Installation & Configuration
This forum is the best way to get up and running with the Nutanix platform
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Hi,I have 4x r740 servers (sized for vmware vsan) can we install and configure fully functional nutanix based hci cluster for production environment on it?Server specs are given belowDual processorx 18core256gb ram10 g mellanox adaptor1g LOM2X 960GB MIX USE SSD8x 1.2TB 10K HDDALL servers are connected with 10G dell 5000 series switches via sfp modules and cisco 9200 lan gigabit switches
Ubuntu Cloud Images are pre-installed disk images that are customized by Ubuntu engineering to provide Ubuntu Certified Images, Openstack, LXD, and other features in public cloud environments.Due to the pre-built image and customization the OS requires specific virtual hardware such as a serial port that AHV does not include by default. When trying to boot a VM on AHV from any of the Ubuntu Cloud images, the boot process stalls after loading the Btrfs module as the hardware is not there.This can be helped by customizing the VM manually using a combination of Prism and aCLI commands or by leveraging API calls.Download Ubuntu cloud image in .img format Upload as Disk to Prism Image Services Create a new VM and attach the disk created in step 2 as Type: "Disk", Operation: "Clone from Image Service", Bus: "SCSI" and for Image select the name of the uploaded image and then click "Add" Select "Custom Script" at bottom of the window (AOS 5.10.6 and later) and in "Type Or Paste Script" paste t
As we moved the equipment and started the cluster, the cvm time was changed 1 day ahead. allssh '(/usr/bin/crontab -l &&echo "*/1 * * * * bash -lc /home/nutanix/serviceability/bin/fix_time_drift") | /usr/bin/crontab -' do this allsr/bin/crontab -' allsshrgrefs/'allssh grep offset ~/data/logs/gencesis.out================== 192.168.100.15 =================2020-11-26 11:53:19 INFO time_manager_utils.py:49 NTP offset: 32399.235 seconds2020-11-26 11:53:49 INFO time_manager_utils.py:49 NTP offset: 32399.235 seconds2020-11-26 21:14:50 INFO time_manager_utils.py:49 NTP offset: -118793.575 seconds2020-11-26 21:46:22 INFO time_manager_utils.py:49 NTP offset: -118793.583 seconds2020-11-26 21:56:52 INFO time_manager_utils.py:49 NTP offset: -118793.586 seconds2020-11-26 22:07:23 INFO time_manager_utils.py:49 NTP offset: -118793.590 seconds2020-11-26 22:17:54 INFO time_manager_utils.py:49 NTP offset: -118793.591 seconds2020-11-26 22:28:24 INFO time_manager_utils.py:49 NTP offset: -118793.594
When you open the console window after assigning the GPU to the vm as Passthrough and turning it on, "guest has not initialized the display" appears.When changing to uefi -> bios legacy, the console screen is displayed. What is the difference and is there a way to do it in uefi environment?
We are currently on vCenter 6.7U3j and looking on my possible upgrade path to vCenter 7 I need to go straight to 7 U1.https://kb.vmware.com/s/article/67077#vCenterServer6.7to7.0Should I wait for 7 U1 support or can I expect Prism/Nutanix and Nutanix Move to play nice with vCenter 7 U1?Looking at release notes for Nutanix Move I see only vCenter 7 for example.https://portal.nutanix.com/page/documents/details?targetId=Release-Notes-Nutanix-Move-v3_6_2:Release-Notes-Nutanix-Move-v3_6_2
Many users try to periodically execute the NCC health checks as a good offensive tactic against any issues that might appear within their cluster, which is a great idea! However, rather than writing that down as a reminder somewhere or simply trying to remember to do so, many do not realize that this task can be scheduled right from within Prism.The task can be configured to execute as per the following schedules: Every 4 hours Every Day Every Week When choosing the every day or week options, you are also presented options to configure the execution according to a specific time of the day and specific days of the week respectively.What happens with the results when the scheduled NCC checks are executed? An email is sent to the email recipients configured within the Alert Email Configuration settings of the cluster.For more information, including the specific procedures for configuring this feature, please refer to the Scheduling and Automatically Emailing NCC Results section of the
Hello All, currently i am working on this project that uses nutanix 4 nodes and commvault as a backup and recovery solution and also have tape disks for archiving, now i have already installed commvault commserv on nutanix as a virtual machine but the trouble i am having is how to configure the storage for commvault and how to integrate the tape library to the nutanix node so that commvault can access it and made archive to it. please any advice and best practice you know will be very help full i am new to this kind of configuration.
Hello All,I have successfully installed Prism Central and it has been working well. I have configured a “view” under the focus button in the vm’s menu; however, this setting will not stay once I log out and back in. Currently the process is once I log back in I need to click on focus and pick my view. Is there a way to make that my default view? Maybe tie the view to my user account? I have included and image below to help. Thanks,Scott
I have a setup with two subnets in the (same) native vLAN. The first subnet is (kind of) forced on me by Unifi (router, switch, APs in in the native vLAN) and I created the second subnet for Nutanix (recommendation ist only Nutanix devices/VMs in the same subnet). Now I need a router or routes configuration in the Nutanix subnet to get access to the other subnet and the internet. What do you suggest to achieve this in a simple way or what is the recommended way of doing that?
