Deployment Success

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

Please advise me is it support Server 2019 Hyper V on Nutanix? I unable to Find the article on Nutanix Portal with server 2019? I am planing to migrate from Server 2012 hyper v failover cluster to 2019 Server Hyper V failover Cluster? Which AOS Version is support Server 2019?

We’ve migrated a handful of test VMs from our vSphere legacy architecture to Nutanix (also running ESXi)  Both on ESXi 6.5 and latest Prism/software builds, etc.  When using Nutanix Move to do the migration, we’ve noticed that the migrated VM is taking on GMT for its time when the VM boots up.  We are in Michigan so the VM is five hours ahead, but the local windows timezone Eastern. After logging in and/or rebooting, the time typically syncs up fine.  However, this proved to be a major problem when we moved a domain controller and it caused time to be off everywhere.   ncc health_checks network_checks check_ntp all comes back fine and our time sources are defined properly both in Nutanix as well as NTP oin the ESXi host.  What are we missing or is this a bug?

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? 

I have a couple of oddities going on, one is an ongoing and one was post latest PC2021. update.I was getting warnings that I was using the CVM default password so I chnaged it, it is supposed to replicate to the other CVMs but i get a health alert saying the remaining CVMs are still using the default password - any ideas why?And post PC update, i can log in using ssh but I can’t login to the web UI - I get the login screen , but after I enter username and password (not default) I get “server not available”  I have run health checks and idf checks and all seem to PASS - is there a bug in the latest PC Patch?  Just to note I can log into Prism Element with my name and password ok.Thanks in advance.

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.

Hi,I have a small cluster of 4 nodes. Disk space usage for /home in all CVMs are increasing fast. After some investigation it appears that the /data/logs folder is taking majority of space, more specifically health_server.log file which is taking about 181gb now. 18133488        health_server.log.20201224-1413011144624 sysstats Does the health_server.log file keep collecting indefinitely, there must be a limit to this log file? Thanks.Beg

Hello everybody, i would like to remove a switch from the Network view in Prism Element, which also is no longer configured under Settings => Network Switch. The cluster was moved to different network a couple of months ago. So far I was unable to remove this old network swith from the Network view in Prism Element and it’s also no longer visible using ‘ncli net list-switch’ in CVM command line. There is only the existing switch configured under Settings => Network Switch. We use AOS 5.15.4 LTS currently. If I select ‘Go to Switch details’ when selecting the old visible switch in ‘Network’, I get an error => Switch with id ‘...’ was not found ! Any idea how I can remove such a switch, which is no longer available? Regards,Didi7

We are migrating workloads from VMware (vSphere 6.5) to Nutanix AHV (AOS 5.15 LTS). With regards to VM templates, any advantage in creating new templates on AHV? Any gotchas if we migrate (as per procedure, prepare and use Nutanix Move) VM templates to AHV? Anyway, we will have to migrate most workloads, but was wondering about VM templates. We’re leaning towards erring on the side of caution and creating new templates (Linux/Windows) on AHV. However, I just wanted to know if anybody experienced issues with VMs built from migrated templates on AHV and any feedback.

Hi All,How to Migrate Clusterd VM (SQL CLUSTER) from 2012 Hyper V Failover cluster to 2019 Failover Cluser?Source Infra:Hyper V2012 with Failover ClusterVM : 2012 VM (SQL Cluster, Shared Disk) Target Infra:NutanixHyper V 2019 

Dear All,Can we use 1 G port for Hyper VM Traffic on Nutanix?

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

We are facing performance issues with Nutanix volumes configured with Oracle RAC physical nodes. The latency is very high (25-30 ms).  Anyone has any suggestions on this.

I’m trying to move a VM (Ubuntu 18.04), when the cutover is done and i make a console connection the VM, at first the screen is blank, but after a few enters, i start getting the following signs on the console:Anyone has any ideas how to avoid this? I’ve tried installing NGT prior to moving the VM - no luck. On the initial GNU GRUB screen where I choose which OS to boot, everything is fine.

Hi all expert,I have question on vdisk and volume group on VMpros and cons using vdisk? pros and cons using volume group?Let have a discuss on which is better for daily operation and maintenance. 

I have a question regarding private networks.  I have an NFS share that resides in the 192.168.20.x network, however my Nutanix public (Internet access) network is in the 10.10.2.x.  I need to create a network where my VM can talk to the NFS server.  I’ve reviewed some YouTube videos but they’re not very helpful.  Any better documentation out there?

Been having oplog errors for nearly 5 months now. I have read through the article: NCC Health Check: oplog_episode_count_check and I have been able to get the vdisk_id. The problem is that it not connected to any VM.  I have looked through all the disks connected to all my VMs and none of them are this disk. Running vdisk ls does give me this information though:     Name                      : 00054ce8-d482-d9dc-135d-1866da8ea766::NFS:2:0:457    Container ID              : 00054ce8-d482-d9dc-135d-1866da8ea766::1062    Container Uuid            : 75138a04-e025-4510-a9d1-05e319573732    Max Capacity              : 4 TiB (4,398,046,511,104 bytes)    Reserved Capacity         : -    Read-only                 : false    NFS File Name             : counters-4    NFS Parent File Name (... :    Fingerprint On Write      : none    On-Disk Dedup             : none Which doesn’t match any of the disks for my VMs.  The NFS File Name makes me think this is some kind of system disk or something.  Ca

UPGRADING SERVER FIRMWARENutanix recommends that you use the Service Pack for ProLiant® (SPP) ISO file for applying firmware updates. Perform this procedure on every host in the cluster, one host at a time. About this taskTo upgrade the firmware on a server, do the following:Procedure If the server is part of a Nutanix cluster, place the server in maintenance mode.Information about placing a server in maintenance mode is available in the host management section of the Acropolis Command-Line Interface (aCLI) documentation. See the Command Reference for the supported AOS version. Turn on the server to the SPP ISO. Connect to the iLO by using the iLO IP address. Log on to the iLO user interface by using the administrator credentials.The default administrator user name is Administrator on all HPE® ProLiant® servers. Passwords for the iLO administrator differ from one server to another, and are available on the service tag on the server. Attach the SPP ISO to the server by usi