Deployment Success

Below are the top knowledge base articles for the month of June 2020. KB 4116 - Alert - A1187, A1188 - ECCErrorsLast1Day, ECCErrorsLast10Days KB 7503 - 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 7604 - Disk space usage for root on Controller VM has exceeded 80% KB 4158 - Alert - A1104 - PhysicalDiskBad KB 1113 - HDD/SSD Troubleshooting KB 4409 - LCM: (LifeCycle Manager) Troubleshooting Guide KB 2090 - AHV | Host and Guest Networking KB 4519 - NCC Health Check: check_ntp KB 3357 - NCC Health Check: ipmi_sel_cecc_check KB 2473 - NCC Health Check: cvm_memory_usage_check KB 2486 - NCC Health Check: cvm_mtu_check KB 4273 - NCC Health Check: aged_third_party_backup_snapshot_check and  aged_entity_centric_third_party_backup_snapshot_check KB 1863 - NCC Health Check: sufficient_disk_space_check KB 3741 -  Nutanix Guest Tools Troubleshootin

Hi Probably a very simply question and more of a sanity check. I have many Win 0S servers to perform OS upgrades on. Looking to do the following..   Ensure VM has ngt installed Power down VM Clone VM Power up clone, perform OS upgrade 2 weeks later delete original VM   I assume the powered down VM doesn't actively contribute to CPU usage but storage will be ring fenced. Therefore I will see storage decrease whilst I'm upgrading VMS and before I delete the original.   Any disadvantages to making the cloned VM my new production VM rather than the other way round?   Is it ok to delete the original VM which the clone is being based off?      

i want to migrate my phyical linux server to Nutanix. is there any native nutanix tool to prform this activity?

I want to test Microsegmentation on prism central, but "AHV Free Memory Minimum 1GB for each Prism Central VM" showed up. And I can't enable Enable Microsegmentation check box. 20gb memory assigned to prism central. What was the problem ?    

I’m running PC Scaleout (5.16.1.2) on ESXi and need to migrate all 3 nodes to a new datacenter cluster and datastore (same vcenter). Is there a recommended process for this or can I simply power down one of the 3 nodes, migrate it, power it up and wait for all cluster services to start, and then move on to the next one? 

Below are new knowledge base articles published on the week of June 21-27, 2020. KB 9565 - [Nutanix Objects] Deploy failure due to docker pull issues via proxy KB 9566 - Windows VMs May Lose Network Connectivity With VirtIO 1.1.5 KB 9572 - [Karbon] Cluster deployment fails with error message "CDROM device must have IDE or SATA type adapter". KB 9578 - Hyper-V: SCVMM cannot migrate VM because version on destination host is not compatible Note: You may need to log in to the Support Portal to view some of these articles.

Has anyone else had an issue with installing the lated CE image on esxi7? It seems to shutdown after the hypervisor is created and begins the startup. After you reboot and attempt to run it in regular mode I get this message:   If I go into safe mode I get the login prompt with the host name configured:   I performed a “virsh list --all” in safe mode to get the following:   When is attempt to start the vm in safe mode, the host machine shuts down:       Any Ideas?

Hi Guys - Looking for some info with the powershell cmdlets I am writing a powershell script to list out all the ahv host name and ip address| cvm  name and ip address impi host name| ip address in a cluster What is the command to get the cvm name and their ip address in a cluster. I am not quiet sure about “Cluster Type and Region when I issue  Get-NTNXCloudCvm command… Any help would be much appreciated!   Thanks, Mahendra.

Have a situation where you need to upgrade cluster components or restart CVMs or hosts or just wish to check if your cluster health is normal?   Below listed are a few quick checks to evaluate the cluster stability. Note that the commands listed are to be run from an SSH session to any one of the CVMs in the cluster or PCVM where applicable.   No. Check Purpose CLI Command GUI method Expected output 1 Cluster services (Cluster and PC) To ensure all services are running fine on all CVMs cluster status -N/A- No services should be in 'DOWN' state 2 Metadata ring structure To ensure that the metadata ring structure is stable nodetool -h 0 ring -N/A- All the nodes must be listed and should have 'UP' and 'NORMAL' states 3 Data Resiliency To ensure that the cluster c

Is there a cli command that will tell me which VMs do NOT have NGT installed? Is there a command that will show me CD-ROM status for all VMs? (e.g. No drive available, or drive not empty) I know about ncc health_checks ngt_checks ngt_installer_version_check Thanks  

Hello guys, currently we have converged infrastructure with Cisco UCS, netapp storage and virtualization with VMware , now we want to make this our DR and want to build primary DC with Nutanix HCI, so my question is can Nutanix AHV can replicate to converged DR site? Thanks....

