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1040 Topics
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Nutanix Employee
nirmal.ravirajan-57912Nutanix Employee
posted in Nutanix Disaster Recovery
What Happens When Restoring Protection Domain Entities with Volume Groups

When performing a restoration of a VM with a volume group on a different cluster, changes are made to the guest OS in order to connect to the restored volume group.Since the primary site’s data services IP address will no longer be valid, the guest OS will connect to the volume groups using the secondary site’s data services IP address. Also, all other SCSI target IP addresses on the guest OS will be removed.Another change that occurs is the IQN of the VM. When the volume group is restored, the IQN is updated with the timestamp of when the volume group was recovered. This allows for multiple restorations of the volume group if necessary. Therefore, the IQN needs to be changed in the guest OS iSCSI configuration as well. The Nutanix Guest Tools (NGT) CD is mounted on the VM to facilitate this iSCSI configuration change so that no manual changes are required.More information about the above restoration process can be found in the Support Portal here.

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Nutanix Employee
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BlakeRobertsNBLAdventurer
asked in AHV Virtualization
Finding VM Disk Ownership in AHV

Hi,Our 3rd party backup software does a poor job of cleaning up vdisks off of a proxy after it does its backups.  Many times, it will leave the vdisk from a snapshot mounted to its proxy server and not delete it.  This is a known issue that has been brought up with the vendor (Quest NetVault).  Our question is, what is the easy way to see what disks are owned by the proxy VM and what disks are owned by a snapshot image?  We want to be sure we don’t remove a disk that is owned by the proxy server.Thanks,

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Alona
Nutanix Employee
T
TRABELSIVoyager
asked in AHV Virtualization
DR Scenario and stop auto power on VM AHV

i have two quetion for our scenario : we have to AHV clusters production and  DR.in our scenario we need to stop the main be active after powered on when resolve the issue becouse if the main server goes down the DR will be active and after resolve the issue the two cluster will be active active?Q2: How to stop auto power on for VMs on AHV ?that means when the main site be on after solve the issue I do not need the VM powered on automaticlly.. I need to power it manually. 

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Alona
Nutanix Employee
joshodgers
Nutanix Employee
joshodgersNutanix Employee
posted in AHV Virtualization
Best practices for VMware vSphere HA

The following tables show the recommended configuration of VMware High Availability. Admission Control The below table shows the percentage values required for N+1 through N+4 availability for vSphere clusters of up to 32 (The Current maximum cluster size for vSphere 5.5). The green highlighted values represent recommended values based on the level of availability. In Summary the recommendations are: Cluster of =N+1 redundancy Cluster of >8 & =N+2 redundancy Cluster of >16 & =N+3 redundancy Cluster of >24 & =N+4 redundancy Host Isolation Response and Advanced Settings

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DalexPathfinder
posted in Nutanix Disaster Recovery
Can Nutanix infrastructure create memory dumps from snapshots?

Hello, I am an engineer with a security software vendor. We have a mutual customer that seems be experiencing system hangs on their vms in use on their Nutanix Acropolis platform. Admittedly I am not very familar with Nutanix as I mostly work with Vmware. These hangs are reportedly occurring after they upgraded our security product. Vmware has a process where we can create snapshot files and convert them into a memory dump file. This is helpful for our troubleshooting effort when normally you cannot take any action within the vm image to force a dump. I am trying to find out if the Nutanix Acropolis infrastraucture has any comparable capability. I will be suggesting that our mutual customer reach out to you as well, but am trying to inverstigate capability in parallel. Your assistance and advisement is welcome. David Alexander

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LMeyerovPathfinder
asked in AHV Virtualization
Stack for Nvidia Docker GPU compute?

We’re standing up some docker-based Nvidia GPU compute workloads for the rapids.ai ecosystem for replacing/accelerating Spark & friends. However, we’re lost in Nutanix GPU virtualization docs, so curious if folks have ideas on the pieces for nutanix to work here. Right now, we’re thinking P100/V100 GPU → ahv / esxi → rhel 8.x → docker, and as an optional reach target, see if we can guest multiple host OS’s to share the same GPU(s). We’ve successfully done GPU → Ubuntu+RHEL → docker, but without ahv/esxi in the mix.  Most ahv+esxi gpu articles seem more about VDI than compute, so we’re uncertain. Experiences? Ideas? Tips?

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Nutanix Employee
A
agExplorer
asked in AHV Virtualization
DWDM connection

We have the following senario at one of our customersIn the core there are 4 VSP8400 connected in a square. Two of the devices are in a Geo Redundant Datacenter.Between the links is an Extreme L2 SPBm fabric.Between the data centers the connections run over active DWDM devices.A measurement showed that if I deactivate a DC connection in the core, it takes about 400ms until the opposite interface reacts over the DWDM connection and also goes down.In the 400ms, however, traffic will still run over the link to nothing.Now my question:Do you see a problem on the Nutanix side if the switching time is 400ms or are there possibilities to adjust the sensitivity (buffer) of the Nutanix Datastore synchronization to the circumstances? 

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Neel Kotak
Nutanix Employee
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PierreragainassAdventurer
posted in AHV Virtualization
HyperV/Nutanix (SMB), VM import from Hyper-V manager

Hi, I'm trying to import a VM using hyper-V manager but it is always saying "can't access folder, you might have not permission to access this folder" and tried to check all VMs and the same issue shows up. Any idea why this error is there? I'm thinking about modifying the permissions on VM folder, can we? knowing that i'm trying to access the VM folder from container share path [example: \container_name.........] We are running hyperV2012R2 on nutanix 4.7.1 Thank you, Pierre

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ashwin.ramaswamy
Nutanix Employee
ashwin.ramaswamyNutanix Employee
posted in Nutanix Cloud Clusters (NC2)
Nutanix Clusters on AWS Deployment and User Guide

Nutanix Clusters OverviewNutanix Clusters provides a single platform that can span private and public clouds but operates as a single cloud using Prism Central enabling true hybrid cloud architecture.Using the same platform on both clouds, Nutanix Clusters on AWS (NCA) reduces the operational complexity of extending, bursting, or migrating your applications and data between clouds. Because Nutanix Clusters runs Nutanix AOS and AHV with the same CLI, UI, and APIs, existing IT processes or third-party integrations that work on-premises continue to work regardless of where they are running. Nutanix Clusters resources are deployed in your cloud provider account, thereby enabling you to use your existing cloud provider relationship, credits, commits, and discounts.Figure. Overview of the Nutanix Enterprise Cloud SoftwareClick to enlarge  Nutanix Clusters place the complete Nutanix hyperconverged infrastructure (HCI) stack directly on a bare-metal instance in Amazon Elastic Compute Cloud (EC

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ashwin.ramaswamy
Nutanix Employee
dlink7
dlink7Moderator
posted in Nutanix Cloud Clusters (NC2)
Getting Started With Clusters Videos

Hi Nutanix Community and fellow lurkers!If your just getting started with AWS, we have made some videos to go along with the documentation to make the process even easier. I would appreciate any feedback on what else should be added based on your own experience.  In the next week we will add a fourth video showing up to setup your VPN on the AWS side.    

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dlink7
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lior_meWayfarer
asked in Nutanix Disaster Recovery
is it possible to retrieve a single snapshot from dr site instead of the entire policy?

when i do retrieve, i can do for the entire snapshot. but the snapshot contains a lot of vms and i only need one. so how can i pull just one?

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Mark Chojnacki
Mark ChojnackiExplorer
asked in AHV Virtualization
Application-consistent VM snapshots for recent versions of RHEL, CentOS, Windows Server

We are looking to do application-consistent snapshots of VMs running recent releases of RHEL, CentOS and Windows Server on AHV. However, the following document indicates that releases such as RHEL 7.4+, CentOS 7.4+ and Windows Server 2019 are not yet supported: Conditions for Application-consistent SnapshotsIs anybody having any issues with application-consistent snapshots for these releases? Some of these OS versions are not even that recent - RHEL 7.4 was released in August of 2017!

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Mark Chojnacki
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Don TeunWayfarer
asked in AHV Virtualization
Windows 2012 on AHV. After reboot it is not able to detect vdisk

Operating System : MS Window 2012 serverHypervisor : AHVIssues :A windows server with the above mentioned OS is running on Nutanix Cluster (AHV). The VM is not able to access via the PE while launch console it show a black screen. However, its still able to RDP into the server and the applications is still be able to access. But after awhile i presume all services went down and the above is not viable anymore. Have to hard reset the VM, after which the virtual machine power up and its not able to detect the virtual disk (the virtual disk is still physically within the cluster). Have to repair the operating system and reinstall the virtio drivers to recover the disk. This happen often, can i check if there are anyone who have experience it and also have a resolution to it. I have did some research online. Seem like its the VirtIO having problem . Will need to install the latest KVMnet drivers but i do not if this actually applies on AHV (as its based out on KVM) . Appreicate any inputs

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Neel Kotak
Nutanix Employee
Alona
Nutanix Employee
AlonaNutanix Employee
posted in Nutanix Cloud Clusters (NC2)
Security in the Cloud - Flow Security Central

