Deployment Success

Just a quick question about sizing SSD capacity to HDD capacity in a node (in a new homogenous cluster). When specifying drive space in a node, what is the percentage SSD to HDD per node at a minimum. Is there a best practice guide that someone can point me towards? I’m not asking about the number of HDDs vs the number of SSDs.The question is around capacity and not number or drives. e.g. I configure a node with 4TB of SSD (2x1.92TB) and 60TB of HDD (10 x 6TB) and Nutanix Sizer says this is fine. This is roughly 6.25% SSD But what should I have as a minimum SSD capacity of of a hybrid node is 6% Okay, or should it be more like 10% or 20% (or more)?

We get some questions from customer. Our customer have several Nutanix units with several models including:NX-1365-G4 NX-1365-G5 NX-8235-G4 NX-6235-G4 NX-8135-G4The question is whether HDD can be replaced with SSD? What is the procedure and what about the data on the HDD? Thanks

Below are new knowledge base articles published on the week of June 27-July 3, 2021.KB 10459 - NCC Health Check: usage_discrepancy_check KB 11002 - NCC Health Check: stale_primary_synchronous_replication_configuration_check KB 11044 - NCC Health Check: recovery_plan_modified_network_check KB 11167 - Pre-Upgrade Check: (Witness VM) test_witness_preupgrade KB 11637 - Unable to launch Nutanix Calm blueprint (new and old) when account is not in "Verified" state KB 11640 - Special characters in IPMI passwords on G8 nodesNote: You may need to log in to the Support Portal to view some of these articles.

Consider an application that requires very high IOPS, unattainable within the Nutanix environment due to the overheads of RF2 replication.  Can a raw NVMe front bay drive or workload accelerator be mounted onto a VM as a logical drive, and with no data replicated, in order to provide maximum performance.  Obviously it will be node locked, but this is acceptable,   Is this technically feasible?

Hello,I'm trying to execute a NC-Check via Ansible on all of our clusters, because till know it failed because of a missing firewall unlock. It seems to work kind of fine until the very end, were it does not say "Failed" or "Passed" (or something like that) but "Failed to execute NCC..":         "stdout_lines": [            "",            "################################################",            "# TIMESTAMP : 07/02/2021  2:33:05 PM (UTC +0200)",            "################################################",            "ncc_version: 4.0.1-329829c4",            "cluster id: 7805490355129540044",            "cluster name: gbru0010",            "node with service vm id 5",            "    service vm external ip: 10.202.89.19",            "    hypervisor address list: [u'10.202.89.15']",            "    hypervisor version: VMware ESXi 6.7.0 build-17700523",            "    ipmi address list: [u'10.202.89.11']",            "    software version: euphrates-5.15.1-stable",            "  

Below are the top knowledge base articles for the month of June 2021.KB 5505 - Long Term Support (LTS) and Short Term Support (STS) Releases (Applicable only to AOS) KB 6153 - NCC Health Check: default_password_check and pc_default_password_check KB 6945 - How Upgrades Work at Nutanix KB 4519 - NCC Health Check: check_ntp KB 1540 - [AOS Only] What to do when /home partition or /home/nutanix directory on a Controller VM (CVM) is full KB 4639 - How to place CVM and host in maintenance mode KB 3741 - Nutanix Guest Tools Troubleshooting Guide KB 4409 - LCM: (Life Cycle Manager) Troubleshooting Guide KB 2871 - NCC Health Check: Collecting Nutanix Cluster Check (NCC) Output from a Nutanix Cluster KB 8378 - NCC Health Check: Check Interface Configuration Files KB 5228 - NCC Health Check: pcvm_disk_usage_check KB 4723 - How to perform a controlled rolling reboot of CVMs, PCVMs or hosts KB 2896 - Nutanix BMC Manual Upgrade Guide KB 3263 - How to Enable, Disable, and Verify LACP on AHV hosts KB

We are implementing Nutanix with VMware. From a security point of view we want to monitor our new hosting platform. All other systems in the environment log to our SIEM product. Is there any guidance or can anyone give me some guidance on what to have switched on in the logging and to what level?

We are in the Process of expanding our 4 Node Cluster to 6 Nodes. The Installation of the Hosts was successful using the Foundation VM. However, the servers have Nvidia cards installed, so we need to install the driver as well. When the Cluster is expanded with the 2 extra nodes, my understanding of the command “install_host_package” is, that it will install the drivers on all hosts, that have Nvidia cards. Even those, that already have the driver. To do so it will migrate the VMs and put the Hosts into maintenance. This is not an option for us, since the reason we are expanding the cluster is that the current cluster already is overloaded. I am looking for a way to install the drivers without interfering with the up and running environment. For example, is there a way to install the drivers before expanding the cluster?