Syslog or ‘System Logging Protocol’ is used by routers, switches, access points, servers and of course Nutanix. It is used to send events and logs to a remote syslog server that collects, organizes and filters these logs.    In Nutanix, we provide different log modules for the core services that can be enabled separately and you can configure the logging level required for them as well. For example, if you wish to forward just the warning log messages for Acropolis, this would be the command: ncli rsyslog-config add-module server-name=<server_name> module-name=ACROPOLIS level=WARNING   For a more comprehensive look at the various modules and log levels, check out syslog server.   Bonus: Would you like to know who powered off that VM while you were sleeping?  Or in general, WHO did WHAT on WHICH OBJECT, at what TIME, from WHERE, and what was the OUTCOME? You can forward these Audit logs to your syslog server as well from Prism Central. More information on this can be foun

When there is a new patch released by VMware for ESXi, you may want to check the Compatibility Matrix on the Portal, but the matrix shows only ESXi versions and update numbers, it doesn’t show every patch build number. What to do and how to understand if the patch is supported or not? Let’s break down the ESXi versions into possible options: Versions. Those are the numbered versions, for example, 6.0, 6.5, 6.7 and 7.0. All the versions need to be qualified and the qualification is a requirement. They will not be supported if they are not qualified. Check the compatibility matrix on the Nutanix portal to see if it is supported. Updates. Those are what you usually see after the “U” in the version name, for example, 6.7U1, 6.7U2. 6.7U3. They also will not be supported until they are qualified. Check the compatibility matrix on the Nutanix portal to see if the Update is supported. Patches. There are many ways that VMware calls its patches, examples are: ESXi 6.7 EP 15, ESXi 6.7 P01, ES

Hi guys. We are in the process of acquiring Nutanix products, but we need to know something crucial. We currently have more than 100 ESXi hosts, separated in 2 sites. We have a metro cluster, all the datastores are sync, this is full active active, with EMC VMAX All Flash and VPLEX. As of today (May 2020), can we do such thing with AHV and ADSF? It is supported? I’ve seen the Sync DR here: https://cloudvm.es/nutanix-ahv-synchronous-replication, where i can see you can do it VM by VM. But what about if i want to protect at datastore/container level? All of the VMs. We have more than 3000 VMs. We need to know if we can accomplish the same with Nutanix. Stretched storage and VMs on both sides, for obvious reasons (balance, availability). If one of the sites crashed, HA all the VMs automatically to the other. Is there a video or pdf showing how it works? Thank you!!

Have you always wanted to get a peek into the network traffic flowing in and out of your Nutanix infrastructure? Whether you got your first IT job for years or been a veteran for several years, you would have definitely at some point been keen to get a detailed look at your network traffic.    At Nutanix, the AHV hypervisor is based on the open-source KVM module and uses the CentOS Linux distribution. And yes, it comes with the popular packet capture utility tcpdump.   A few examples when you would want to use tcpdump in your Nutanix infrastructure would be: VM(s) lose network connectivity on a particular host A host has multiple network links and you wish to identify which is active VM(s) are not reachable from an external network In that particularly annoying issue, the switch vendor asks you to contact Nutanix support   The good news is that tcpdump is installed by default in AHV hosts and it can be run to inspect traffic on physical NIC’s as well as VM inte

Hi, New to the forum, we recently had our Nutanix servers delivered and we are planning to do the install in the coming weeks. We haven’t decided which hypervisor to go with yet its either going to be Hyper-V or AHV. I just wanted to know peoples experiences that they have had? We currently use Hyper-V, so we are comfortable with that but all the nice features seems to be heading to AHV/Prism. I would be grateful for your thoughts and comments Thank you

Anyone have any insights to share about using the filter option in the /alerts/list API method in Prism Central? Here is that method in the documentation: https://www.nutanix.dev/reference/prism_central/v3/api/alerts/postalertslist/ It looks like there isn’t much information available about the filter option. I have found a (very) little bit of information online about FIQL, but I have no idea what field names are available for alerts in Prism Central.

