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Two node clusters

A traditional Nutanix cluster requires a minimum of three nodes, but Nutanix also offers the option of a two-node cluster for ROBO implementations and other situations that require a lower cost yet high resiliency option. Unlike a one-node cluster (see Single-Node Clusters), a two-node cluster can s...

Nutanix AHV Plug-In for Citrix Director

VDi (Virtual Desktop Infrastructure) is one of the earliest applications that was used in hyper-convergent systems. The closer the storage to the cpu and memory the better the performance. The plugin provides the means for getting more information on Citrix director from Citrix generated desktops r...

Adding a drive to the nutanix cluster storage pool

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 sit...

VM management in ESXi with prism

If your hypervisor is ESXi you know how vCenter manages all the Vms in the vmware data center. You can either use vCenter for Vm management or Prism to control to do most of the same. This stated long ago after AOS 5.0 was released. Most core VM management functions like creating, cloning, updating...

Citrix Director plugin unable to connect to Nutanix cluster

VDi (Virtual Desktop Infrastructure) is one of the earliest applications that was used in hyper-convergent systems. The closer the storage to the cpu and memory the better the performance. Citrix director plugin, need to be connected to the nutanix cluster. if the connection fails with a message "U...

change the default docker bridge (Docker0) IP in Nutanix Move

The Move 3.0 services are now Dockerised and all Move and Move Agent Services now run as Docker Containers. You maybe running Nutanix Move version 3 and are unable to connect it to hosts that reside on certain internal subnet you have. it may be that local docker container (Docker0) has also assi...

IPMI and Server Health

If you are running Nutanix hardware, you may be familiar with accessing the IPMI page to load ISO files and looking into hyperviosr remote console among many other functions. You can reach this page from Hardware link in Prism (click on table tab and select the hyperviosr you are concerned about, th...

Cluster IP address change

Every once in a while due to network infra structure changes or because you have to physical move the cluster to another location, you may have to modify the Cluster IP. This includes CVM, Hypervisor and IPMI ip addresses, netmask and default gateways Unfortunately this operation requires taking...

Foundation and LACP support

Foundation is how we build and configure Nutanix clusters and many customers would prefer to make use of more advanced network technologies like LACP to improve the cluster performance and provide redundancy. LACP increases bandwidth, provides graceful degradation as failure occurs, and increases a...

Data Replication page in prism shows "processing" for some or all snapshots even after they are completed

If you are replicating data through DR (Data Replication page in Prism), then you have setup schedules for snapshots so they can be copied to the remote site on scheduled time. When you select a “snapshot” filed in one of the protection domains you created in the Prism UI, one of the fields is “Re...

Windows BSOD after migration to AHV from different platforms or after P2V conversion

This happens because the Windows Operating System does not have the appropriate drivers (VirtIO driver) to read the disk that has the operating system installed on it. In a nutshell: 1- Download both VIrtIO and Windows ISO to the image store in the cluster (you can use prism “image configuration...

Nutanix and Security

Nowadays everyone is concerned about the security of their infrastructure as they should be. The Nutanix document referenced below contains an overview of the security development life cycle (SecDL) and host of security features supported by Nutanix. It also demonstrates how Nutanix complies with s...

Cluster upgrades when with metro availability is enabled

All clusters will need to be upgraded at a point. If you have metro availability enabled in your environment, you will need to follow the best practices guide lines for it: https://portal.nutanix.com/#/page/docs/details?targetId=Web-Console-Guide-Prism-v510:wc-metro-availability-upgrade-considera...

Is ESXi 6.7 U3 supported on Nutanix cluster 5.10.X and later?

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 (b...

Using Compression and Deduplication to add to storage usage capacity

Cluster data usage grows and occasionally it grows more rapidly then planned and expected before a new node to be added to handle this growth. Nutanix offers data Compression and Deduplication to hold more data in the container, by reducing the stored size and avoiding duplicate data, respectively....

Opening "Remote Support" channel and troubleshooting for it

Occasionally you will need to deal with nutanix support who needs access to your cluster but not over a webex or zoom sessions. You can always setup a remote support channel so nutanix SREs can perform troubleshooting in the background, leaving you free to work on other more important issues in your...

Duplicate user VM ip addresses in Prism

If you are running AOS 5.10 or later, you may notice some user VM in Prism show two IP addresses. This could happen if the VM releases its older IP address and acquire a new one. You will see both old and new IP addresses in Prism for this VM, even if VM uses a temporary IP address like APIPA addres...

CVM memory usage alarm in vCenter

You might have noticed vCenter alarms regarding CVM memory usage being high, and when you look at Prism console for the CVM, you will see it reports 100% but no prism alert will has posed up.This is a known visual artifact with passthrough VMs that could be bypassed by creating a customize alarm i...

Remote syslog server and alerts

If you already have a functioning “Syslog Server” and you would like to forward cluster logs to it, you can follow instructions in:“https://portal.nutanix.com/#/page/docs/details?targetId=Advanced-Admin-AOS-v511:set-rsyslog-config-c.html”However, presently (as of fall of 2019) the activity entities...

Nested Virtualization

Running virtual machines inside another virtual machine (also known as Nested Virtualization) is not presently supported in Nutanix AHV. This is documented in the KB titled “Configuring VM to run nested hypervisor”

Using Nutanix "Compatibility Matrix" to match hardware and software releases

If you are deciding which hyperviosr or AOS release is supported for your present or future hardware platform, Nutanix compatibility matrix in your portal is the best place to start. If you are wondering which hyperviosr is supported with a given AOS release and vice verse, you can use computability...

Cluster Maintenance or Relocation

Occasionally you need to temporarily power off your cluster hardware for maintenance, relocation or any other necessary task. To do this you will need to stop your cluster and then start it back after the required task was done. But you will need to perform the following tasks before and after the...

Setting EVC on a vSphere cluster

if you are trying to set “Enhanced vMotion capabilities” (EVC) on a running cluster, you may see a pop up Error Window saying: “… Powered-on or suspended Virtual machines on the host may be using cpu feature hidden by that mode” You can create a new cluster in vSphere and set the EVC on it firs...

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