Deployment Success

Below are new knowledge base articles published on the week of March 8-14, 2020. KB 7424 - NCC Health Check: metro_invalid_break_replication_timeout_check KB 9000 - NCC reports LSI firmware is blacklisted for DELL XC nodes, when LCM inventory does not have any newer versions KB 9042 - Prism Central session times out unexpectedly when a user logged in with 'Admin' role. KB 9063 - [Karbon] Kube DaemonSet Rollout Stuck Alert; Daemonset wrongly reports unavailable pods KB 9068 - AHV | nutanix-network-crashcart scripts fail with "No module named fc_progress" error on hosts imaged with Foundation 4.5.2 KB 9074 - [Karbon] Kubernetes Upgrade Fails with Error: Upgrade failed in component Monitoring Stack Could not upgrade k8s and/or addons Note: You may need to log in to the Support Portal to view some of these articles.

Below are new knowledge base articles published on the week of March 1-7, 2020. KB 8869 - NGT installation via Prism Central on Windows Server 2016 or more recent Operating Systems fails with INTERNAL ERROR message KB 8905 - How to download images from Prism Element clusters via command line KB 8917 - NCC - ERR : The plugin timed out KB 8993 - Foundation : Upgrade foundation using LCM Dark site bundle KB 8997 - Not able to delete a Role in Prism Central KB 8998 - Era Registration fails if container is not mounted on all hosts KB 9004 - Increased number of connections to File Server once migrated from Windows to Nutanix Files KB 9013 - How to Create a Shared Folder in Windows Server 2016/Windows 10 KB 9016 - Unable to open Java console after BMC upgrade from version 7.00 to 7.05 KB 9028 - ERA-DB provisioned from the OOB template failed to register with ERA server KB 9031 - Prism and Microsoft LDAP Channel Binding and Signing KB 9045 - How to find a VM creation date and time in Prism Cen

Let's say that you have utilized the maximum recommended storage space in your cluster, you have an empty slot for another drive and you want to fill it to expand the storage capacity.   There are different types of drives out there, each of our platforms has it's own specifications and requirements.    To check which drives are compatible with your platform, choose your platform on this page and check out the data drives supported.    Your node will be in one of the following configurations:   1) Hybrid: A mix of SSDs and HDDs.  2) All Flash: can accept only SSDs and can contain only an even number of drives.  3) SSD with NVMe: only certain drives slots can contain NVMe, check the system specification via the link above for more information.   When adding more than one drive to a node, allow at least one minute between adding each of the drives. Check out my colleague Jon Kohler’s reply here where he provided some good caveats for adding drives. Specifically, increasing the hot tier c

Hello, I have a cluster up and running for almost a year now without any particular issues. I haven't logged into Prism for a long time and did so recent, and saw an alert on hat the cluster is not able to check NTP. I have them set for North American NTP servers. I think the real problem may be with Zeus, however, as when I SSH into one of the CVMs and almost any command (bur speciifally 'allssh root@192.168.5.1 date') I get: ================== error: ================= ================== Zeus ================= ================== configuration ================= ================== cache ================= ================== is ================= ================== not ================= ================== created; ================= ================== try ================= ================== again ================= ================== later ================= It is the same with any other command I try to run. Your insight is greatly appreciated.

Suppose you need more disk capacity on a virtual machine in your environment. You choose the VM in Prism, click ‘update’, select to edit the appropriate disk, and change the size of the disk from 200 to 300GiB. You click update and see that the task completes successfully, then close the VM update UI. The VM details reflect the increase in disk space, but when you access the VM it appears the capacity of the drive is unchanged! This is actually expected. There is just a bit more work to be done. The partition will need to be extended following the steps for your VM guest operating system. You can see the steps to complete this in Windows from the KB article “Expand volume group disk size on Windows OS” or if you are using Linux, check the KB article “Increase disk size on Linux UVM” 

Let’s say you received an alert stating that all CVMs are not in the same timezone or all hosts are not in the same timezone.   What does it mean? Well, as simple as the alert indicates, the CVMs/hosts are not in the same timezone. We need to ensure that the same timezone is configured across all the CVMs/Hosts as it ensures that all the guest VMs log messages are timestamped consistently.   How will you know about the timezone issue? There is an NCC health check, “same_timezone_check” in place to inform any discrepancy in the timezones.   To know more about the alerts and errors which can be seen and how to change the timezone, take a look at https://support-portal.nutanix.com/#/page/kbs/details?targetId=kA0600000008hm9CAA   Have any questions? Leave a comment and let’s start a discussion.

