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In the default AHV network schema, ther’s a connection between the AHV management and the virbr0. Can you explain me the purpose of that connection and the IP adresses used ? 

Hi,I would like to configure anti-afinity on on the VMs. I checked this only able to configure thru command. To configure the rules, does the VMs need to be powered down?

As Nutanix is constantly striving to be an API driven company and exposing more of its core functionality via API’s as well as improving integration with tools such as Ansible and Terraform, we hope you have been making the most of it. For example, did you know how to check the status of NGT and the NGT communication link using API’s? It is easily obtainable using the v3 REST API exposed from your Prism Central. Issue a GET request to https://<PC_IP_address>:9440/api/nutanix/v3/vms/<vm_uuid> Filter through the response to find a block similar to this.        "guest_tools": {        "nutanix_guest_tools": {          "available_version": "1.90.1",          "ngt_state": "INSTALLED",          "iso_mount_state": "MOUNTED",          "state": "ENABLED",          "version": "1.1.2",          "enabled_capability_list": [            "VSS_SNAPSHOT"          ],          "guest_os_version": "windows:64:WindowsServer2008R2Enterprise",          "is_reachable": false        }      }       

Hello, I am trying to collect some VM performance data from Prism element. I have noticed that some stats do not keep history for more than 5 minutes.   Example: controller_io_bandwidth_kBps vs. controller_read/write_io_bandwidth_kBps   GET 'https://{IP}:9440/PrismGateway/services/rest/v1/vms/{vmid}/stats/?metrics=controller_io_bandwidth_kBps&startTimeInUsecs=1589462400000000&intervalInSecs=300'   "statsSpecificResponses": [     {       "successful": true,       "message": null,       "startTimeInUsecs": 1589462400000000,       "intervalInSecs": 300,       "metric": "controller_io_bandwidth_kBps",      "values": [         8106,         5500,         8404,         5618,         12793       ]     }   ] } GET 'https://{IP}:9440/PrismGateway/services/rest/v1/vms/{vmid}/stats/?metrics=controller_read_io_bandwidth_kBps&startTimeInUsecs=1589462400000000&intervalInSecs=300' {   "statsSpecificResponses": [     {       "successful": true,       "message": null,       "startTimeIn

If the clusters are related with prism central (so I should use v3), Can i use v2 to actions like: manage NIC, Attach/Detach Disks, manage snapshots from API v2?Is recovery plans is the same as snapshots here? I want to create jobs for automatic snapshots, but I do not see thios possibility in v2I am using the same account for api v2 and v3 actions, in production environment with my own IP, it will be the same host? It is specified in API Documentation, but I want to be sure if the host for both will be the same - eg. nutanixtest.com/v2… and nutanixtest.com/v3…Thanks!

HPE® ProLiant® Hardware CompatibilityThis document specifies the hardware, software, and firmware that the Nutanix platform requires to run on HPE® ProLiant® servers. Supported Hardware Models Hardware Hardware Supported Models HPE® Gen10 Servers HPE® ProLiant® Servers DL360 Gen10 8SFF DL380 Gen10 12LFF DL380 Gen10 24SFF HPE® Apollo® System Apollo® R2600 XL170r Gen10 24SFF HPE® Gen9 Servers HPE® ProLiant® Servers DL360 Gen9 8SFF DL380 Gen9 8SFF DL380 Gen9 12LFF DL380 Gen9 24SFF  Note: HPE® and HPE® ProLiant® are registered trademarks or trademarks of Hewlett Packard Enterprise Company. All other brand names mentioned herein are for identification purposes only and may be the trademarks of their respective holder(s). HPE® ProLiant® Gen10 Servers Software and Firmware Compatibility for DL3x0 Gen10 HPE® ProLia

Nutanix cluster requires three nodes minimum but Nutanix also offers the option of two-node cluster. By configuring external witness VM in a separate failure domain to the configuration provides  resiliency features of a three-node cluster.Requirements: Controller VM minimum requirements: 6 vCPU and 20 GB memory Replication factor (RF): RF2 spanned over two nodes and RF4 for metadata on SSDs over two nodes. RF4 for metadata helps during a node failure scenario to quickly transition the healthy node to run in single-node mode with the metadata remaining disk fault tolerant. (Metadata in a two-node cluster is typically small, so the storage need for four copies is modest.) Drive failure effects: one node + one SSD failure (on other node) = read-only mode. Guidelines: Two-node clusters are supported only on a select set of hardware models. See KB 5943 for information about supported models. supported model The upgrade process in a two-node cluster may take longer than the usual proc

I could get a ballpark idea when the next LTS be designated. Seems like its been awhile. I would like to get off the STS train.

