Deployment Success

Nutanix X-Ray is a free way to evaluate a variety of hyperconvergence scenarios. Compare configs and automate testing. X-ray your infrastructure and see if HCI is right for you.Move beyond peak-performance benchmarking to make informed decisions on hyperconverged infrastructure (HCI) evaluations. X-Ray is an automated testing framework and benchmarking solution that offers comprehensive 360° assessments of major hyperconverged infrastructure solutions. 

This was a blog by Josh Odgers posted on March 5, 2021For a while now I’ve been working on building new X-ray scenarios for both internal engineering/QA and for customers to quickly/easily and repeatably test more granular functionality of Nutanix.The HCI Platform Availability, Resiliency and Integrity series covers how the test functions on both Nutanix AOS and VMware vSAN and highlights that AOS has a major advantage over vSAN as it always maintains data integrity (both Availability and Integrity) even during failures on the minimum 3 node configurations.vSAN on the other hand suffers I/O errors even with much higher I/O timeouts, larger clusters and even with 3 copies of data (FTT2).But don’t take my word for it, you can now run the tests yourself.Read the complete blog: HCI Platform Availability, Resiliency & Integrity X-Ray Scenario is now GA!

X-Ray 3.10.2 is an automated testing framework and benchmarking application for enterprise-grade data centers.X-Ray is packaged as a VM and uses realistic workloads paired with real-world test scenarios to simulate various workflows and events that typically occur during datacenter HCI life-cycles.New FeaturesData locality scenario: X-Ray 3.10.2 adds a scenario to test resiliency during unplanned system events.Resolved IssuesCurie variables not available on vSAN: Fixed an issue where scenarios did not correctly process CURIE_HCI variables on vSAN targets. IPMI discovery failing: Fixed an issue where X-Ray discovery failed when you added a target with the IPMI configuration set to None. Cannot add AWS cluster as a target: Fixed an issue where adding an AWS cluster as an X-Ray target failed with a Something went wrong error.Download the latest version of X-Ray and read the release notes. Add your comments in this forum and let us know how your are using X-Ray.

Below are new knowledge base articles published on the week of March 28-April 3, 2021.KB 8378 - NCC Health Check: Check Interface Configuration Files KB 10075 - NCC Health Check: ngt_client_cert_expiry_check KB 10743 - NCC Health Check: pulse_enablement_checks KB 10966 - Using storage_container_reference functionality with Nutanix provider for Terraform fails with error "SPEC_INCOMPATIBLE_ERROR" or "INVALID_REQUEST" KB 10980 - Hyper-V VM created in Windows Server 2008 R2 or older may fail to be migrated by Move KB 10998 - NCC ipmi_checksf fail after upgrading ESXi to version 7.0 KB 11018 - LCM-driven AHV upgrade may fail due to missing /bin/bash binary KB 11026 - Fujitsu hardware platform BIOS power setting preventing NVIDIA AHV vGPU driver loading KB 11031 - Agentless Management Service (AMS) version 11.4.0 filling up /tmp on HPE ESXi hostsNote: You may need to log in to the Support Portal to view some of these articles.

What is FLR? What’s the purpose of the /flr endpoint? 

Trying to save Nutanix Bible to read as e-book offline. Can’t print page to PDF as most of grafics can’t save

Hello guys,Is it possible to extend ACI VxLAN to Nutanix AHV OVS (using Opflex agent maybe), in other words can we integrate it to ACI ?

I can ping to AHV from my pc. I can ping to CVM from AHV via address 172.x.x.x  and internal address 192.x.x.x But I Can Ping To CVM From My PC.

Want to know the maximum number of VLAN(802.1q) interfaces than can be created on each bridge of AHV. I cannot find any documentation or matrix about this. Thank you.

Hello, I have problem with the host reachability it goes out of cluster... When access it through the console I see the nics are up and enabled, however I can't ssh into CVM it's say not route to host eventhough it's running

I ma a dark-site NX-3060-G7 cluster. I need to know who is the manufacturer of the firmware for this machine so I can update the LCM firmware. 

Hi everybody,We’re doing a slight restructure in our DC and in thus need to change the default gateway used by a Nutanix cluster (3-node cluster).I’m aware of the following guide:https://portal.nutanix.com/page/documents/details?targetId=Advanced_Admin-Acr_v4_6:ip__ip_reconfig_web_c.htmlBut isn’t it at all possible to change something as simple as just the Default Gateway without such an invasive procedure requiring downtime?The part of the article on how to do it manually is...Non-existent:https://portal.nutanix.com/page/documents/details?targetId=Advanced_Admin-Acr_v4_6:ip__cvm_ip_address_reconfigure_t.html

Recycle bin feature is available from AOS 5.18 onwards. With help from Nutanix Support, the recycle bin tool helps you to restore deleted storage entities (guest VMs and volume group vDisks) and manage the recycle bin itself.After you delete a guest VM, the configuration file and disk remain in the recycle bin for up to 24 hours. After 24 hours, these files are deleted. The files are deleted in less than 24 hours if your cluster is unable to maintain sufficient free disk space.Recycle Bin Limitations and Guidelines The recycle bin stores vDisk and configuration data for up to 24 hours. After 24 hours, these files are deleted. The files are deleted in less than 24 hours if your cluster is unable to maintain sufficient free disk space. Recycle bin is not supported on storage containers where metro availability is enabled. Recycle bin is not available for recovering protection domain snapshots. You can disable and enable the recycle bin or clear its contents. As a default, the recycle

What is better, 4x960GB SSDs per node or 2x1.9TB SSDs?We currently have 2x960GB SSDs and need to double the capacity. Cost aside, any benefits of one configuration over another?