I have a problem with OS and Distributed Switches on vCenter. When I migrate the vm-network from standard switch to distributed switch show the next error: Detailed information for cvm_startup_dependency_check:Node x.x.x.x: FAIL: .dvsData directory is not persistent yetRefer to KB 2050 (http://portal.nutanix.com/kb/2050) for details on cvm_startup_dependency_check################################################################################PLUGIN RESULTS################################################################################/health_checks/hypervisor_checks/cvm_startup_dependency_check    [ FAIL ] I can see that when reboot the ESXi host and start the CVM I lost it network config on the CVM, and I have to assign again network adapter on the CVM. I don't know how configure on the vcenter the distributed switch to make persistent.

I hope this is an easy question.  Am I allowed to increase the VCPU and memory resources on the Move VM/Docker without issues?  I know hot-plug is disabled, so it’s in the reboot-world.  I found that we are pegging the CPUs out when we are queueing migrations, so I want to try to get some more throughput on it to take advantage of our 25Gb infrastructure. Thanks

My migration team is doing a good job trying to push as many VM’s through Move to stage reboots after-hours.  I’ve noticed that replication slows way down when we have about 15-20 VM’s waiting for cutover.  I have checked the load on the Move VM and increased the amount of CPUs.  Replication goes well (25Gbit network), but now we only have 2 seed streams going with 19 waiting to cutover.  I have 4 other VM’s that are in the “seeding data” phase, but haven’t started their copies.  Is this a bottleneck within the Move postgres database? Any ideas on how I can get more VM’s copying in parallel? Thanks,

Is there a way I can inject a NIC driver into the Phoenix.iso?  We use a Broadcom 10Gb and the firmware file is not present on the Phoenix.iso so it can’t load the nic’s.

Hello community, I am facing a situation with some VMs, where the SSR-part of the Nutanis Guest Tools is causing some trouble. I have two VMs and created a Protection Domain for this to be able to play around with snap restore. One VM is working perfectly, the other VM displays: “Error executing command: Failed to query snapshot due to Nutanix Data Protection service error, error detail: Failed to fetch file information for VM with ID ****** due to hyperint error 1” This message appears as soon as I start the SSR tool or via ngtcli. Both VMs are set up the same way with IP from the same subnet. Can anyone push me in the right direction to have a look for an answer on this? Cheers Dirk

The Nutanix REST API allows administrators to create and run scripts on their Nutanix clusters. On a Nutanix cluster: API v1 and v2 runs through the Prism service. API v3 runs through Aplos services. Both of the above are services running on a CVM/PC-VM in a Nutanix cluster. Prism: Prism is the management gateway for component and administrators to configure and monitor the Nutanix cluster. This includes Ncli, the HTML5 UI, and REST API. Prism runs on every node in the cluster and uses an elected leader like all components in the cluster. All v1 and v2 API calls runs through Prism. Aplos: It’s an intentful orchestration engine + intentful API proxy.  All v3 REST API calls runs through Aplos. Looking at the logs of the above 2 services can tell us a lot of things about our REST API and HTTP issues on PC-VM/CVM. The logs for these services are located on a CVM/PC-VM at: API v3 logs: ~/data/logs/aplos.out API v1 and v2 logs: ~/data/logs/prism_gateway.log HTTP defines a set of reque

Hello Team, Do we have script which we can run to get the cluster details from Prism Central. Like Total CPU and usage CPU ,Total Memory and usage memory and same for storage, and also want to schedule that report in email. Please help me with script to get the details

We are using Image configuration to upload and convert the VHDXs and so far it works except when we attempt to upload 4K sector aligned VHDXs from an old HyperV cluster, the upload completes successfully but the conversion fails. Is it possible to migrate and convert 4K sector  aligned VHDXs to a Nutanix AHV cluster? Error: