AMA: Installation and Upgrade of Cisco HyperFlex

[Brooke Hammer]

Ask Me Anything Event

Welcome to the Cisco Support Community Ask Me Anything conversation. Are you using an old release of Cisco HyperFlex? Not the recommended one? You need to know more about the upgrade best practices? This session is for you. This session will focus on practical guidance on how to plan for a successful upgrade and deployment of Hyperflex, while avoiding common issues that may result in failures or outages. Join our experts in the AMA session, which will help simplify the HyperFlex upgrade and installation process.

Note: Please post your post as a comment below no later than May 26, 2023.

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Our experts

Akash Malla is a Technical Consulting Engineer with Cisco HyperFlex solution team in Asia Pacific time zone. Currently, he is working as a Team lead for Cisco HyperFlex Team located in India. He has wide expertise in troubleshooting, managing, and deploying Cisco HyperFlex and Cisco UCS as a solution and is a contributor to the Cisco knowledge base. He holds an engineering degree in Electronics and Communications, and he is a Cisco Certified Specialist - Data Center Design.

Tarun Agarwal works in the Asia Pacific region as a Technical Consulting Engineer for the Cisco HyperFlex solution team. He has around 9 years of expertise in server virtualization domain. He is now working in India as a Team Lead for the Cisco HyperFlex Team. He has extensive experience designing, implementing, and troubleshooting Cisco Hyperflex, UCS, and VMware solutions. He holds a bachelor's degree in Electronics and Communications engineering and is a VMWare Certified Professional.

For more information, visit the Data Center discussion forums . If you have questions or are experiencing technical problems with any of the Cisco products, post your question, request information or use the Cisco Community before opening a case with the TAC.

[Siddharth Dhingra]

Can we perform hyperflex deployment when the servers are integrated with single link only?

[Akash Malla]

Hi Siddharth,

Thank you for your query.

Single link deployment would not work. HX installer will try to deploy the vNICs on both fabrics and association will fail in case of single active link.

Preinstallation Checklist for Cisco HX Data Platform also explains this as a note : "Single FI HX deployment is not supported." (https://www.cisco.com/c/en/us/td/docs/hyperconverged_systems/HyperFlex_HX_DataPlatformSoftware/HyperFlex_Preinstall_Checklist/b_HX_Data_Platform_Preinstall_Checklist.html)

Please feel free to post, in case any further queries.

Regards,

Akash Malla

[Mehul More]

Hi Team,

We are planning to Change IP Schema of HX Cluster. Need to know which are the precaution steps We need to follow.

Regards,

Mehul More

[Akash Malla]

Hello Mehul,

Thank you for your query.

Changing Hyperflex management IPs is a TAC supported workflow. Open a TAC case and our engineers will help you with the flow.

Changing Hyperflex data IPs requires re-installing the cluster from scratch (backup/wipe/redeploy).

Let me know if you have further queries on that.

Regards,

Akash Malla

[Mehul More]

Hi Team,

During Upgrade We face issue Like During Esxi upgrade "Configuration Upgrade Failure
Please reboot to rollback to the older version
Failed modules:
/usr/lib/vmware/configmanager/upgrade/lib/libupgradesnmpmodule.so

[Akash Malla]

Hello Mehul,

Thank you for your query, there is a KB article reporting similar condition https://kb.vmware.com/s/article/76239 

To workaround this issue
  1. Reboot the ESXi host to revert to the previous version.
  2. Replace weak authentication protocol (MD5) with SHA1 and reconfigure v3 users.
  3. Now perform the upgrade.

Note : In case you are not using the snmp configuration, we have also seen cases where a reset of SNMP configuration to default can be done using command "esxcli system snmp set -r" and upgrade can be tried again.

JFI,Your snmp configuration can be checked using command "esxcli system snmp get"

[Rahil Abrol]

Hi All,

Any documentation for port requirements for hyperflex? Need some detailed info.

Thank you

[Akash Malla]

Hello Rahil,

Thank you for your query.

Port requirement is briefly explained in HyperFlex hardening guide :   https://www.cisco.com/c/dam/en/us/support/docs/hyperconverged-infrastructure/hyperflex-hx-data-platform/HX-Hardening_Guide.pdf

Please review "Appendix A: Networking Ports"

Let me know if you have further queries on that.

Regards,

Akash Malla

[Rahil Abrol]

Tried to change the cluster and datacenter name in VC, is that all or do I need to do something from HX?

Thank you

[Akash Malla]

Hello Rahil,

There is a Reregistration Process that needs to be executed from the controller VM. 

The process is explained over link:  https://www.cisco.com/c/en/us/support/docs/hyperconverged-infrastructure/hyperflex-hx-data-platform/214504-ucs-hyperflex-changing-vcenter-cluster.html 

We have a video published as well for same : https://www.youtube.com/watch?v=QqJQRCaQmk0 

Regards,

Akash Malla