Skip to main content

Deployment Success

Tools and Technologies

3160 Topics
R
rasim9517Voyager
asked in How It works
How many node failures can 5 node RF3 cluster tolerate?

Hello!We have 5 node RF3 cluster. I tried shutting down 2 of 5 node at a time. Cluster stays online, but rebuild never happens. Is it normal? Should 5 node RF3 cluster rebuild after loosing 2 nodes? Can it survive loosing 1 more node after already loosing 2 (only 2 of 5 stays online)? 

10384
R
AlanR17
AlanR17Pathfinder
asked in Installation & Configuration
Combining a mixed hypervisor cluster with mixed hardware

We have a 4 node cluster configured as follows:2 x Lenovo HX1320 (dual 8-core Xeon Silver 4110 CPU @ 2.10 Ghz / 192 GB RAM / 7.11 TB storage) with ESXi2 x Lenovo HX5520-C (single -core Xeon Silver 4110 CPU @ 2.10 Ghz / 64 GB RAM / 35.83 TB) with AHVWe would like to convert the ESXi nodes to AHV.  Looking at the knowledge base and the community it seems like doing this would allow all 4 nodes to share the virtual machine load and because the CPUs are the same we should not have to worry about compatibility issues.  Is this a correct assumption?  Any issues we should watch for?

15783
V
N
Nutanix Employee
NutonianNutanix Employee
posted in Sizer Configuration Estimator
Nutanix Collector Features

What is Nutanix Collector ?It is a desktop application that collects cluster statistics from your VMware or Prism cluster. This output can then be viewed in Nutanix collector or can be downloaded as an Excel file. You can then upload these Excel files into Nutanix Sizer to size and predict future workloads or just to collect statistics on current usage.Nutanix collector enables you to collect data in following methods: You can choose between: Data center/Cluster or All entities registered to vCenter Single Cluster or all entities registered to Prism Central   What you need in order to install:You can install Nutanix collector on your desktop and then connect to either vSphere or Prism to collect statistics. Log in to Nutanix portal and download Nutanix collector desktop application package from Downloads>Essential Tools Install the package on your desktop  What you can see:The Clusters Summary tab displays the configuration details and performance metrics of the clusters includi

43076
N
Nutanix Employee
P
petepAdventurer
posted in How It works
Automating Protection Domain Failover

Hi All, Wondering if anyone has scripted the addition and configuration of nic’s for VM’s that have failed over in a PD? Noticed a few posts from a few years ago but seeing if approach has changed at all. My approach (no script yet): Check which PD’s have become active at remote site to get list of vm’s grab mac and ip info from a mainted csv (plan to use dhcp reservations on dhcp server) Add nic’s with info grabbed from csv Perform some DNS updates Power on Interested to know what others are doing and any feedback on my approach would be appreciated. Thanks! -PeteP

9341
R
Nutanix Employee
AarthiKam
Nutanix Employee
AarthiKamNutanix Employee
posted in How It works
How to configure Prism session timeout and more!

By default, the Prism Central login page includes background animation, and users are logged out automatically after being idle for 15 minutes. You can disable the background animation, change the session timeout for users, and override the session timeout completely.Some points to note:1. This setting is not persistent. In other words, if the Prism service restarts, this setting is lost and must be disabled again.2. Disabling or enabling this setting in Prism Web Console does not propagate to Prism Central or vice versa. The setting must be disabled in Prism Web Console and Prism Central UI separately.3. The timeout interval for an administrator cannot be set for longer than 1 hour. For more information on the details and steps, click here. 

53010
AarthiKam
Nutanix Employee
M
Moises S FAdventurer
asked in Installation & Configuration
Limit or maximum NICs on VM

I wonder if there is any limit on the number of NICs (VLANs) in a guest VM using AHV \ AOS?As well as, what would be the implications of a VM with multiple NICs, for example, over 20 NICs.

