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3009 Topics
N
Nutanix Employee
NutonianNutanix Employee
posted in How It works
LCM | What is this Sorcery?

Can you imagine performing firmware upgrades manually?Checking compatibility matrix for each component, procuring ISOs and staging them, take days to perform firmware upgrade and one can only hope that the host/cluster is still functioning after everything is said and done.LCM simplifies Nutanix IT infrastructure life cycle operations by consolidating software and firmware component upgrades into a unified control plane. LCM does all the hard work of managing all the upgrade dependencies for the software and firmware components. You don't have to worry about a thing. LCM normalizes firmware upgrades across hardware platforms and provides a single unified process regardless of vendor. Based on the bundle of components -- software and firmware-- that are selected for upgrade, LCM creates a plan that ensures the updates are deployed with the minimal number of service or host restarts.Get Started: Use Prism Central or Prism Element to open LCM Perform the LCM inventory (default is set to

6780
N
Nutanix Employee
4 years ago
G
Nutanix Employee
GaretNutanix Employee
posted in How It works
Taking Control of Prism Alerting

Did you know that many of the health checks and alerts within Prism can be configured according to alert policies?Though it is usually a good idea to leave alert configurations at their default values, some alerts (or checks) can be adjusted to accommodate particular needs through an associated alert policy. For example, if there is a known condition within an environment in which an associated alert goes purposefully and perpetually ignored or overlooked, the associated health check can simply be turned off.Alerts can also be enabled/disabled based upon a particular severity level (i.e. Info, Warning or Critical). Also, even better than outright disabling an alert or check, some alert policies can be configured for auto-resolution if the condition has not recurred within the proceeding 48 hours of its initial exhibition.More information regarding the configuration of checks and alerts can be found within the Configuring Health Checks section of the Prism Web Console Guide.

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G
Nutanix Employee
4 years ago
C
CarloNXTrailblazer
asked in Installation & Configuration
Disable SSL Certificate

Hello NX, I have a question, is it okay if i will disable the SSL port of my Nutanix CVM's and management port? Because if shows vulnaribility into the scan. What would be the effect if i will disable those ports.. Thank you. 

8226
C
4 years ago
R
Nutanix Employee
rahul.khandalkarNutanix Employee
posted in Installation & Configuration
Broken SSH connection for Esxi 6.7

While upgrading the ESXi host. Users can come to the issue of "Installing the bundle on the hypervisor" when the CVM (Controller VM) is trying to SSH into the host; or The SSH connection between the CVM and the host may break after a successful upgrade.The problem when checked from genesis.out log on Controller CVM shows unable to SSH2018-06-18 15:22:25 INFO node_manager.py:4930 Setting up key based SSH access to host hypervisor for the first time...2018-06-18 15:22:25 INFO hypervisor_ssh.py:32 Trying to access hypervisor with provided key...2018-06-18 15:22:25 INFO hypervisor_ssh.py:40 Failed.2018-06-18 15:22:25 INFO hypervisor_ssh.py:44 Trying to access hypervisor with provided password...2018-06-18 15:22:25 INFO hypervisor_ssh.py:52 Failed2018-06-18 15:22:25 ERROR node_manager.py:4935 Failed to set up key based SSH access to hypervisor, most likely because we do not have the correct password cached. Please run fix_host_ssh command manually to fix this problem.User would want to chec

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R
Nutanix Employee
4 years ago
C
Chandan KumarAdventurer
asked in Installation & Configuration
Mount External SAN Storage with Nutanix AHV

Dear Team,My cluster is out of storage now,I have one Lenevo SAN Storage(V3700).can you please suggest how to utilize this storage with Nutanix AHV cluster. 