Flow Security Central (FSC) is a SaaS product that detects and analyses security vulnerabilities in near real-time across multiple cloud environments. FSC supports the following capabilities.Visibility into Security Compliance: FSC provides businesses with a security heat map and complete visibility into the security posture of their environment using more than 800 automated audit checks based on the industry's best practices. Optimization of Security Compliance: FSC provides cloud operators with a one-click feature to easily fix their security issues. FSC also provides out-of-the-box security policies to automate the checks for common regulatory compliance policies, such as HIPAA, PCI-DSS, CIS, and so on. Control over Security Compliance: FSC helps you to set policies that continuously detect security vulnerabilities in real-time and automate the actions needed to fix them. You can also create your custom audit checks in FSC to meet your business-specific security compliance needs. Fo

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Alona
Nutanix Employee
A
angeessanAdventurer
asked in AHV Virtualization
Virtual Machines automatic restart on AHV

Hello All, I have 01 NX-1065-G6 block including 3 nodes. AOS Version : 5.10.5 AHV Version : 20170830.279 After a power outage, I would like virtual machines to start automatically in a predefined order; for instance, domain controller first, Exchange server secondly, and so forth... With ESXi I can do this in a very simply manner. How to do this with AHV ? Please help. Thanks.

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Peter_1966Voyager
asked in AHV Virtualization
dedicated CPU allocation

Hi, I'm a little bit new a Nutanix, however since last summer I can handle it very well Now I got a question wich I want to share here. I have to prepare a windows server. The requirments of the software wich will be hosted on this server preverene dedicated CPU and memory. So is this in the nutanix (AHV) installation posible to create a VM with his own dedicated CPU's (6cores) and memory?   Regards Peter

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maaz
Nutanix Employee
maazNutanix Employee
posted in Nutanix Cloud Clusters (NC2)
Introduction to Nutanix Clusters on AWS

Nutanix Clusters provides a single platform that can span private and public clouds but operates as a single cloud using Prism Central enabling true hybrid cloud architecture. Nutanix Clusters provides on-prem workloads, a home in the cloud, offering native access to available AWS services without requiring you to reconfigure your software.You use the Nutanix Clusters console to deploy a cluster in a VPC in AWS, and not Foundation. After you launch a Nutanix cluster in AWS by using Nutanix Clusters, you can operate the cluster in the same manner as you operate your on-prem Nutanix cluster with no change in nCLI, the Prism Element and Prism Central web console, and APIs. You use the Nutanix Clusters console to create, hibernate, resume, update, and delete your Nutanix cluster. Following are the key points for running Nutanix cluster on AWSRuns on the EC2 bare metal instances.following EC2 bare metal instances: z1d.metal m5d.metal i3.metal i3en.metal Nutanix Clusters stack in AWS i

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maaz
Nutanix Employee
C
ColemanAdventurer
asked in Nutanix Disaster Recovery
Storage Containers vs. vStores

While learning AHV I’m a bit confused on a few things as it relates to vStores and Remote Sites. What is the purpose of a vStore and how do they differ from Containers? What are the implications of mapping a Site-A’s vStore (Container-A) to Site-B’s vStore (Container-B) that has running VMs in it? What are the implications of not including all VMs from within Site-A’s Container-A in a Protection Domain and failing-over said PD to Site-B?      - Will the unprotected VMs from Container-A continue to run in Site-A?      - What happens when I fail-back the PD to Site-A? Let’s say I’ve mapped Container-A (Site-A) to Container-B (Site-B). If I create a Protection Domain that contains VMs from Container-A2 (Site-A), how does this factor into my vStore mappings between sites? Thanks for the assist!

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EUSCADAAdventurer
asked in Nutanix Disaster Recovery
"VMWare Workstation" equivalent?

Hi all We recently converted one of our environments to AHV/Acropolis from ESX/VCenter. All is well and runs just fine. One of the caveats is, we have a tertiary machine we use in “disaster” type scenarios and with this machine we would use our backup solution to “backup” a VM to and run with VMWare Workstation. As I understand it, Nutanix does not offer a “Workstation” type solution, so I am reaching out to hopefully receive some feedback on what a “new” solution would entail. Could I build a small PC and run Community edition on it? Can communtiy edition run on say an i9/32gb RAM/1TB ssd or does it need N+1 to function? This way I could point my backup solution to the new cluster or have my cluster be aware of a NAS solution and ingest the AHV VM as needed in these type scenarios. Any feedback will help me in the endeavor!