Use these firewall requirements to configure rules in your external firewall to allow Nutanix Remote Support, Pulse, SMTP, 1-click upgrades, and LCM updates. Source Controller VM / Prism Central IP addresses Destination nsc01.nutanix.net and nsc02.nutanix.net Protocol - Port TCP - 80 and 8443 Action ALLOW   Source Controller VM / Prism Central IP addresses Allows Pulse messages from the cluster to Nutanix support servers. Each Controller VM in your cluster collects Pulse configuration data continuously and sends Pulse metric data every 15 minutes to insights.nutanix.com over port 443 once every 15 minutes over HTTPS. Ports 80 and 8443 are the default ports that the cluster uses to connect to the Nutanix support servers nsc01.nutanix.net and nsc02.nutanix.net. Nutanix recommends that you open both ports. If one port is disabled, the cluster automatically tries to connect on the other. You can open the por

Can the CVM mount/create a new VMware datastore using NFS4 yet?

I have the latest version of Nutanix ERA installed in my lab and already have a registered Oracle server. From that server the template created without any problems and i can create new servers. But when i want to clone que existent server always fails wit: Driver execution failed. Error: 'NoneType' object is not iterable. Any ideas

Below are new knowledge base articles published on the week of June 20-26, 2021.KB 10938 - NCC Health Check: kernel_mitigations_check KB 11348 - After failing over the share using SmartDR, the share couldn't be accessed with Network Error. KB 11430 - AHV Feature Violation on Prism central KB 11519 - Flow traffic visualization UI in Prism returns error "Firefox can't establish a connection to the server" KB 11588 - Deleting Custom role in PC gives the error "Unable to delete XXXXX . This role cannot be deleted because it is associated with user(s)" KB 11590 - Prism Central: Prism Element Launched from Prism Central (PC.2021.5) is missing VM details and management buttons under VM section KB 11601 - Configuring Syslog Servers via PC Fails with INTERNAL_ERROR: 'pe_list'Note: You may need to log in to the Support Portal to view some of these articles.

We have 4 node AHV Cluster with approx. 30 VMs with RHEL 7.9. We are getting ping drop issue when we log into the VM and run IFCONFIG cmd we are seeing rx ping drop issue Can anyone tell what could be the issue here?

Data Avoidance technologies typically contribute the most to data efficiency because they prevent the creation of unnecessary data, which also minimizes the need for more resource-demanding data reduction technologies. With fewer back-end operations, more resources are available for front-end (user-driven) operations and applications. As Nutanix enables its built-in data avoidance technologies automatically, there is no need for manual configuration or fine-tuning.Thin ProvisioningThin Provisioning is a simple and broadly adopted technology for increasing data capacity utilization by overcommitting resources. Nutanix enables this feature in all containers by default. In deployments using the VMware ESXi hypervisor, containers are presented to hosts as natively thin-provisioned NFS datastores. Although it is a widely accepted method for increasing capacity utilization, thin provisioning traditionally has been associated with reduced storage performance. However, on Nutanix, thin provisi

Objects version upgrades by using LCM feature. You can perform LCM upgrades through Prism Central (PC). Objects is a part of the PC upgrades module in LCM. LCM upgrades the following components of Objects: Objects Manager and Objects Services.Objects ManagerObjects Manager is a containerized service running on a PC VM. The objects manager is primarily responsible for taking input from a user for deploying the object store, validating the user inputs, managing certificates, deploying the Objects Services and serves as an interface between PC and backing object store. A single Objects Manager can manage one or more object stores. In case of scale-out PC, the Objects Manager service runs on each of the PC nodes and provides high availability.During the upgrade of the Objects Manager, no disruption happens to the Objects IO. However, the user interface will not be available for a short period of time for statistics and management.Objects ServiceObjects Service provides the object store int

Two separate but related questions to Move:I’d like to confirm/verify regarding the Antivirus requirement. Many AV vendors offer the ability to temporarily disable their scanning engines (or at least they used to) except for MS Defender (aka MS Security Essentials/Windows Defender/Microsoft Defender/aka MS Defender 365 etc - either paid or free versions https://techcommunity.microsoft.com/t5/microsoft-365-defender/advanced-hunting-product-name-changes/ba-p/2009233).During an unrelated troubleshooting support call with Microsoft, they indicated that the Defender engine cannot be turned off/it’s built into the OS.Q1:So, as long as VirtIO drivers are able to get installed while Defender is running, is Microsoft’s Defender product exempt from the AV requirements mentioned above?Q1.1: Are there any particular settings/combination of requirements (i.e. CIS level 1 or 2 like configuration items for Defender) that would not be supported with Move?https://docs.microsoft.com/en-us/compliance/reg

Long story short, W2016 server moving from HV to AHV. VirtIO drivers are installed but whenever the machine boots after migrating to AHV, it's bsods with inaccessible boot device. If I go through the whole booting to recovery, deleting the driver and injecting the driver, it boots up but thats a lot of manual handling.When MOVE migrates to AHV it boots up as SATA drive then it seems to clone the disk and reattaches it as a SCSI drive. It boots to the desktop as SATA but then as a SCSI drive it fails, so the driver issue makes sense. The issue is why the drivers are not working when they're installed on the HV machine before migration and don't work after.

