How It works

Which node type does not deploy a Nutanix Controller VM. A bit confused with documentations available some say “Compute only” and other say “All Flash”One more question A vDisk is read by multiple VMs. The cluster creates immutable copies of the vDisk. What are these vDisk copies called.

We noticed that recently in our test cluster all operations take very long to complete. This seems to be due to long lasting “cerberus” tasks being executed with a type “uncharge”. Does anyone know what “cerberus” is doing or how I could speed it up? Whenever we kill the cerberus tasks manually all other queued ‘non cerberus’ tasks start to execute.

Below are new knowledge base articles published on the week of May 9-15, 2021.KB 10162 - NCC Health Check: disk_power_check KB 10204 - NCC Health Check: esx_product_locker_setting_check KB 10414 - NCC Health Check: ahv_file_integrity_check KB 10420 - NCC Health Check: stale_recovery_points_check KB 10461 - NCC Health Check: aide_check K

HCI runs on ESXi hosts, and VMs are protected with Async Protection Domain. I wonder, how to find which host a recovered VM will be registered with? I guess, it’s a certain service “leader”? Also, can I change it?

Not sure why but there appears to be an absence of documentation pertaining to required ports that might need to be opened in a firewall to access the CVMs. Perhaps Nutanix thinks that organizations aren't going to firewall off the cluster to protect access from malicious users. If I'm wrong why don't I see a list of ports that are needed to access the CVMs rather than KB articles showing what outgoing ports are needed in a perimeter firewall? In order to properly protect a cluster the CVMs should sit behind a firewall, which in my architecture this will be the case before we go live with anything. In order for admins to access the CVMs through a firewall TCP 22 is needed for SSH, and 80 and 9440 are needed for accessing the web console. Is this is? or are there more ports that would need to be opened up for the various types of admin interactions? how about running cli tools against the cluster? how about

I was trying to get AlienVault (OSSIM) to run on Nutanix, but I have hit a road block. I was able to get the install dialog to run after setting the boot to legacy bios. However, after install, It fails to boot.My questions, do any of you use any open source SIMS solution that works in Nutanix?I could accept a SIMS solution at a cost. However, after going through sales with LogRythim and splunk, I was frustrated because both of them incure log ingestion fees. We may have a good budget, but we are limited with our operational cost.Thanks for any assistance you can provide.

Why need volume_group_uuid when i create a new Volume Group???how to get the volume_group_uuid?

Hello Nutanix community. I have problem with upgrading my AHV version. I attached error screenshot. How can i solve this problem without any power off, reboot or other actions? Because it production environment. Thanks

Below are new knowledge base articles published on the week of May 2-8, 2021.KB 10315 - Unable to boot to Windows after P2V conversion to AHV KB 11030 - Node add fails with VMD-enabled nodes on AOS 5.19.1 or 5.19.1.5 KB 11040 - Alerts page in Prism displays entity type in Source Entity column instead of the name of the entity KB 11121 - "Host restore VM locality” task disappears in Prism if the VM migrations fail KB 11173 - Xi Frame - Canno

I would like to run a command from a host to gather the info just allssh does on cvms. I would like to avoid login into all the host and run a quick check from any of them. is there any easy way to do that?I read about hostssh command but my bash is not able to found it.

Below are new knowledge base articles published on the week of April 25-May 1, 2021.KB 10287  - NCC Health Check: esx_cvm_cpu_resource KB 10450  - LCM Troubleshooting: Dark site direct upload (no webserver) KB 10736  - NCC Health Check: check_node_ssh_keys KB 11058  - Creating or Updating an Existing MCS Catalog in Citrix Studio fails with "JavaScriptSerializer" error KB 11065  - "Unable to retrieve OVA information" error message in Prism C

Below are the top knowledge base articles for the month of April 2021.KB 7503 - NX Hardware [Memory] – G6, G7 platforms - DIMM Error handling and replacement policy KB 4141 - Alert - A1046 - PowerSupplyDown KB 1540 - [AOS Only] What to do when /home partition or /home/nutanix directory on a Controller VM (CVM) is full KB 4409 - LCM: (Life Cycle Manager) Troubleshooting Guide KB 1113 - HDD or SSD disk troubleshooting

Below are new knowledge base articles published on the week of April 18-24, 2021.KB 8185 - NCC Health Check: bond_uplink_usability_check KB 9366 - Alert - A802001 - AncServiceUnresponsive KB 10089 - NCC Health Check: ovs_bond_config KB 10128 - NCC Health Check: node_schedulable_check KB 10389 - Alert - A801103 - L2StretchInvalidVpnVersion

