AHV Virtualization

I'm working on openstack, we are connecting client hosts through VPN. How do I debug that openstack running in my local, I tried some links but not successful. In which way I go...?

While attempting to upgrade from v4.7.1 to v5.x.x, the pre-upgrade fails with the following error: "Cluster name must be in FQDN format." Is there a way to upgrade the name from "CLUSTER" to "CLUSTER.domain.com" without downtime? Or, alternatively, is there a way to perform the upgrade without making this change/ingoring this message? Thanks all!

I am considering deploying a hub-spoke architecture with Nutanix Clusters at 1-2 Data Centers with Riverbed SteelFusion Hyper-Converged Appliances at the Regional Offices (To Reduce Server Footprint and Optimize WAN connectivity). Has anyone on the board deployed this solution? If so, please elaborate on your experiences... Appreciatively, Dholling "MacMan"

Hello, We have just migrated our entire infrastructure to Nutanix. We are in the process of moving an old file server to a new windows vm. We are running AHV as the hypervisor and are on 10GB ethernet. I am experiencing slow network transfers between these 2 VM's on the same Nutanix Cluster. So bad that the IOPS dont regiser above 300 in Prism. Any thoughts?

AOS: v4.7.1 Server Platform: Multiple Hyper-V (2012 r2) clusters It appears that if you whitelist an IP that belongs to either a Server 2016 or a Windows 10 machine, that machine still can not access the SMB share being published by our Nutanix (v4.7.1) clusters. We found this out after upgrading our SCVMM server to Server 2016. At this point, the VMM server can 'see' the shares but can not calculate share size (reports 0GB) and therefore can't manage the share(s). Since then we've tested with multiple other 2016 and Windows 10 machines - all with the same result: added to the whitelist but can't browse the share, even from Windows Explorer. We are looking for confirmation that this is a known issue. If so, can you confirm if it's resolved by an upgrade to v5.0.2?

Our CVMs are configured with 32GB of dynamic memory. Start, minimum and max are all set to 32GB. I'm curious to know why Dynamic Memory is enabled on these VMs? Since the CVM's OS isn't fully Hyper-V integrated, we don't see memory demand from the hypervisor (this is the only benefit I see from leaving dynamic memory enabled on a VM with all values set the same). As an explicit downside, since we're using Dynamic Memory on these VMs, we lose the vNUMA featureset (not that a 32GB VM is likely to benefit from it). Thanks!

Hello guys, i am new for nutanix. i have problem with start action hyper-v. I installed on nutanix use Hyper-V, NOS 3.6.1.1. when i created VM and configuration on automatic start action i choosed option "Always start this virtual machine automatically". but that option not function. Can you help me? Thanks.

Nutanix AOS v4.7.5.2 3 x Dell XC430-4's ESXi v6.0 Express Patch 7a vCenter v6.0 Update 3b I have created a VM exactly how I want it. This VM uses Thick Provision, Eager Zeroed. I power it off and start the cloning process. When the cloning process is finished, I check the new VM's disk format and it is always Thin Provision. I have tried cloning with the option Disk Format = Same Format As Source, and Disk Format = Thick Provision, Eager Zeroed. No matter what I choose, the new VM always ends up with a Thin Provision disk. I do have VMs on the system that are Thick Provision, Eager Zeroed. Also, I tried to INFLATE the VMDK file for the newly cloned VM, and while the system seemed to go through the motions, the VMDK file remained the original thin provison size. Any help is appreciated. - Dave dclausse@scgov.net

Is there an option to Pin to SSD in AOS v4.7 with vSphere hypervisor?

Hi, Running 3 node Lenovo HX1310 with AHV 5.01. I will be opening a ticket with Nutanix support. This more of an FYI.... First saw this issue with and SBS 2011 Standard (aka Windows 2008 R2 x64). After migrating from Hyper-V 2012 R2. I was/am having issues where the system would freeze. I first thought it was ShadowProtect backups causing, but then it started happening late at night. I think its the WBengine Service (aka Block Level Backup). I setup a fresh test Windows 2008 R2 with 2 volumes, C: and E:. When I ran chkdsk on the c: drive it gets to the end, stage 3 of 3, and then the VM powers off. I have to start it manually. So I tried it on the E: that has no data is freshly formatted. I run chkdsk, and the VM powers off. Update:Just tried the same chkdsk /f on a Windows 2012R2 server and the same symptoms appear. Thanks in Advance, G

With regards to SQL licencing - how does Nutanix handle the cost per core issue? pertaining to the cost per cpu how does Nutanix solve sql licencing (per core) issue

Hello Everyone! I am using AHV and would like to create a duplicate of my production environment alongside the actual production environment. The point is that we have some highly specialised network software that needs to be tested as though in the actual environment before we actually deploy it there. This software is frequently updated and occasionally an update creates havoc, requiring lots of downtime and restoration of significant portions of the network. So what i am looking for is to have a protected space in AHV that thinks and behaves identically to our production environment (but with no actual interaction with the real network or the internet ... just via AHV consoles.) Thank you in advance for any help you can offer!

What are limitations of different bus type for hard disk i.e. SCSI, PCI, IDE? will there be any performance impact?

