How It works

Have questions about how the Nutanix Platform works? Looking to get started - start here!

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Albert Mendoza
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Albert Mendoza
started this topic

New KB Articles Published on Week Ending March 9, 2024

Below are new knowledge base articles published on the week of March 3-9, 2024.KB 16144 - Nutanix Files - "Server has no Shares" error in PC...
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Albert Mendoza
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Albert Mendoza
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Top KB Articles for February 2024

Below are the top knowledge base articles for the month of February 2024.KB 6082 - inode_usage_check fails due to large amount of email file...
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Alona
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Alona
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Help us help you! Assign Support Contact to your Nutanix assets.

We know you care about your infrastructure. Every time and auto support ticket is created for one of Nutanix clusters a Support Engineer con...
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1356 Topics

M
Manuel80Explorer
asked in How It works

Nutanix snapshot how he lives together with esxi ?

Hello, I need to understand how nutanix snapshot he lives together with vmware snapshot. It's possible to protect VM with Nutanix snapshot although maybe some users make snapshots from vmware side ? Do they work together ? are there any contraindications or special attentions ? Do they not interfere with each other? I think only be careful not to interfere any restore snapshot from nutanix side with any backup/snapshot made vmware side (aka veeam) ? Thanks Manuel

2
Punitsolanki
Nutanix Employee
4 years ago
L
lk541Voyager
asked in How It works

How to create a two-node cluster

According to the Prism Web console guide, there is no mention about how to create a two-node cluster. [url=https://portal.nutanix.com/#/page/docs/details?targetId=Web-Console-Guide-Prism-v510:wc-cluster-single-node-c.html#nconcept_fxk_fxl_pbb]https://portal.nutanix.com/#/page/docs/details?targetId=Web-Console-Guide-Prism-v510:wc-cluster-single-node-c.html#nconcept_fxk_fxl_pbb[/url] It might be this ? " cvm$ cluster create -s --redundancy_factor=2" Thanks, Kazu

3
Punitsolanki
Nutanix Employee
4 years ago
C
cMoLeVoyager
asked in How It works

How Alert Auto Resolve Works

I'm new to Nutanix and learning as I go. I'm looking at monitoring and alerting and noticed an alert that has not auto resolved. The specific alert is: Node Marked To Be Detached From Metadata Ring I've run ALL NCC Health Checks on the node and it comes back healthy. This alert is set to auto resolve but for some reason will not resolve. I check policy and the auto-resolve checkbox is checked. I did some digging and found a KB article (#000004269) for alert_auto_resolve_helper. I read about this NCC check and I don't see this as an available check in my environment. Any thoughts and tips are appreciated. Thanks!

5
C
4 years ago
H
hienleOutrider
asked in How It works

A question about NearSync DR

Hi, My customer is considering leveraging NearSyncDR for their production clusters. Looks like I have to explain to them how NearSync should be configured and how it works to match their needs for future plan. As it matters, I have dived around Nutanix portal for some documents related to this technology but nothing explains clearly why it should run by its behavior in the example below: In the case I configured a schedule that repeats 1 min and retention policy of local cluster for 5 days, NearSync will work as that it will: [list] [*]Create a snapshot per minute and retain it for 15 minutes. [*]Create hourly snapshots and retain for 6 hours. [*]Create daily snapshots and retain for 5 days. [/list]So the question is if a snapshot A was created and deleted in 15 mins later, in the case user wanted to use this snapshot A to recover his file, how did he do? Is snapshot retaining time able to be changed by any command?

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M
Nutanix Employee
4 years ago
R
Ridwan_Algorism
asked in How It works

Getting started with Nutanix

Hi Friends, It's nice joining you in this wonderful community. I'm Ridwan Oladipupo from Algorism Limited, Nigeria. I'm representing my company as a System Engineer saddled with the responsibility of handling the technicalities of Nutanix during POC. Please I'm absolutely new to the system, I've started with nutanix school, but I felt that is not sufficient enough to get the Job done. I need to get with the guys doing the job. I would be glad if anyone can volunteer to mentor me on this solution. Thanks in anticipation.

