Nutanix Cloud Manager

If you ever find yourself in a position of locking root user on an ESXi host, there is an easy way out.Since the CVM communicates to the local host via a dedicated network handled by vSwitchNutanix it is possible to clear the lock for the ESXi host from the CVM. Verify first that the account is locked. Typically, authentication via an SSH session fails while the DCUI accepts the credentials. Log in to a CVM and call for the account lock rest remotely while connecting to the internal IP of the host.  For more details on the verification and the process itself, refer to KB-5703 ESXi root password does not

I am looking to replace my SSL certificates on my Prism Central and Prism Element deployments with Lets Encrypt wildcard certificates. I can request the wildcard certificates easily enough sudo certbot -d example.com -d *.example.com --manual --preferred-challenges dns-01 --server https://acme-v02.api.letsencrypt.org/directory certonly I get generated three files: privkey = /etc/letsencrypt/live/example.com/privkey.pem chain = /etc/letsencrypt/live/example.com/chain.pem fullchain = /etc/letsencrypt/live/example.com/fullchain.pem Can anyone advise what openssl commands I can use to convert these .pem files to the required format needed for Prism Central/Prism Element? I have attempted multiple commands from https://www.sslsupportdesk.com/openssl-commands/ but I can't seem to find the exact one. I can also grab the intermediate/root certificates from here if I need additional certs. ht

To reboot an ESXi host, to trigger a PPR for a DIMM for example, when DRS is on and fully automated there a few questions to be answered before putting together a sequence of steps.First of, should we disable the DRS? When a host is taken out of the maintenance mode the DRS will rebalance the load on the host and as such VMs will migrated back onto the host that has just exited maintenance. What if the CVM is not ready? After all, the CVM is the entity the serves storage to the VMs. Will be VMs affected if the CVM is not fully booted or has not exited maintenance mode by the time VMs are returned to the host? Luckily, the VMs will not be imacted in any way as at the time of placing CVM into the maintenance mode the storage traffic is re-routed and is now handled by other CVMs in the cluster.Should we evacuate powered off VMs for a host reboot? The answer depends on the risk tolerance and risk assessment of the issue. Is it likely that the host may experience issues aft

Title is most of the question… I have a 3-node, local-only cluster (no remote / stretch replication or anything). What do I gain from setting up Prism Central? It seems like Prism Element gives me all of the management capabilities I need (running AHV, probably won’t have more than 20-40 VMs).It feels like standing up PC, even in the single-VM / non-redundant version, will just be a waste of RAM and storage on the cluster. Is there some compelling argument for Central that I’m overlooking because I’m a Nutanix noob?

AOS Version 5.10.8.1ESXi 6.7CROME 86.0.4240.75 Opening a VM console I always get connection closed (error 1006):There was an error connecting to the VM. This could be due to an invalid or untrusted certificate chain or the VM being powered off. Please use the latest version of Chrome, Firefox or Internet Explorer if the problem persists.

Hi Everyone,I want to ask some questions.I have 1365G6 , and then there will be two 8235G7 and one 8135G7.When all 8000 join 1365, there will be a total of 4 blocks and a total of 8 nodes.If I enable BLOCK FAULT TOLERANCE, how to calculate the available space ? After enable BLOCK FAULT TOLERANCE can I remove the two 8000s and reinstall them as a backup cluster?? Or can it return fault tolerance domain to nodes?Thanks

I want to fetch report results from Prism Central, and thought the Prism v3 API might do that.  I get a 404 when I call any of the reports endpoints.  Other API calls I have tried work as expected, including for vms, clusters, and others.For example doing a POST to this address:https://myprismcentral:9440/api/nutanix/v3/report_configs/listreturns HTTP 404 and this message:{"message": "The requested URL was not found on the server.  If you entered the URL manually please check your spelling and try again. You have requested this URI [/v3/report_configs/list] but did you mean /v3/remote_connections/list or /v3/alerts/list or /v3/containers/list ?"}I would appreciate any advice, please.  Thank you very much.

Greetings all--  I’m curious what larger Nutanix (over 20k VMs) are doing when it comes to VM management.  Let’s say vCenter/VMM are out of the picture and it’s all a native AHV/PrismCentral environment; however, it’s got clusters scattered all over the country with various VM admins needing access to their own cluster’s VMs (not hosts) while the clusters are all still being managed centrally.  Is there a folder/OU type of construct that you can permission out?  How about multiple application owners within the same cluster-- can you give app-owner-x access to just their VMs while app-owner-y only sees/accesses their own VMs?Really just learning at this point if that kind of scaled out VM management is capable with large AHV/Prism environments?  Thanks for any insights!