Can someone explain the difference between the two ?? and what are the pros and cons of them

Hi i need to download AOS 5.10.0.1 LTS

it used to take considerable effort to deploy nutanix in qemu/kvm lab, previously i had to modify install script to bypass bs hdd/ssd performance tests, etcrecently i had to test something and needed to deploy ahv,  i noticed installation iso and i thought, hey, i don’t think it was there before, probably nutanix is going in the right direction by simplifying things and now i get “an error occurred while trying to  illuminate the chassis led” and index out of range related to boot disk with that iso, loli guess i will have to dig into these install scripts againplease invest time in testing virtual deployments, and please follow KISS principleoff-topic: you have a category here in forums called “Deployment Success”, please create “Deployment Failure”, so that i and many others could properly place these threads

I have AHV nodes which have been disconnected on network, I am looking for a method to delete the data on each node through console locally. I have found a command but not sure if this will remove disk or wipe the data? Can someone please guide?Command: ncli> disk delete id="id" [force="force" ]running AOS 5.15.3

Hello Team,Please help me on the below issue. in our cluster one node is not up and runnig is’s below error for the same.  

Below are new knowledge base articles published on the week of April 11-17, 2021.KB 10388 - Alert - A801102 - L2StretchInvalidAncVersion KB 10390 - Alert - A801104 - L2StretchVpnConnectionNotFound KB 10391 - Alert - A801105 - L2StretchRemoteAzUnreachable KB 10392 - Alert - A801106 - L2StretchSubnetNotFound KB 10393 - Alert - A801107 - L2StretchCidrMismatch

Trying to upgrade to a specific version by uploading the metadata and binary of 5.17.1.3. This will make the cluster the same as all the others managed by PC.Currently, the version is 5.15.5.1 LTS.When I attempt to upload, I get this response:Software is not compatible with the current installed AOS version This makes no sense to me in that I don’t care that it isn’t compatible. I’m replacing it with this other version. Is this saying that I can’t go from 5.15.5.1 LTS and that I need to upgrade to a 5.16 before I can upgrade to 5.17? Would 5.16 be compatible?I tried finding the answer in the KB, but couldn’t find it (yet).

Self Service restore (SSR) lets you open and copy a previous version of a file. For SMB, you can use SSR to restore files. Enable or disable SSR through the Prism Web Console SSR for SMB does not restore streams or attributes in directories. Files does not support SSR at the root of distributed shares or exportsFiles take snapshots of the stored cluster data at the share/export level. Self-Service Restore (SSR) exposes these snapshots to the share or export. SSR lets you restore a file from any of the previous snapshots without an administrator. SSR is disabled by default, but you can enable it during or after share or export creation. By default, Files creates a snapshot every hour and retains the m

Hi everyone,When create Volume Group, I’ll select the allowed source VMs to access my VG either internal VM or external client, the question is in which cases I need to configure Filesystem Whitelists? Thanks in advance.  

The last couple days I have received an error email indicating that snapshot replication to AWS was skipped because a newer snapshot is available. I'm looking at the replication status and I see:Id                        : 15008898    Protection Domain         : Exchange    Replication Operation     : Sending    Start Time                : 04/09/2021 19:49:01 MDT    Remote Site               : *RemoteSite*    Snapshot Id               : 15008893    Aborted                   : false    Paused                    : false    Bytes Completed           : 75.22 MiB (78,870,811 bytes)    Complete Percent          : 3.2552084E-4    Id                        : 14973755    Protection Domain         : ERP    Replication Operation     : Sending    Start Time                : 04/08/2021 18:00:01 MDT    Remote Site               : *remoteSite*    Snapshot Id               : 14973750    Abo

Hello, I want to know each usage rate of hosts recommended by Nutanix.(For example, do not exceed 90% of the host's memory.)→ CPU, Memory, Disk Usage rateThis site is an ESXi environment.Is Nutnaix officially documented? Thank you.

Hello Community!! I'd like to discuss an ambiguous issue.There is an 3-nodes Hybrid Storage AHV cluster set to RF2. In this case, each node has 70% storage usage. Each node’s storage capacity is same.Of course, it's 70 percent overall.The data resiliency status is critical.That cluster has enough CPU and memory. The problem comes up from here.If one node goes down, will data rebuild occur?If data rebuilding occurs, the total cluster capacity will be over 95%.That would cause problems with the cluster's IO. Is there anyone who can clearly tell me how the cluster works in the event of a failure in that situation.