5 Essential Tips for Maximizing Your Experience at Nutanix .NEXT for Bloggers
@AChurn As you know this “ssh” communication allows information exchange between the hyperviosr and controller VM (CVM) which controls all I/O to the storage disks in the node. Let us know how it goes, I am curious if they will come up with a reason not grant this exception for our internal vSwitch.
@EH_GIP_SYSTEMS /David, I can confirm that cluster performance and operations may not be affected by simply chaining the IP address to another subnet or vlan. The determining factors (given the fact that the hypervisors and CVMs are configured correctly) are the new switches and routers involved, as they need to be configured properly so they can accept cluster network packets and route them to the correct destinations and mange the network traffic. To get back to your point, if you have the option of the moving the involved switches and routers with the hypervisors and configure them in the new environment exactly the same as before (which may be a hard task to make sure the network devices can access all they need Internally and externally), then you need not change any thing on the cluster side. However, I believe you may be better off just arranging for the change of cluster IP following the document mentioned and of course with help from our support as was mentioned by myself a
@hienle you mentioned:But when I looked into the container to find the uploaded files via command line Could you please let us know what command you run and where did you run it.As you may know, on PC (Prism Central), you can run:nuclei image.listto make sure you have the VirtIO on the PC.This is basically the “PC command line” version of what @Mutahir mentioned in the above note. If it is not there re-upload it.
@AChurn The vSwitchNutanix is used for local communication between the Controller VM and the ESXi host. It has no uplinks. The packets between VM and hyperviosr do not go through any network cables connecting to the physical network devices. Based on that I would say definitely leave it alone.Let me know if this addresses your concerns or you need further clarificationsRegards, Said
@johng I second @badonders comment about the issue. Mapping external iscsi storage or mounting and NFS share from outside Nutanix cluster, by a VM inside a cluster, only requires the VM networking have access to the servers. Also, mounting them from hypervisor will work, but NCC will keep complaining about non-Nutanix storage. It won’t affect anything if you an tolerate the ncc warnings.
@EH_GIP_SYSTEMS /David, To begin with, the perfromance in the cluster does not depend on what Ip address the cluster components have. So you can change IP addresses for the cluster components and expect the same perfromance if the connecting devices like switches and routers are configured to handle the new IP addresses and vlan in the environment. The best document I know, to perform the task is: “https://portal.nutanix.com/#/page/docs/details?targetId=Advanced-Setup-Guide-AOS-v511:ipc-cvm-ip-address-reconfigure-t.html” The above is for AOS 5.11 and the components associated like hypervisor and IPMI. You can get the same document for older releases as well, they are mostly similar as long as your AOS is not several years old (Anything above AOS .5.5 should work). There is a script that does the job called ”external_ip_reconfig” that does the real change, but for this to work properly you need to follow all steps recommended there, as missing a necessary step can cause un-necessar
@willw on the top of what what was said and pointed by @RichardsonPorto about the performance and what you found out regarding Files analytics, “Redundancy” is something you can count on with Files. If you are using distributed shares for user home folders and one FSVM goes down there won’t be a loss of “Service” like it could be the case for Windows file server. Also, with Windows file server you will need to bring down the server for “updates and patching”, with Files no downtime. Another feature is the ability of the cluster to generate alerts when something is wrong with File servers, with Windows you have to check the event viewer.Hope these are trades that could make it worth switching to Files.
@SankarArumugam I hope you have managed to touch base with Nutanix Support by now. However, if you are still concerned about this issue, below are steps to help. 1- Make sure this is not a production system running VMs in the cluster as these steps can cause “data loss”. The steps 2 and 3 may be skipped depending on you have licensed the cluster or have “encrypted disks” in the cluster.2- Reclaim Licenses if possible in present state of the cluster nutanix@cvm$ ncli -h true nutanix@cvm$ $ ncli license reset license3- Check if the cluster has SED disks that are encrypted: nutanix@cvm$ ncli data-at-rest-encryption get-status | grep ProtectionThe output should say “disable”4- Change to Nutanix directory: nutanix@cvm$ cd /home/nutanix5- Create .node_unconfigure file in the above directory nutanix@cvm$ touch .node_unconfigure6- Restart genesis; this step will wipe all cluster data from the node nutanix@cvm$ genesis restartRepeat steps 3 through 6 on all nodes in th
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