Installation & Configuration

Is it possible to create DMZ network VM with single physical UpLink?

purchased 7/15/2016 setup/install 10/24/2016 (by Nutanix tech) office move 4/1/2017 (late april, power outage in San Francisco financial district, was on bus on way to work when power went out, never got to shutdown Nutanix cluster properly, next morning powered up cluster and ran fine. Awesome! no issues since then) hardware: 2 NX-8235-G5 1 NX-8135-G5 NOS: 4.7.2 NCC: 2.3.0 BIOS: 20160516 BMC: 03.28 hypervisor: VMware vCenter Server 5.5 Update 2e (vSphere on Windows Server 2008 R2) I need to upgrade vSphere from 5.5 U2e to whatever latest version of 6.5 and also Nutanix NOS 4.7.2 to 5.5.8 Do I: 1 - upgrade VMware to 6.5 then upgrade Nutanix to 5.5.8 or 2 - upgrade Nutanix to 5.5.8 then upgrade VMware to 6.5 or 3 - upgrade VMware to compatible intermediate version and then upgrade Nutanix to compatible intermediate version. upgrade VMware to 6.5 and then upgrade Nutanix to 5.5.8 or 4 - upgrade Nutanix to compatible intermediate version and then upgrade VMwar

Hello, Where from i can download prism central ova (for vmware)? I used several links, but always i am redirected to support portal. But i have community account only... Regards Mindaugas

While we the topic of VirtIO drivers has already been touched in Sarab’s post on Installing Windows VM and VirtIO drivers, we would like to bring two more KBs to your attention.One is on AHV | How to install VirtIO drivers for Microsoft Windows Server 2008 (KB-5666) and the other one is AHV | Nutanix VirtIO drivers for Windows Server 2019 (KB-6495).N.B! Nutanix does not release or maintain VirtIO drivers for Microsoft Windows Server 2008. However, you can still use stable VirtIO drivers available from Fedora project website.Nutanix recommends to use the Stable VirtIO-Win drivers.

For a nutanix cluster to be able to install a newly released hypervisor, the information about it must be already in iso_whitelist file.  This file can be downloaded from Nutanix portal (search for ESXi 6.7 U3) and is required when installing/upgrading hyperviosr using prism one-click.ESXi 6.7 U3 (built number 14320388),  has been out as of Aug, 20, 2019. It is Nutanix policy to support newly release hypervisors within 90 days after they are release by the hyperviosr vendors.As of this writing (Nov 18, 2019), nutanix has released the iso file for this release and is supporting installation of this built on Nutanix clusters 5.10..6 and above.Below is a public KB regarding the support for this release:https://portal.nutanix.com/#/page/kbs/details?targetId=kA00e000000CsgLCAS 

Security is the backbone of any infrastructure, so it is always recommended to set a strong industry-standard password for different components in your environment.Let’s say you want to implement a strong security password policy and have a need to modify the CVM and IPMI password in your environment but confused from where to start.Let us break the components for you: Modifying the CVM PasswordLogin in to the CVM.Change the admin password using the commandadmin@cvm$ passwd After you have successfully changed the password, the new password is synchronized across all Controller VMs in the cluster so you only need to follow the steps on just one CVM. Want to know more about the Nutanix password policy guidelines and steps for the above procedure Modify the CVM password. Modifying the IPMI passwordLogin to the IPMI Web Interface Click Configuration -> Users -> Administrative UserClick Modify and modify the password by entering the new password. What if you don’t have access to IPMI

At the end of guest OS installation the VM is rebooted but it doesn't automatically boot to the vHDD. How can I set it to boot automatically from the disk with installed guest OS? By default, AHV uses CD-ROM as the first boot device for VMs, followed by hard disk, then NIC. Please follow steps described below to override this behavior and choose a specific boot device. Things to consider:CD-ROM or hard disk can be selected as boot device in Prism UI. Network adapter can only be configured as boot device via acli. Selecting NIC as boot device may be required to boot VM from PXE server. Power cycle is required to apply boot device change. Resetting or rebooting VM is not enough. If boot device not explicitly selected, then all VMs will try to boot from all CD-ROM devices. If all CD-ROMs are empty or do not contain bootable image, then VM will only try to boot from hard disk with lowest index. If VM is configured to boot from network and there is no PXE server available, VM will not try t

I am having an issue adding a share to a new AFS instance where it reports “iSCSI discovery of targets failed to iSCSI portal xxx.xxx.10.5. Ensure that the stargate external data services IP and the CVM IPs are reachable from FSVM.” I have confirmed the CVM IP’s and FSVM IP’s are all bound to the eth0 interface of there respective devices and are all in the same xxx.xxx.10.xxx network segment.  All devices can ping all IP’s in the range so at least basic comms are working. I am sure I am missing something obvious but not sure where to go from here.  Suggestions please!

