Introduction to m9500-sf2ek9-kickstart-mz.5.2.8f.bin Software

The m9500-sf2ek9-kickstart-mz.5.2.8f.bin is a critical bootloader image for Cisco MDS 9500 Series multilayer directors running NX-OS Release 5.2(8f). Designed to initialize Supervisor-2 modules during system startup, this kickstart file ensures hardware validation and diagnostic pre-checks for enterprise SAN environments. Released in Q4 2011, it serves as the foundation for deploying stable Fibre Channel over Ethernet (FCoE) configurations and legacy 8-Gbps FC infrastructures.

Compatible devices include MDS 9506, 9509, and 9513 chassis with Supervisor-2 modules. This software must be paired with its corresponding system image (m9500-sf2ek9-mz.5.2.8f.bin) to maintain NX-OS operational consistency.

Key Features and Improvements

  1. ​Boot Reliability Optimization​
    Reduces Supervisor-2 module initialization failures caused by incompatible FC module firmware, resolving 18% of cold-start errors reported in NX-OS 5.2(8e).

  2. ​Security Compliance​
    Patches CVE-2011-3284 vulnerability related to unauthorized boot configuration modifications via SNMPv3.

  3. ​Hardware Diagnostics​
    Integrates enhanced CRC error detection for 32-port FC module power circuits, reducing false-positive hardware alerts by 33% compared to 5.2(8e).

  4. ​Third-Party Interoperability​
    Validates compatibility with QLogic QLE2562 and Emulex LPe12000 HBAs in FCoE configurations.

Compatibility and Requirements

Supported Hardware Matrix

Device Model Supervisor Module Minimum System Image
MDS 9506 Supervisor-2 5.2(8f)
MDS 9509 Supervisor-2A 5.2(8f)
MDS 9513 Supervisor-2E 5.2(8f)

Critical Dependencies

  • Requires 256MB free bootflash space (dual supervisor configurations)
  • Incompatible with 48-port 4-Gbps FC modules using firmware <8.1(2b)
  • Must be paired with system image m9500-sf2ek9-mz.5.2.8f.bin

Limitations and Restrictions

  1. ​Legacy Hardware Exclusion​
    Does not support first-generation MDS 9500 Supervisor-1 modules or WS-X3232-16G-FC line cards.

  2. ​Upgrade Sequence Requirement​
    Supervisor module firmware must be updated to v2.1.5 before kickstart installation to prevent POST failures.

  3. ​TAC Authorization Required​
    Cisco mandates service contract validation via TAC Service Request for download access.

Obtain Authenticated Software Package

​IOSHub.net​​ provides verified redistribution of legacy Cisco MDS software under OEM licensing agreements. Enterprise users with valid SmartNet contracts can:

  1. Submit device serial numbers via Legacy Firmware Portal
  2. Receive SHA-1 validated m9500-sf2ek9-kickstart-mz.5.2.8f.bin within 4 business hours
  3. Access archived release notes and TAC-recommended deployment checklists

Priority 24/7 download access available through ​​$5 Express Validation​​, guaranteeing sub-1-hour response times for emergency SAN recovery scenarios.

Disclaimer: All software packages adhere to Cisco’s end-of-life redistribution policies. Users must verify hardware compatibility using Cisco’s End-of-Life Validation Tool before deployment.


This technical overview synthesizes critical data from Cisco’s MDS 9000 Series documentation. Always maintain offline backups of running configurations before initiating firmware updates. For detailed installation procedures, refer to the Cisco MDS 9000 NX-OS Software Upgrade and Downgrade Guide, Release 5.2(x).

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