Installation & Configuration

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

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. 

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.

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

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?

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

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?

Hello i have a 4 Lenovo HX 3320 nodes. I updated all bmc on this servers. When i am installing new aos throw Foundation 4.6  its fails with this error Hele is 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(192.168.1.22) @e2d0>) @e550> from PENDIN

Many users are unaware that there are additional (beyond what is presented via the Prism user-interface) security parameters that can be employed on AHV hosts to increase the overall security of them. These security parameters are configured via Nutanix Command-Line Interface (NCLI) and include the following: Advanced Intrusion Detection Environment (AIDE) - a file and directory integrity checker High Strength Password Enforcement - configure the maximum and minimum number of characters the password must contain along with number of passwords retained in history to prevent repeated use Core Dumps - the recorded state of the working memory for a process is dumped to a file if the process ever crashes Login Banner - display a customized messages when user login to a node More information regarding these parameters, including the procedures to enable/disable them, can be found within the Hardening AHV section of the Nutanix Security Guide. Also to note, there are similar parameters

SAP helps customers migrate from traditional relational databases to their in-memory SAP HANA database to gain more agility in their business processes. Many SAP customers are searching for ways to deploy SAP HANA in an efficient, simple way that minimizes risk while preserving the benefits of an agile platform. Nutanix provides such an option. The native Nutanix hypervisor, AHV, and Nutanix enterprise cloud OS software are certified for production SAP HANA deployments. HCI for SAP HANA CertificationThe certification has two primary segments. 1. As the first step, a platform vendor (Nutanix, in this case) must validate their platform, which consists of a hypervisor and an HCI component.2. In a second step, the hardware OEM must certify a suggested configuration through some additional HCI-related tests. When both parts of the validation are complete, the solution is certified and listed in the HCI for SAP HANA category on the SAP website. The hardware OEM is then responsible for selli

Any modern environments consist of multiple layers each of which contains multiple components. There are switches and routers, firewalls, physical server, application servers, applications themselves and, of course, users. Each of the components has logs of more than one kind, location and severity. All the components interact with each other directly or indirectly. I am certain you have found yourself in a situation where to establish a root cause you had to inspect logs of more than one entity. Establishing a timeline of events is always easier when the sources of the events’ clocks are synchronised and are located in one central location. While the clocks are handled by the NTP the centralised logs location is a syslog server or in this case a remote syslog server implying that it is separate to the origination of the logs. In addition to the benefits already mentioned, remote syslog server allows to access logs for the systems that are already dead, decommissioned or replaced. Nuta

Use the Data Services IP method for external host connectivity to VGs. For backward compatibility, you can upgrade existing environments non disruptively and continue to use MPIO for load balancing and path resiliency. For security, use at least one-way CHAP. Leave ADS enabled. (Enabled is the default setting.) Use multiple disks rather than a single large disk for an application. Consider using a minimum of one disk per Nutanix node to distribute the workload across all nodes in a cluster. Multiple disks per Nutanix node may also improve an application’s performance. For performance-intensive environments, we recommend using between four and eight disks per CVM for a given workload. Use dedicated network interfaces for iSCSI traffic in your hosts. Place hosts that use Nutanix Volumes on the same subnet as the iSCSI data services IP. Use a single subnet (broadcast domain) for iSCSI traffic. Avoid routing between the client initiators and CVM targets. Receive-side sca

Hi, I have 2 Blocks (2 Nodes each) Cluster. I just added 2 DIMM Memory (2 x 32GB) in 1 of my Node. I put 2 memory on slot P1-DIMMC1 and P1-DIMMF1Before Adding DIMMAfterr Adding DIMMAfter that i ran NCC and shows warning like thisAlert from Nutanix ClusterAm i did something wrong with the steps by steps? Since in PRISM, total memory has been increased and i thought it’s just fine.

Nutanix Objects OverviewNutanix Objects™ (Objects) is a software-defined Object Store Service. This service is designed with an Amazon Web Services Simple Storage Service (AWS S3) compatible REST API interface capable of handling petabytes of unstructured and machine-generated data. Objects addresses storage-related use cases for backup, and long-term retention and data storage for your cloud-native applications by using standard S3 APIs. You no longer have to introduce an external, separately managed storage solution. Objects is deployed and managed as part of the Nutanix Enterprise Cloud OS.You can manage objects by using Prism Central or the S3-compatible REST APIs after an administrator has authorized the applications and users to access buckets accordingly.For more information on Objects architecture, refer to Nutanix Bible.Usage of ObjectsFollowing are examples of solutions you can implement by using Objects: Backup – You can integrate Objects with the backup applications such as

Hi everybody,I just found out that 531,82GB can be used from 960GB SSDs in a Nutanix cluster node. Using 1,92TB SSDs offer 1.22TB usable space.What about the 3,84TB SSDs. How much space can be used with these drives?ThanksDidi7