I just deployed a Witness VM (ESXi) for our first 2 node cluster and after setting the IP and reboot it gets the host name NTNX-<IP NUMBER>-A-CVM.Since it seems the witness VM is a kind of CVM I assume it wants to use the NTNX-<NAME>-CVM naming convention or it is OK to set the host name to whatever?Worked fine using  “sudo /usr/local/nutanix/cluster/bin/change_cvm_hostname <hostname>” to set the host name. 

For Files Analytics, are the ports required TCP or UDP?  I know that the ports to open are 7, 3000, 29092 but just wanted to be clear on tcp or udp. Thanks

Good Morning:We are in the process of deploying new NX-8235-G7 nodes that are connected to a pair of Cisco Nexus switch. Everything seems to be working well, with the exception of the switch occasionally receiving RX Pause frames from the servers. While this may not necessarily be a problem, I am doing my due dilligence.The switch ports the nodes are connected to are configured as follows:Connected as active/standby NICs Connected via 1 meter 10GE DAC cables 802.1Q trunk Speed/duplex auto-negotiation Flow control auto-negotiationThe nodes themselves are configured with the default network configuration that comes from the factory with the exception of anything that is necessary to support the use of ESXi and our network environment.Any suggestions or validations of how the switch ports should be configured? Thanks!

A piece of good news to begin with: it is possible to perform a non-disruptive memory upgrade on one node at a time.Start with a little bit of prep work. Check cluster status. Download and install the latest version of NCC (Nutanix Cluster Checker) and execute all health checks. Resolve any issue found. Identify the node you are performing the hardware maintenance on by turning on the chassis identifier lights on the front and back of the node that you will remove using one of the following options. The lights turn on for four minutes unless you change the value. Now you can migrate VMs of the node. Shut down CVM and the host. Replace or add DIMMs.For detailed outline of the process please refer to KB-1623 HW: Upgrading Physical Memory

Hi All I updated ahv for the prism central and now it does not show the cluster licenses - how do I correct this? ThanksEric

hello guys, I am new in Nutanix I want to learn Nutanix , take exam and I need virtual environment for testing is there anyone can help me.

Hello,My client has this alert "Active Directory Domain Contoller(s) or DNS servers configured on the UVMs in the cluster" due the fact that he moved his domain controller on the nutanix cluster. His environment is 100% Hyper-V, and he is totally aware that SMB3 share of the nutanix cluster, requires authentication from the domain. In order to avoid that my client created ISCSI volumes and presented them to his Hyper-V environment, on which he moved his domain controller, trying to avoid that type of failure if everything goes down after a power failure and when everything comes up, the domain controller to be able to boot prior of the authentication.Please let us know what's the best approach for this matter and what's your recommendation for this kind of setup, especially when all the domain controllers are virtualized.Regards,Adrian

Every production infrastructure knows the importance of load balancing the network traffic to increase efficiency.Let’s say you have multiple links in your environment and want to use the potential of all the links or want to have a backup configuration in case a link fails, load balancing will come to your rescue.Today we will talk about two load-balancing modesActive-Backup  Balance-slbTo know more about the load balancing configuration and AHV networking in detail, give the following document a read AHV Networking Best Practices Guide So how to make a decision regarding active-backup and balance slb?This comparison might help youAdvantages of Bond Mode for the active-backupDefault bond mode is active-backup. One interface in the bond carries traffic and all the other interfaces in the bond are used only when the active link fails.  Active-backup is the simplest bond mode that easily allows connections to multiple upstream switches without any additional switch configuration. Disadva

Suppose, it is discovered that a Nutanix cluster is configured with an incorrect time zone. While like all good things in life this requires a little planning, fear not – this can be helped!First things first, what to expect:Timestamps of Nutanix logs events will remain in the incorrect time zone until cluster services are restarted or the CMVs are rebooted. Cluster services restart on a cluster with active workload may impact availability of the workload. Changing the timezone for PE and PC is the same procedure, is not disruptive, but it requires a reboot of CVMs. Reboot can be performed on one CVM at a time. For a seamless experience it is recommended to evacuate VMs from the node prior to CVM reboot. Verify cluster Data Resiliency health prior to restart of cluster services or CVMs. Ensure Data Resiliency comes back healthy prior to proceeding with another CVM reboot. It is necessary to remove DR schedules prior to the change. Schedules can be re-created post change. Command for ch

AOS is in 5.10.8, We need to install NGT on Windows Server 2016 with only VSS feature enabled and not SSR. However, after installation, even though the SSR feature is not enabled, there is the SSR icon on the desktop. It can be opened and bring us to “http://localhost:5000”. I can understand that the feature is not active but I would like to avoid having it displayed on the desktop. How to avoid to have this on the desktop ? (I’m looking for another way than deleting the icon manually after NGT installation). What about this local web server ? Could it be stopped ?