Below are new knowledge base articles published on the week of February 21-27, 2021.KB 9288 - Alert - A1102 - PhysicalDiskAdd KB 10533 - Alert - A200403 - Non Compliance with Host Affinity policies. KB 10535 - [ Karbon ] Alerts stay in firing state in a Karbon Cluster UI KB 10815 - VMDK disk image uploaded to Prism shows as "Inactive" with no size KB 10819 - [Karbon] Karbon UI not loading after scaleout PC upgrade to pc.2021.1 - "upstream connect error or disconnect/reset before headers. reset reason: connection failure" KB 10830 - vCenter /storage/seat partition becoming full KB 10832 - Nutanix Move | Migration Plans Disappear after Move-3.7.1 Upgrade KB 10840 - LCM: SATA DRIVEs firmware fails with error: 'EnvironmentModule' object has no attribute '__getitem__' KB 10850 - Physically relocating a block within an online clusterNote: You may need to log in to the Support Portal to view some of these articles.

Below are the top knowledge base articles for the month of February 2021.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 on a Controller VM is full KB 4141 - Alert - A1046 - PowerSupplyDown KB 4409 - LCM: (Life Cycle Manager) Troubleshooting Guide KB 4158 - Alert - A1104 - PhysicalDiskBad KB 1113 - HDD/SSD Troubleshooting KB 2090 - AHV host networking KB 4519 - NCC Health Check: check_ntp KB 6945 - How Upgrades Work at Nutanix KB 5582 - NCC Health Check: idf_db_to_db_sync_heartbeat_status_check KB 2473 - NCC Health Check: cvm_memory_usage_check KB 4639 - How to place CVM and host in maintenance mode KB 6153 - NCC Health Check: default_password_check and pc_default_password_check KB 8932 - NCC Health Check: pc_vm_resource_resize_check KB 1863 - NCC Health Check: sufficient_disk_space_check KB 3741 - NGT: Nutanix Guest Tools Troubleshooting Guide KB 4273 - NCC Health Check:

LCM simplifies Nutanix IT infrastructure life cycle operations by consolidating software and firmware component upgrades into a unified control plane. Prerequisites·   It's recommended to have a cluster with at least three nodes to perform a normal rolling hypervisor upgrade.·   The 2-node case isn't well supported and might require extra steps to enable rolling upgrades, like installing and configuring a Witness VM.·   The 1-node cluster upgrade is also supported but requires LCM 2.2.3 or newer. ·       LCM 2.0 is considered old and not recommended for the AHV upgrades, instead one has to use the legacy "Upgrade Software" method in "Settings".·       Starting LCM 2.2.3, AHV upgrade is supported, both single node cluster and regular cluster, but it only support el6 based AHV upgrade.·       Starting LCM 2.3, AHV upgrade is fully supported, single node, multiple nodes cluster, upgrade from el6 based AHV to el7 based AHV, el7 based AHV to el7 based AHV, UEFI el7 based AHV to UEFI el7

The iSCSI Data Services IP address is used to provide iSCSI access to the cluster storage. It is primarily used by Nutanix Volumes, but is also leveraged by other products such as Calm, Leap, Karbon, Objects and Files. This IP address is owned by one CVM of a cluster at a time, with ownership changing among the CVMs as needed to ensure that it is always available. To note, the iSCSI Data Services IP address CVM owner does not necessarily correlate with the CVM that currently maintains Prism service leadership.To find the current CVM acting as the iSCSI Data Services IP address owner, simply obtain the IP address output from all of the CVMs (generally by using the “allssh ifconfig” command) and verify which CVM reports as having this address. To find when a ownership change has occurred, the Stargate service logs from each CVM can be filtered for entries regarding “eth0:2”.You can find more information regarding the iSCSI Data Services IP Address from the Nutanix Volumes Guide along wit

Hi. I have a question while using Xi Frame.If I want to use the List active session and stop  session functions among the Xi Frame functions, what privileges should the administrator at least be given to use them??For detailed functions, please check the red underlined area in the attached photo. 