28211
Sergei Ivanov
Nutanix Employee
4 years ago
S
shshVoyager
asked in How It works
Windows sysprep static ip address

Hello everyone. I want to allocate IP to the cloned VM using sysprep through the blog address below.https://www.nutanix.dev/2020/02/06/customizing-ahv-vms/ However, the IP is not changed through the script in the blog.In addition, it was confirmed that the host name and password were changed. The versions I am testing are windows 10, windows server 2016. Please, let me know. Thanks,Regards

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S
4 years ago
J
jfmeyer00Adventurer
asked in Installation & Configuration
Rebuild Cluster - Hyper-V to AHV

This is the scenario I have:We have a four node cluster running Hyper-V. We want to migrate/reload/replace with AHV. There is nothing on this cluster that needs to be preserved.I tried the Foundation Portable application, but it does not seem to discover the nodes. I suspect that is because they are neither bare-metal nor factory imaged at this point. (based on this article - https://portal.nutanix.com/page/documents/details?targetId=Field-Installation-Guide-v4_5:Field-Installation-Guide-v4_5)This is a “retail” cluster, so I do have support. I just don’t know if it’s appropriate to tie up a support engineer for the time it would take to reload a cluster. So I was hoping to at least get started on my own. I did some googling and searching here and the KB. But I suspect my search terms are either too broad or maybe even far too specific. All I get back is how to setup a brand new cluster. 

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Sergei Ivanov
Nutanix Employee
4 years ago
ashwin.ramaswamy
Nutanix Employee
ashwin.ramaswamyNutanix Employee
posted in How It works
Expand volume group disk size on Windows OS

In AOS 5.0, you can expand the disk online. In versions older than AOS 5.0, you needed to go offline to expand the disk and then online again. But before expanding the disk you will need to increase the size of the volume group. The size the disk in a volume group can be increased using the Prism GUI or the aCLI or nCLI. This article describes the increasing the size of the volume group disk using nCLI and aCLI and also shows how to expand the disk online in Windows guest OS. Expand disk size of Volume Group through aCLI and nCLIFrom aCLI:Starting from AOS 5.x, the disk can be expanded without taking it offline.Increase the size of the disk:nutanix@cvm$ acli vg.disk_update <Volume Group name> <disk index> new_size=<size of disk>Note:  when specifying the size, uppercase G is for gibibyte, lowercase g is for gigabyte.From within aCLI, execute "help <command>" to get more information about commands, including optional arguments. From nCLI:Increase the size of the

30460
ashwin.ramaswamy
Nutanix Employee
4 years ago
J
JlperezdlpAdventurer
asked in Installation & Configuration
Problems while upgrading with uplinks at 1 Gbps

Recently, we upgraded AOS and AHV in a 6-NX-1065-G5 nodes cluster. Those nodes have only 1 Gbps interfaces and the upgrade process got stuck many times while actively moving guest VMS to other nodes when setting each node to maintenance mode. Tech support told us this happened because new AOS and AHV versions were designed to work at 10 Gbps, which we know is a best practice, but a hardware upgrade would be needed in our scenario then.Question: I´m guessing configuring the four uplink interfaces as Balance-SLB bond may help, having a total bandwidth of 4 Gbps in optimal conditions, Has anybody gone through this problem and applied this cure? Was it useful or… Not enough? Thanks in advance

4823
J
4 years ago
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works
Top KB Articles for August 2020

Below are the top knowledge base articles for the month of August 2020.KB 4116 - NX Hardware [Memory] – Alert - A1187, A1188 - ECCErrorsLast1Day, ECCErrorsLast10Days KB 7503 - NX Hardware [Memory] – G6, G7 platforms - DIMM Error handling and replacement policy KB 1540 - What to do when /home partition or /home/nutanix directory is full KB 4141 - Alert - A1046 - PowerSupplyDown KB 4158 - Alert - A1104 - PhysicalDiskBad KB 6970 - PE-PC Connection Failure alerts KB 4409 - LCM: (LifeCycle Manager) Troubleshooting Guide KB 4519 - NCC Health Check: check_ntp KB 2090 - AHV | Host Networking KB 1113 - HDD/SSD Troubleshooting KB 3787 - Alert - DiskSpaceUsageHigh KB 2473 - NCC Health Check: cvm_memory_usage_check KB 8524 - Alert - A700101 - Tomcat is restarting frequently KB 7386 - NCC Health Check: power_supply_check KB 3357 - NCC Health Check: ipmi_sel_cecc_check KB 4520 - Host stuck in Phoenix after LCM firmware upgrade failure KB 4639 - How to place CVM and host in maintenance mode KB 6945 -

