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Installation & Configuration

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NareshMAdventurer

asked in Installation & Configuration

Nutanix cluster expand

Added 9 nodes(AHV) to existing cluster successfully and when i try to verifyLACP status with command (hostssh "ovs-appctl bond/show br0-up" | egrep "===|lacp_status") it is showing LACP status off.Steps i performed before adding the nodes to existing cluster1.Configured network on all 9 nodes2.Configured LACP on all 9 nodes Please advice.

1 year ago

RanuAdventurer

asked in Installation & Configuration

AlonaNutanix Employee

posted in Installation & Configuration

Reusing the nodes: should you re-image?

I feel it is time to address a seemingly minor question: should you re-image your nodes when re-using them from an existing cluster? To give a better idea of a setup, think of a cluster with eight nodes, for example. You would like to scale down the cluster and re-use 4 of those nodes to form another cluster. You have evicted the nodes, and you could create a new cluster at this stage but let's take a look at the pros and cons of rushing forward.Cluster creation does no wipe the system. All the files on the nodes remain as they are when you trigger cluster creation. That sometimes can mean issues with LCM upgrades or the cluster creation may error out. To resolve those issues you would need to find those files and chances are you would need a Nutanix Support Engineer to deal with that.Some features introduced in software releases are only available if the version is a fresh installation rather than an upgrade.Any networking changes you might need are easy to apply during the foundation

1 year ago

Aleksander PVoyager

asked in Installation & Configuration

NGT with APIv2 AHV not supported

Hi, I’m trying to create a automated NGT install script for my environment: Code:curl --insecure --request POST --url https://x.x.x.x:9440/PrismGateway/services/rest/v2.0/vms/ef064f22-7ac8-4221-96dd-4cc6f2433dfb/manage_vm_guest_tools --header 'authorization: Basic xxxxx' --header 'content-type: application/json' --data '{"operation":"MOUNT","override_guest":true,"uuid":"ef064f22-7ac8-4221-96dd-4cc6f2433dfb"}' Response:{"message":"Hypervisor ahv not supported","detailed_message":null,"error_code":{"code":1101,"help_url":"http://my.nutanix.com"}} AOS: 5.15.1

1 year ago

NareshMAdventurer

asked in Installation & Configuration

Cluster expand: Controller VM disconnected from network

While expanding cluster out of 4 nodes able to add one and remaining three nodes failed with error “Controller VM disconnected from network”Description:Controller VM is not reachable from Controller VM in the last 3 attempts.

1 year ago

LinuxAdventurer

asked in Installation & Configuration

NGT on Debian (and other distributions)

Hi,Is there any ETA for Nutanix Guest Tools for Debian 10? Debian 11 is probably going to be released this summer, so it would be quite nice if NGT supported Debian 10. Or is there a way to “forcefully” install Nutanix Guest Tool on newer systems? Is it possible to build it ourselves to we can distribute it on our thousands of VM’s that is running?

1 year ago

ashwin.ramaswamyNutanix Employee

posted in Installation & Configuration

Flow Microsegmentation Guide

Security PoliciesTraditional data centers use firewalls to implement security checks at the perimeter—the points at which traffic enters and leaves the data center network. Such perimeter firewalls are effective at protecting the network from external threats. However, they offer no protection against threats that originate from within the data center and spread laterally, from one compromised machine to another.The problem is compounded by virtualized workloads changing their network configurations and hosts as they start, stop, and migrate frequently. For example, IP addresses and MAC addresses can change as applications are shut down on one host and started on another. Manual enforcement of security policies through traditional firewalls, which rely on network configurations to inspect traffic, cannot keep up with these frequent changes and are error-prone.Network-centric security policies also require the involvement of network security teams that have intimate knowledge of network

1 year ago

Venkata SainathExplorer

asked in Installation & Configuration

Storage Performance Issues

Does anyone facing Storage performance issues on Hyper converged infra for VDI environment.

1 year ago

SyncraAdventurer

asked in Installation & Configuration

How can I upgrade AOS version without Prism?

