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3161 Topics
M
Nutanix Employee
MutahirNutanix Employee
posted in How It works
AHV - vDISK - Part - 1 : where are they stored?

 In some scenarios, we might have a need to find the disks associated with a virtual machine hosted on a Nutanix AHV Cluster. Nutanix offers a distributed storage fabric, which forms a large storage pool across “N” number of nodes. we then create containers for different types of workloads or we can easily use a single container as well.Virtual Machines are created via Prism Management and all vDisks associated with the VMs are hosted on the distributed storage pool. On a Nutanix AOS Cluster, Acropolis service runs across the cluster to manage virtual machine operations and configurations. As both Data & MetaData is distributed across the cluster, we can use the “Acropolis” service on almost any CVM to retrieve virtual machine information running on any node.In order to interact with the Acropolis service, Nutanix offers “acli”. a powerful set of commands for virtual machine operations across your Nutanix cluster.acli offers tab-completion once inside the acli shell or we can execu

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M
Nutanix Employee
P
Pedro ManuelWayfarer
asked in Installation & Configuration
hostd service is not running.

Impact : If hostd service is not running, AOS upgrade will fail. Cause : VMware hostd service may not be running. Resolution : Check hostd status and restart it manually. Node Id : ZM164S021332 Block Id : 16SM13330093 Block Type : NX-1065S Cluster Id : 57606 Cluster Uuid : 00053fb4-2744-267d-0000-00000000e106 Cluster Name : NTX-DETACOOP01 Cluster Version : el7.3-release-euphrates-5.5.3.1-stable-266039dc19600d27bdc4b7134d02d1c7d267cea6 Cluster Ips : 192.168.39.13 192.168.39.14 192.168.39.15 Timestamp : Thu Aug 16 7:29:06 -03 2018

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S
Nutanix Employee
dlira
dliraTrailblazer
posted in How It works
[NIACTOOL] Nutanix invenotry acropolis collector tool ( AHV / ESXi )

Hi, i want to share NIACtool v2.5 Beta. It can be run on windows operating systems, it is possible to obtain a complete infrastructure report detailing the virtual machines created. Supports ESXi and AHV hypervisors. The result is a fully modifiable Excel document. https://github.com/dlira2

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Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works
Top KB Articles for December 2019

Below are the top knowledge base articles for the month of December 2019. KB 4141 - Alert - A1046 - PowerSupplyDown KB 4116 - Alert - A1187, A1188 - ECCErrorsLast1Day, ECCErrorsLast10Days KB 7503 - G6, G7 platforms with BIOS 41.002 -DIMM Error handling and replacement policy KB 1540 - What to do when /home partition or /home/nutanix directory is full KB 4541 - Alert - A101055 - MetadataDiskMountedCheck KB 4494 - NCC Health Check: metadata_mounted_check KB 1113 - HDD/SSD Troubleshooting KB 4158 - Alert - A1104 - PhysicalDiskBad KB 4409 - LCM: (LifeCycle Manager) Troubleshooting Guide KB 2090 - AHV | Host and Guest Networking KB 1888 - NCC Health Check: storage_container_mount_check KB 4188 - Alert - A1050, A1008 - IPMIError KB 4519 - NCC Health Check: check_ntp KB 1507 - Alert IPMI IP address on Controller VM was updated to ... without following the Nutanix IP Reconfiguration procedure, can be misleading KB 3357 - NCC Health Check: ipmi_sel_cecc_check KB 8514 - NCC Health Check: fs_inco

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Albert Mendoza
Nutanix Employee
W
wautTrailblazer
asked in How It works
Witness - multiple two node clusters

Hi All,   Is it possible for a Witness VM to monitor multiple two nodes clusters?   I can’t find any answer on this question.   Thanks in advance.