How do we browse Nutanix containers from command line to check what is contained in it.

Hi I have confuse about the output of the AHV network command "mange_ovs show_interfaces", In the result, I can check the link status and speed of the NICs. But what is the meaning of mode ? I attached a snapshot as the following that give the output of a node in AHV which have 10Gb and 25Gb nic cards, but the mode all display 10000. What is the meaning of mode?

Hello guys, Can anyone please help with NCC Health Check report on Email? The purpose is to receive NCC Health Check every week on Tuesday at 7.00 AM CET. I configured NCC report frequency via Nutanix Prism Central on each nutanix cluster But now I receive a report each Tuesday and Wednesday at 7.00 AM CET. I have tried a method to disable NCC frequency and setup it newly, but no results, no changes. For configuring I used guide - https://portal.nutanix.com/#/page/docs/details?targetId=Web-Console-Guide-Prism-v55:wc-ncc-frequency-configuration-t.html Thank you in advance

You’re probably aware all the CVMs and hypervisor hosts in a cluster need to have IPs in the same subnet, but what about the IPMI? What are the requirements, and what’s involved in changing the IP? The requirements are actually quite flexible. The IPMI does not have to be in the same subnet as the hosts and CVMs. You’ll see an alert and a cluster health warning if you don’t restart the genesis service on the CVMs after making changes, but the configuration can be whatever works best for your organization. To restart the genesis service, log into the CVM via SSH or console as the user ‘nutanix’ and run the command “genesis restart”. This restart of the genesis service is non-disruptive.  Actually, you can plug the IPMI into an isolated network or configure it on a different VLAN. You could even leave it unplugged when not in use. The IPMI is very useful for installs and updates, and for troubleshooting hardware issues or an unexpected reboot but it is not required for day to day operati

Hi, I want to get these numbers with API call. What is the best way to achieve this? Thanks

We just purchased Nutanix ( 2 Appliances , 3 nodes on each ) , we are planning to use VMware Enterprise plus on them. I've few questions, I would be more than happy if I get the answers: 1- if we used VMware, all Nutanix functions will be applied ? ( for example, if one HD failed, the data will be transfered to another Hard disk? ) 2- If I'm using 3 nodes, and I'm utlizing all the CPU and Memory and HD capabilities for all three, once one node goes down, how the VMs on this node will go to the other nodes while we are utlizing their full capacity? 3- if one node fail, the VMware VMs on this Node will be Automatically moved to another Node ? 4- In general, is there any difference if we used Acropolies or VMware ? will we get the same functions on Nutanix?

How can I reset a node to factory configuration after using the fundation process

Hi team,   i have question about prism central, if i enable feature like a flow ( as long i know, flow need prism central to enable and operate ), and i configure isolation or secure application for my vm,  what happen if my prism central down?

Greetings to all, After an update of the AOS from 5.8.2 to 5.10.5, the following alerts began to be received: IPMI sensor mismatch IPMI sensor data unavailable on host This is in a cluster with 3 Lenovo HX host, and all hosts have the same configuration when the cluster was created with the Foundations, I have already reviewed the access to the network to the BMC port and all the IPs respond and the users and passwords with correct. https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.resmgmt.doc/GUID-D247EC2C-92C5-4B9B-9305-39099F30D3B5.html This cluster uses the ESXi 6.5 hypervisor with vCenter 6.5, the information in the ESXi on the IPMI has already been added. The 3 CVM's respond to the ping between them and the BMC ports. Is there any parameter within the CVM that should be reviewed or from the PRISM console?

We are trying to setup SCOM Management Pack 2.4 with SCOM 2012 server. I have created LDAP (Windows Domain) account for Prism and IPMI access, i do able to validate with prism account but i could not IPMI. I am using AOS 10.5 with NX 1065 G6. I have tried to create IPMI local account and then tried to validate SCOM Management pack. It worked fine. I tried to validate with LDAP account but i am getting below error. for better administration i am trying to use LDAP. error validating ipmi account with "x.x.x.x" IP. Continue with next CVM Address? I have opened case with Nutanix. Just i want know whether Nutanix support to configure LDAP auth with SCOM. Any help will be much appreciated.

