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Hello, guys Please, help me with these two points: I’m searching for the spec int value that the sizer uses. For example, I see that a default processor is E5 2680v2, 42.31 specInt. But I searched on the website of Spec.org and I couldn’t find that and the other serverals values that use Nutanix sizer, as is shown in the picture. Maybe I search on the incorrect section of Spec.org, 2006? 2017? Please help.   I was wondering if the applied weight value is published in any website of Intel. I figured out that it is a fix value: 7.3 per processor for Xeon Gold 6244, for example. I wrote down the applied weights for 3,4,5 and 6-node configuration (dual-processor) and the calculations works this way: Applied wieight in 3-node cluster: 43.8 (7.3x6) Applied wieight in 4-node cluster: 54.8(7.3x8) Applied wieight in 5-node cluster: 72.99(7.3x10) Applied wieight in 6-node cluster: 87.59(7.3x12)   So I would like to know if these values (7.3 and others) are associated to the processor its

Hi everyone, I’m trying to clone a vm with a cloud-init customization but i don’t know how to put the cloud-init in the userdata string. Thanks for you help

Below are new knowledge base articles published on the week of July 12-18, 2020. KB 9419 - Pre-Upgrade check: test_xenserver_eol KB 9539 - How to clear BIOS password KB 9588 - LCM: Firewall rules for connected site KB 9649 - After Scale-Out, pcvm_same_disk_size_check reports "Disk sizes of Cassandra partitions are not the same on Prism Central VM" KB 9670 - LCM: Inventory on Prism Central fails if any of the PE registered has LCM issues. KB 9673 - AHV | Putting host into maintenance mode may fail with "Unable to map backing store for guest RAM: Cannot allocate memory" error KB 9692 - Reclaim space from unused protection domain with referenced snapshot KB 9710 - LCM: Failed to update entity after inventory Note: You may need to log in to the Support Portal to view some of these articles.

Disk structure of a CVMThe CVM is the core of the AOS clusters, but have ever wondered how disk layout exists within them?I provide a brief overview of its structure in the following post.The main thing that most of you are familiar with already, is that the LSI controller is passed directly to the CVM in order for it to have direct access to the disks in the node. When combining all the disks space from all the CVMs within the cluster it provides the unified software define storage pool used to store your data.That’s why when you run “df -h” in the CVMs you will see the data disks mounted in the following mount point:/home/nutanix/data/stargate-storage/disks/<disk serial_number>However, the CVM also needs to have space for itself in order work, so a portion of SSDs and HHD is reserved for that purpose.In single SSDs system you will get the following partition layout:   sda1: ‘/ ‘ root partition sda2: standby root partition used for upgrades  sda3: /home partition

Acropolis Operating System upgrades happen across the cluster, one CVM at a time. Here is the next installation of the Upgrade Series as promised to provide you quick tips and tricks to plan and execute your upgrade activities with ease.   In simple words, AOS is the Operating System running on the Controller VMs(CVM) in the cluster and is critical in handling the data I/O from the user VMs in the cluster. AOS can be called the core of Nutanix Hyper-converged infrastructure.   As reference documents, you can check the below Guides: AOS Advanced Administration Guide Prism Web Console Guide Acropolis Upgrade Guide 2 Node Cluster Upgrade Reference Guide Note: The above listed documents are for the latest LTS release - 5.15.x (as of 17th July,2020). For version specific documents, navigate to the Documents Section in the Support Portal and check the Prism and AOS Guides by filtering the versions.   Note: AOS upgrades through One click method consists of a graceful reboot of the C

You must be familiar with some of the techniques you can use to migrate VM’s onto AHV from other hypervisors. These include our popular Move solution, if you wished to move away from ESXi or Hyper-V. Another way is to add the VM’s into a Protection Domain and migrate the PD itself. Of course, this is only compatible with Nutanix clusters being the source and destination cluster.   As much as we would not want you to, there could arise situations where you may need to transfer VM(s) back to a different hypervisor. Currently, Move does not apply to this use-case. The quickest way would be to set up a Protection Domain as described above. However, this is complicated if the VM’s are already being protected and replicated onto other clusters. You would not wish to remove them and affect the processes in place.   What do you do then?   This document should assist you in the process. On a high level, it includes  Powering off the VM Using the qemu utility to convert the vdisk 

We would like to hear about your automation preferences and features that you would like to see. This uber brief (3 questions) survey asks about things that are important for you when automating routine tasks as well as big projects. We are eager to hear from you! Nutanix Automation Survey

Dear Sir/ Madam, I am working on a further Nutanix project and I have installed 8 x NX8155 servers. Each server has 6 x 10g TwinX cables and 2 x CAT6 copper connections. I am again trying to find any suitable cable manager due to the amount of physical cabling for each device. Can someone please advise if there are any cable managers that Nutanix is aware of or via a third party as I am struggling to locate any. Thanks in advance. Simon.