29559
P
Eric-The_Viking
Eric-The_VikingTrendsetter
asked in Installation & Configuration
AHV Upgraded to 20170830.395 - Still get Bundle Alert

Hi All An oddity going on here I have upgraded but I still get an alert say the upgrade is available Info : Bundle el6.nutanix.20170830.395 is available for AHV upgrade. My Cluster Version : el7.3-release-euphrates-5.15-stable-4fbdd4d9de331230bb468b3549f530e80ab53bb9 Any ideas how I can correct (if there is a problem) or check what is going on? Thanks Eric

14062
T
Nutanix Employee
S
sk193Scout
asked in How It works
How do we programmatically upload a DISK Image from local pc?

Hello - We created a custom DISK Image and need to automate the upload to Nutanix. Is there a way for us to programatically upload an image using powershell?

8432
TimGaray
ashwin.ramaswamy
Nutanix Employee
ashwin.ramaswamyNutanix Employee
posted in Installation & Configuration
Appendix: Imaging A Node (Phoenix)

Phoenix is an ISO-based installer that you can use to perform the following installation tasks on bare-metal hardware one node at a time: Configuring hypervisor settings, virtual switches, and so on after you install a hypervisor on a replacement host boot disk. This option does not require you to include AOS and hypervisor installers in the Phoenix ISO image. Installing the Controller VM, which runs AOS. This option requires you to include the AOS installer in the Phoenix ISO image. Installing the hypervisor on a new or replacement node. This is an alternative to installing the hypervisor by the use of the hypervisor manufacturer's ISO and reduces the two-step procedure—that of first installing the hypervisor and then installing AOS (by the use of the Phoenix ISO image)—to a single-step procedure of installing both software, at once, by the use of only the Phoenix ISO image. However, this option requires you to include the hypervisor ISO image and the AOS installer files in the Ph

65540
ashwin.ramaswamy
Nutanix Employee
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works
New KB Articles Published on Week Ending August 8, 2020

Below are new knowledge base articles published on the week of August 2-8, 2020.KB 9473 - Alert - A650001 - CollectorSizingViolation KB 9686 - VMware vSphere ESXi hardening for Nutanix clusters. KB 9764 - LCM | Failed to get CVM managed object on ESXi clusters KB 9767 - Alert - A130120 - System has down-migrated the data of flash-mode-enabled vDisks. KB 9800 - Cloud CVM: aplos is down on the Controller VM after upgrading AOS to 5.17.x KB 9816 - SLES 15 gets stuck for 90 seconds after a restore from a snapshot on AHVNote: You may need to log in to the Support Portal to view some of these articles.

2040
Albert Mendoza
Nutanix Employee
N
Nutanix Employee
nirmal.ravirajan-57912Nutanix Employee
posted in How It works
Rolling Reboot for CVM/Hosts

While maintaining your Nutanix environment, there is a need to apply patches to keep everything running smoothly. Some of these patches require reboot of the CVM or Hosts to take effect.For example, rebooting all hosts in a cluster means manually putting the host in maintenance mode, evacuating the VMs, turning off the CVM, rebooting the host, waiting for the CVM and host to boot up, and confirming the cluster data resiliency is OK before proceeding to the next host. As you can see, there is a lot of manual work involved.However, there is a simpler solution: leveraging the rolling reboot script. The script utilizes our shutdown token feature to ensure that the node is up and running before proceeding to the next node. If you are using AHV, the script will be available in Prism. For ESXi hypervisors and for more robust options (even for AHV), there is a command line option found in KB 4723More information about the prerequisites (please read this before using) and execution can be found

89360
N
Nutanix Employee
C
Cristiano.meloniExplorer
asked in Installation & Configuration
Upgrade to vCenter 7.0

I need to upgrade vcenter to 7.0 in my lab, but I can find confirmation that will work with AOS, version 5.15.1.1 LTS.Actual 6.7U3 is installed, and AOS is on ESXI 6.7U3, i can move the hosts later, when will published in the compatibility matrix (dell R640), but I have to upgrade ASAP the vcenter, thanks for the support!