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Albert Mendoza
Nutanix Employee
4 years ago
V
VictorKiwiTrailblazer
asked in Installation & Configuration
vStore cross-mapping for Data Protection

Hello,May I please ask for some help with understanding vStore mapping in Data Protection?Setup: two identical HCI clusters, both run production workloads. A Protection Domain with Async DR is being configured to replicate a subset of VMs from one cluster to another for DR purposes, as well as for migration scenarios. Hypervisor: ESXi.Question: Can vStore mapping be done to a container with live running VMs?In more general view, I consider a scenario where each of the two clusters not only runs its portion of production workloads, but also is the replication target for the other cluster. Should the replication be mandatorily mapped to a separate/dedicated container, or can it go to the same container as the local VMs run from? I.e. how about having a single container for all UVM-s in each cluster, and vStore mapping in each cluster for these two containers?Thank you.

6531
R
Nutanix Employee
4 years ago
K
Kumar MaharjanExplorer
asked in How It works
How to Export Snapshot to remote server

how can we export nutanix snapshot to server that are not in the Nutanix?

8531
R
Nutanix Employee
4 years ago
T
tburris48Trailblazer
posted in How It works
V3 API: List All VMs

I was writing a quick PowerShell script this morning and I wanted to get all of the VMs in Prism Central via the v3 API calls. I was struggling with the syntax until I found this post:v3 - vms/list - Host to get full list of VMs? The post lead me to this article:The Five Hundred (500+ VMs via v3 API) The article lead me to this code sample:list_vm_v3_large.py After reading those articles a few times I still didn’t understand what I needed to do...I finally figured it out. I could piece together the v3 API call, but I couldn’t get the correct number of VMs to return. After hitting the wall a few times I figured out the part I didn’t understand: the relationship between length and offset.Here is what you need to understand:The “api/nutanix/v3/vms/list” v3 API command method is POST. That means you must include “body” in your API call To get the total number of VMs you can use this JSON: {"kind":"vm"} Note: This will give you the total number of VMs in the cluster/PC. The results will loo

57910
T
4 years ago
A
AngeTrailblazer
asked in Installation & Configuration
SMTP Server Settings for Office365

Hello All, How should I provide SMTP Server settings when the mail server is in the cloud (Office365) ?As shown below, I tried with this mail server smtp.office365.com but the “email test” failed : Thanks in advance.

21462
A
4 years ago
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works
New KB Articles Published on Week Ending August 29, 2020

Below are new knowledge base articles published on the week of August 23-29, 2020.KB 9683 - Move: User privileges required for migrating Resource Pool based VMs KB 9760 - When creating/updating a Recovery plan on Network settings' page, Production and Test failover subnets are not shown correctly and a message 'No options available' is displayed in the UI KB 9819 - VM power on failure on AWS. Error: Failed to PlugNic KB 9848 - SSP - Project creation failed error "user_capability mandatory field: username is missing" KB 9898 - LCM 2.3.3 - How to update lcm_family attribute for Intel DCB nodes? KB 9905 - AHV upgrade becomes stuck because host is in the process of an HA failover and could not be placed into Maintenance Mode KB 9916 - LCM: Inventory failed for release.smc.sata_update.update due to failed drive on node KB 9918 - Enabling HA on vSphere 7.0 cluster fails to enable VMCP because of ESXi host(s) with APD Timeout disabled. KB 9925 - How to delete all data sent to Nutanix by Pulse

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Albert Mendoza
Nutanix Employee
4 years ago
rohan.saksena-55595
Nutanix Employee
rohan.saksena-55595Nutanix Employee
posted in Move Application Migration
Nutanix Move – FAQs (Frequently Asked Questions)

