Deployment Success

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.

On your Nutanix and vSphere cluster you may have recently seen this alert stating “Storage Containers are not mounted on all nodes”. This may have started showing up after some cluster modifications or maintenance, or could have appeared after some recent upgrades.  You’re probably wanting to know, what is this alert for? How big of a problem is it and what do we need to do to fix it? I’d like to answer those questions for you. This alert is generated through a recurring NCC check “Storage Container Mount Configuration”. First off it’s useful to know that the main purpose of this check is to validate the configuration of  a Metro Availability pair of Nutanix/ESXi clusters. That’s why this check is categorized under the data protection checks. The command to run this check from the CVM CLI is “ncc health_checks data_protection_checks protection_domain_checks storage_container_mount_check”. As for the impact of the problem being reported I’d have to say it’s conditional. The briefest way

Can someone confirm the drive placement for SSD and the SATA drives in our Dell XC740xd servers?   On one cluster of servers, there are four SSD drives in bays 0-3 and in the other two clusters the SSDs are in the last four bays.    I have only seen the SSD drives in the first four drive bays.

Hi,Our metro cluster is running AOS5.10.8.1 (since yesterday’s update from AOS 5.10.8) on x8 NX-8035-G6. During an LCM update for bios and HDD, a node failed due to a bad DIMM. The node pair were eventually evicted from the meta data ring at which point support were supplying a replacement DIMM. After a lot of coaxing both nodes were back in the cluster and hosting vSphere6.5 without any apparent issue, however, since the outage we are being warned in PC\PE and NCC that the active and standby PDs are not mounted on all nodes, even after manually ensuring that the containers are available and connected correctly. Support have advised that this is a known NCC error and just wondered if anyone else in the community has experienced this issue? Thanks in advance

 There may come a time when you must expand your cluster storage capacity since you predict more data will be added to the cluster in the near future.Also, you are already short of space and cannot gain any more space by deleting the old snapshots and removing VM not needed any more, etc.In that situation, assuming you have empty slots in your hardware chassis and depending on the type of the drive you are adding you will need to follow the instruction in your nutanix portal document titled “Adding a Drive”.If you do not have any more disk slot on your hardware to, you may have to add a new node to your cluster altogether, so it can expand the capacity of your cluster. This has the benefit of adding memory and cpu resources as well.

Hi    I followed the steps in page to upgrade NCC. I can upgrade NCC by a single installer file (ncc_installer_filename.sh) successfully. But I cannot upgrade NCC by a compressed tar file (ncc_installer_filename.tar.gz). After extract the installation package, I type command to run the install script as below. It showed “Installation of ncc failed on node xx.xx.xx.xx” . I tired to run the script on each cluster, they generated the same error. How to troubleshoot the issue?   

is there any storage motion or container motion if i using ahv? and if not, how we move vm data from one container to another container?

Hi, I am trying to create a VM using the v3 API and have a question about creating the vdisks. I can specify the disk details (size, type, etc.) in the create VM call, but don't seem to be able to specify the storage container to use. Is this correct?  The only work around that I've found is to use the v1 API to create the vdisk, grab its UUID, and use that in the v3 call to create the VM. I can't see a call to create a vdisk in either v2 or v3. Darren.

First of all, let’s take a look at what all-flash and hybrid nodes mean. All-flash:- Nodes containing only SSD drives Hybrid nodes:- Nodes containing both HDD and SSD drives.   Is it possible to have both kinds of nodes within the same cluster? – Provided that the two conditions below are met, it is: The AOS version must be 5.1 or later. The minimum number of each node type (all-flash/hybrid) must be equal to the cluster redundancy factor. For example, clusters with a redundancy factor of 2 must have a minimum of 2 hybrid and 2 all-flash nodes.   To check for any issues with mixing these nodes, we have the NCC check, “all_flash_nodes_intermixed_check”.   This checks if there are any all-flash (only SSD drives) nodes in the same cluster that have hybrid (HDD and SSD drives) nodes. This check is scheduled to run every day, by default and will generate an alert after 1 failure.   To know more about the check and its behavior, take a look at https://portal.nutanix.com/#/page/kbs/detai

The Unified Extensible Firmware Interface (UEFI) is a specification that defines a software interface between an operating system and platform firmware. UEFI replaces the legacy Basic Input/Output System (BIOS) firmware interface originally present in all IBM PC-compatible personal computers,with most UEFI firmware implementations providing support for legacy BIOS services. UEFI can support remote diagnostics and repair of computers, even with no operating system installed.Advantages :The interface defined by the EFI specification includes data tables that contain platform information, and boot and runtime services that are available to the OS loader and OS. UEFI firmware provides several technical advantages over a traditional BIOS system: Ability to use large disks partitions (over 2 TB) with a GUID Partition Table (GPT) CPU-independent architecture CPU-independent drivers Flexible pre-OS environment, including network capability Modular design Backward and forward compatib