9701
Sergei Ivanov
Nutanix Employee
M
MayurKAdventurer
asked in How It works
Trying to monitor the CPU ready time (hypervisor.cpu_ready_time_ppm)

Hi,I am trying to monitor the CPU ready time (hypervisor.cpu_ready_time_ppm) for the VMs on AHV but the metrics available via the API does not provide this particular metric.The host metrics available via the API areHost_hypervisor_avg_io_latency_usecsHost_hypervisor_avg_read_io_latency_usecsHost_hypervisor_avg_write_io_latency_usecsHost_hypervisor_cpu_usage_ppmHost_hypervisor_io_bandwidth_kbpsHost_hypervisor_memory_usage_ppmHost_hypervisor_num_ioHost_hypervisor_num_iopsHost_hypervisor_num_read_ioHost_hypervisor_num_read_iopsHost_hypervisor_num_received_bytesHost_hypervisor_num_transmitted_bytesHost_hypervisor_num_write_ioHost_hypervisor_num_write_iopsHost_hypervisor_read_io_bandwidth_kbpsHost_hypervisor_timespan_usecsHost_hypervisor_total_io_size_kbytesHost_hypervisor_total_io_time_usecsHost_hypervisor_total_read_io_size_kbytesHost_hypervisor_total_read_io_time_usecsHost_hypervisor_write_io_bandwidth_kbpsHow can I report on this metric?Thanks. 

17756
Alona
Nutanix Employee
Riddhima.singh
Nutanix Employee
Riddhima.singhNutanix Employee
posted in How It works
How to create key based SSH access to a cluster

 key-based SSH access to a cluster is supported. Adding a key through the Prism web console provides key-based access to the cluster, Controller VM, and hypervisor host. Each node employs a public/private key pair, and the cluster is made secure by distributing and using these keys. Users can create a key pair (or multiple key pairs) and add the public keys to enable key-based SSH access. However, when site security requirements do not allow such access, you can remove all public keys to prevent SSH access. To control key-based SSH access to the cluster, do the following: Steps:Click the gear icon in the main menu and then select Cluster Lockdown in the Settings page.The Cluster Lockdown dialog box appears. Enabled public keys (if any) are listed in this window. To disable (or enable) remote login access, uncheck (check) theEnable Remote Login with Password box. Remote login access is enabled by default. To add a new public key, click the New Public Key button and then do the followin

62450
Riddhima.singh
Nutanix Employee
Riddhima.singh
Nutanix Employee
Riddhima.singhNutanix Employee
posted in How It works
How to download a bundle from Portal directly to your CVM

With the introduction of download pages on the Nutanix Support Portal, The download bundle links now come with an expiry time set to them.wget command-line utility to download the bundles directly on to your CVM however chops down the signature files on the download links, this is due to the Download links being too long for wget command line utility.There is method to wget a release bundle from the Nutanix Support Portal directly to a CVM. In order to wget a release bundle on to a CVM/Host, run the below command on the CVM where you wish to download the bundlenutanix@cvm$ wget “url” -O <filename>Note: Filename can be obtained from the Download link as shown in the highlighted text above. wget "http://download.nutanix.com/downloads/ncc/v3.10.0.1/nutanix-ncc-el7.3-release-ncc-3.10.0.1-x86_64-latest-installer.sh?Expires=1595478032&Signature=Rb3R02qRIZZWVaHwAr1N7aj7AXQ3NOYPySn1AyF4H77HzhdxXEcVp7YBEGbd7h-oA~CVgkJWwla-iqGWSw4CAJmrugIhM0iXAUCIW-n0aNAvMbEOxxquRRQcMCwpNuHtSchwkOqZ~wR

8390
Riddhima.singh
Nutanix Employee
AarthiKam
Nutanix Employee
AarthiKamNutanix Employee
posted in How It works
Nutanix SCMA Implementation

