How It works

Below are new knowledge base articles published on the week of May 23-29, 2021.KB 11317 - License Feature Violations or Expired Licenses on Xi-Beam KB 11327 - Calm Blueprint output window block can only be minimized by clicking on the minimize button KB 11339 - X-Ray fails to run the Throughput Scalability test KB 11350 - Recieving "name in body should be at most 40 chars long" when creating a Karbon Cluster KB 11354 - Hit logs from Flow-enabled AHV cluster not forwarded to remote syslog due to regex issue KB 11363 - Lazan service restarts with "GenesisClientError: kRetry: Failed to check if upgrade is in progress, please retry" KB 11367 - Calm: App/VM deployment fails with ERROR - "The resource '<value>' is in use." KB 11395 - Windows VM running VirtIO 1.1.6 may crash with code IRQL_NOT_LESS_OR_EQUALNote: You may need to log in to the Support Portal to view some of these articles.

This is a continuation of the post that I wrote here: https://next.nutanix.com/topic/show?tid=33950&fid=31 Part of this was resolved however we are still running into an issue with some of our VMs in which they get stuck in this state: { "status": { "description": "2016 Template-4/17/19", "state": "ERROR", "execution_context": { "task_uuids": [ "8d0c2110-461b-4252-a223-11016ff8714b" ] }, "message_list": [ { "message": "Edit conflict: please retry change. Entity CAS version mismatch.", "reason": "CONCURRENT_REQUESTS_NOT_ALLOWED" } ]} The only way to clear it is to power the VM down and update the VM within the GUI.  However, upon trying to subsequently update the VM by API it results int the same error. Please advise.

Hi All, I am a beginner to Nutanix, just wanted to AHV / AOS! how its function.

Im trying to create a playbook that on X alert posts to teams channel…. is this possible? I have tried a few methods but not having much joy. Method: POST  URL: https://outlook.office.com/webhook/blahblahblahlongstring user: blank Pass: blank Request body: I have tried setting json and tried using the built in parameters Alert: Source Entity Name Alert: Alert Name Alert: Creation Time Alert: Severity   request headers: blank or Content-Type: application/json     so am i just missing something about the syntax? Or is the rest api call for nutanix api’s only?    Thanks in advance. 

Below are new knowledge base articles published on the week of May 16-22, 2021.KB 11189 - How to secure the bootloader with a user-defined password KB 11190 - RHEL STIG requirement for actions when audit storage is full KB 11191 - How to configure CVM to use nutanix user on AHV instead of root KB 11192 - How Envoy handles downstream service failures KB 11193 - New users are added to AHV: "nutanix" and "admin" KB 11252 - SSL Certificates and the Secure Gateway Appliance for Frame KB 11312 - AOS upgrade notification shows 5.20.x as Short Term Support (STS) release instead of Long Term Support (LTS) release KB 11321 - Calm VM image upload to vCenter7 fails with error "Unable to retrieve manifest or certificate file." KB 11333 - Adding Nutanix Objects as Secondary Storage with Veritas Enterprise Vault KB 11334 - AHV/ESXi Standalone Foundation deployment failure on HPE DX AMD platforms with Mellanox NIC CX4 or CX5 KB 11346 - Nutanix Files - Inode usage high on FSVM KB 11364 - CVE-2020-13946

AOS 5.20 delivers performance enhancements that build on the breakthroughs in AOS 5.19 and expands on built-in key management capabilities for keeping data encrypted and secure. AOS 5.20 also increases the portability of VMs running on the built-in hypervisor AHV, streamlines advanced management capabilities, and more. A complete list can be found in the Release Notes. Nutanix Insights:Available with all new AOS releases is Nutanix Insights. Most enterprise IT solutions rely on a reactive approach to system maintenance and issue resolution. For example, when a technical issue arises, vendor support teams typically capture detailed system data from the customer and recreate the issue in a separate environment—only then can the actual debugging begin. This approach consumes unnecessary time and resources and ultimately delays resolution. Nutanix simplifies and streamlines this process through two important support services: Nutanix Pulse and Nutanix Remote Diagnostics. When enabled, Puls

I just updated a cluster’s AOS and am now getting the warning:AHV version 20190916.360 is currently installed on host, while minimum compatible AHV version is 20190916.410But I cannot AHV without updating also AOS to 5.19.2 which would change my plan to STS (currently installed 5.15.5.1 LTS)So I have to ignore the warning and waiting for a compatible AOS LTS version, or should I change to 5.19.2 STS?