Looking for get-ntnxvm -SearchAttributeList syntax. Since the get-help doesn’t provide any information besides:  “Search attribute list, only searches on few attributes. For accurate search, provide field names” Can someone provide an example of how to use this parameter? Most examples seem to use -searchstring.  I would like to search for vmname.  I know I can use a where clause and filter that way but curious if -SearchAttributeList could also do it.

  I did a node remove operation, but it seems to be completed in the task, but there is no log. Can I know where the task log is recorded in cvm?

We often ask ourselves, what do these various Upgrades entail and what actually happens during an upgrade. Here is a high-level description of what happens during the various Nutanix core software upgrade processes. I have assumed it is a minimum 3-node cluster and you have already determined the Upgrade version.  Note for all the Upgrade below, it is important to perform health checks before upgrading any component (check KB 2852).   1. NCC: When : If health checks show no issues,  the NCC upgrade can proceed. It is recommended to upgrade to the latest NCC version shown.  How : The upgrade process copies NCC software to each Controller VM or Prism Central VM. What Happens : The cluster_health service, which is responsible for health monitoring and the logic underlying cluster alerts, restarts on each node.  Caution Level :  No services involved in the data path restart hence it is non-intrusive.  NCC version does not depend on any other Nutanix component and can be upgraded re

AHV uses Open vSwitch (OVS) to connect the CVM, the hypervisor, and guest VMs to each other and to the physical network.    Open vSwitch: OVS is an open source software switch implemented in the Linux kernel and designed to work in a multiserver virtualization environment. By default, OVS behaves like a layer-2 learning switch that maintains a MAC address table.  Bridges Bridges act as virtual switches to manage network traffic between physical and virtual network interfaces. The default AHV configuration includes an OVS bridge called br0 and a native Linux bridge called virbr0 Ports Ports are logical constructs created in a bridge that represent connectivity to the virtual switch BondsBonded ports aggregate the physical interfaces on the AHV host. By default, a bond named br0-up is created in bridge br0   VLANs for AHV Hosts and CVMs     The recommended VLAN configuration is to place the CVM and AHV in the default “untagged” (or native) VLAN, as shown belo

All services are Up and running. Other CVMs can ping PCVM. Firefox browser loads with Error Message "Secure Connection Failed" and the Code "PR_END_OF_FILE_ERROR".     Solution Try one of the 2 methods to resolve this: 1)Try to make new profile via `about:profiles` and set it to default. If it is working, export your bookmarks from the old profile and import them to the new profile. 2) Simply restart the existing profile.       Solution reference from community Mozilla support:https://support.mozilla.org/en-US/questions/1267074

Acropolis Dynamic Scheduling (ADS) is responsible to examine the load on various components for hotspots and calculate what migrations can be done to balance the load without causing additional hotspots. Lazan is the dynamic scheduling service for AHV.   Lazan monitors the following resources:   Total CPU usage of each of the guest VMs. Storage controller (stargate) CPU usage per VM or iSCSI target.   Lazan does NOT monitor the following:   Memory. Apart from ensuring its migration tasks are within memory limits ( including HA), Lazan does not load balance based on memory usage. Networking.   Overview of how Lazan works: The Lazan manager gathers stats from the components it monitors. The Lazan solver (runner) checks the stats for potential anomalies and determines how to resolve them, if possible. The Lazan manager invokes the tasks (e.g. VM migrations) to resolve the situation.     When is a HOTSPOT detected by Lazan?   Lazan runs every 1

if the ipmi vlan option is disabled and i configured the switch side ports to a specific vlan, Will i be able to reach the ipmi if i connect my workstation to an interface in the switch with same vlan or do i need to enable the vlan option in nutanix and put the vlan tag as well.?

Hello I have a cluster with 3 nodes and AOS 5.10.10 and need upgrade to 5.15 but the nodes not have access to Internet. I upload the AOS 5.15 and show me in the Prism Console the versionm but not permit run the upgrade to new version. Need to know if is possible run the upgrade directly through cli to update the cluster. Thanks for your comments

Hi team, it’s a question about architecture : ROBO Site customer has two rooms (another one for the witness is possible) customers would like a node in each room  hypervisor : ESXi According to the docs, there's no reason not to do it ? is this architecture supported or not, and better is there somewhere a documentation about this design ? Many thank for your help.

You may get an alert from NCC stating that the deduplication fingerprinting has been disabled, but it is enabled on a container: WARN: Fingerprinting is disabled by stargate, but configured on Storage Container(s) As we know, Stargate is the service that is managing storage on a Nutanix cluster, so Stargate has some conditions on which it will automatically disable deduplication. If the metadata usage is higher than 250Gb on a node. If the metadata usage is higher than 50% of the total metadata space on a node. The second condition is common on small size clusters, for example NX-1000 series, with single-SSD nodes if the SSD size is small. The metadata is located on the SSDs and the total metadata size on the node is equal to the capacity of: One SSD in single-SSD nodes Two SSDs in double-SSD nodes Four SSDs in all-flash nodes So, for example, if you have a node with 1 SSD which is 480Gb in size, 50% of the metadata capacity will be 240Gb (in fact it will b

How long does LVM inventory take?  We have a 7 node cluster and it takes a very very long time to inventory.  There are 202 tasks.  It started an hour and 20 minutes ago and its only on task 63 out of 202.  Is this normal? We are running LCM 2.3.1.3.18618.