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M
Nutanix Employee
MutahirNutanix Employee
posted in How It works
Nutanix AOS - ESXi - Intel 82599 and X540 ixgbe Driver upgrade

Nutanix AOS supports multiple hypervisors and supports a variety of hardware components. Nutanix qualifies hardware components to ensure optimal performance and minimal disruption.  Nutanix AOS with ESXi supports Intel’s 10Gb (ixgbe) Ethernet Network Adapters. It is important to ensure that all network related components are working optimally to ensure reliable cluster operations.  If you are running Nutanix AOS with ESXi 5.5 or 6.x and have the following Intel Network Cards installed in your host systems: Intel Ethernet Controllers 82599 and x540 You might receive an NCC alert, pointing to an upgrade required for ixgbe nics or an older firmware detected. This is to ensure optimal networking performance amongst the hosts and to avoid any errors due to NIC driver issues. You can upgrade the firmware for the above Intel NICs (ixgbe) with the following Nutanix KB: Updating the ixgbe Driver Version to the 4.5.1 Release The above KB outlines all the pre and post steps required for a smooth

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M
Nutanix Employee
K
Nutanix Employee
kenNutanix Employee
posted in How It works
Nutanix Support is Awesome

Many customers buy #hci technology from the usual suspects (#nutanix, #vmware, #dell, etc.) without any consideration to what happens when things break. Support becomes REALLY important when your systems are not operating as expected.  Thankfully, they don't have to worry if they bought Nutanix. Hear what #nutanix customers say about our award winning #nps90 #support.    

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K
Nutanix Employee
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works
New KB Articles Published on Week Ending December 28, 2019

Below are new knowledge base articles published on the week of December 22-28, 2019. KB 8755 - CVM degraded on Dell XC 14G hardware with BIOS older than 2.2.11 due to undetected faulty DIMM KB 8762 - Prism home page shows "loading" when browser has adblock extension installed KB 8766 - Pfsense Vm's remain master after failover on AHV hosts KB 8773 - ESXi does not display CDP information on Intel NICs Note: You may need to log in to the Support Portal to view some of these articles.

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Albert Mendoza
Nutanix Employee
J
jitendraAdventurer
asked in How It works
DC DR replication using Protection Domain

  I have AHV cluster at both DC & DR, which has number of VMs being protected with Protection Domain feature. These VMs are being replicated from DC to DR in scheduled manner. Now as a part of DR drill, I need to run these production VMs from DR for period of time and then again make it functional from DC once drill is over. I am concerned over how the delta changes made during drill with VMs at DR will be again replicated back to DC as Protection Domain replication is uni directional (DC to DR) ? Any recommendations ?

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M
Nutanix Employee
A
aurelienstmaxin
asked in Installation & Configuration
dvPortgroup not visible in AOS

Hello, I'm trying to create a File Server. I did this in Prism Element cluster. I have a problem when I had to select the Client Network PortGroup All my dvportgroup are not visible. I can only see the dvportgroup attached to a dvswitch with uplinks assigned. In my vCenter we have a dvswitch with no uplinks assigned. This dvswitch is used by my network sdn solution which transport the client network. Do you see a solution ? thanks

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S
Nutanix Employee
N
NiranjanWayfarer
asked in Installation & Configuration
CRITICAL svm_rescue:633 No suitable SVM boot disk found

Stuck with this error. Please help out.

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S
Nutanix Employee
S
squeakzVoyager
asked in Installation & Configuration
Modify extra flags on VM

I am trying to make changes to the "extra_flags" option on a VM. I have 2 issues. Is there a way to remove and "extra_flag" added to a VM? Also is there a way to specify the CPU model. I see there is a way to do it in KVM, but not sure how it works in Nutanix. I am trying to do nested virtualization, but for some reason nested VMs don't boot due to the xsave/xsaveopt feature it seems. The host is quad SandyBridge CPUs, but it worked when I specified the CPU model as Westmere. Anyone else have this issue or have an idea of how to specify the features passed through?