Can know impact of SSD failure if each node has 2 SSDs in slot0 & slot1: 1. Slot0 SSD failure 2. Slot1 SSD failure 3. Both SSDs failure (Know this will be CVM failure)

If I add one additional node with 512 GB ram to my existing cluster which consisit of 3 nodes of 256 GB each, how N+1 will be calculated?

Need to know when we say RF2 how many copies of data A will be created? one copy i.e. one primary original data & secondary one. Or one primary orignal data & 2 secondary copies.

How to track progress of vmdk is getting converted to qcow2

Hi all! Is anyone out there running Cloudera in a Nutanix environment? Not just Hadoop, but specifically the Enterprise Cloudera Hadoop implementation. We're in the process of migrating our Production Cloudera cluster to Nutanix VMs and having a host of issues related to disk latency. I'm aware of the Nutanix Hadoop reference documents, but our configuration doesn't quite fit because it started on physical devices, and the existing production configuration would be challenging to change at this point. We're not running YARN yet, still on MapReduce V1, for example, though we're in the process of moving that direction in our dev environment. We have a storage container devoted to our HDFS directories, with virtual disks carved out of it in VMWare, but we're seeing vdisk latencies *averaging* 300ms with frequent spikes to several seconds. Our I/O is very write heavy; Nutanix advised us to disable EC-X, so we did, but no help. We're running RF2 on that container, no deduplication,

Hi,we are running 20 Nutanix Nodes with AOS 5.0.1 and ESXi 6.0 as hypervisor. Normally we using passwordless login to the ESXi host using SSH Keys. So we copy our public key as usual to /etc/ssh/keys-%u/authorized_keys, but after a reboot of the ESXi Host our keys are removed.So I modified the sshd_config on the ESXi host to use multiple authorized_keys- AuthorizedKeysFile /etc/ssh/keys-%u/authorized_keys+ AuthorizedKeysFile /etc/ssh/keys-%u/authorized_keys /etc/ssh/keys-%u/authorized_keys2But even with this config, the authorized_keys2 is also deleted.Can anyone assist me to solve this issue in case of our internal security guidline to use passwordless login.Best regardsMarkus

How do Persistent Reservations work with Hyper-V on Nutanix? I'm asking because with our other "Hyper-V with SMB Storage" clusters, you are not able to use Hyper-V manager on HOST1 to modify VHDs that belong to a VM running on HOST2, as you would expect - Error reads: "Access Denied". However, with Nutanix, we are able to do this and it leads to VHD corrouption upon next reboot of the VM Here is the scenario:[list] Hosts: 5 node Nutanix cluster with Hyper-V (Dell XC hardware) VM1 is running on HOST1 Using HOST2, launch Hyper-V manager (not Failover Cluster Manager). Edit Disk to resize a VHD of VM1. Resize successful (This fails in our non-Nutanix clusters) Using HOST2, check the properties of VM1’s VHD and you will notice that the file size has changed Using HOST1 (where the VM is running), check the properties of the VHD and you will notice that the file size HAS NOT changed Reboot VM1, server will not boot – VHD is now corrupt[/list]Is this a known issue/bug? I understand

Hi all, I just started to write a deployment script for VMs on AHV cloning from a template. Using Sysprep lots of OS Customization is already possible. However, I would like to know if there is a possibility to run a (powershell) script in a Windows 2012 R2 VM on AHV while it has not configured any NIC yet. I know I can easily login via console and start every script I want, but I would like to run it fully automated within my deployment script from my client (for several VMs). Any ideas?

Dear All, Cannot upload image file larger than 5GB via OPENSTACK, stuck at msg " Danger: There was an error submitting the form, Please try again" But when upload via Prism, it is ok. Everyone, have some recommend for this issue? Thanks

Is it ok to install Nutanix Guest Tools in a guest vm template before the template is Sysprepped? I need to deploy a bunch of Server 2008 r2 VMs that will need NGT. I'm aware that it's easy to automate NGT install AFTER vm deployment and I do that for most cases; however on Server 2008 r2 builds there's a techinical limitation that prevents this from working. So I'm wondering if there is anything in NGT that will break if the vm is Sysprepped afterward.

Hi, We just fired up a 3 node cluster HX1310 with AHV. Trying to keep things lean and mean... When a Windows guest needs more CPU, is it "better" to go with more vcores or more vcpu in AHV? I'm asking from a performance perspective and perhaps licensing perspecitve..... Thanks, G

The customer I currently support has a pair of Nutanix clusters running on the Dell PowerEdge XC630-10 harward platform. They have really enjoyed the performance and overall gain (simplicity of the design, reduction in administration/alerts, etc.) since moving to the Nutanix platform. The topic of a server refresh has arisen, and we're beginning to collect all the different metrics we will need to analyze to support this effort. After that's done, though, the planning and designing will begin. In the past, I've used the Nutanix Sizer. That since seems to be locked away behind a Nutanix/Partner Login page now? Does this still exist? Is there one that supports the Dell hardware platform line? Any other workload sizing resources for the theoretical migration planning would be much appreciated. Thanks, in advance!