Era is a database as a service (DBaaS) that automates and simplifies database administration, bringing one-click simplicity and invisible operations to database provisioning and life cycle management.Era enables database administrators to perform operations such as database registration, provisioning, cloning, patching, restore and much more. It allows administrators to define standards for their database provisioning needs with end-state driven functionality that includes High Availability (HA) database deployments.Era allows multi-cluster database management. Database administration for different databases across multiple Nutanix clusters can be performed with a single Era instance. With the extension of support for Nutanix clusters, you can now use all the capabilities of Era on Nutanix clusters (both cloud and on-prem).Procedure: In the dropdown list of the main menu, select Databases. Go to Sources, select all the databases and click Remove to remove all the databases from Era. Cl

I am planning to upgrade my vcenter server appliance from 7.0 U1C to 7.0 U2b, as far as i know Nutanix only validate Esxi releases with respect to its AOS, can any one advise if i can upgrade the appliance?

The following document states that the CVM will be Redirected to another CVM after 30 seconds of inactivity.https://portal.nutanix.com/page/documents/details?targetId=Web-Console-Guide-Prism-v6_0:arc-failure-modes-c.html What response does the cluster request from Stargate?I want to know the details that the cluster requests to Stargate for 30 seconds.

What will be total usable space for the hypervisor and best practice to allocate the storage.I have three new Nutanix nodes. Physical capacity of Cluster is 79.04 TB and Free logical is 39.52 TB in RF2.

The following migrations are not recommended, but can be performed with some limitations. Exchange should be migrated by installing newer versions of Exchange Server in parallel with existing production environments, then move user mailboxes from the old system to the new one. Domain controllers should be migrated by preparing a new domain controller, and then migrating the Flexible Single Master Operations (FSMO) roles. Move migrates database VMs similar to any other VMs;however, the migration happens at the VM level, not the application level. Move will not perform any application-level changes, disk layout updates or best practices on the migrated VM. The above approach should be fine for smaller SQL DB servers and for servers without PCI Pass-through, pRDM disks or multi-writer disks (clustered NTFS). Also, for larger SQL DB servers, Nutanix recommends you to apply Nutanix best practices to create additional vDisks and rebalance data across those disks to take advantage o

Hello!Need help to understand problem and help. We have 4 nodes. Today saw one node have a problem with the power supply:use this command:ncc health_checks hardware_checks ipmi_checks power_supply_checkResult:1# FAIL: Power supply 1 is down on block block <name>2# FAIL: Power supply 1 is down on block block <name>My next action if physically all fine with PSU.Find in KB7386:Restore the power supply as soon as possible... If PSU info unavailable, upgrade to the latest BMC firmware, and apply factory default after BMC upgrade…If update BMC how long time to need and downtime need?Need help fix this problem, and your help, what steps do next.

HI all, I'm preparing a change on the cluster (6 node cluster running AHV). I need to re-ip cvm's and ahv's and add them to a specific vlan (now they are not in a vlan). Before I do this in production I decided to do this on the test lab. (old baby, 4 node G5). I've followed this guide: https://next.nutanix.com/installation-configuration-23/physical-relocation-of-nutanix-clusters-38403 but got stuck step 7 after booting the cvm's. The ouput of svmips shows the old cvm ip's but they are all booted with the new ones. (and accessible via ssh on the new ip's)The output of hostips shows the old ahv ip's byt the are all booted with the new ones. (and accassible via ssh on the new ip's). I must also say that the external_ip_reconfig script hangs at a specific time and now the command “cluster start” gives an error the the cluster is still in reconfigure mode. Anyone here who has the golden tip to get the command svmips and hostips to show the correct ip's? (zk_server_config_file also had the

I run a 6-node nutanix cluster, and planing to run some containers (LXC) , inside VM using ZFS pool, to leverage on easy clone, migrate, snapshot the containers mainly to transport those clones to other system (DR) I read that ZFS need to deal directly with disks hardware to be sure about what is or what is not actually written to disks.  Is ZFS suaitable or not, being run on top of nutanix platform, concerning the data corruption risk or losing pool, because it can’t deal directly with disk hardware? Hardware is supermicro bundled with nutanix-enterprise.