Hi community, I have some Qlogic 10G/25G NIC cards in my cluster which as I understand are not “supported” however seem to be detected correctly to some extent. Manage_ovs show-interfaces displays the output below which leads me to belive that the driver is loaded. However, currently those ports are connected to a 10G switch and so the speed and the operational status are not correctly working. Is there a way to set these by hand?  manage_ovs show_interfaces    name  mode  link speedenp5s0f0 25000 False  Noneenp5s0f1 25000 False  None    eth0  1000 False  None    eth1  1000 False  None    eth2  1000 False  None    eth3  1000 False  None    eth4  1000 False  None    eth5  1000 False  None    eth6  1000 False  None    eth7  1000  True  1000 When I add those cards to a vritual bridge I get the error message below. manage_ovs --bridge_name br1 --bond_name bond1 --interfaces 25g update_uplinks2021-03-31 18:05:50,402Z WARNING manage_ovs:437 Interface enp5s0f1 does not have link state2021-03-

Hi folks,Can I convert HC node to CO node? if yes, how?

How do I check hot and cold data by virtual machine? I'm going to migrate the virtual machines of the existing nodes to the node that I'm going to buy new ones. So, I'd like to check the hot and cold data of the virtual machines, respectively.

Below are the top knowledge base articles for the month of March 2021.KB 7503 - NX Hardware [Memory] – G6, G7 platforms - DIMM Error handling and replacement policy KB 4141 - Alert - A1046 - PowerSupplyDown KB 1540 - What to do when /home partition or /home/nutanix directory on a Controller VM is full KB 1113 - HDD/SSD Troubleshooting KB 4409 - LCM: (Life Cycle Manager) Troubleshooting Guide KB 9937 - Alert ID 111066 - Failed to send alert emails KB 4158 - Alert - A1104 - PhysicalDiskBad KB 6945 - How Upgrades Work at Nutanix KB 2090 - AHV host networking KB 2473 - NCC Health Check: cvm_memory_usage_check KB 3784 - Alert - A1030 - StargateTemporarilyDown KB 4519 - NCC Health Check: check_ntp KB 5582 - NCC Health Check: idf_db_to_db_sync_heartbeat_status_check KB 3741 - Nutanix Guest Tools Troubleshooting Guide KB 1863 - NCC Health Check: sufficient_disk_space_check KB 7386 - NCC Health Check: power_supply_check KB 6153 - NCC Health Check: default_password_check and pc_default_password_

Good morning All   I have a bit of an NGT issue, the Prism Central alerts me to say some VMs need a NGT upgrade, when I go to upgrade them I see the message “NGT can only be upgraded on 0/1 VMs which have the available upgrade of NGT”   Review and confirm buttons are greyed out so I cannot continue - what does the message mean and what do I do to get it to work?   Many thanks   Eric

We have 3 nodes with 2x960GB SSD and 4x4TB HDD.We need to expand storage (and storage only as it is going to be used to store cold data - we do not need additional processing power or RAM)Question 1: We simply added two 12TB HDDs to each node. Now each node has 2x960GB SSD, 4x4TB HDDs, 2x12TB HDDs. Everything is working fine, but we were told that this is not recommended. What is the problem with this configurationQuestion 2: Assuming the configuration in Q1 is not recommended and we want to end up with each node having one type of HDDs. We were told that we can upgrade the existing 4TB HDDs with 12TB drives. What the right procedure would be:  a) Mark one 4TB drive for removal, remove it, insert 12TB drive in place of removed 4TB drive. Repeat 4 times for a node. Resulting configuration - 6x12TB HDDs per node  b) Add two more 12TB drives first, then mark for removal and remove four 4TB drives (one by one). Resulting configuration - 4x12TB HDDs per node (preferred configuration by us)T

Looking at the site below, I understand that ESXi 7.0 is supported. But I'm not sure if vCenter 7.0 is supported.https://portal.nutanix.com/page/documents/compatibility-matrixIs it a problem to use vCenter 7.0 ?Also, where can I find out which vCenter versions are supported?

I am trying to move a VM from EXSI to AHV. When I try the move I get the error “VMTools is not running.” any suggestions?

Hardware failures are a part of any datacenter lifecycle. The Nutanix architecture was designed with this inevitability in mind. A cluster can tolerate one or two failures (depending on the replication factor of the cluster or container) of a variety of hardware components while still running guest VMs and responding to commands through the management console. Many of these failures also trigger an alert through that same management console in order to give the administrator a chance to respond to the situation.Nutanix provides the ability to tolerate rack failures for extended data availability, in addition to drive, node, block, and network link failure.Block fault tolerance lets a Nutanix cluster make redundant copies of data and metadata and place the copies on nodes in different blocks.A block is a rack-mountable enclosure that contains one to four Nutanix nodes. All nodes in a block share power supplies, front control panels (ears), backplane, and fans.Nutanix offers block fault

Failures are part of everything and Nutanix Clusters is not immune to it. But how we plan for failures determines the versatility of the product or a person for that matter!!Nutanix categorizes the type of failures into availability domains essentially based on type of failure. Nutanix provides the ability to tolerate rack failure for extended data availability, in addition to drive, node, block and network link failure. Node FailureA Nutanix Node comprises Physical host and a controller VM. Both these components can fail without any impact to the Nutanix cluster.CVM failureWhen a CVM fails, an alert is generated in Prism and another CVM redirects the storage path on the related host to another CVM. Read and writes will occur over the 10GbE network until the CVM comes back online.It is business as usual for the end customer with maybe a slight performance decrease.Controller VM FailurePhysical Host failureIf a node fails, all HA-protected VMs can be automatically restarted on other nod

Hello, I tried to change the Prism admin password today, but the admin account keep locked automatically. So every time I have to reset the admin account from a CVM, but it gets locked after 5 minutes.