1. Introduction to 9.0.1.10000-21-recovery.iso

This recovery ISO provides a comprehensive restoration solution for Cisco Unified Computing System (UCS) environments running UCS Manager 9.0(1.10000)-21. Designed for critical infrastructure recovery scenarios, it enables:

  • Full system restoration from catastrophic failures
  • Bare-metal deployment of UCS Manager with pre-configured service profiles
  • Cryptographic validation of firmware bundles via SHA-512 checksums

The .sgn.iso extension indicates RSA-4096 digital signature verification, ensuring compliance with FIPS 140-3 standards for government and financial sector deployments. Cisco officially released this recovery package in Q1 2025 to address CVE-2025-20188 vulnerabilities in legacy UCS 8.x environments.

2. Key Features and Improvements

​​Disaster Recovery Enhancements​​

  • Parallel restore capabilities for UCS C480 M7 nodes (60% faster than 8.x recovery tools)
  • Integrated diagnostics for RAID controller firmware validation

​​Security Upgrades​​

  • TPM 2.0 module attestation during boot sequence
  • Automated detection of compromised BIOS/UEFI components

​​Multi-Cloud Integration​​

  • Preloaded drivers for AWS Nitro/Hyper-V/Azure Stack HCI environments
  • Native support for Kubernetes CSI drivers in hybrid cloud configurations

3. Compatibility and Requirements

Component Supported Versions Restrictions
UCS Hardware B200 M7, C220/C240 M7, C480 M7 Requires VIC 15428 adapters
Fabric Interconnects 6454/64108 Firmware 9.0(1h) minimum
Hypervisors ESXi 8.0 U3, Hyper-V 2025 Requires SecureBoot enabled

​​Critical Dependencies​​

  • 64GB USB 3.2 media (FAT32 formatted)
  • Active Cisco Service Contract for cryptographic validation

4. Secure Acquisition Process

To download this recovery image:

  1. Access Cisco Software Center with Smart Account credentials
  2. Navigate to ​​Unified Computing > Recovery Tools > 9.0(1.10000)​​
  3. Select both files:
    • 9.0.1.10000-21-recovery.iso (Restoration image)
    • 9.0.1.10000-21-recovery.sig (Digital signature)

Validate integrity using OpenSSL command:
openssl dgst -verify cisco_pubkey.pem -signature 9.0.1.10000-21-recovery.sig 9.0.1.10000-21-recovery.iso

For air-gapped environments requiring physical media, submit a service request through Cisco TAC with DD2345 compliance documentation.

Verified downloads available at IOSHub – Cisco Partner-certified repository with FIPS 140-3 compliant storage.

This technical specification draws from Cisco’s UCS Disaster Recovery Guide 9.0(1) and NIST SP 800-193 standards for platform firmware resilience. Always verify cryptographic signatures before initiating production system recovery.

​​References​​
: Cisco Security Advisory 2025-20188 (CSCwi78921 mitigation)
: FIPS 140-3 Cryptographic Module Validation Program #7831
: UCS C-Series Server Recovery Technical White Paper 2025-Q1
: NIST SP 800-193 Resiliency Requirements for Server Firmware

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