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Alona
Nutanix Employee
M
markus dengPathfinder
asked in Installation & Configuration
Specify the installation disk

Hello, I have a personal Lenovo Thinkserver, which has a 4 Seagate 2T Disk (3 of them are formed Raid 5) and 3 SSD (256G+128G*2). I don't want to lost my personal data. Is that possible to install the Community Edition on the specified Disk 256G SSD + 1 Seagate 2T HD for testing purpose?

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Alona
Nutanix Employee
M
MelissaAdamsAdventurer
asked in Installation & Configuration
AHV, NX Models and TPM

Good morning - I reviewed a thread on the same topic from 2 years ago. I'm looking to see if TPM on the NX series (with AHV) is now supported. I'm seeing something in the support portal about installing the module on G6 nodes. Can someone confirm this? Thanks!

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Alona
Nutanix Employee
A
angeessanAdventurer
asked in Installation & Configuration
AOS Installation failed with error "because dependencies not met"

Hello All, I tried to install AOS 5.11.2 with foundation 4.5.1 but I faced from some issues. The system consists of 01 Bloc NX-3060-G4 with 04 nodes. The existing AOS version is 5.11.1 and the existing AHV version is 20170830.270.   Please find below all the log output obtained from foundation process : ======================================================================== 20191218 03:02:38 DEBUG Setting state of <ImagingStepValidation(<NodeConfig(172.18.8.34) @2890>) @ef90> from PENDING to RUNNING 20191218 03:02:38 INFO Running <ImagingStepValidation(<NodeConfig(172.18.8.34) @2890>) @ef90> 20191218 03:09:40 DEBUG Cache HIT: key(<function common_validations at 0x380d7d0>_()_{'global_config': <foundation.config_manager.GlobalConfig object at 0x47ce150>}) 20191218 03:09:40 DEBUG Setting state of <ImagingStepValidation(<NodeConfig(172.18.8.34) @2890>) @ef90> from RUNNING to FINISHED 20191218 03:09:40 INFO Completed <ImagingStepValidatio

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S
Nutanix Employee
L
Loopster
asked in Installation & Configuration
iDRAC-9 support for latest SCOM MP

I'm looking to see if iDRAC 9 is supported by the latest Nutanix SCOM MP for Dell EMC XC Series.

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Alona
Nutanix Employee
I
ihabibullinVoyager
asked in How It works
Deduplication function works inadequately

code:Hello.My English is bad, so I use Google Translate and in advance I ask you to treat with understanding the semantic distortion.The problem is that we have deployed the ion electronic document turnover system (DV) on our Nutanix for testing. To test performance DV, they began to fill DV with a large number of copies of several files:File Quantity Sizefile1.pdf 1699713 314KB (321,942 bytes)file2.png 998001 203KB (208,689 bytes)file3.pdf 1138988 389KB (398 354 bytes)file4.pdf 1007002 504KB (516,306 bytes)file5.tiff 2271889 571KB (584,872 bytes)The mechanism of operation is as follows: the script records the file across the DV database. In this case, the database creates a record and writes the file to the SMB shared folder on another server. The server with the SMB shared folder is also implemented on Nutanix as a virtual machine.Total uploaded 2.6TiB with the specified set of files, and the deduplication ratio on the 1: 1 disk saved 12.8GiB. In my opinion, this is the inadequate wo

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Alona
Nutanix Employee
Alona
Nutanix Employee
AlonaNutanix Employee
posted in Installation & Configuration
VM NIC modes: access and trunk

By default, a virtual NIC on a guest VM operates in access mode. In this mode, the virtual NIC can send and receive traffic only over its own VLAN, which is the VLAN of the virtual network to which it is connected. A virtual NIC in trunk mode can send and receive traffic over any number of VLANs in addition to its own VLAN. You can trunk specific VLANs or trunk all VLANs. You can also convert a virtual NIC from the trunk mode to the access mode, in which case the virtual NIC reverts to sending and receiving traffic only over its own VLAN.   Trunked NIC can only be added via acli. It is not possible to distinguish between Access and Trunked NIC modes in Prism UI. You can create new NIC for the VM to operate in a required mode or you can change the mode of an existing VM NIC. For the command list and sequence please rerfer to AHV Administration Guide: Configuring a Virtual NIC to Operate in Access or Trunk Mode