Nutanix Move (a.k.a Move) is a cross-hypervisor mobility solution to move VMs with minimal downtime. Move supports migration from the following sources to targets, with first platform being the source and second platform being the target.VMware ESXi to Nutanix AHV VMware ESXi on legacy infrastructure to VMware ESXi on Nutanix Microsoft Hyper-V to Nutanix AHV AWS EC2 to Nutanix AHV AWS EC2 to VMware ESXi on Nutanix Nutanix AHV to AWS EC2Since infrastructure underneath platform is different, a small downtime is incurred during cutover from any of the preceding sources to targets.If this sounds Interesting, but you have a lot queries about this Amazing Solution i.e. NUTANIX MOVE.Relax…!!Here is link to answer most of your queries – Move FAQsFor more details refer to Move User Guide

31560
rohan.saksena-55595
Nutanix Employee
4 years ago
Riddhima.singh
Nutanix Employee
Riddhima.singhNutanix Employee
posted in How It works
LCM Log Collection Utility

Do you know you can run a individual log collector just for LCM logs if you are having any troubles running updates from LCM?LCM (Life Cycle Manager) Log Collection Utility provides an independent script designed to collect all the important log files necessary to debug any LCM issue.The utility is available in LCM version 2.2 or later by default. It could also be used on earlier versions of LCM.Functionality:Collects LCM log files. Detects if the node is stuck in Phoenix and collects kernel logs. Collects logs for the services with which LCM interacts (Example: Foundation, Prism, etc.). The utility state is independent of such of the LCM hence it is capable of collecting logs even if the framework is down. Parses LCM configurations from Zookeeper nodes.Files/Info being collected:Node Level Information LCM leader Foundation version LCM version Hypervisor type/version LCM configuration /etc/nutanix/hardware_config.jsonFor LCM 2.3.1 and later (Automatic log collection)LCM 2.3.1 automatic

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Riddhima.singh
Nutanix Employee
4 years ago
G
Nutanix Employee
GaretNutanix Employee
posted in Installation & Configuration
Changing Cluster IP Addresses

Are you someone with the following condition? Your Nutanix Cluster has grown so much that it needs to be moved to a different (bigger) network segment (VLAN).  You are daunted by the amount of changes that moving a cluster to a different network space could result in. Have no fear!The procedures are documented as per the CLUSTER IP ADDRESS CONFIGURATION section of the ACROPOLIS ADVANCED ADMINISTRATION GUIDE. From a high level, the procedures involve some preliminary verifications along with securing some downtime for the cluster (as the changes need to be made while the cluster is in a “stopped” state). From there, it is simply a matter of changing the IPMI and hypervisor IP addresses followed by the execution of a script called “external_ip_reconfig” which handles the procedures for changing the IP addresses of the CVMs. Follow that up with some post verifications and your existing cluster should be successfully running on a new network segment!

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G
Nutanix Employee
4 years ago
Kiran Surya
Nutanix Employee
Kiran SuryaNutanix Employee
posted in How It works
Print the size of a VM in Bytes, KiloBytes, MegaBytes and GigaBytes

Nutanix customers using AHV as their Hypervisor often need to evaluate resources being used/consumed on their infrastructure.  One of those factors involved is in calculating how much space has been consumed by one or more Virtual Machines.  It is possible to get granular in this scenario and be able to calculate the amount of space taken up by a VM.  Depending on their environment, it should be possible or feasible for one to print out the space usage in terms of Bytes, KiloBytes, MegaBytes or GigaBytes.I have developed the following string manipulation to be able to get those numbers.  Here is a sample from one of the checks I performed:nutanix@NTNX-20FM6L56789-A-CVM:172.31.1.11:~$nutanix@NTNX-20FM6L56789-A-CVM:172.31.1.11:~$ acli vm.list | grep 120-Windows-Invent120-Windows-Invent 99021293-4ea5-440a-a894-846ed07de132nutanix@NTNX-20FM6L56789-A-CVM:172.31.1.11:~$nutanix@NTNX-20FM6L56789-A-CVM:172.31.1.11:~$ acli vm.get 120-Windows-Invent | grep vmdisk_size | awk '

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Kiran Surya
Nutanix Employee
4 years ago
A
Anwar101Adventurer
posted in How It works
ABS to External Hyper-V hosted on UCS via storage Only AHV possible ?