Hi, I have a query regarding the snapshot reference numbers in a replication alert I received recently.  The error message is 'Replication was skipped for protection domain xxxx-Policy of snapshot (4779634355498612345, 1559835678912345, 75812345) to remote site xxxx-DR. Replication was skipped as a newer Recovery Point was available'.  I understand the last number refers to the ID of the snapshot but what do the two longer numbers refer to?  Many thanks.

Since Esperanto never really took off English has become the universal language for business, education and IT industry.It does not mean, however, that you must use English in your environment. Prism supports localization to Japanese and Chinese languages. As any feature Prism localization has its limitations:Logical entities that do not have a contextual translation available in localized language are not localized. The AOS generated alerts and events are not localized to the selected locale language. Following strings are not localized: VM, CPU, vCPU, Language Settings, licensing details page, hardware names, storage denominations (GB, TB), About Nutanix page, EULA, service names (SNMP, SMTP), hypervisor types.

PRISM:Prism Central is the centralized management tool for administrator to manage and monitor  multiple Nutanix clusters. Prism Central by itself is an appliance VM running on the Nutanix cluster and hence, runs distributed services similar to a CVM. Some of the features that enable a centralized management are Single Sign On to all Prism elements, performance monitoring analytics for monitoring performance, and many moreSSP:The Prism self-service portal (SSP) or Prism Self Service Administration, enables the consumers of IT infrastructure within an enterprise: individual users or teams such as development, test, and DevOps to provision and manage virtual machines in a self-service manner, without having to engage IT in day-to-day operations.CALM:Calm (Cloud Application LifeCycle Management) is a DevOps Automation Platform that models applications and integrates your teams, governance, and life cycle operations to manage your applications. I

Anyone experience issues with Windows VMs, Server 2016 and 2019 in my case, not respecting a “Guest Shutdown” action if there hasn’t been any console activity for a while? This occurs with a Prism GUI shutdown or an API call to v2/vms/{uuid}/set_power_stateIs there a setting within Windows that is preventing this or is it a Nutanix issue? Thanks.

When a host running production workloads can become inaccessible or fails due to an unplanned event, AHV will restart the VMs on other hosts automatically (similar to ESXi). For tracking purposes, it is important to get a list of VMs that were running on the failed node and restarted across other nodes in the cluster.One way to gather this information is via the Prism web page. Each time there is an HA event, a task is generated in Prism that will give you a list of VMs that were restarted.Another method is to use the command line interface to look at the tasks and match the output UUID with the UUIDs of the VMs in Acropolis.More information about the above two methods can be found in KB 8956.

Whenever I take snapshots from Prism Central it shows under Recovery point but not under Snapshot. Not sure, if both are same Thing. Also, recovery point give an option to “Replicate” , whereas Snapshot give an option to “Restore”….are both same?

 Our datacenter experienced a power outage yesterday and when power was restored Nutanix powered up and everything was operational (Yay!). I've been attempting to find the setting that told the nodes to power up after an event like that rather than stay powered off. On desktop systems I know the BIOS has settings for power events like that but cannot find it in the IPMI web interface. Is there somewhere else I should be looking? Thanks.

Previously, adding an OVA image into an AHV cluster was a manual experience, involving un-tarring an OVA file and importing associated VMDK files using AHV’s Image Management.Now, from within Prism Central, you have the ability to natively import and export OVA files. The tasks that can be accomplished with this new feature are listed below:Export a VM as an OVA Upload an OA Deploy an OA as a VM Download an OVA file to your local machine Rename an OVA file Delete an OVA fileAlso to note, there is now a separate OVA dashboard which is used to perform the above tasks (except for the “Export a VM” task, which is located under the VMs Dashboard).More information about this feature and the tasks mentioned above can be found within Ova Management section of the Prism Central Guide located on the

Hi all,I wanted to register Prism Central in my cluster. I need to set the inital password, that I am aware of. My problem is no default password I found works.I tried these:admin/adminadmin/nutanix/4uadmin/Nutanix/4uDoes anyone know what the right default password is for the latest version?Kind regards Christian

The newest Version (Release 5.18) could be downloaded here:https://next.nutanix.com/discussion-forum-14/download-community-edition-5-18-38417?fbclid=IwAR0VaxbzWU-IzWLsWrOQVW7gD26AK9yQotPKhyl-ZSxRE2Iw7WOk8UmL74wBUT:If you have deployed a Prism Central and want to update you get an error about an unsupported version in Prism Central Upgrade Section.To solve that do the following:Unregister your cluster from Prism Central (2 Times ssh on one of your CVMs, onetime on your Prism Central CVM). Read this article: https://next.nutanix.com/prism-infrastructure-management-26/unregister-a-prism-central-37829You should gra