The Nutanix platform and all products leverage the Security Configuration Management Automation (SCMA) framework to ensure that services are constantly inspected for variance to the security policy. Nutanix has implemented security configuration management automation (SCMA) to check multiple security entities for both Nutanix storage and AHV.  It continuously assesses and heals Nutanix clusters to ensure that it meets or exceeds all regulatory requirements. In this process over 1,700 security entities are analyzed and self-corrected across storage and hypervisor (AHV only) layers. Nutanix automatically reports log inconsistencies and reverts them to the baseline.With SCMA, you can schedule the Security Technical Implementation Guides (STIG) to run hourly, daily, weekly, or monthly. STIG has the lowest system priority within the virtual storage controller, ensuring that security checks do not interfere with platform performance.To learn more about this feature, click here.

30640
AarthiKam
Nutanix Employee
maaz
Nutanix Employee
maazNutanix Employee
posted in How It works
Logical Networking in Hyper-V

 Networking on a Hyper-V host is very similar to networking on an AHV host and an ESXi host.  Naming of objects is again different, but functionality is the same: Just like with AHV and ESXi, the hypervisor has a connection to both the InternalSwitch and the ExternalSwitch.  The name of the hypervisor on a Hyper-V host is confusingly also Hyper-V, and this hypervisor attaches to virtual switches by way of a vEthernet port.  All virtual network adapters are where the VLANs are defined, and also where the network names are defined.  Hyper-V doesn't have port groups, it has network names which don't work at all the same way that they do in AHV. Verification Commands from Powershell Get-netadaptervmq Get-netadaptervmqQueue   Please refer to this link for detail explanation of Networking in hyper-vhttps://portal.nutanix.com/page/documents/kbs/details?targetId=kA0600000008fOSCAY

3920
maaz
Nutanix Employee
A
AnthonyLombardiAdventurer
asked in Installation & Configuration
Nutanix SQL Shared Storage - Help setting up IPs/Targets

I’m working on building a SQL Cluster on Nutanix using shared storage. Having issues on some of the steps in the ‘Creating a Windows Guest VM Failover Cluster’ walkthrough. (https://portal.nutanix.com/page/documents/details/?targetId=Advanced-Admin-AOS-v510:vmm-failover-cluster-create-t.html)   Have (not real values, used for example): SQL01A - 10.100.1.20 SQL01B - 10.100.1.21 Cluster Virtual IP - 10.100.1.10 iSCSI Data Services IP - Not set (blank) SQL01VGroup - Target IQN Prefix here   Status/Completed: I’ve already created a volume group with a few disks for testing. I have NOT attached it to the VMs yet. I’ve enabled MPIO on each of the 2 servers I’ve enabled iSCSI Devices in the Multipaths tab   Where I’m stuck is the next portion on the Microsoft iSCSI Initiator/Target Portal IP portion. The guide is not very clear on what I should be doing.    From the Guide: From the Server Manager, add and enable the Multipath I/O feature in Tools > MPIO. Add support for iSCSI devices by ch

196011
aluciani
A
adoyleAdventurer
posted in How It works
How to send basic messages into Microsoft Teams channel

So I recently asked this question…  https://next.nutanix.com/api-31/playbook-rest-api-post-teams-37756?postid=51764#post51764 I saw support for slack but no teams… I got to looking and sure enough API’s are available to call from within playbooks yipee!    Youll need to create an incoming web-hook in teams (google this if you dont have it setup).  open up a team channel, click connectors  select configuregive it a name, upload an image and hit createOnce you do that you now have a url which an be used to post messages to via script or whatever your flavor is.    In nutanix heres what i set   Prism Central    set a custom alert policy to 5-10% cpu so it would trigger a lot and selected my test vm   Result: niceeeeeObviously this is my very fist time attempting this and I literally just figured it out but in the near future Id like to see if I can call the alert parameters, include useful information automatically e.g only alert on critical, and include the alert info. Ch

563911
aluciani
N
Nutanix_User2020Scout
asked in How It works
Combining two nutanix blocks

We are looking to combine our two nutanix blocks together.we currently have the NX-3360-G6 and the NX-1365-G6. if this possible to achieve, do we have have to double up on the redundant connections per node? this would mean it would be occupying 12 sfp+ connections all together. can anybody shed some light or experience on this?

