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HITESH0801
Nutanix Employee
HITESH0801Nutanix Employee
posted in Move Application Migration
Move Series | Common guidelines

Considering using Nutanix Move to migrate your environment to AHV but confused regarding the compatibility and firewall requirements Let’s break the information to help you plan your migration smoothly The following guide lists the firewall requirements and the ports to be opened for the Nutanix Move Move firewall Guide So what should be the AOS version and the supported Source Hypervisors which are supported and recommended by Nutanix? Go through the compatibility matrix below to give you a better idea regarding the compatibility of Nutanix Move with a different hypervisor Move Compatibility  Matrix Are there any limitations for Migration? Yes there are few limitations which should be kept in mind before using Move Move limitation Have a query regarding Nutanix Move? Start a conversation in the Move Application Migration forum  

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HITESH0801
Nutanix Employee
M
Nutanix Employee
MutahirNutanix Employee
posted in Installation & Configuration
Selecting a Time Source for your Nutanix Cluster

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

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Nutanix Employee
Alona
Nutanix Employee
AlonaNutanix Employee
posted in Installation & Configuration
VM High Availability (HA) on AHV

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

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Alona
Nutanix Employee
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!

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Nutanix Employee
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

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M
Nutanix Employee
HITESH0801
Nutanix Employee
HITESH0801Nutanix Employee
posted in Move Application Migration
Move Series | Migration of large Data

Thinking of migrating your workload from a different hypervisor to AHV but confused regarding the timeline. Migration of large data is always a time-consuming process and should be planned effectively. Nutanix presents you with an estimated time taken for migration of different workloads with a different configuration. Planning your maintenance  window for the migration? Go through the link mentioned below to get an estimate idea regarding the time taken for migration and plan accordingly. Move Migration Guide    Have a query regarding Move?  Start a conversation in the Move Application Migration forum

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HITESH0801
Nutanix Employee
A
andylimAdventurer
asked in Installation & Configuration
NX-1175S-G6 New setup unable to pass foundation stage

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 

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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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Nutanix Employee
Alona
Nutanix Employee
AlonaNutanix Employee
posted in Installation & Configuration
Migrating Windows 2003 and 2008 from VMWare ESXi to Nutanix AHV using Nutanix Move

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

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Alona
Nutanix Employee
M
Nutanix Employee
MutahirNutanix Employee
posted in How It works
Hardware Compatibility with AOS & Hypervisors

In order to check Nutanix AOS, AHV or 3rd Party Hypervisor Compatibility with certified hardware, you can visit the Nutanix portal and select "Compatibility Matrix". Home > Documentation > Compatibility MatrixYou can check compatibility for:Hardware model, for e.g. NX, HPE, Dell, Cisco UCS AOS Version Hypervisor Version (AHV, ESXi, Hyper-V, XEN)You can filter by hardware model, AOS version or Hypervisor Version.Visit Compatibility Matrix (Nutanix portal account required) to check for hardware compatibility with AOS and Hypervisors (AHV / ESXi / Hyper-V / XEN).From the same page, you can also check AHV Guest OS compatibility as well. 

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Nutanix Employee
G
guifAdventurer
asked in How It works
Failed SATADOM

Hi everybody. Is it possible to know if SATADOM is broken or has anomalies?Or the only way to know is to restart a node? thanks!

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HITESH0801
Nutanix Employee
A
angeessanAdventurer
asked in Move Application Migration
Uefi Servers do not boot after V2V to AHV using Move 3.3.1

Hello all,05 months ago, I faced from some difficulties to perform P2V to AHV for UeFi servers : I performed P2V using VMware Converter to migrate to an ESXi server; and after I used “move” to migrate to AHV. While booting the VM, I saw a black screen and nothing else appeared on the screen.As I said above, it happened 05 months ago; At this time, Nutanix did not support migration of Uefi servers yet.Since the release of AOS5.11 and Move 3.3, Nutanix supports the migration of Uefi servers (As explained in the release notes).So I migrated AOS to the latest version (5.11.1) and used Move 3.3.1 to perform migrations of 03 servers that use Uefi.In spite of that, the VMs displays nothing while booting...even if I wait for several minutes, I get nothing.In PRISM, I switched the boot mode to BIOS and after to Uefi, but I got the same results.In vCenter, I switched the boot mode to BIOS before performing migration. After Migration (using Move 3.3.1), the results are the same. Could you help me