Pre-requiste for ESXI Upgrade  Need to enable both HA, and DRS https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.avail.doc/GUID-1D8B1384-59A4-41E2-AF05-697FC06D9EF9.html When vSphere HA performs failover and restarts virtual machines on different hosts, its first priority is the immediate availability of all virtual machines. vSphere HA uses the virtual machine's CPU and memory reservation and overhead memory to determine if a host has enough spare capacity to accommodate the virtual machine. After the virtual machines have been restarted, those hosts on which they were powered on might be heavily loaded, while other hosts are comparatively lightly loaded.In a cluster using DRS and vSphere HA with admission control turned on, virtual machines might not be evacuated from hosts entering maintenance mode. You must manually migrate the virtual machines off of the hosts using vMotion. This behavior occurs because of the resources reserved for restarting virtual machines in th

Hello all, i have nutanix 3460 g7 4 nodes and also have disk and tape drives for backup and archival. to make it short is there any way that i can connect the disks and tape drives to the nodes so that i can make automatc backup and archival? 

When installing ce-2020.09.16.iso, I get an error about: hdparmStandardError Failed Command [hdparm -z /dev/sda] with reason [BLKRRPART Device or resource busy]My config is as follows:  - Intel PC (Optiplex 9020)  - USB disk with the .iso to boot from - A single Harddisk to do the installation onThis is reproducable on an Intel-NUC, exact the same issue..Now, I add an additional Harddisk (two HDs and one USB). Note that both HD’s are not carrying any nutanix data, format or whatsoever.  After the boot I get a different error:Phoenix: ISO is already mountedFATAL: Couldn’t find a hypervisor and an AOS installed, please package phoenix with a hypervisor and a AOS.  Please refer to Nutanix support portal for more information about this.My questions:Why do I get an hdparm error in the first place. When adding a disk, apparently to get around the hdparm error, I suppose that the ce-2020.09.16.iso supposed to provide me the hypervisor and all this.Not sure if the hdparm error is related. Furt

Typically, while deploying a new Windows VM on AHV, the VirtIO driver ISO needs to be mounted to allow the Windows Setup to discover the associated vDisk. Therefore, for each VM that needs to be created, 2 ISOs need to be mounted (the Windows installation ISO and VirtIO ISO).In order to simplify and expedite the deployment process, the VirIO drivers can be injected into the Windows installation ISO to create a single customized ISO.The prerequisites for this process are the following tools/files:PowerShell Windows ADK (Deployment and Imaging Tools Environment) Windows installation ISO Nutanix VirtIO driver package (It is recommended to use the latest version which can be downloaded from Support Portal) Administrative privileges on your Windows workstation.For detailed steps and screenshots regarding this process, please review KB 10290 in the Nutanix Support Portal.

Many users will create a Linux VM on their Nutanix AHV cluster using default installation options, then configure and install any appropriate applications or services within the VM, and then move onto other tasks. While this approach is certainly acceptable, many users are unaware that there are additional modifications that can be made to the Linux VM OS which can enhance the performance or the overall functionality of the VM.For example, there are several Linux kernel parameters which can be configured including “vm.overcommit_memory” and “vm.swappiness”. If leveraging iSCSI connectivity, there are several parameters that can be modified within the iscsid.conf file which can increase performance.Regarding disk usage, volume group striping can be employed using LVM to further increase throughput. There are further parameters that can be employed when mounting disks, and accessing disks can be assisted via a max_sector_kb parameter.You can find more information regarding these modifica

minimum_reqs.py The NICs are connected, not sure why its failing. Anyone knows? I have tried with foundation 4.6 and 4.5.4.2 . The Nics are connected an Intel with dell firmware 19.5.12. Existing cluster is running fine with same specs. 

Hi, I have questions.We are considering whether it can be operated with IPv6 in our IT infrastructure.So,I found that the prism element can be configured with an IPv6 address.　However, I didn't know if components such as Prism central support it. Can Nutanix configure IPv6 addresses?　Does Nutanix support IPv6?

I have an old G3 block that need to be installed for a demo.And after lots of failed tries from Foundation installation, I ended up installing the node manually. But unluckily after creating phoenix iso file for AOS installation and mounting it to the node, an error occurred with message below:“Unable to match system information to layout module”Has someone seen this happened before?  

Hello Nutanix CommunityI have a VM that is running CCTV operations. I record multiple video streams in a high resolution and frame rate. Old files get deleted when the space is used up. How can I make sure that the SSDs are not being used for the recording to avoid them to get too many write cycles too fast?Kind regards,Ibinema

Two Node Cluster creation Failed  It says Unable to reach SVM Ip’s but SVM Ip’s both ping fine.