Recommended IOS for MDS C9148T

[Mahmoud Marie]

Hello 

We have MDS C9148T with version 8.3 and need to upgrade it, while checking Cisco website see two recommended version:

(8.4 2f) and (9.4 2a). so which one should I go to.

Appreciate your help 

Thanks

[Mark Elsen]

  - Normally you would go for the latest; I would suggest that you compare the Release Notes  for both versions , to be able to decide in the context of your current storage environment,

 M.

[balaji.bandi]

Higher version is better that has a latest features and bug fixed and security fixes.

Make sure your hardware support and you have correct verion to go to latest verison.

[Jason Mooney]

I'm more of a visual person, a coleage orignially created this slide, and I've been keeping it up to date. This representats when each NX-OS version was released.  The Star indicates it's a current recommended release as of this writing.

I ran out of room for 9.4(3), but that was released 12/6/2024.

MDS Release Notes: https://www.cisco.com/c/en/us/support/storage-networking/mds-9000-nx-os-san-os-software/products-release-notes-list.html
Non-Disruptive Upgrade Guide:  https://www.cisco.com/c/en/us/support/docs/storage-networking/mds-9000-nx-os-san-os-software/118952-technote-mds9k-00.html

End of Sale / End of Life announcements:

Cisco MDS NX-OS 8.4(2), 8.4(2a), 8.4(2b),8.4(2c),8.4(2d), 8.4(2e), 8.4(2f) end-of-support September 30, 2029
https://www.cisco.com/c/en/us/products/collateral/storage-networking/mds-9000-nx-os-san-os-software/mds-nx-os-8-4-2-2a-2b-2c-2d-2e-2f.html

Cisco MDS NX-OS 8.1(1), 8.1(1a), 8.1(1b), 8.2(1),8.2(2), 8.3(1),8.3(2), 8.4(1),8.4(1a),8.5(1) end-of-support April 30, 2027
https://www.cisco.com/c/en/us/products/collateral/storage-networking/mds-9000-nx-os-san-os-software/mds-nx-os-eol.html