Hi Nutanix Community, We often wonder what is the real storage capacity available on a Nutanix cluster. We have a three node cluster, in RF2. In Prism Element main page, under "Storage Summary", I see : 20.87TiB free (logical) of 22.37 TiB https:// Data Resiliency is OK. (green) Which one of the following statements is correct ? I can fill my storage up to 22.37 TiB without losing the data resiliency (=I can lose a node without losing data). I can fill my storage only up to 66% of 22.37Tib (= 14.76Tib) without losing the data resiliency Thank you 🙂

Below are new knowledge base articles published on the week of February 14-20, 2021.KB 9314 - Nutanix-Auth-FAQ KB 9866 - NCC Health Check: ergon_checks KB 10310 - Alert A801101 - L2StretchDeletionFailure KB 10574 - Pre-Upgrade check: test_vmd_node_esxi_upgrade_versions_compatible KB 10657 - Discrepancy between Memory Capacity on Prism and Hyper-V KB 10720 - Modify snapshot expiration date and time for Xi Leap snapshots KB 10758 - PDF Report generation fails on Prism Central after upgrading to pc.2021.1 KB 10762 - Prism Central reports showing "No Data" when multiple filtering rules are applied to filter specific entities KB 10765 - AHV upgrades from 20170830.x to 20190916.x and 20201105.x on Dell clusters fail with "Failed to run 'yum remove -y DellPTAgent dcism': 1" error message. KB 10776 - NGT installation fails on Linux VM with Permission denied error KB 10787 - LCM pre-check failing with Failed while performing pre_actions err: Unable to boot cvm [xx.xx.xx.xx] into ivu. KB 10789 -

Hi,My company is going through a major organization change, and we will be driving a lot of VM automation through Ansible.  Since all of us know that the Powershell support is woefully lacking in AHV, I would like to try to get more automation plugged in through Ansible.  Is there an example playbook out there for upgrading/installing NGT for both Windows and Linux?I know that updating NGT via Prism Central works pretty well for Windows, but once again, it fails miserably for Linux (at least OUL).  I would like to do it in an automated fashion, however, instead of 60 checkboxes at a time.  I need a feature that I can upgrade hundreds of VM’s at once and schedule it.Any assistance would be appreciated!

The shutdown token is used by a Nutanix cluster to prevent more than one entity from being down or offline during the occasion of software upgrades or other cluster maintenance. The CVM that is holding the token is the only entity allowed to be down or offline. Sometimes, for various reasons, a CVM can remain holding the token even after an upgrade or maintenance has been successfully completed. This usually does not cause any issues, however, until another upgrade or maintenance is invoked on the cluster sometime in the future. Upgrades or other maintenance pre-checks will search for any unrevoked tokens and, if existing, not proceed until that token has been properly revoked. Before manually revoking the token, it is good practice to verify that there are indeed no outstanding or ongoing upgrades or maintenance activities currently occurring with the cluster. Once confirmed, manual token revocation is often accomplished by a simple restart of the Genesis service on the CVM currently

Windows 10 VM stuck at boot and giving black screen. Tried reboot but no luck.

Hello All, I have created this great powershell script that makes VM’s in AHV. It has been a journey let me tell you, but I made it through. The one thing I would like to add to this is creating a vm with UEFI boot option. I know this needs to be done at creation and I can create it in the acli with the following: acli vm.create UEFIVM2 uefi_boot=true However; is there a way to do this with powershell? I will look at finding a way to wrap the ssh command above but it sure would be nice if it was just a parameter on the                         new-ntnxvirtualmachine cmdletIs there a way I can create the vm with UEFI with powershell? Thanks,Scott

I got some question from my college, He asked me when in prism. we set smtp server configuration. and also we set about alert email. Which network nutanix use to smtp protocol telecomunication. I mean if I set configuration like this.host name: smtp.gmail.comport: 993security mode: SSLuser: cat@gmail.compassword: ****from email address: nutanix@gmail.com and after I setting alert email, and after that alert is come. which network nutanix use sending email? 