When it comes to migrating your environment into AHV the recommended way would be to use Nutanix Move. Much being said and written and more is coming. Nutanix understand however that using Move may not be an option for whatever reason. Freedom of choice is important after all, right?  In case you are looking for an alternative way to migrate your VMs’ disks into AHV then keep reading.The article referred to in this post covers three scenarios:Source virtual disk files can be accessed directly by the Acropolis cluster over NFS (or HTTP). This scenario is generally possible when: The source environment is a Nutanix ESXi cluster. The source environment is a Nutanix Hyper-V cluster. The virtual disk files are hosted on an NFS server and the Acropolis cluster can be provided access to the NFS server export. (Common in non-Nutanix NFS based ESXi environments.)  Previously exported virtual disk files are hosted by any NFS or HTTP server and the Acropolis cluster has access to them. Source vi

In our previous post “Time Synchronisation on Nutanix Cluster”, we highlighted time sync importance and some commands to check status of time-sync on a Nutanix Cluster.In this post, we will briefly go through some important recommendations in selecting a time-source for your Nutanix Cluster.Nutanix recommends using at least 5 stable time sources that have a high degree of accuracy and that can be reached over a reliable network connection. Generally, the lower the stratum of an NTP source, the higher its accuracy. If lower stratum time sources (e.g. stratum 0, stratum 1) are difficult to gain access to, then higher stratum time sources (e.g. stratum 2, stratum 3) may be used.For more details, see Nutanix Recommendation for Time Synchronization. For a list of Stratum One Servers: http://support.ntp.org/bin/view/Servers/StratumOneTimeServersIf you have to select a Off-Site time-source, following is a good selection of points to consider:http://support.ntp.org/bin/view/Support/SelectingOf

AHV VM High Availability (HA) is a feature built to ensure VM availability in the event of a host or block outage. In the event of a host failure the VMs previously running on that host will be restarted on other healthy nodes throughout the cluster. The Acropolis Master is responsible for restarting the VM(s) on the healthy host(s). But we already know that, right? First, let us be reminded that there are three types of AHV High Availability configuration within AHV Cluster: Best effort Reserved Segments Reserved Host (only available via acli and not recommended in AOS 5.0 and newer) To read about each type as well as to find configuration steps, logs location and common issues with their explanation please read KB-4636 AHV | VM High Availability (HA).   For a refresh on AHV VM HA: Acropolis Virtual Machine High Availability Resources Nutanix University: Tech TopX: VM High Availability in AHV Prism Web Console Guide - Virtual Machine Management - VM High Availability in Acropolis Tech

Hi everyone, I have an issue with a newly purchased NX-1175S-G6 that need to deploy at the EU environment.The system doesn’t allow to raise a case to the support portal.The installation just can’t seems to pass through the foundation stage.The latest place it stuck is at the screenshot. That is still just a small part. Before this when I try to put in VLAN to setup, it just can’t get through it. Anyone can guide me to a correct direction? Thanks 

While at the time of posting this article neither the process referred to nor Windows 2003 OS itself are supported within AHV environment, Nutanix understands that there are situations where customers might find themselves in a position of not being able to move away from certain OS version.To help customers with the process of migration of Windows 2003 servers from ESXi to AHV we share this post by Artur Krzywdzinski where he explains the process in details. We would like to thank Artur for sharing the solution.Share your own ideas and processes that worked (and did not) with community - help someone, encourage cooperation!Please note that Nutanix Xtract referred to in the post is currently known as Nutanix Move.vmwaremine.com: Migrate Windows 2003 to Nutanix AHV by Artur Krzywdzinski

Hi, I'm trying to install a 3-node Lenovo HX3321 but I got this issue: Every node gets the following log: It keeps waiting for md arrays to resync but it no longer continues the process and fails. I'm trying to install AOS 5.10.6 and foundation 4.4.1 Do you have any idea how I could fix this issue? Regards,

Regenerating security certificates is always a good security policy and should be strictly implemented in every mission-critical production infrastructure.In the case of Nutanix guest tools, the certificates are scheduled to expire every 3 years.After the certificates are expired, you will notice the NGT link to be false and an alert to be generated saying Guest Service is not reachable.So how do we regenerate the certificates in NGT?First, we get the VM id of the affected NGT VM using the command                  ncli ngt list We delete the VM entity from the ngt cli and recreate using VM id  Go to VM and restart the Guest Agent ServiceGo through the following KB to get the detailed information regarding the procedure and the commands involved.KB-8120