When it comes to passwords, I am the worst. I can not remember a single password I have. Worse, I struggle to type it correctly. In some way, this is an advantage as I have to reset all my passwords frequently. While you, reader, may think that this does not apply to you, I am confident I am not alone in my struggle. Incidentally, I have seen a few cases dedicated to being unable to log in to Prism with admin credentials or to a CVM as nutanix. Below is a very generic approach on how to handle the issue.First of all, I feel compelled to remind you that there is a lock out timeout for consecutive failed authentications. By default, the timeout is 15 minutes, but you can unlock the account from a CVM when logged as nutanix.In some cases, a password is simply unknown for whatever reason. Again, if you know nutanix user credentials, you can log in to CVM and change the password.What if you are certain that the password is correct and, maybe, even unlocked it already

If you have decommissioned a vCenter without unregistering it with the Prism and now are unable to complete the task, there may be a solution.For AOS 5.5.x provided the symptoms match an upgrade may be required to resolve the issue. If you see all of the following, upgrade to AOS to 5.5.6, 5.8.2, 5.9 or later.An attempt to unregister a vCenter instance that does not exist anymore from Prism using vCenter Registration page creates a task that fails at 100% progress. Using the "ncli managementserver unregister" command produces the same outcome. Uhura logs (home/nutanix/data/logs/uhura.out) show vCenter is not r

To provide access to cluster storage, Nutanix Volumes utilizes an iSCSI data services IP address to clients for target discovery. This iSCSI data services IP address acts as an iSCSI target discovery portal and initial connection point. Nutanix does not recommend configuring iSCSI client sessions to connect directly to Controller VM IP addresses.  Changing Data Services IP address requires downtime and planned maintenance for affected services and applications. Prior to changing the Data Services IP address, check if any of the features below are enabled on the cluster, such as Calm, Leap or Xi Leap, Karbon, Objects or Files. If none of the features is enabled, proceed with changing the Data Services IP Address as per the

The Health Page within Prism is a great resource to keep track of the status of your environment. With a simple dashboard layout, the health page provides checks for many components of the Nutanix environment. This dashboard is dynamically updated with health information based upon Nutanix Cluster Checks (NCC) which execute at specific time intervals.Historical data is also captured and presented in this dashboard using a table and graphical layout. For example, if a check has reported as failed, reviewing the historical data can help determine if the failure was the result of a change within the environment at a particular time. This data also assists Support in determining where to review in logs if further troubleshooting is needed.For more information about the Health Dashboard, please review the associated documentation found in the

It’s over a hump day so a quick tip today.In AHV if you ever attach a VM’s disk to a Windows VM and then delete the disk owner VM you will still see the disk as attached and browsable. Refreshing disk information in Disk Management utility in Windows will result in marking the disk as “Not Initialised”. Rescan the disks instead.For more details refer to KB-7368 AHV | Deleted VM disk attached to Windows VM is accessible from guest OS

I am confident that by now you have heard of Xi Leap and Leap. While both of the products have the same purpose they are quite different. Xi Leap will recover into the Cloud. With Leap, however, you recover to another of your sites.Leap offers an entity-centric automated approach to protect and recover applications if there is a failure. It uses categories to group the VMs and automate the protection of the VMs as the application scales. Application recovery is more flexible with network mappings, an enforceable VM power-on sequence, and inter-stage delays. Application recovery can also be validated and tested without affecting your production workloads. Asynchronous, NearSync, and Synchronous replication schedules ensure that an application and its configuration details synchronise to the recovery location for a smoother recovery.Roughly, what are the options here? You can recover within Prism Central management domain i.e. between clusters or sites that are managed b

If you are running AOS 5.10.9 or below or AOS 5.11.1 and thinking of upgrading or have already scheduled one there is on thing to consider prior to executing the task.Check the size of localhost_access_log.txt file. If it has grown out of proportion (several GB) then you may want to clear it first and, if you can, chose AOS 5.10.10 or later, AOS 5.16.1 or AOS 5.17 or later as an upgrade target.Otherwise you may find some issues with the upgrade.Save yourself some hassle and see the details in the KB-8561 Prism Central/Prism Element upgrade failing with /home space constraints due to localhost_access_log.txt files not rotating