Which node type does not deploy a Nutanix Controller VM. A bit confused with documentations available some say “Compute only” and other say “All Flash”One more question A vDisk is read by multiple VMs. The cluster creates immutable copies of the vDisk. What are these vDisk copies called.

We noticed that recently in our test cluster all operations take very long to complete. This seems to be due to long lasting “cerberus” tasks being executed with a type “uncharge”. Does anyone know what “cerberus” is doing or how I could speed it up? Whenever we kill the cerberus tasks manually all other queued ‘non cerberus’ tasks start to execute.

Below are new knowledge base articles published on the week of May 9-15, 2021.KB 10162 - NCC Health Check: disk_power_check KB 10204 - NCC Health Check: esx_product_locker_setting_check KB 10414 - NCC Health Check: ahv_file_integrity_check KB 10420 - NCC Health Check: stale_recovery_points_check KB 10461 - NCC Health Check: aide_check KB 10524 - NCC Health Check: marker_files_check KB 10532 - NCC Health Check: recovery_plan_consistency_group_checks KB 10735 - NCC Health Check: rsyslog_forwarding_check KB 10811 - NCC Health Check: remote_log_forwarding_check KB 10864 - Alert - A130347 - ExternalDatasourceStorageMigrationSuspendedAlert KB 11141 - Secure Boot Causes Device Re-enumeration in Windows Guest VMs on AHV KB 11212 - Nutanix Move fails to prepare Windows Server 2008 R2 VM for migration from Azure KB 11266 - Cassandra fails to be active after one metadata SSD goes bad in a multi SSD node KB 11273 - Hyper-V 2019 upgrade - SKU option is missing in Upgrade Software page KB 11323 - Nu

HCI runs on ESXi hosts, and VMs are protected with Async Protection Domain. I wonder, how to find which host a recovered VM will be registered with? I guess, it’s a certain service “leader”? Also, can I change it?

Not sure why but there appears to be an absence of documentation pertaining to required ports that might need to be opened in a firewall to access the CVMs. Perhaps Nutanix thinks that organizations aren't going to firewall off the cluster to protect access from malicious users. If I'm wrong why don't I see a list of ports that are needed to access the CVMs rather than KB articles showing what outgoing ports are needed in a perimeter firewall? In order to properly protect a cluster the CVMs should sit behind a firewall, which in my architecture this will be the case before we go live with anything. In order for admins to access the CVMs through a firewall TCP 22 is needed for SSH, and 80 and 9440 are needed for accessing the web console. Is this is? or are there more ports that would need to be opened up for the various types of admin interactions? how about running cli tools against the cluster? how about downloading support files? and I'm sure I'm missing mor

I was trying to get AlienVault (OSSIM) to run on Nutanix, but I have hit a road block. I was able to get the install dialog to run after setting the boot to legacy bios. However, after install, It fails to boot.My questions, do any of you use any open source SIMS solution that works in Nutanix?I could accept a SIMS solution at a cost. However, after going through sales with LogRythim and splunk, I was frustrated because both of them incure log ingestion fees. We may have a good budget, but we are limited with our operational cost.Thanks for any assistance you can provide.

Why need volume_group_uuid when i create a new Volume Group???how to get the volume_group_uuid?

Hello Nutanix community. I have problem with upgrading my AHV version. I attached error screenshot. How can i solve this problem without any power off, reboot or other actions? Because it production environment. Thanks

Below are new knowledge base articles published on the week of May 2-8, 2021.KB 10315 - Unable to boot to Windows after P2V conversion to AHV KB 11030 - Node add fails with VMD-enabled nodes on AOS 5.19.1 or 5.19.1.5 KB 11040 - Alerts page in Prism displays entity type in Source Entity column instead of the name of the entity KB 11121 - "Host restore VM locality” task disappears in Prism if the VM migrations fail KB 11173 - Xi Frame - Cannot send email on port 25 in a Frame VDI session hosted in AWS KB 11204 - Metadata IO latency spikes intermittently after Nutanix Files upgrade to 3.8 KB 11215 - CVM fails to boot after UEFI firmware upgrade on Lenovo nodes KB 11218 - Memory hot-add to a UVM running on AHV is rounded up to the next GB KB 11228 - High metadata IOPS observed after Nutanix Files upgrade to 3.8 KB 11248 - LCM 2.4.1.1 fails with error "Foundation Api [reboot_to_phoenix] failed" after Foundation 5.0 upgrade KB 11256 - LCM: Lenovo SATADOM FW upgrades not showing in InventoryN

I would like to run a command from a host to gather the info just allssh does on cvms. I would like to avoid login into all the host and run a quick check from any of them. is there any easy way to do that?I read about hostssh command but my bash is not able to found it.

