How It works

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.

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.

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 se

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:    

I am testing Postman for API calls and one of the errors I am getting is 502 - Oops Server Error, which is related to the Apache portion. Question is, which log contains this? I’ve checked all the logs in ~/data/logs/ and can’t find that response. 

Below are new knowledge base articles published on the week of June 14-20, 2020. KB 8507 - Cosmetic high latency spikes may be observed in Prism at time of low IOPS on a cluster KB 8932 - NCC Health Check: pc_vm_resource_resize_check KB 9423 - Beam Cost Governance for Nutanix On-Prem stops reporting cost analytics post Cluster upgrade to AOS 5.15 KB 9488 - AHV | CentOS/RHEL 6.8 may hang durin the boot when tboot package is used KB 9496 - Pr

Hi, A customer moved his Nutanix Cluster (with Hyper-V) from a DC to another, after powering the Nodes up, the IPs of all Hyper-V host and CMs released, I logged it locally to Hyper-V hosts and configure the internal IP (192.168.5.1/28) and the external IP same like before shutting the cluster down. I repeated the previous step with CVMs, I went through cd/etc/sysconfigs/ and edit network-scripts file and added the the external IP in the eth0 and the internal one (192.168.5.2/28) in eth1. Now Hyper-V FC is working fine but cannot start VMs due to the Nutanix cluster issue, whenever I tried to start cluster from any CVM, I get this message “WARNING genesis_utils.py:1211 Failed to reach a node where Genesis is up. Retrying” Is there any way to fix this issue or to repair cluster configuration without disrupting existing data? Thanks in advance

Ques- There is 5 node cluster with 200 TB raw disk data, administrator want to enable eraser coding to obtain more space. What will we the usable space after enable eraser coding Options – 100, 125, 150, 175 TB ? Please share the calculation formula ?   Ques2 - Administrator want to perform DR test after 6 months, which snapshot he should use? Option – latest snapshot, oldest one  

Is it possible for a single bridge can have multiple bonds? in which usecase it will be applicable? -Jai

Below are new knowledge base articles published on the week of June 7-13, 2020. KB 9456 - Alert - A400114 - PolicyEngineServiceDown KB 9468 - Different Docker hosts can see volumes created with Nutanix DVP KB 9478 - How to clear stuck LCM inventory tasks ? KB 9480 - Windows 10, version 2004 or Windows Server, version 2004 VMs may fail to boot on AHV KB 9487 - AHV | VM update operations initiated from Prism Central may fail with "Entity CAS

Hi all, A newbie question. It seems I still have an old crash dump directory on one of my AHV hosts. A ls -lahtr /var/crash shows the single directory from back in April. At the time the issue was resolved, and the faulty DIMM that was causing the issue was replaced. That said, clearly the dump file was not removed. In terms of cleaning this up, is it OK to delete the dump directory within the /var/crash directory and then rerun the ncc health check. Or is there a better method for clearing crash dumps from Nutanix clusters. Many thanks, Rob

Please answer the below questions : When one cvm goes down(in a 10 node cluster with RF3) for 20 mints, then Guest VM’s new write and read IO would be served by anther's CVM and all these will be traveling across 10 g network. A : Will those new IOs served from local copy via another CVM or IOs will be served from the replica copy B: Will cluster starts to build a new replica to accommodate the missing copy or RF3   Ques 2 - When new Write IO request comes, first it will write the data on Oplog then synchronously send to other CVM’s Oplog. All host in clusters having 2 SSD and 6 HDDs. Will Write IO process by both SSD in every host or only one SSD is hsving Oplog partition active at the same time ?  I think there is only one oplog per CVM/host whether the host is aving all flash drive or 2 SSD and remaining HDD. But I am not sure about this statement, Please clarify..

Is it possible to recover data from an overwritten entity - does the overwritten VM or its storage still exist anywhere? I'm asking as I recovered a VM from a backup but realised in hindsight that the logs from the VM in its failed state would be useful for diagnosing the issue. Thanks in advance. 