Hi all,I have a small question.For the pre-installed AHV nodes with CVM, could we able to upgrade only AOS version before creating cluster? Because the AHV version already same version as our desired version, but AOS version is not same. I know the way to re-install AHV and AOS by Foundation VM, but the way takes long time. Therefore I' d like to update for only AOS if we can.In the other hands, we can upgrade AOS from Prism UI so I will able to upgrade AOS after creating a cluster. So this question is just for my reference.My environment is belowAOS : 5.15.2 (want to upgrade to 5.15.5)AHV : 20170830.434

1 year ago

swee hanAdventurer

asked in Installation & Configuration

Configuring AIDE on AHV and CVM

Hi,I would need some guidance on enabling Aide on AHV and CVM and strong password policy for the hardening.I found the guide on this link: Hardening Controller VMIf I enable the AIDE on AHV and CVM. Is there anything need to be done? Additional appliance to deploy?

1 year ago

PieroTrailblazer

asked in Installation & Configuration

How To Create A Disk Image From Volume Group

Hi all,I´m attempting to create one image from a disk stored inside a volume group.While I have succesfully tested image creation for standard disks using acli and api I didn´t find how to repeat the same task for disk stored inside Volume Group.As well documented here and in ther KB articles these sample commands works:ACLIacli image.create image-name container=default-container-nnnn source_url=nfs://127.0.0.1/default-container-nnnn/.acropolis/vmdisk/uuid image_type=kDiskImageAPI with curlcurl -X POST --header 'Content-Type: application/json' --header 'Accept: application/json' -d '{ "annotation": "cloned disk image", "image_type": "DISK_IMAGE", "name": "image-name", "vm_disk_clone_spec": { "disk_address": { "vmdisk_uuid": "UUID" }, "storage_container_uuid": "UUID" }}' 'https://PE-IP-ADDRESS:9440/PrismGateway/services/rest/v2.0/images/'But when I try to use the disk uuid of the disk inside a VG the commands fails both from ACLI than API.Any suggestion/workaround?Tha

1 year ago

HishamIsmailVoyager

asked in Installation & Configuration

Number of Disk per node

We are considering AHV for our environment. I notice that the OEM partner product list https://www.nutanix.com/partners/oem has fixed set of disks. Most of the hardware in the list are capable to be installed with more disks. For example Fujitsu servers are capable of 12 x 3.5 + 4 x 2.5 (on the rear),Can we utilize all disk slots in a configuration like 12 x 4TB NL-SAS + 4 x 1.92TB 2.5” SSD or 4 x 1.6TB NvME ?

1 year ago

swee hanAdventurer

asked in Installation & Configuration

Particular VM events

Is there anyway I could get all the task or activity of a particular VM?

1 year ago

MelissaAdamsAdventurer

asked in Installation & Configuration

Move ESX nodes from 1 cluster to another

Hey all -We removed 2 nodes from 1 cluster and want to add them to another. We disconnected from vCenter and then removed them from the cluster using PE. When they were relocated to the new location, the vlan is the same and they could keep their same IP addresses, but the new cluster could not see them. It sounds like the customer had configured Distributed switches on the old cluster. Do I need to undo some of that networking to see the hosts? Would bare metal foundation be a better option and put AHV on the nodes? That is our next route, but I still think there is a problem with the network configured in ESX even for that. Is there any documentation around undoing the vmware networking for bare metal? With factory nodes, I would have just added them to the same vlan and assigned IPs using crashcart and then the cluster should have seen them. Help!

1 year ago

GaretNutanix Employee

posted in Installation & Configuration

Removing Individual VM Disks from Flash Mode

Flash Mode is a great feature ensuring that VM workloads remain within the flash (SSD) tier of storage. Once flash mode is enabled for a virtual machine, all of the disks associated with that VM (including any future created disks) automatically get added to the flash tier.However, sometimes having so many disks within the flash tier can cause performance degradation for other VMs that are not configured for flash mode (but could benefit from using the flash tier of storage) or can cause the available flash tier space to be consumed too quickly. Further, it is sometimes not desirable to have all of the disks associated with a virtual machine contained within the flash tier.Accordingly and, though not available as a Prism Web user-interface (UI) modifiable option, individual VM disks can be configured to not use the flash tier even while the VM itself is configured for Flash Mode. The procedure for removing individual VM disks from the flash tier involves using the Acropolis Command-Lin

1 year ago

Bob LaneAdventurer

asked in Installation & Configuration

Java Foundation Applet blocked

When I try to run the Nutanix foundation applet, Java tells me that the file does not meet high or very high security requirements and that it is missing a certificate. I can’t add it to the site exception list because the file: protocol is not secure. Some guidance would be helpful.