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Roberto_MXVoyager
asked in Installation & Configuration
Installation failure: fatal Running CVM installer

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,

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HITESH0801
Nutanix Employee
HITESH0801Nutanix Employee
posted in Move Application Migration
Move Series | OS supported for migration

Nutanix Move (Move) is a cross-hypervisor migration solution to migrate VMs with minimal downtime. Let’s say you have a range of Virtual Machines with a different operating system in your environment and now confused which Virtual Machines are supported by Nutanix Move for Migration. There are different types of Migration and the pre-requisites regarding the supported OS can change for different types. ESXi To AHV. ESXi to ESXi. AWS Migration. Hyper-V to AHV. Interested to know more Nutanix Move? Go through the  Move Guide Move Guide  Confused regarding Nutanix Move or have a query regarding the functionality? Drop a comment and let’s have a discussion.  Start a conversation in the Move Application Migration forum  

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HITESH0801
Nutanix Employee
M
MarekSWIVoyager
asked in How It works
How to get VM/Host/Cluster/etc. statistics from API in bulk?

Hi, is there a way how to get VM/Host/Cluster/etc. statistics from API in bulk? We know about the /stats endpoints, but those only allow to get stats for single entity, so in case there are hundreds of VMs in cluster that would mean hundreds of separate requests to API. We don't really want to put lot of strain on the cluster just by polling stats. Our default polling interval is several minutes, so using projection=stats doesn't really work for us (as I believe it provides current value) and we'd need to know the stats for the time interval between our polls. Thanks so much for your time. Best regards,Marek

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HITESH0801
Nutanix Employee
D
david.chanVoyager
asked in How It works
Nutanix Sizer - downstroking?

 Hi, can someone be kind enough to explain what is Downstroking? this effects my SSD config. It happened when I had configured 1x 1.92TB SSD and changed to 2x 960GB SSD (can’t), and forced me to configure to 2x 1.92TB SSD instead. TIA. 

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Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works
New KB Articles Published on Week Ending November 2, 2019

Below are new knowledge base articles published on the week of October 27-November 2, 2019.KB 7837 - How to update expired licenses KB 8266 - Alert - A1037 - Node Forwarding Metadata Requests KB 8275 - Alert - A130161 - Protection Rule Conflict Occurred KB 8369 - AHV: Create Tenable Core with Nessus VM from OVA KB 8388 - Expected Inputs for Alerts Notify Creation on API v3 KB 8393 - CVM inaccessible via SSH after removing node or destroying cluster KB 8434 - Host Kernel panic due to BIOS setting change (CPU Configuration settings) KB 8439 - LSI Firmware Upgrade for Hyper-V 2012R2 KB 8441 - Snapshot Chain Height has exceeded the threshold limit KB 8445 - AHV: Ubuntu Cloud Image VM creation KB 8446 - Portable Foundation Failing "ERROR Exception in <ImagingStepInitIPMI(<NodeConfig(x.x.x.x) @af70>)" KB 8453 - Alert - A1044 - DiskBad KB 8454 - High utilization noticed on CVM loopback interface KB 8459 - [Karbon] Password with $ symbol breaks K8s cluster deployment KB 8460 - Alert-

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Albert Mendoza
Nutanix Employee
HITESH0801
Nutanix Employee
HITESH0801Nutanix Employee
posted in Move Application Migration
Nutanix Move now supports UEFI Enabled VM

Want to shift to an AHV cluster but worried about the migration of your UEFI boot enabled VMs. The latest version of Move 3.3.0 now supports migration of UEFI enabled VM. So what all you need if you want to migrate your virtual machines using Move AOS  version should be 5.11 or above Move version should be 3.3.0 or above  The UEFI VM should be supported by AHV   Please check the compatibility matrix for the UEFI Supported VM before proceeding.Compatibility  Matrix    Interested to know more about the technology?  Go through the guide Move User Guide    Start a conversation in the Move Application Migration forum

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HITESH0801
Nutanix Employee
darshan.patel
darshan.patelTrailblazer
asked in How It works
Why the 'Guest OS' field in nutanix vm is NULL?