Hi ,We have Hyper-V running on UCS, Need to expand Storage piece of it , so Can I build Storage Only AHV cluster with 3 nodes and provide ABS volume as datastore ?Please guide other options.

5806
Alejandro Suarez
Nutanix Employee
4 years ago
Riddhima.singh
Nutanix Employee
Riddhima.singhNutanix Employee
posted in How It works
Expanding (Scale Out) Prism Central

Do you know you can expand Prism central VM from one to three instances to support moreworkloads?If Prism Central is running on a single VM currently, you can expand it to three VMs. This increases both capacity and resiliency of Prism Central (at the cost of maintaining two additional VMs).  To scale-out Prism Central instance across multiple VMs, we can follow steps below: Click Gear icon and then select Prism Central Management from Settings menu Manage Prism Central page appears which provides information about Prism Central Instance.  To expand Prism Central instance from one to three VMs, click the Scale Out PC button to display the Scale Out PC page and do the following: Here are requirementswhich must be met before you can expand Prism Central or add a Prism Central VM.

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Riddhima.singh
Nutanix Employee
4 years ago
B
bereket.sAdventurer
asked in Installation & Configuration
storage container not available

Hello,i have three nodes configured with nutanix AHV and in the storage container i am seeing 3 containers but one of the containers is not working i can’t even update the setting for it please it has over 21 tb space and i couldn’t use it so what do i have to do to make it available. 

7983
Sergei Ivanov
Nutanix Employee
4 years ago
P
PeWuAdventurer
asked in How It works
Nutanix with ESXi API output

Hi everyone, I need some help.I'd like to see the output of several Prism Element API calls in the Nutanix/ESXi hypervizor environment.curl -ks -u 'user:pass' -X GET 'https://<prism_element_ip>:9440/PrismGateway/services/rest/v2.0/cluster'curl -ks -u 'user:pass' -X GET 'https://<prism_element_ip>:9440/PrismGateway/services/rest/v2.0/hosts'curl -ks -u 'user:pass' -X GET 'https://<prism_element_ip>:9440/PrismGateway/services/rest/v2.0/vms?include_vm_disk_config=true&include_vm_nic_config=true'We are developing a monitoring/reporting tool for multiple platforms. We have recently added support for Nutanix as well. It works fine with AHV but we don't have access to a Nutanix/ESXi config.Thanks and regards,P.

13176
AnishWalia20
Nutanix Employee
4 years ago
I
il_gianK'Voyager
asked in Installation & Configuration
Customized Prism Central name on browser tab

Hi guys, a non technical question about a customization option that I can’t find anywhere. I have two Prism Central used for Synchronous replication. To Identify them at first sight I have customized title and colors of the login page. It was a bit disappointing to not find the customized name on the browser tab or at least on the menu bar title. Even after editing the cluster params to give a name to the PC cluster (only one VM as for now) the name stick on “Prism Central” on the tab and “Prism” on the menu bar.Considering I’m working on a Synchronous replication and that all the objects involved have the same name (Protection Policies, Recovery plans, categories), sometimes i found myself working on the wrong Prism Central. It would be easier to have the PC name always visibile. Any idea? Thanks in advanceil_gianK’ Tab and menu bar title 

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Sergei Ivanov
Nutanix Employee
4 years ago
B
bbeavisAdventurer
asked in Installation & Configuration
Prism Central, ncc check says needs more resources. 200 VMs but PC thinks it is Large?

Upgraded PC to 2020.7 and ncc to 3.10.1.  Now getting the warning:Possible CauseThe current feature capabilities of Prism Central require resource on the Prism Central VM to be increased for optimum performance. RecommendationIncrease the resource of the Prism Central VM. Please refer KB-8932 for guidance. I am at 6 vCPU and 32 GB RAM for PC VM.  Not getting too far with support.  I was wondering if others have seen this issue.The KB article mentions “large” and “small”.  I don’t remember setting PC size.  How does it know if it is large or small?  Mine thinks it is large, but I only have around 200 VMs in 3 Clusters.  Only using a single PC, not scaled.

10243
Alona
Nutanix Employee
4 years ago

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