Below are new knowledge base articles published on the week of July 5-11, 2020. KB 8935 - NCC Health Check: recovery_point_limit_exceeding_check KB 9479 - Deprecation of manual multihoming CVM network configuration KB 9621 - Xi Leap - After failover on Xi, floating IP is not getting assigned to the VM KB 9626 - AHV | Common VM NIC management workflows KB 9628 - AHV | Windows VM running in UEFI mode with SATA disk may fail to boot after disk expansion KB 9632 - 3rd party backup restore jobs can fail having INTERNAL ERROR: ErrorCode: 4 in AOS 5.15.1 KB 9640 - AHV | Cluster memory usage graphs may show different numbers if "HA Reservation" option is enabled Note: You may need to log in to the Support Portal to view some of there articles.

Prism Central is a centralized management tool that runs as a separate instance comprised of either a single VM or a set of VMs. This multi-cluster view, allows you to monitor and manage multiple clusters through a single web console. If you would like to deploy a Prism Central instance, you can either follow the 1-Click method or the manual method.   Do you have a Prism Central(PC) instance deployed in your environment and are planning to upgrade it? Here is the second installation of the Upgrade Series as promised to provide you quick tips and tricks to plan and execute your upgrade activities with ease.   Prism Central Guide for the latest version (as of 10th of July, 2020) can be found here. To check for the release notes or Guide, navigate to Nutanix Support Portal > Menu>  Documentation > Prism and filter out the PC version from the top right section of the dropdown.   Note: PC upgrades is necessarily just a reboot activity on the Prism Central Virtual Machine(s)

Starting from AOS 5.10.2 and newer, if you run the ‘cluster status’ command, you may see that there is a new service running on the cluster called Xtrim. That service was not present before 5.10.2: Xtrim is the service that is going to improve the performance of the cluster. If we look a bit deeper, it improves the write performance by periodically trimming the SSDs. In Nutanix all the disks are passed-through from the host to the CVM and the CVM is managing the disks, so the Xtrim service running on CVMs is doing the trimming of the physical SSDs.   So, what is trim?   TRIM is a command with the help of which the operating system can tell the solid state drive (SSD) which data blocks are no longer needed and can be deleted, or are marked as free for rewriting. In other words, TRIM is a command that helps the operating system know precisely where the data that you want to move or delete is stored. That way, the solid state drive can access only the blocks holding the data. Further

Hello community, Maybe one of you can assist me for a report of cluster usage. I need a report which gives me the usage of all VMs in a cluster. But I need this information for every VM separated. In the analysis page I can only create a chart for on VM and with over 600 VM this take a long time... I need for a time span of the last 3 month the following information of the VMs IOPS (min,max, avg) RAM (min,max,avg) CPU (min,max,avg) Is it possible with the analysis page or with an cli command ?

Quick tip for a hump day. Rushing in to check something quickly on the IMPI. Can’t be bothered with the Web interface. Jumping into a CVM CLI only to find out that the ipmitool isn’t working and the error isn’t helpful. Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directoryGet Device ID command failedUnable to open SDR for reading Good news is the IPMI is most likely fine. Chances are all you need to do is to use a few extra keys as part of the ipmitool command. Remember that for all calls executed from a CMV the ipmitool has to authenticate with the IPMI and the calls are traversing the network technically even if it is only a virtual switch. KB-1345 Using ipmitool on the CVM gives full command syntaxis and is rich with examples. For Dell hardware refer to KB-6007 [ipmi] Could not open device at /dev/ipmi0 on Dell hardware. If you are a proud owner of AHV host there is an extra option available for you which is to check the ipmitool service

Hi Team,I am trying to export cluster info with the below code which I got from the internet (do not remember where I got this). but the below script runs fine and able to export the data required except for Cluster name and its IP address.As per my understanding it is able to export only the content of “NTNXHost” but not the content of “NTNXClusterInfo” and “NTNXVM”$report = @()$NTNXHost = Get-NTNXHost | Select-Object name,hypervisorAddress,clusterUuid,serviceVMId,serviceVMExternalIP,ipmiAddress,serial,blockSerial,blockModel,blockModelName,cpuModel,numCpuCores,numCpuThreads,numCpuSockets,cpuFrequencyInHz,cpuCapacityInHz,memoryCapacityInBytes,hypervisorFullName,hypervisorType$report+=$NTNXHost$NTNXClusterInfo = Get-NTNXClusterInfo | Select-Object name,clusterExternalIPAddress$report+=$NTNXClusterInfo$report += "`r`n"$NTNXVM  = Get-NTNXVM -SearchString "VM is a Nutanix CVM" | ft vmname,ipAddresses$report+=$NTNXVM$report | Export-Csv -Path C:\temp\ClusterInfo.csv -NoTypeInformation -UseC