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3161 Topics
JeremyJ
Nutanix Employee
JeremyJNutanix Employee
posted in Move Application Migration
Want to export a VM from AHV? Here’s how.

You may be familiar with using Nutanix Move to migrate VMs into an AHV cluster, or you may have imported VMs to AHV manually following this method, but what if you want to take your VM out of your AHV cluster to use in a non-Nutanix ESXi cluster, or to deploy on Hyper-V or KVM? Note I said non-Nutanix ESXi cluster. If you have a Nutanix ESXi cluster and an AHV cluster it’s much easier to use Async DR migration since this kind of cross hypervisor DR migration is fully supported from Prism. If you need to export your VM from AHV to another hypervisor there is a documented procedure provided. Here we will be using the articles “AHV | How to access VM disk files on Nutanix container” and “AHV | How to migrate user VMs from AHV to Hyper-V/VMware ESXi/KVM”. The first article covers reviewing your VM configuration from ACLI to identify the VM disks which are named by their UUID, and then how to collect those files using the SFTP protocol on port 2222. The second article describes using th

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JeremyJ
Nutanix Employee
R
randyramandaniTrailblazer
asked in Installation & Configuration
capacity for RF2 and N+1

Hi team, i have questions about capacity calculator let say i have config for 3 node like the picture below,  so in prism will show me 17TB logical capacity correct?  and i have concern in extent store RF2 and N+1 (11TB) in sizer tool, what happen if i have data 15TB which is bigger than RF2 and N+1 size (11TB)?

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JeremyJ
Nutanix Employee
B
Bart-WesselsTrailblazer
asked in Installation & Configuration
hyper-v cluster conversion

We are running a nutanix cluster with Hyper-v. this was the worst thing we could do when we started with nutanix. We know that now. But my main question is, is there a way of getting this cluster converted to AHV?   It's a Dell XC cluster with 2 blocks and 5 nodes.   regards

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Alona
Nutanix Employee
J
JoeAndersonPathfinder
asked in Installation & Configuration
Installing additional instance of Central

New to Nutanix and have a question that may have already been answered, although I could not find it with a quick search.  We are needing to install an instance of Prism Central in our backup datacenter and need to know if there are any issues in running this application in multiple locations at the same time, or is there a specific installation method for HA?  If HA is not available are there any issues in actively using both instances via round robin DNS entries? Thanks in advance for your assistance. Joe

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Alona
Nutanix Employee
C
CarloNXTrailblazer
asked in How It works
NTP Time In AHV And CVM is not Synchronizing

I am having an External NTP server, Which is tagged to my CVM, unfortunately my AHV is not corresponding with mt NTP server even it is reachable from my hypervisor level. I have checked my Hypervisor thru ssh and run the command ‘date’ its gives me different time from my NTP server.

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JeremyJ
Nutanix Employee
C
ChaddAdventurer
asked in Installation & Configuration
Latest NGT version?

Hello, I'm not sure if this is the best place to ask this, but I'm not sure where else to ask. I keep getting a message that there's an NGT Update Available on just one of our servers running Ubuntu. I ran an update and it went from 1.1.2 to 1.5.2. After resolving/acknowledging the issue it reported the same message again the next day. Is 1.5.2 not the latest?

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JeremyJ
Nutanix Employee
Jubran
Nutanix Employee
JubranNutanix Employee
posted in Installation & Configuration
Change AHV Host MTU for Jumbo Frames

What is Jumbo frames?  In computer networking, jumbo frames are Ethernet frames with more than 1500 bytes of payload, the limit set by the IEEE 802.3 standard. Jumbo frames can carry up to 9000 bytes of payload.   When should jumbo frames be used?  Use jumbo frames only when you have a dedicated network or VLAN, and you can configure an MTU of 9000 on all equipment to increase performance. A good general example of this approach is a separate SAN or storage network.   How to check your current MTU status? Run this command on one of your CVMs “NCC Health Check: cvm_mtu_check”. The command checks: On Hyper-V, validates if the MTU size is properly defined for eth0 and eth1 on the Controller VM On AHV, ESXi and Hyper-V, ensures the CVMs can communicate via eth0 with their configured MTU without upstream network fragmentation. For more information about this check, take a look at this article. How to Change AHV Host MTU for Jumbo Frames?  Check out this KB that explains the preparation and

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Jubran
Nutanix Employee
J
JarkkoVoyager
asked in How It works
Is Windows Server Failover Cluster supported with shared vmdk with esx?

Is Windows Server Failover Cluster supported with shared vmdk with esx? Or only Nutanix Volumes with iscsi? Hypervisor is esx.

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HITESH0801
Nutanix Employee
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works
New KB Articles Published on Week Ending March 14, 2020

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.

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Albert Mendoza
Nutanix Employee
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works
New KB Articles Published on Week Ending March 7, 2020

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

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Albert Mendoza
Nutanix Employee
Jubran
Nutanix Employee
JubranNutanix Employee
posted in Installation & Configuration
Adding an additional storage drive

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

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Jubran
Nutanix Employee
S
SilkBCVoyager
asked in Installation & Configuration
NTP not correctly configured: Zeus issue?

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.

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AntonioG
Nutanix Employee
JeremyJ
Nutanix Employee
JeremyJNutanix Employee
posted in How It works
Disk size increased, but still reflects the same size within the VM.

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” 

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JeremyJ
Nutanix Employee
Shaurya
Nutanix Employee
ShauryaNutanix Employee
posted in How It works
NCC Series | same_timezone_check

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.

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Shaurya
Nutanix Employee
A
Amit_kumarAdventurer
asked in Installation & Configuration
Browse containers

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

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A
C
chenzh4Trailblazer
asked in Installation & Configuration
What is the meaning of "mode" in the output of mange_ovs show_interfaces

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?

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C
R
RuslanRShWayfarer
asked in How It works
NCC Health Check report on Email, double report

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

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AntonioG
Nutanix Employee
JeremyJ
Nutanix Employee
JeremyJNutanix Employee
posted in How It works
Setting or changing the IPMI IP address, what are the restrictions?

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

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JeremyJ
Nutanix Employee
S
Sammy777Adventurer
asked in How It works
How can I get proviosned vCPU and memory with API??

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

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S
W
WaHamidVoyager
asked in Installation & Configuration
Install VMware in Nutanix Nodes

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?

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JeremyJ
Nutanix Employee
B
BillalWayfarer
asked in Installation & Configuration
how to factory reset a nutanix node after fundation run

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

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JeremyJ
Nutanix Employee
R
randyramandaniTrailblazer
asked in Installation & Configuration
What happen when prism central down?

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?

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JeremyJ
Nutanix Employee
O
oscarascoliAdventurer
asked in Installation & Configuration
IPMI sensor mismatch / IPMI sensor data record unavailable on host

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?

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JeremyJ
Nutanix Employee
T
thiru_nutanixExplorer
asked in Installation & Configuration
error validating ipmi account with "x.x.x.x" IP. SCOM

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.

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JeremyJ
Nutanix Employee
srananavre
srananavreWayfarer
asked in How It works
Cannot create UUID from string. New-NTNXVirtualMachine

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

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JeremyJ
Nutanix Employee

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