Hi All,Does anyone know the command ovs-appctl lacp/show br0-up it show:slave: eth3: current attached port_id: 2 port_priority: 65535 may_enable: true actor sys_id: 0c:c4:7a:1e:3e:6e actor sys_priority: 65534 actor port_id: 2 actor port_priority: 65535 actor key: 1 actor state: “activity timeout aggregation synchronized collecting distributing”I have set lact rate fast on both nexus switch and nutanix,but what it means “activity timeout aggregation synchronized collecting distributing”“activity timeout aggregation synchronized collecting distributing” Will it affect the quality of the network ? Thank you
One of my physical disks failed because it had a loose connection in the drive bay. Where do I reset a flag for the failed disk or something similar that Nutanix tries again with the same disk?(xpost: https://www.reddit.com/r/nutanix/comments/j4jl4f/how_to_reset_failed_disk/)
Hello, All.Good day!! I have an issue and need your help and advice. 1. using 10 nodes, but I want to configure 2 clusters with 5 nodes each. (Composed of RF3) 2. In a cluster consisting of 10 nodes, the removal of 5 nodes was successfully completed. 3. Then, cluster creation was done manually for 5 nodes that had been removed.cluster -s 188.8.131.52,184.108.40.206,220.127.116.11,18.104.22.168,22.214.171.124 --skip_discovery create --redundancy_factor=3 4. Errors that occur during cluster configuration work--- 126.96.36.199 (Down) to start: It seems that the part does not progress as it repeats Up and Down.Waiting on 188.8.131.52 (Up, ZeusLeader) to start: Medusa DynamicRingChanger Pithos Mantle Stargate InsightsDB InsightsDataTransfer Ergon Cerebro Chronos Curator Athena Prism CIM AlertManager Arithmos Catalog Acropolis Uhura SysStatCollector NutanixGuestTools MinervaCollector NutanixGuestTools MinervaCollector NutanixGuestTools MinervaCollector NutanixGuestTools MinervaC
Hi, I often get the error of: Warning : Disk space usage for /home on Controller VM... Does anyone have a definitive list of what needs to be deleted beyond the installation files? or a script that deletes the un-needed files? Surely it is something Nutanix should be building in to the system, I never have problems with VMware running out of installation space! Thanks Eric
Hi all!I’m looking for a HCL that details the exact firmware versions of specific components of a server to make sure that we are in the clear before we install or upgrade Nutanix.As far as I can tell there isn’t anyone to be found, at least not for someone who doesn’t have an account for the support portal (and I find it pretty odd to “hide” the HCL).I know there are HCL’s to be found outside of the support portal but those are extremely generic.Is there an HCL that is this detailed or is it only through trial and error we can figure out if we have the correct firmware?Thanks.
There are times when working with your environment that one of the Linux guest servers will go unresponsive. Nutanix Support may ask for crash dump files from the Linux VM to further analyze the cause.One such method is to use “sysrq”. This utility found on the Linux Guest OS allows access to several essential kernel commands and allow Nutanix Support to take a more holistic approach in trying to find a root cause.NOTE: If the VM is hung/inaccessible and "sysrq" has not already been activated, you may not be able to generate a core dump with the following method. You can configure the "sysrq" when VM is up and running and wait for the future occurrence.For more information on how to activate this feature, take a look at the KB 9066 on the Support Portal
HelloThank you always for your help.I'd like to update the Nutanix firmware and bios.I'm trying to use LCM.Finish configuring the LCM Darksite Web server.The update list does not appear after LCM registration. We used the latest dark site LCM and nx firmware bundle provided by Nutanix. lcm_dark_site_bundle_184.108.40.206.21375.tar.gzlcm_darksite_firmware_nx_1.6.0.tar What's the problem?
Hello everyone!I‘m running the CE on an SuperMicro Server. 1 SSD, 2 HDD 4TB. Everything was working like a charm.last week one HDD was taken offline due to smart…Hades.out quoted „Disk model HGST HDN724040AL not found in hcl.json. Running the default short test“After replacing the broken Harddrive and booting the Cum is not responding anymore.ssh email@example.com causes a „no route to host“any Ideas are welcome!Thanks Mike
I have a 3 node AHV cluster that uses 2x200GB SSD + 2x6GB HDD disks for each node. Would it be possible to add nodes to this cluster that uses 2x480GB SSD + 2x6GB HDD disks?Option is to first upgrade the 200GB SSD disks to 480GB to align all nodes to the same hardware. Maybe there is some gain in that?
Executive SummaryThis document makes recommendations for designing, optimizing, and scaling Microsoft SQL Server deployments on the Nutanix enterprise cloud. Historically, it has been a challenge to virtualize SQL Server because of the high cost of traditional virtualization stacks and the impact that a SAN-based architecture can have on performance. Businesses and their IT departments have constantly fought to balance cost, operational simplicity, and consistent predictable performance.Nutanix removes many of these challenges and makes virtualizing a business-critical application such as SQL Server much easier. The Nutanix distributed storage fabric is a software-defined solution that provides all the features one typically expects in an enterprise SAN, without a SAN’s physical limitations and bottlenecks. SQL Server particularly benefits from the following storage features: Localized I/O and the use of flash for index and key database files to lower operation latency. A highly dist
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