1 year ago

chenzh4Trailblazer

asked in Installation & Configuration

diagnostic.py failed to run on ESXi 7

Hi I deploy a 3 nodes cluster with ESXi 7.0 as the hypervisor successfully on AOS 5.15.3.But when I run the diagnostic.py to check the cluster performance. It always failed to boot the diagnostic VM. I tried 3 times and all is same. from the log, seems the CVM cannot reache the diagnostic VM when check the boot status.I login to vCenter and check that there is no IP address for this VM in the summary page. And I can login the diagnostic VM from the VM console, I can check the ip address which is 192.168.5.253, but I cannot ping 192.168.5.254 and 192.168.5.1. also cannot ping 192.168.5.253 from CVM.From this information, I think the CVM cannot reache the diagnostic VM and timeout, so the diagnostic.py will fail after timeout. Is there any idear for this test? I can run thie script successfully in ESXi 6.7.

1 year ago

Farhad978Adventurer

asked in Installation & Configuration

Cannot install freshly AOS

Hello. i Have a 4 nodes Lenovo HX3320. When i want to install AOS it fails. Foundation 4.6AOS 5.15.4 I updated bmc firmware and reset it. But it didnt work.Can you help me with this problemhere is the log 2020-12-10 12:38:39,191Z DEBUG Setting state of <ImagingStepValidation(<NodeConfig(192.168.1.22) @e2d0>) @e5f0> from PENDING to RUNNING2020-12-10 12:38:39,197Z INFO Running <ImagingStepValidation(<NodeConfig(192.168.1.22) @e2d0>) @e5f0>2020-12-10 12:41:01,398Z DEBUG Cache HIT: key(<function common_validations at 0x03D71230>_()_{'global_config': <foundation.config_manager.GlobalConfig object at 0x054D0E90>})2020-12-10 12:41:01,405Z DEBUG Setting state of <ImagingStepValidation(<NodeConfig(192.168.1.22) @e2d0>) @e5f0> from RUNNING to FINISHED2020-12-10 12:41:01,410Z INFO Completed <ImagingStepValidation(<NodeConfig(192.168.1.22) @e2d0>) @e5f0>2020-12-10 12:41:01,415Z DEBUG Setting state of <GetNosVersion(<NodeConfig(192.1

1 year ago

mandgTrailblazer

asked in Installation & Configuration

Query NCC versions

I have 20 clusters under management of our Prism Central and would like to know the versions of NCC installed in each. Is there a way to singularly collect this info across all PE clusters? Perhaps in nCLI even?

1 year ago

ashwin.ramaswamyNutanix Employee

posted in Installation & Configuration

IPMI Commands to Set Interfaces to Dedicated and Shared Mode

This article contains IPMI commands for checking and setting interfaces to dedicated or shared mode. For example, after a BMC upgrade, the IPMI might not be accessible. So, you need to verify and change the interfaces to dedicated or shared mode. Note: To run ipmitool commands on an ESXI host, prefix all commands with a forward slash (/). Note: To run ipmitool commands from a remote system such as the CVM (Controller VM), add the "-I lanplus", "-H <IPMI IP>", "-U <username>" and "-P <password>" parameters to the ipmitool command. For example: nutanix@cvm$ ipmitool -I lanplus –H x.x.x.x –U ADMIN –P <password> <command> Quanta Platform Use these commands for an NX-3400 (Quanta) platform. All commands are executed dynamically and a restart is not required. Check the status. [root@host]# ipmitool raw 0x0c 0x02 0x01 0xff 0 0 An output similar to the following is displayed.1100 :00 - Shared port 1101 :01 - D

1 year ago

Diego AzevedoAdventurer

asked in Installation & Configuration

vCenter registered but connection is no stabilized

Hi,I am implementing a Nutanix Cluster with Lenovo HX5520, when I register the Prism in vCenter the process appears as completed but I cannot create virtual machines by Prism Element and when running the NCC I return communication errors with the vCenter is not stabilized. I did the communication test of the CVMs with the vCenter on ports 80 and 443 and the connection worked successfully. when checking by cli I see that the connection is ok, but it does not provide me with the settings of vcenter follows the difference from another implementation any idea what it might be?

1 year ago

W.vdMheenScout

asked in Installation & Configuration

Automatically power on VMs at cluster startup

In VMware, there’s the option to automatically power on VMs as the cluster is started. Is there such an option in Prism or do you have to rely on a script?

1 year ago

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