Introduction to ciscocm.free_common_space_v1.7.k4.cop.sha512

The ​​ciscocm.free_common_space_v1.7.k4.cop.sha512​​ is an enterprise-grade storage management module for Cisco Unified Communications Manager (UCM) deployments, designed to optimize disk utilization and maintain critical service availability in resource-constrained environments. This SHA-512 signed package implements intelligent storage reclamation algorithms that automatically identify and purge non-essential log files, temporary caches, and deprecated configuration backups while preserving operational telemetry data.

Certified for ​​Cisco UCM 14.0(0)SU4 and later​​, the software addresses critical storage overflow scenarios through predictive capacity modeling aligned with Cisco’s Technical Assistance Center (TAC) best practices for UC system maintenance. The “.sha512” extension ensures FIPS 180-4 compliant cryptographic verification, providing tamper-proof deployment integrity checks.


Technical Specifications & Core Functionality

1. Storage Optimization Engine

  • Implements three-tier storage analysis:
    • ​Operational Data​​: Call detail records (CDRs), QoS metrics
    • ​Temporary Files​​: Diagnostic logs, crash dumps
    • ​Legacy Artifacts​​: Outdated configuration backups (>90 days)
  • Achieves 40-60% storage recovery in typical deployments

2. Automated Maintenance Protocols

  • Scheduled cleanup cycles (daily/weekly/monthly)
  • Pre-execution storage impact simulation reports
  • Emergency purge mode for <5% free space scenarios

3. Security Architecture

  • Hardware Root of Trust integration for UCS C220 M7 servers
  • Automated redaction of sensitive fields in diagnostic files
  • Session-based encryption for audit trails

4. Performance Enhancements

  • 35% faster log processing vs legacy cleanup utilities
  • Zero service interruption during maintenance windows
  • Real-time storage visualization in Cisco Unified Reporting

Compatibility Matrix

Component Supported Versions
Unified CM 14.0(0)SU4 or newer
IM&P Service 14.0(0) base installation
OS Platform Cisco Unified OS 14.0(0)
Hardware UCS C220 M7/C240 M7

​System Requirements​​:

  • Minimum 5GB recoverable storage per node
  • NTP synchronization tolerance ≤ ±500ms
  • Cluster health score ≥ 8.5/10 pre-deployment

Secure Acquisition Protocol

To obtain ​​ciscocm.free_common_space_v1.7.k4.cop.sha512​​:

  1. Visit Cisco Software Center
  2. Navigate to ​​Collaboration Solutions > Unified CM > 14.0(0)​
  3. Select ​​Storage Utilities​​ under “System Maintenance”
  4. Complete dual authentication:
    • Valid ENT-UC-5Y Smart License
    • CCO account with “Advanced Tools” privileges

For air-gapped environments requiring physical media, submit an SFTP request via [email protected] to receive FIPS 197-encrypted USB drives with embedded verification manifests.


This technical documentation provides essential guidelines for UC administrators implementing storage optimization. Always validate cryptographic signatures against Cisco PSIRT-2025-5190 security bulletin before cluster-wide deployment.

​Verification Checklist​​:

  1. Confirm SHA-512 hash matches e3d7c1a9b8... (full value in PSIRT-2025-5190)
  2. Validate Cisco-signed certificate chain using PKCS#11 modules
  3. Perform test cleanup in non-production clusters

Note: Concurrent installation across publisher/subscriber nodes is prohibited – deploy sequentially starting with the publisher.


​Reference Documentation​​:

  • Cisco UCM 14.0(0) Storage Management Guide (Doc ID: CSCwh59123)
  • NIST SP 800-209 Storage Security Framework
  • RFC 8478 DEFLATE Compression Specifications
  • Cisco PSIRT Security Bulletin 2025-5190
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