IBM Cloud’s Chennai 01 data center, CHE01, is scheduled to discontinue operations on 10 June 2027. That is not the only date an affected team needs to plan for. IBM’s published timeline includes earlier provisioning restrictions, a network-maintenance event, a migration-assistance cutoff, and a separate PaaS migration deadline.
This article summarizes the official notice as reviewed on 11 September 2026, then gives an independent planning checklist. It applies to affected CHE01 workloads; it does not mean every IBM Cloud workload in Chennai or India must move. Confirm the location and service type of each resource before drawing up a migration plan.
The dates that should be on the plan
| Date | IBM’s published milestone | Planning implication |
|---|---|---|
| 11 June 2026 | End-of-market announcement to impacted accounts | Locate the account notice and identify the resource owners. |
| 15 June 2026 | Provisioning limited to allowlisted accounts already consuming services in CHE01 | Do not assume unrestricted expansion in the old location. |
| 10 December 2026 | New service deployment removed for all accounts | Make capacity planning and the destination decision before this cutoff. |
| 9 April 2027, 14:00 GMT | Network maintenance; the notice describes disruption and a need to contact IBM to restore service | Treat this as an operational risk ahead of final closure. |
| 12 April 2027 | Migration-assistance request window closes | Request help early enough for discovery and execution. |
| 30 April 2027 | PaaS migration window closes | Move Kubernetes Service and affected PaaS before suspension and reclamation. |
| 10 June 2027 | IaaS migration window closes | Complete IaaS migration before suspension and reclamation; the notice states no extension period is available. |
Recheck the official notice during planning and before each change window. A deadline table copied into an internal document can become stale if the provider updates its guidance.
1. Inventory dependencies, not just servers
For each workload, identify compute, attached storage, databases, load balancers, public and private IP dependencies, DNS records, certificates, firewall allowlists, scheduled jobs, backup targets, and external integrations. Record the business owner and the service-specific cutoff. A migrated virtual server can still be unavailable if an upstream system only allows the old egress IP.
Classify data by recovery point objective and downtime tolerance. Note which services can replicate online, which require export and import, and which need application-level reconciliation. Do not assume that a snapshot alone captures a consistent multi-service application state.
2. Choose a destination using workload requirements
IBM’s notice says customers can choose a worldwide IBM Cloud data center and highlights newer Chennai and Mumbai locations. Validate actual service availability, capacity, network connectivity, latency, data-location requirements, and the destination architecture. A city name is not a substitute for checking the specific region, zone, and service offering.
For critical systems, assess whether the move should also remove a single-zone dependency. That is an architecture decision with cost and complexity implications. Keep the essential migration scope clear so an ambitious redesign does not put the deadline at risk.
3. Prove restore and cutover before the final window
Restore representative data into the destination and run application-level validation. Test authentication, reads and writes, background processing, outbound connections, and monitoring. Capture checksums or business-level record counts where they provide useful evidence; a booted machine alone is not a successful migration.
Document the traffic-switch mechanism and DNS behavior, including resolver caching. Define the write-freeze or replication catch-up procedure, a named decision-maker, and the point after which rollback needs data reconciliation. Rehearse the procedure in a non-production environment or an appropriately isolated rehearsal.
4. Reserve time for stabilization and retirement
Schedule the migration with buffer ahead of the applicable provider milestone. During stabilization, watch application errors, latency, data consistency, queue depth, and downstream integrations. Keep backups and migration evidence according to your retention requirements.
Retire the old resources only after owners sign off and data has been validated. Track IP allowlists, credentials, replication tasks, monitoring rules, and backup jobs so they do not continue targeting CHE01. Confirm billing and resource inventory after retirement rather than assuming a traffic switch removed the old resources.
A useful question for the community
When posting in the IBM Cloud forum, include the service type, whether the resource is actually in CHE01, expected data size, downtime tolerance, destination under consideration, and the migration step causing difficulty. Keep customer information and private infrastructure addresses out of public posts.
Sources and review
- IBM Cloud: CHE01 closure and official milestone table
- IBM Cloud platform updates, 11 June 2026 announcement
The deadline summary comes from IBM’s documentation. The planning checklist is ReadMeFeed’s editorial guidance and should be adapted to the workload’s service-specific migration instructions.