Nutanix recommends that you use the Prism Life Cycle Manager to perform firmware updates. However, firmware must be updated manually if: The component is located in a single-node cluster, OR The component is located in a multi-node cluster, but the hypervisor the cluster is running does not support LCM firmware updates. Shutting Down a Node in a Single-Node Cluster Shutting Down a Node in a Multinode Cluster Manually Updating M.2 RAID Hypervisor Boot Drive FirmwareManually update the firmware on HW RAID M.2 boot drives on -G7 or newer platforms in cases when LCM cannot be used. Manually Updating Data Drive FirmwareManually update the firmware for a SAS or SATA data drive or update the hypervisor boot drive firmware on any -G6 platform M.2 drive (non-RAID). Manually Updating SATA DOM FirmwareUpdate firmware for a SATA DOM. Manually Updating the BMC and BIOSManually update BMC and BIOS versions. Manually Updating HBA Controller FirmwareUpdate the firmware for an HBA card.

Is nutanix licensing tied to hardware?   use case for the question is a cold DR site.Scenario - VMs are backed up w 3rd party product and replicated to a DR site, e.g. SunGard,  and now its time to restore them for the DR test.If using Nutanix at this cold DR site, you have to build it from scratch before you can being restoring VMs to it, can the licensing used at the primary site be used for this?  or is the licensing restricted to the hardware it was installed on at the primary site?   

Below are new knowledge base articles published on the week of February 7-13, 2021.KB 10630 - VM preparation in Nutanix Move fails for Linux VMs if installed curl version is below 7.19 KB 10670 - Objects - Connectivity via s3 clients might fail with error "x509: certificate signed by unknown authority" if certificates are signed by ICA KB 10684 - RedHat Satellite GUI does not show AHV hosts due to unsupported characters in AHV hostname KB 10691 - Reactive Hypervisor boot-drive break-fix fails on HPE DL Gen9 platform KB 10704 - Commvault - Unable to add Worm-enabled bucket in Nutanix Objects 3.1 - The content-md5 is message header did not match the content received KB 10722 - Cannot update vstore mapping for a remote site when NearSync is in use KB 10732 - [ Karbon ] Kubernetes upgrade might fail to initiate or get stuck on the first master node before Karbon 2.2.1 KB 10757 - Foundation Central upgrade failure in Prism Central without any Prism Element connected to itNote: You may need

Common Vulnerabilities and Exposures (CVE) is a list of publicly discovered security defects seen in the IT landscape. Nutanix is always looking to make sure these defects are patched in a timely manner.A new feature available in the Nutanix Portal under the “Security” Pane of the “Documentation” section allows customers to view the current CVEs and garner the security level of each CVE. The table also includes the Product Release in which the patch for each CVE is included and whether that version has been released.For more information about the Nutanix related CVEs, take a looking at the “Vulnerability List” section in the Support Portal and find the corresponding Nutanix product.

There are many views to esxtop. To change between these views, please use the following legendc = cpum = memoryn = networki = interruptsd = disk adapteru = disk devicev = disk VMp = power mgmtx = vsan V = only show virtual machine worldse = Expand/Rollup CPU statistics, show details of all worlds associated with group (GID)k = kill world, for tech support purposes only!l = limit display to a single group (GID), enables you to focus on one VM# = limiting the number of entities, for instance the top 5 The Memory panel displays server-wide and group memory utilization statistics. As on the CPU panel, groups correspond to resource pools, running virtual machines, or other worlds that are consuming memory  The first line, found at the top of the Memory panel displays the current time, time since last reboot, number of currently running worlds, and memory over commitment averages. The memory over commitment averages over the past one, five, and fifteen minutes appear. Memory over commitment