What is the DIMM error?   A memory error is an event that leads to the logical state of one or multiple bits being read differently from how they were last written. For example, If 1 was written in a memory cell and while reading the same memory cell, it returns 0.    Memory errors can be classified into two types:   Soft errors, which randomly corrupt bits but do not leave physical damage. Soft errors are transient in nature and are not repeatable. Soft errors can be because of electrical or magnetic interference (e.g. due to cosmic rays, alpha particles, leakage, random noise).   Hard errors

First, let us understand what NTP (Network time protocol) is. An NTP server is a time server that is used to keep/sync the time in your cluster. An NTP server can be public or private depending on the strictness of your environment.   To know how to configure NTP in your Nutanix cluster, take a look at- https://support-portal.nutanix.com/#/page/docs/details?targetId=Web-Console-Guide-Prism-v5_16:wc-system-ntp-servers-wc-t.html   After the NTP server is configured, the genesis leader becomes the NTP leader,

Hello, I’m working with Rest API, to “automate” some operations with Ansible, trought URI Module and Jinja2. I need to create a Project, and set permission to a specific user. How can i do this with API V3? I can add user to a Project, but i can’t set the Role.. When i check trought the Web Interface, i see the user without role. Thanks!

Below are new knowledge base articles published on the week of May 31-June 6, 2020. KB 9442 - LCM BIOS/BMC Upgrade fails when node does not respond to IPMI power reset KB 9460 - Move: ESXi-AHV migration connection limits KB 9463 - Pre-upgrade check: Hypervisor Upgrade (test_host_upgrade_versions_compatible) KB 9467 - How to enable Karbonctl in Karbon darksite environment Note: You may need to log in to the Support Portal to view some of these ar

Hello. I faced with limitation of number VMs in API reply. There is option “length” which can be added to request, but max value is 500 (I got it into experiments). We have around 1000 VMs in our environment. Is there solution?

I have a W2k19 VM I created as a patched image. Idea is to patch it monthly. Shut it down and clone it. Then sysprep the clone and copy the disk to the Image Service. Then I can create VM’s off of it. I will repeat the colne after patching the ~master image monthly in order to keep a patched disk ready to spin up VM’s from. We are using AHV, version 5.10. Mt question is the “CLONE” a full, independant copy of the VM ? TIA -S

Hi community, I’m fairly new to interacting with Nutanix for automation and was hoping my VM build task would be a simple process but I’ve hit a wall with the guest tools install. I’m building a RDS environment where I need as little human interaction as I can get to make administration easier so I’m building my host VM using SCCM. I’ve multiple good reasons for approach but its mainly in support for application deployment via happening at build time. I’ve tried to install the guest tools manually but I believe they are failing due to the files being copied from a mounted ISO which has some dynamically created certificates involved so this isn’t going to work. I can see the ISO can be mounted using the API calls but every reference I’ve seen looks to need  a username/password passing in the script and I’m not overly keen in hard coding creds into script. Most of what i’ve seen is a few years old so I wondered if there has been any changes to the approach to mounting

Below are the top knowledge base articles for the month of May 2020. KB 7503 - G6, G7 platforms - DIMM Error handling and replacement policy KB 4116 - Alert - A1187, A1188 - ECCErrorsLast1Day, ECCErrorsLast10Days KB 1540 - What to do when /home partition or /home/nutanix directory is full KB 7604 - Disk space usage for root on Controller VM has exceeded 80% KB 4141 - Alert - A1046 - PowerSupplyDown

Below are new knowledge base articles published on the week of May 24-30, 2020. KB 9390 - Alert - A130338 - ServiceBadScore KB 9431 - LCM operation on ESXi hosts fails with "LAG is configured with X uplinks however there are Y NICs added in the teaming policy" Note: You may need to log in to the Support Portal to view some of these articles.

Giving thought to change your replication factor from 2 to 3? What are the impacts and things to consider?   First, let’s take a look at what replication factor is. Redundancy factor is a configurable option that allows a Nutanix cluster to withstand the failure of nodes or drives in different blocks.   By default, Nutanix clusters have redundancy factor 2, which means they can tolerate the failure of a single node or drive.  So RF3 means cluster can tolerate the failure of 2 nodes or drive… Basic Maths isn’t it?   Redundancy factor 3 has the following requireme

Below are new knowledge base articles published on the week of May 17-23, 2020. KB 4781 - A Windows 7 or Windows 10 User VM Fails to Power On with an NVIDIA vGPU Profile in ESXi 6.5b KB 9218 - Prism Element alternative UPN login fails KB 9357 - Oops - Server error when updating Container settings in Prism KB 9373 - AHV | 10Gbps NIC shows as 1Gbps despite auto negotiation enabled on Intel X550 NIC cards KB 9394 - Objects - Deployment might f