When I pull the VM details using powershell, the Guest OS for all of my VM is empty. I am using the correct syntax '$vm.guestOperatingSystem' to pull the information. All the other information like VMName, Container, PowerState, NetworkAdapters, etc... are coming except Guest OS and Description of VM. Even if I create a new Windows Server 2012 R2 VM, the Guest OS field shows nothing for new VM as well. I have 47 VMs currently on a Nutanix host but the Guest OS information is empty for all of them. Please let me know if anyone else is having this issue and how to resolve it. Details: ---------------------- Hypervisor: AHV

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Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works
Top KB Articles for October 2019

Below are the top knowledge base articles for the month of October 2019.KB 4141 - Alert - A1046 - PowerSupplyDown KB 1540 - What to do when /home partition or /home/nutanix directory is full KB 4905 - NCC Health Check: notifications_dropped_check KB 4188 - Alert - A1050, A1008 - IPMIError KB 4409 - LCM: (LifeCycle Manager) Troubleshooting Guide KB 1113 - HDD/SSD Troubleshooting KB 4116 - Alert - A1187, A1188 - ECCErrorsLast1Day, ECCErrorsLast10Days KB 4519 - NCC Health Check: check_ntp KB 2090 - AHV | Host and Guest Networking KB 7503 - G6, G7 platforms with BIOS 41.002 -DIMM Error handling and replacement policy KB 4158 - Alert - A1104 - PhysicalDiskBad KB 2608 - Cluster Health Checks Incorrectly Show Warnings and Failures KB 4273 - NCC Health Check: aged_third_party_backup_snapshot_check KB 3523 - How to create a Phoenix ISO or AHV ISO from a CVM or Foundation VM KB 4541 - Alert - MetadataDiskMountedCheck KB 1863 - NCC Health Check: sufficient_disk_space_check KB 3357 - NCC Health Ch

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Albert Mendoza
Nutanix Employee
T
tbailey1Adventurer
posted in X-Ray Performance & Reliability Tests
Looking For Additional Results For Comparisons

Would anyone have X-Ray Four Corners Microbenchmark results for the following scenarios:2-node Nutanix cluster, 1 GB uplinks 2-node Nutanix cluster, 10 GB uplinks 3-node Nutanix cluster, 1 GB uplinks 3-node Nutanix cluster, 10 GB uplinksI'm testing some scenarios against Cisco Hyperflex and HPE SimpliVity (which I currently have environments to test against), but don't have access to any Nutanix hardware.BTW...X-Ray is a GREAT product!

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HITESH0801
Nutanix Employee
HITESH0801Nutanix Employee
posted in Installation & Configuration
NGT Series | Regenerating NGT Certificates

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 

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HITESH0801
Nutanix Employee
H
hienleOutrider
asked in How It works
Where is my VirtIO ISO file in container?

Hey guys,I have uploaded some of ISO and disk image files including VirtIO to container via Prism Central and they all are marked as ACTIVE means that the upload process has completed successfully.But when I looked into the container to find the uploaded files via command line or WinSCP, all of them are being kept in container except for VirtIO iso file. Do you know how I can find it? Thanks and Regards. 

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B
Bryce_Smith
asked in Installation & Configuration
VMWare Host Power Management Policy

I have a user who is requesting that we change our VMWare Host Power Management Policy from Balanced to High Performance. Questions 1: Do Nutanix hosts support VMWare Power Management features?Question 2: We are migrating to all AHV early next year. Does Nutanix have a corresponding setting for VMWare Host Power Management Policies?

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HITESH0801
Nutanix Employee
E
EH_GIP_SYSTEMSVoyager
asked in How It works
Nutanix cluster move and CVM IP change

Hello,We plan to move some nutanix cluster to a new location and we already know that it will not be possible to keep the network vlan and IP setup for the installation.We found the document on how to change the CVM IP and you first advice is to keep the initial network if possible.So we should understood what are the argument pro and against regarding the IP reconfiguration process, can we have some performance issue?In some case we want to keep the data on the cluster and other don't take care of them. So what are the best choice to manage this different move.And if some of yours have already perform this kind of operation, could you share your feedback or advice on that.Thanks for your answers.Regards.David ALEXANDRE.

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Nutanix Employee

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