7111
P
C
Chandan KumarAdventurer
asked in How It works
How to create ticket with Nutanix for IBM Power Node

Dear Team, I purchased 3 node IBM Power node running with AOS.Once i am trying to create ticket with Nutanix they said raise ticket with IBM vendor but i couldn’t understand if the Issue with AHV then why i should log ticket with IBM?IBM vendor Only responsible for hardware issue.Please suggest anyone how to register the ticket IN kuwait region if customer having IBM power Node with nutanix native AHV.

6336
R
Nutanix Employee
A
aleorlVoyager
asked in How It works
2 all-SSD + 5 SSD+NVMe nodes in RF3 cluster - recommended?

Hi team,We have a 5 node SSD+NVMe cluster with RF3 and are considering adding 2 all-SSD nodes to that cluster.Are there any drawbacks/risks/restrictions to having only 2 nodes of all-SSD type in this RF3 cluster?SSD+NVMe nodes:  G7, 6256 CPU, 1TB RAM, 4x1,92TB SSD, 4x3,84TB NVMeAll-SSD nodes: G6, 6128 CPU, 768GB RAM, , 6x3,84TB SSD

12773
P
Alona
Nutanix Employee
AlonaNutanix Employee
posted in How It works
Snapshots - so simple and yet so complicated - FAQ (part 2)

Continuing on the previous post on all things snapshot. A few more questions today:What happens when I delete a snapshot? Do I loose data? R. You loose a recovery point but not the data, regardless, if it is the first snapshot, the snapshot in the middle or the last one in the snapshot tree. Let’s take a look at a few examples: A. You take a snapshot, create a file within the guest OS, take another snapshot and remove that file. Then you delete that snapshot. Whether that snapshot was in the middle of the chain or the first/last one, that file is no longer recoverable. B. You take a snapshot, create a file A, take another snapshot, create file B. You remove the first snapshot. File A is till there. You can no longer recover to the point in time where file had not existed yet however.If I recover a VM from a snapshot what happens if I then delete the snapshot? R. The VM continues to operate just like it used to while the snapshot was still in place. The only difference is that once the

13480
Alona
Nutanix Employee
N
Nutanix Employee
NutonianNutanix Employee
posted in How It works
Cluster Lockdown

​​​​​​Cluster lockdown is the ability to disable password based CVM access and/or only allow key based access to users.Nutanix recommends that access including SSH directly to CVM and hypervisor should be restricted to as few entities as possible. In high security settings, Cluster lockdown can be very appropriate and should be implemented Cluster Lockdown does not effect any cluster communication between its components. Cluster will function as normal.It ultimately boils down to requirements. You can choose the level of security and give access to only a select few when the cluster is in lockdown mode. Below are few helpful links that can help you secure your Nutanix Clusters : KB 1895 - How to create a password-less SSH login to your Nutanix clusterKey Based SSH access to CVMSecurity Guide

50850
N
Nutanix Employee
Sayo
SayoAdventurer
asked in Installation & Configuration
AOS version is different that additional node for expanding cluster

Hi,Ｉ plan expanding cluster to add 3 nodes that model are XC640 and hypervisor is ESXi 6.7 U2.Cluster’s AOS versio is 5.10.6 LTS but additional node’s 5.16STS.I cannot add nodes...Can I anything to do additional nodes?And Do you know how to recreate CVM on new nodes?

29571
Neel Kotak
Nutanix Employee

Badges

Show all badges
Terms & Conditions