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rohan.saksena-55595
Nutanix Employee
rohan.saksena-55595Nutanix Employee
posted in Nutanix Cloud Clusters (NC2)
Nutanix Clusters and Licensing

Licensing is an important and integral part of Nutanix Clusters. All Nutanix Software Products does not require a license. Nutanix provides these products and their features without requiring you to do anything license-wise:Nutanix AHV Karbon (enabled through Prism Central) Prism Central (Prism Pro, however, requires a license for its advanced features, but you can manage registered Prism Element clusters with the base Prism Central software) Framework and utility software such as Life Cycle Manager (LCM), X-Ray, and Move FoundationViewing License Status: The most current information about your licenses is available from the Prism Element or Prism Central web console. It is also available at the Nutanix Support Portal from the Products link. You can view information about license levels, expiration dates, and any free license inventory (that is, unassigned available licenses)Displaying License Features and DetailsRequirements and Considerations for LicensingLicensing Guide

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rohan.saksena-55595
Nutanix Employee
rohan.saksena-55595
Nutanix Employee
rohan.saksena-55595Nutanix Employee
posted in Nutanix Cloud Clusters (NC2)
Nutanix Clusters on AWS

Nutanix Clusters deliver a hybrid multi-cloud platform addressing the need of a single platform, that can span private, distributed, and public clouds. This will help in managing traditional and modern applications using a Consistent Cloud Platform.Nutanix Clusters has features like:Operational Simplicity Seamless Application Mobility Cost EfficiencyThe above features help to run applications in private or multiple public clouds and reduce the operational complexity of migrating, extending, or bursting your applications and data between clouds.Nutanix Clusters extends the simplicity and ease of use of Nutanix Hyper-Converged Infrastructure (HCI) software, as well as the full Nutanix stack to public clouds such as AWS.We can Modify, Update Display, Hibernate, Resume or Delete Nutanix clusters running on AWS by using the Nutanix Clusters console.Release NotesKnown Issues

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rohan.saksena-55595
Nutanix Employee
H
HenriqueSteppanAdventurer
asked in Nutanix Disaster Recovery
Constant error "Please unprotect VMs from vstore(s) before snapshotting this vstore."

Hello! I’m pretty new to this Nutanix world. Have been dealing with standard server+storage for more than a decade. We have 2 clusters here, with 3 nodes in each site with metro availability. There are 3 protection domains active in each site (active) that are replicated to the other site (passive) and vice-versa.    Site1: Node1 - Node3 - Node5 PDs site1 (active): PROD_001, DEV_001, INFRA_001 PDs site1 (passive): PROD_002, DEV_002, INFRA_002   Site2: Node2 - Node4 - Node6 PDs site2 (active): PROD_002, DEV_002, INFRA_002 PDs site2 (passive): PROD_001, DEV_001, INFRA_001   In vCenter cluster configuration we obviously have affinity rules for VMs/Hosts in site1 and VMs/Hosts in site2, preventing the VMs running in “odd” nodes from being stored in “even” nodes. Sometimes we have to migrate VMs from one site to another. So we do a complete vmotion (compute and storage). After the migration, we start to constantly receive alerts with this message: Snapshot status for vstore INFRA_001: Faile

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Sergei Ivanov
Nutanix Employee
VMwarer
VMwarerAdventurer
asked in Nutanix Disaster Recovery
Snapshot within stun time

Hi Cloud builderWhile I was reading the NTNX Bible they said that the VM snapshot being taked by freezing the VM, unlikely with ESXi where the VM is stunned » Delta created for I/Os and then VMDK is consolidatedMy question while on NTNX Platform how/when the I/O takes place while VM is being snapshot’ed while its freeze.

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VMwarer
V
Vladimir13Adventurer
asked in AHV Virtualization
VM memory dump creation procedure for Acropolis (VM)

HelloI am interested in the possibility to get a VM memory dump for further analysis (list of processes, sockets, other artifacts). How to do it if using the KVM hypervisor (Acropolis).I need to create a dump on a running VM for analysis. A detailed description of the procedure is required. If I understand correctly, all VMs in Nutanix are kept in the form of files, which files are VM dump files? Оr does Nutanix have a special procedure for creating and downloading a complete dummy file(s) of a virtual machine?OS doesn't matter, it can be anything.Please tell me the information to understand this issue.

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Sergei Ivanov
Nutanix Employee
M
Nutanix Employee
MutahirNutanix Employee
posted in Nutanix Disaster Recovery
Protection Domain Scheduling Options

Today - we will highlight the flexibility Nutanix offers with Protection Domains. You can access Protection Domains via the “Data Protection” Menu option in Prism.DR Basics in Nutanix:The foundation of data protection and disaster recovery in a Nutanix cluster is the concept of snapshots.Snapshots work very similar to VM/vDisk clones - leveraging a "redirect on write" algorithm that marks a snapshotted vDisk as immutable and directing new write operations (block overwrites and new blocks) to a new vDisk.  Read operations reference the correct vDisk blocks based on metadata lookup from the meta-data store.  From the Nutanix Bible - Book of Acropolis - Backup & Disaster RecoveryWhat is a Protection Domain (PD)?* Key Role: Macro group of VMs and/or files to protectDescription: A group of VMs and/or files to be replicated together on a desired schedule.  A PD can protect a full container or you can select individual VMs and/or files.A protection domain is a group of Virtual Machines fo

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