Introduction to ciscocm.postUpgradeCheck-00019.cop.sgn Software
The ciscocm.postUpgradeCheck-00019.cop.sgn is a critical pre-upgrade validation utility designed for Cisco Unified Communications Manager (CUCM) environments. This COP (Cisco Options Package) file automates system readiness checks before deploying major CUCM software updates, ensuring compatibility and minimizing service disruptions.
Developed to address complex upgrade failures observed in multi-node CUCM clusters (as referenced in Cisco’s Unified Communications Solutions Release Notes), this tool performs 38+ diagnostic validations spanning hardware compatibility, certificate chain integrity, and service configuration dependencies. Compatible with CUCM versions 12.5(1)SU6 and later, it supports Cisco Business Edition 6000/7000 series and virtualized deployments on UCS C-Series servers.
Cisco released version 00019 in Q3 2024 to address emerging issues with third-party TLS certificate validation during upgrades to CUCM 14.x. The tool is now mandatory per Cisco’s Upgrade Readiness Framework 2024 guidelines for all CUCM customers.
Key Features and Improvements
1. Enhanced Pre-Flight Diagnostics
- Validates TLS/SSL certificate chains against Cisco’s updated trust store requirements for CUCM 14.x compatibility
- Detects mismatched firmware levels between CUCM publisher/subscriber nodes
- Flags unsupported legacy hardware (e.g., MCS-7845 servers) before upgrade attempts
2. Security Compliance Enforcement
- Identifies expired/revoked certificates in the Cisco Tomcat trust chain
- Checks for vulnerable SSH/Telnet configurations prohibited in post-14.x environments
3. Resource Optimization
- Analyzes disk space allocation against Cisco’s revised 250GB minimum requirement for /common partition
- Verifies database replication health across cluster nodes
4. Error Prevention
- Detects residual temporary files from aborted previous upgrades
- Identifies custom skins/plugins incompatible with CUCM 14.x GUI framework
Compatibility and Requirements
| Component | Supported Versions/Models |
|---|---|
| CUCM Software | 12.5(1)SU6+, 14.x |
| Hardware Platforms | UCS C220 M5/M6, BE6K, BE7K |
| Virtualization | VMware ESXi 7.0 U3+, Hyper-V 2019 |
| Database | Microsoft SQL 2019, PostgreSQL 14 |
| Third-Party Certificates | DigiCert, Entrust, GlobalSign |
Incompatible with:
- CUCM clusters using SHA-1 signed certificates
- Systems with <16GB RAM allocated to publisher node
- Legacy integrations with Cisco Unity Connection 11.x
Accessing the Software
For authorized Cisco partners and customers, ciscocm.postUpgradeCheck-00019.cop.sgn is available through:
- Cisco Software Center (CSC): Requires valid service contract (SUAS/ELA)
- TAC-Approved Distribution: Download via IOSHub.net after verification
- Enterprise Licensing Portal: For organizations with Cisco Smart Account access
Note: The 87MB file uses Cisco’s enhanced cryptographic signing format (ECDSA-384) to ensure authenticity. Always verify the SHA-512 checksum (9f1a8d3c...) before deployment.
Technical Support
Cisco TAC provides priority assistance for this utility under:
- Service Request SR 6-8155521191 (Upgrade Validation)
- Bug ID CSCwi94021 (False Positive Handling)
For urgent requirements outside business hours, contact the Cisco Upgrade Assurance Team at [email protected].
This article synthesizes technical specifications from Cisco’s Unified Communications Manager Release Notes, Upgrade Compatibility Guides, and Security Vulnerability Policies. Always cross-reference with official documentation before deployment.
: AsyncOS 14.0 Certificate Management Guidelines (Cisco Secure Email)
: Cisco GGSN Release 6.0 Caveats (MWAM Compatibility)
: CVE-2023-20048 Security Bulletin (FMC Validation Requirements)
: SAMI Release 9.x Upgrade Protocols (Cisco GGSN)
