did not account for these differences, causing the UI to enter a broken state when CDROM volumes were encountered. **What are we doing to prevent recurrence?** * Immediate Fix: We have implemented dedicated handling for CDROM volume properties to correctly differentiate them from HDD/SSD volumes within the storage logic. The fixed release has been published. \(DONE\) * Improved Documentation: Documentation for CDROM entities has been updated to increase visibility and awareness for future development work involving storage volumes. \(DONE\) * Quality Assurance and Pre-Release Testing: Structural improvements are being made to ensure more extensive testing of various scenarios and user journeys. This will increase test coverage and allow for a higher detection rate of edge cases prior to release. \(Ongoing – Q2 2026\)