Below are new knowledge base articles published on the week of April 25-May 1, 2021.KB 10287  - NCC Health Check: esx_cvm_cpu_resource KB 10450  - LCM Troubleshooting: Dark site direct upload (no webserver) KB 10736  - NCC Health Check: check_node_ssh_keys KB 11058  - Creating or Updating an Existing MCS Catalog in Citrix Studio fails with "JavaScriptSerializer" error KB 11065  - "Unable to retrieve OVA information" error message in Prism Central when clicking 'Deploy' button KB 11066  - Resolving "A duplicate IP address detected for 192.168.5.1 on interface vmk1" error in ESXi vobd.log KB 11078  - Foundation fails to validate IPMI network KB 11107  - Configuring AOS for VMware Fault-Tolerance on ESXi 6.7 KB 11181  - Time range is not displayed when triggerring the report to run manually in Prism Central KB 11208  - Nutanix Move | Hyper-V Failover Cluster inventory returns no VMs for Move-4.0.0Note: 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 April 2021.KB 7503 - NX Hardware [Memory] – G6, G7 platforms - DIMM Error handling and replacement policy KB 4141 - Alert - A1046 - PowerSupplyDown KB 1540 - [AOS Only] What to do when /home partition or /home/nutanix directory on a Controller VM (CVM) is full KB 4409 - LCM: (Life Cycle Manager) Troubleshooting Guide KB 1113 - HDD or SSD disk troubleshooting KB 4158 - Alert - A1104 - PhysicalDiskBad KB 2090 - AHV host networking KB 2473 - NCC Health Check: cvm_memory_usage_check KB 4519 - NCC Health Check: check_ntp KB 6945 - How Upgrades Work at Nutanix KB 4872 - LCM: How to cancel an ongoing LCM update operation using the "Stop Update" feature KB 1863 - NCC Health Check: sufficient_disk_space_check KB 7386 - NCC Health Check: power_supply_check KB 9937 - Alert ID 111066 - Failed to send alert emails KB 9261 - NCC Health Check: dimm_size_reduction_check KB 10908 - CVM in Boot Loop After Reboot / Upgrade KB 3741 - Nutanix Guest

Below are new knowledge base articles published on the week of April 18-24, 2021.KB 8185 - NCC Health Check: bond_uplink_usability_check KB 9366 - Alert - A802001 - AncServiceUnresponsive KB 10089 - NCC Health Check: ovs_bond_config KB 10128 - NCC Health Check: node_schedulable_check KB 10389 - Alert - A801103 - L2StretchInvalidVpnVersion KB 10783 - Enabling IAMv2 with Prism Central (PC) version pc.2021.3 when upgrading from a previous version of PC with only CMSP enabled KB 11020 - Cloning or storage VMotion operations to different destination hosts cause long stun times KB 11080 - Prism Central - Role Assignment is not visible for an existing role KB 11086 - Failed to Perfom Inventory with LCM 2.4.1 for XC Series due to parsing error of /bin/python /opt/dell/DellPTAgent/tools/pta_cfg get rest_ip. KB 11115 - Nutanix Files - Cerebro to Smart DR Migration KB 11138 - Nutanix Files - Potential loss of connectivity to FSVM Remote Console Login and SSH KB 11157 - Foundation 5.0 - Lenovo/Fuj

Can someone explain the difference between the two ?? and what are the pros and cons of them

Hi i need to download AOS 5.10.0.1 LTS

it used to take considerable effort to deploy nutanix in qemu/kvm lab, previously i had to modify install script to bypass bs hdd/ssd performance tests, etcrecently i had to test something and needed to deploy ahv,  i noticed installation iso and i thought, hey, i don’t think it was there before, probably nutanix is going in the right direction by simplifying things and now i get “an error occurred while trying to  illuminate the chassis led” and index out of range related to boot disk with that iso, loli guess i will have to dig into these install scripts againplease invest time in testing virtual deployments, and please follow KISS principleoff-topic: you have a category here in forums called “Deployment Success”, please create “Deployment Failure”, so that i and many others could properly place these threads

I have AHV nodes which have been disconnected on network, I am looking for a method to delete the data on each node through console locally. I have found a command but not sure if this will remove disk or wipe the data? Can someone please guide?Command: ncli> disk delete id="id" [force="force" ]running AOS 5.15.3

Hello Team,Please help me on the below issue. in our cluster one node is not up and runnig is’s below error for the same.