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Chaitrali Deshpande
Nutanix Employee
4 years ago
A
AnmarExplorer
asked in How It works

virtual for learning

Hey guys,I don't have Nutanix and I want to practice on Nutanix - is there virtual image I can use for practice?

1
Chaitrali Deshpande
Nutanix Employee
4 years ago
J
JayakumarTrailblazer
asked in How It works

NGT VS Vmware tools

Hi, I can see both the NGT and vmware tools in a VM deployed in Nutanix Esxi cluster,when access it via prism? Which one I can able to install?Is there any difference between NGT and Vmware tools?or shall I install NGT in a VM deployed in Nutanix ESxi cluster?Please clarify Regards Jai

1
danny_sre
Nutanix Employee
4 years ago
andymlloyd
andymlloydTrailblazer
asked in How It works

Latest Powershell CmdLets for 5.11

There appears to be an issue with the latest Powershell Cmdlets for Version 5.11 that reports itself as Version 5.1.1 (not 5.11) so there is a mismatch. This will bring up a Warning dialogue box asking you if you want to continue with this mismatch (Cluster Version 5.11 and CmdLets Version 5.1.1). This can affect any Powershell Automation Scripts you have running that will be waiting for user intervention! You can change the Nutanix Connection method to Force the Connection using the following syntax: Connect-NTNXCluster -Server "Your server here" -UserName "Your user" -Password "Your password" -AcceptInvalidSSLCerts [b]-ForcedConnection[/b] [b]Note: It is the ForcedConnection that enables the bypass of the mismatch for your scripts.[/b] Hopefully they will update the Version with the next iteration of the Cmdlets without the apparent typo of 5.1.1 instead of 5.11. Please feel free to "Like" to mark as "Best Answer" Kind Regards Andy [user=95361]andymlloyd[/user]

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danny_sre
Nutanix Employee
4 years ago
HITESH0801
Nutanix Employee
HITESH0801Nutanix Employee
posted in How It works

REST API Authentication

Nutanix REST API gives flexibility to a developer or an administrator to create scripts which can execute administrative jobs on a Nutanix cluster. Using the API, you can request information about different entities in the cluster or even change some configuration. Everyone at the end of the day wants to make sure that their infrastructure is fully secure.  So what about Authentication? What kind of authentication does REST API require?   Nutanix support multiple authentication options. Want to know about them and how to configure and use them in your scripts? Give the following KB a readKB-2257 Want to know more about Nutanix REST API and different dev tools we provide? Log on to https://www.nutanix.dev/ Want to know more about Nutanix REST API Explorer and play around(with caution) with the APIs in your Nutanix Cluster? REST API Explorer    

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HITESH0801
Nutanix Employee
4 years ago
C
ChristanixScout
asked in How It works

Metro Availability (Standby Site Maintenance steps)

Hello, I will need to power off a "Metro Standby Site", which has VMs running on it. I would like to manually migrate those VMs to the primary (active) site and Shut down / Power Off the nodes in the Standby site approx. 24-36 hours. All VMs need to be running on the active side and no VMs are to be restarted (RTO + RPO =0). The steps I propose to take to achieve the goal are as follows: I have included as much environment info as possible. Any insight or corrections to this process are welcome. Thanks in Advance [b]Phase I (Configure Standby Site)[/b] [list=1] [*]Disable/suspend the (x1) asynch PD (from Primary) [*]Update VMware DRS Rules (Manual) (from Primary) [*]Disable HA [*]Manually perform vMotion of all VMs to active site. [*]Configured VM affinities to the hosts of the primary site and set the DRS rules to Fully Automated. [*]Create new VMGroup and Host Group if needed [*]I do not want to disable DRS and lose my DRS Affinity Rules [*]Disable Metro per PD (x3) (from

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M
Nutanix Employee
4 years ago
J
johngVoyager
asked in How It works

Fibre Channel connectivity to old SAN

Can you use a FC card in one node of a Nutanix cluster to do a storage Vmotion / migration to the New esxi Hosts in the cluster ? FC card will present the current VMFS partition to the new esxi host running in the cluster .Then storage vmotion the vm's across to the new storage( NFS partition in the nutanix cluster ) Is this possible ? Prefered option as NFS would only be on a 1 gig network and we need to do this quickly Any input will be appreciated ?

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M
Nutanix Employee
4 years ago
M
Nutanix Employee
MutahirNutanix Employee
posted in How It works

ESXi - Shutting down the cluster​ - Maintenance or Re-location

In this post we will go through the steps required to shut down and power off all hosts in a VMware vSphere cluster on AOS to perform maintenance or other tasks such as physical hardware relocation. Note: Upgrade to the most recent version of NCC before proceeding with the following steps. Points to consider before attempting to shutdown a vSphere Cluster running atop AOS:Cluster health and Resiliency (Prism Dashboard) vCenter hosted on the same AOS cluster or outside? Any on-going / running protection domain replication? User Virtual Machines shutdown CVM – Controller virtual Machines shutdown Access to ESXi Hosts (SSH & ESXi Host Client)Steps to ShutdownSSH to a Nutanix Controller VM (user : nutanix) and run an NCC health check prior to the scheduled shutdown. If there are any errors or failures, check the relevant KB or contact Nutanix Support.ncc health_checks run_allShut down all the VMs in the Nutanix cluster. Verify if vCenter VM is running on the same Nutanix cluster that y

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M
Nutanix Employee
4 years ago
HITESH0801
Nutanix Employee
HITESH0801Nutanix Employee
posted in How It works

Checking Upgrade history

Maintaining a big infrastructure requires planning and knowing your architecture inside and out.Let's say, sometimes you need to check the upgrade history of different components in your cluster.Sometimes you want to know when you last upgraded AOS or Nutanix Files.The timestamp of the upgrade.Let's say you want to plan a future upgrade and creating a time-line and want to know when you upgraded the software last and at which version.We all need this information, either to maintain a proper record of our cluster infrastructure or to plan the future upgrade.So how can we achieve this?Give the following Knowledge base article a read to find out the upgrade history of different components in your cluster and plan your future upgrades accordingly.KB-1151 Want to know how upgrades work in Nutanix? Try going through the following Knowledge Base to understand how upgrades work in Nutanix architecture.KB-6945 Have a question regarding upgrade workflow? Drop a comment and let’s start a conversa

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HITESH0801
Nutanix Employee
4 years ago
G
galad2003Adventurer
asked in How It works

PowerShell Command Clone Virtual Machine

Could we get some more documentation on this command?Clone-NTNXVirtualMachineOne of the required parameters is -SpecListI would like some clarification on this parameter and how to use it. Is this an array of values? Am I linking to a csv or json file?An example would be nice.Using the UI, I currently clone a reference image to create vm’s and I would love to get a PS script to work to do the same. I can get it to work with the ACLI commands but PS is a bit more versatile and I believe I could get it to do more if I understood this command and specifically this parameter better.

2
HITESH0801
Nutanix Employee
4 years ago
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works

New KB Articles Published on Week Ending November 16, 2019

Below are new knowledge base articles published on the week of November 10-16, 2019.KB 8349 - AHV | VM Goes Offline After Migration KB 8415 - Alert - A1132 - EntitiesSkippedDuringRestore KB 8512 - VM does not boot from Windows OS mounted as CD-ROM if VM already has OS installed on DISK Drives KB 8522 - LCM inventory failure "The requested URL returned error: 404 Not Found" in a dark site LCM environment KB 8525 - Alert - A130202 - AtlasNetworkingHostMemoryReservationFailure KB 8526 - Alert - A130201 - AtlasNetworkingHostConfigError KB 8527 - Pre-check:test_vcenter_connectivity KB 8540 - Pre-Upgrade Check: test_version_check KB 8544 - Pre-Upgrade Check: test_co_nodes_present KB 8551 - DiscoveryOS: Cluster Expansion - Cannot add or discover nodes : IPMI console displays phoenix prompt KB 8553 - How to change TimeZone in Move VM KB 8559 - Alert - A1182 - ShellvDisksAboveThresholdNote: You may need to log in to the Support Portal to view some of these articles.

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Albert Mendoza
Nutanix Employee
4 years ago
M
Nutanix Employee
MutahirNutanix Employee
posted in How It works

AHV - Shutting down the cluster​ - Maintenance or Re-location

Nutanix offers a distributed data and control plane, so it’s fairly easy to start, stop and graceful shutdown a cluster. Even, in abnormal / dirty shutdowns, Nutanix cluster has powerful self-healing capabilities - as all data & meta-data is distributed across the cluster which significantly reduces the chances for data corruption or data-loss. However, as a Nutanix Cluster hosts business critical data and applications, it is important to ensure all services stop in a graceful manner and all data + meta-data is consistent. This allows the cluster to be restarted in a healthy - usable state later.There can be several reasons to gracefully shutdown a running Nutanix AHV & AOS Cluster. When shutting down a Nutanix Cluster, following order needs to be followed:User VMs Shutdown AOS Shutdown - Data services / Cluster components CVM Shutdown Hypervisor ShutdownIn this post, we will focus on the shutdown process for a Nutanix Cluster running with AHV (Acropolis Hypervisor).Points to C

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M
Nutanix Employee
4 years ago
S
SudhirkvAdventurer
asked in How It works

Migration using move in Detail

Hi Team, Please let me know if you can share the Detailed Migration plan from ESXi to AHV. Please share the document or the link. Regards.

2
S
4 years ago
HITESH0801
Nutanix Employee
HITESH0801Nutanix Employee
posted in How It works

AHV Networking | Not able to delete a network

Let’s say you are managing an Infrastructure and have a range of networks defined in your environment and now you have to delete a few.You go to Prism, try deleting the network but get a generic error.So what’s going wrong here?Why can’t you delete a network?Well, one possibility is that if there are NIC connected to the network, it won’t let you delete the network, kind of like a guard-rail.So what can you do to mitigate it?Try giving the following KB a read KB-8234 Want to know more about AHV Networking? AHV Networking Best Practices  Still confused about AHV Networking?Drop a comment and let’s start a discussion. 

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HITESH0801
Nutanix Employee
4 years ago
HITESH0801
Nutanix Employee
HITESH0801Nutanix Employee
posted in How It works

AHV Networking | Enable, Disable and Verify LACP

LACP configuration is always a tricky business for every administrator and network engineer and enabling and verifying the configuration of LACP on NX Nodes should not send chills down your spine.First, let’s understand why we need LACP What are the advantages of LACP? A single user VM with multiple TCP streams could use up to 20 Gbps of bandwidth in an AHV node with two 10 GB adapters. A traffic-hashing algorithm such as balance-TCP can split traffic between multiple links in an active-active fashion. Because the uplinks appear as a single L2 link, the algorithm can balance the traffic among bond members without any regard for switch MAC address tables. With LACP, multiple links to separate physical switches appear as a single layer-2 link.Note: To use multiple upstream switches, you must configure MLAG or vPC on the physical switch  Points to seriously consider before jumping towards configuring LACP Read the following a guide to understand AHV Networking better            AHV Networ

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HITESH0801
Nutanix Employee
4 years ago
K
Nutanix Employee
kenNutanix Employee
posted in How It works

New KB Articles Published on Week Ending November 9, 2019

Below are new knowledge base articles published on the week of November 3-9, 2019.KB 7563 - NCC Health Check: ofpfmfc_table_full_check KB 8279 - Alert - A130116 - Automatic Promote Metro Availability KB 8326 - AHV | How to convert VM running Windows 10/2016/2019 from BIOS to UEFI KB 8413 - Alert-A1087-Metadata Volume Snapshot Persistent Failure KB 8451 - Move Migration Plan fails due to duplicate VMUuid KB 8477 - NCC Health Check: remote_site_in_same_datacenter_check KB 8485 - Alert - A130088 - Failed To Snapshot Entities KB 8487 - Alert - A130197 - VmRestorationFailed KB 8492 - Nutanix Files - While trying to update permission using Windows Explorer "Enable inheritance" is not working KB 8495 - Missing vnics after AHV Protection Domain Failover. "Failed to find a network: Unknown network" error KB 8504 - Pre-upgrade check: test_vlan_detection KB 8506 - Era - Unable to register Cluster with due to non-UTC timezone on Era Server VM KB 8520 - Alert - A130199 - VM Migration Failed KB 8521

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K
Nutanix Employee
4 years ago
S
Nutanix Employee
sbarabNutanix Employee
posted in How It works

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. Usually Compression should be used first, as de-duplication is recommended only on some specific scenarios (please, check documentation links provided below).   Compression: ============ You can enable compression on a storage container. Compression can save physical storage space and improve I/O bandwidth and memory usage which may have a positive impact on overall system performance. The following types of compression are available. -  Post-process compression:   Data is compressed after it is written. The delay time between write and compression is configurable, and Nutanix recommends a delay of 60 minutes. If compression is enabled in "Post-process", then existing data will also

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S
Nutanix Employee
4 years ago
A
Andrew SeehaferPathfinder
asked in How It works

VM Crashed Need access to data

I have had a vm fail and now I need access to its storage drive, is there a way to mount its storage drive to a new vm or browse and recover data?

1
Alona
Nutanix Employee
4 years ago
E
Erik Ha
asked in How It works

Prism Central v3 Clone API Error

Hello, I'm trying to clone from a known UUID (our template) but I keep getting a 400 code for "Bad request" Ex : (Using Postman for this example, but have also tried with POSH and had the same result) POST https://1.1.1.1:9440/api/nutanix/v3/vms/{UUID}/clone Basic Auth - admin/pw Headers - Content-Type:application/json Once I send the API call, this returns : { "api_version": "3.1", "code": 400, "message_list": [ { "message": "Bad request.", "reason": "BAD_REQUEST" } ], "state": "ERROR" } Any advice / help would be appreciated. This has been boggling me as to why it'd throw this error. Thank you!

1
S
Nutanix Employee
4 years ago
V
vhsAdventurer
asked in How It works

NCC log collector Growing

Hello Masters, Today I have this alert: System Non-Root Partitions Space Usage HighI read this KB https://next.nutanix.com/installation-configuration-23/cvm-non-root-partitions-space-usage-high-clear-space-safetly-33597and check my filesystem and all files inside of this directories are ok (small sizes):/home/nutanix/data/cores/ /home/nutanix/data/binary_logs/ /home/nutanix/data/ncc/installer/ /home/nutanix/data/log_collector/My problem look to be at the file  “/home/nutanix/data/logs/ncc_log_collector.log”. It has actually this size (14 and 6 GB): $ allssh du -h ~/data/logs/ncc_log_collector.log================== 192.168.150.92 =================5.7G /home/nutanix/data/logs/ncc_log_collector.log================== 192.168.150.94 =================14G /home/nutanix/data/logs/ncc_log_collector.log================== 192.168.150.96 =================238M /home/nutanix/data/logs/ncc_log_collector.logthe file don’t show error, only INFO. It safe to delete it ?? can I delete it using “rm /home/n

1
M
Nutanix Employee
4 years ago
S
Nutanix Employee
sbarabNutanix Employee
posted in How It works

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 environment. Simply run:To check if it is already set up:nutanix@cvm$ ncli cluster get-remote-support-statusTo start itnutanix@cvm$ ncli cluster start-remote-supportTo close itnutanix@cvm$ ncli cluster stop-remote-support For troubleshooting  instructions, please refer to public nutanix KB titled: “Nutanix remote Support Channel Troubleshooting Guide”. 

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S
Nutanix Employee
4 years ago

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