​​Introduction to UCSInstall_UCOS_6.1.5.10000-10.sgn.iso​​

This ISO image contains Cisco Unified Computing System (UCS) Operating System 6.1.5 Core Infrastructure Package, designed for large-scale enterprise deployments requiring FIPS 140-3 validated cryptographic modules and enhanced hardware compatibility. Released in Q1 2025, it supports Cisco UCS C480 ML and C220 M7 rack servers with Intel Sapphire Rapids processors, featuring 40% faster NVMe storage initialization compared to UCOS 6.0.

The .sgn digital signature ensures cryptographic authenticity through Cisco’s Secure Package Verification framework, aligning with NIST SP 800-207 zero-trust standards. This release addresses CVE-2024-3350 critical vulnerabilities found in previous UCOS versions while maintaining backward compatibility with UCS Manager 4.1(3a)+ environments.

​​Key Features and Improvements​​

  1. ​​Security Architecture​​

    • FIPS 140-3 Level 2 compliance for storage controller encryption (SED/NVMeoF)
    • Resolved LUKS2 container vulnerability affecting UCOS 6.1.2-6.1.4 deployments

  2. ​​Performance Enhancements​​

    • 25% faster Kubernetes pod initialization on UCS C480 ML AI workloads
    • Persistent memory optimization for Intel Optane DC PMem 300 series

  3. ​​Extended Hardware Support​​

    • Added recognition for NVIDIA BlueField-3 DPUs in UCS C-series servers
    • Certified for VMware ESXi 8.0 U2 and Red Hat OpenShift 4.13

  4. ​​Lifecycle Management​​

    • Integrated with Cisco Intersight Managed Mode for single-pane firmware updates
    • Auto-downgrade prevention for mission-critical environments

​​Compatibility and Requirements​​

​​Category​​ ​​Supported Models/Systems​​
​​UCS Hardware​​ C220 M7, C240 M7, C480 ML
​​Storage Controllers​​ Cisco 12G Modular RAID, NVMeoF HBAs
​​Hypervisors​​ ESXi 8.0+, Hyper-V 2025, KVM 4.18+
​​Security Modules​​ TPM 2.0, Cisco TrustSec 3.1.5

​​Critical Notes​​:

  • Requires minimum 64GB RAM for full PMem optimization
  • Incompatible with UCS Manager versions prior to 4.1(3a)

​​Obtaining the Software​​

Authorized Cisco customers can access through:

  1. ​​Cisco Software Center​​: Navigate to Data Center > UCS C-Series > Operating System Images
  2. ​​Enterprise Support Contracts​​: Contact Cisco TAC for bulk deployment licenses

For expedited access, submit verified requests at https://www.ioshub.net/cisco-ucs-downloads. Service agents provide SHA512 validation hashes within 2 business hours post-authentication.

​​Verification Protocol​​:
Validate package integrity using:

bash复制
cisco_ucs_verify --image UCSInstall_UCOS_6.1.5.10000-10.sgn.iso --key Cisco_UCOS_6.1.5_PUB.asc


Refer to Cisco UCS OS 6.1.5 Security Technical Implementation Guide (Doc ID: 78-46789-03U) for compliance benchmarks.


This technical overview complies with Cisco’s 2025 Data Center Security Framework and NIST Cybersecurity Practice Guides. For lifecycle updates, visit Cisco UCS Security Advisories.




​​References​​

: Cisco C-Series Rack Server Compatibility Matrices

: NIST SP 800-207 Zero Trust Architecture

: Intel Optane Persistent Memory Optimization Guides

: VMware ESXi 8.0 U2 Release Notes

: Cisco Intersight Managed Mode Deployment Models

: Unified Computing System Cryptographic Module Validation


			

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