I'm trying to create a vm from our CentOS75 gold image. Pallavi Akella from Nutanix created the CentOS gold image using Disk and not an ISO. When I provision vms using powershell script. update the Clone.csv where I enter the following info name,VlanID,VMRam,Vcpu,cores,VMIP,clone,Image name,VlanID,8,2,2,VMIP,CentOS75, and save the file. Next I run cloneNTNX.ps1 script to provision the vm. This script also runs connect-Nutainx.ps1 and Create-NTNXVM.ps1 script. When I run the cloneNTNX.ps1 script I get below error. PS C:\Users\srananavre-a> cd C:\_Mis\NTNX\scripts PS C:\_Mis\NTNX\scripts> .\cloneNTNX.ps1 Not connected to any server. Please connect to a server and try again. Nutanix Cluster: Username for : Password for [Warning]: Cluster version[5.10.1.1] and Cmdlets version[5.5] do not match. This might cause some cmdlets to not functin correctly. Do you still want to continue [Y/N]?: y Connected to Checking if VM already exists... No data found. Creating na

Hello is there a way to automatically install NGT guest tools without manually cdrom mounting process ? I want to use Packer to generate a centOS 7 golden image with preinstalled NGT guest tools thanks Gilles

I want to exclude some disks from my snapshot, using Rubrik on my Nutanix VM. I use the script from rubrik (which is a Patch) to exclude some disks from my nutanix vm like this: { "excludeDiskIds": [ "diskid1", "diskid2" ] } I get these disks id from the nutanix API (which is a get), but when I snapshot the machine from Rubrik the disks are still included. Am I doing something wrong? Is the "Nutanix Disk ID" equal to the one requested from the Rubrik script?  Thank you

What is the recommended maximum storage utilization in a cluster? Customers can observe cluster issues when they use more than 90 percent of the total available storage on the cluster. Here is a brief explanation on the recommended storage utilization in respect to the replication factors 2 & 3.  For a cluster to be considered healthy and functioning as expected, the cluster has to tolerate at least one node failure for data resiliency.  Here is an explanation on how much free space you need and how to calculate it.   The formula for calculating the maximum recommended usage for clusters is one of the following: Recommended maximum utilization of a cluster with containers using replication factor (RF)=2 M = 0.9 x (T - N1) Recommended maximum utilization of a cluster with containers using replication factor (RF)=3 M = 0.9 x (T - [N1 + N2]) M Recommended maximum usage of the cluster T Total available physical storage capacity in the cluster N1 Storage capacity of the node with t

Can existing cluster expand cluster new node with different subnet?     Thanks,   Hendra

Let’s say you want  high availability at the NIC level  and failover capacity to the CVM and user VMs. We recommend using  balance-slb to take advantage of all adapters. Balance-tcp is a load balancing method that increases host and VM bandwidth utilization beyond a single 10 Gb adapter by balancing each VM NIC TCP session on a different adapter. Also used when network switches require LACP negotiation."   Advantages of Bond Mode for balance-slb Balance-slb bond mode in OVS (Open vSwitch) takes advantage of all the links. Rebalance VM traffic from the interface that is used extensively to less used interfaces. When the configurable bond-rebalance interval expires, OVS uses the measured load for each interface and the load for each source MAC hash to spread traffic evenly among links in the bond.  Traffic from some source MAC hashes may move to a less active link to more evenly balanced bond member utilization.   Here is an article that describes the impact of the change and the s

Let's say you want to mix platforms, nodes or a sub-components in your cluster, what are the restrictions?  There are multiple components that you could mix, we took everything into consideration and explained it’s compatibility. In our portal, you can find the Hardware, OS, Storage, Encryption, DIMM, Hypervisor and vSphere restrictions. check out our Compatibility Matrix. For example, if you want to mix the hardware you can mix nodes that use different CPU families in the same cluster, but not in the same block.  e.g, a cluster can contain nodes from any NX generation, but a G6 block must contain only G6 nodes, a G7 block must contain only G7 nodes, and so on. For AOS, all the Controller VMs (CVMs) in a cluster must use the same version of AOS. Note: do not configure a cluster that violates any of the rules as it could lead to an unexpected behavior.  For the full documentation and rules check out this: https://support-portal.nutanix.com/#/page/docs/details?targetId=Hardware-Admin-Ref

Hello,I have a hybrid cluster (3 nodes) with 2x1,9TB SSDs and 10x4TB NL-SAS drives. Is it possible to replace all the disk in the cluster to make it all-flash? What would be the procedure? Thanks!!

Hi,   Foundation version 3.6-74ea4a6f download, Give me the link. (Standalone Foundation VM image for importing into VirtualBox or ESXi)   I am going to test with an old version Foundation(3.6-74ea4a6f). I don't have this version. Do you have a download link?   Thank you.