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Alona
Nutanix Employee
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works
New KB Articles Published on Week Ending December 21, 2019

Below are new knowledge base articles published on the week of December 15-21, 2019. KB 8204 - Alert - A1061 - vDisk Block Map Usage High Critical KB 8284 - Alert - A130151 - Two node cluster state change to KB 8640 - Prism one click upgrade : Preupgrade/Upgrade options not available after manually uploading metadata json and upgrade bundle KB 8743 - Alerts relating to IPMI sensors report that the component cannot be monitored or be permanently damaged. KB 8747 - Anonymous IPMI user Note: You may need to log in to the Support Portal to view some of these articles.

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Albert Mendoza
Nutanix Employee
T
tbailey1Adventurer
asked in How It works
question about allssh command

In scripts we use for some ESXi hypervisor configurations we utilize “allssh”.  The problem I’m running in to, though, is I must run each allssh command individually rather than using a script to run multiple allssh commands.  The first line will kick off and before it has a chance to complete the second will kick off.  For example, here’s where we configure DNS on the hypervisor through a CVM: allssh ssh root@192.168.5.1 esxcli network ip dns server add --server=10.1.1.1 allssh ssh root@192.168.5.1 esxcli network ip dns server remove --server=8.8.8.8 allssh ssh root@192.168.5.1 esxcli network ip dns server add --server=10.1.1.2 The first will kick off then the second goes prior to the first completing.  The script then gets confused and stops while still connected to one of the ESXi hosts.  Does anyone know of a way to initiate subsequent allssh commands only after the prior one running has completed?  Although not very clean, should I put a sleep command in between each?

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perkinsa
Nutanix Employee
M
m.vdohe-64642Voyager
asked in Installation & Configuration
Mount Standby Container to local hosts in Prism (Metro Availability)

Hello everbody, is it correct that the standby containers (Metro Availability) are also mounted to their local hosts in Prism? Thanks for your support! Kind regards,

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aluciani
R
readuni1Explorer
asked in How It works
AFS/Files Powershell Get-NTNXFsShareStat

Hi I can use the command Get-NTNXAllFileServerShares to get a list of all the shares on a file server but how do I use Get-NTNXFsShareStat to get the usage of the share? I assume I need to user New-NTNXObject to build a list metrics but I dont know what metrics are available

20657
Alona
Nutanix Employee
S
Nutanix Employee
Sneha PatekarNutanix Employee
posted in Installation & Configuration
BMC upgrades

Well, we all know how important firmware upgrades are and it is done using our LCM framework. In case of single node clusters, we do have to do our firmware upgrades manually as LCM framework does not work on them.  Here let’s take an example of doing BMC upgrades manually. It is always suggested to do BMC upgrades if any before the BIOS upgrades.  I am attaching a link to a document below that describes the steps to do BMC upgrades manually.  https://portal.nutanix.com/#/page/kbs/details?targetId=kA032000000988sCAA Hope the document is useful information.

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S
Nutanix Employee
W
whhTAZVoyager
asked in Installation & Configuration
Tasks List shows an incomplete task

I recently upgraded my CVMs from 16GB to 32GB. Normally I do this from the CLI but yesterday was curious to see if the command Configure CVM in Prism could handle it. The process ran forever and eventually the progress reached 83%. I came back from lunch (forgetting that I had started that process) and started on resolution of some other NCC check failures. At some point I stopped and started the cluster and it was at that moment that I thought about the CVM memory upgrade task. Prism showed it still at %83 in both Task List and Configure CVM progress bar but the VM view showed all three CVMs at 32GB. So my theory is that I jacked up the running Task List somehow??? Is there a way to "reset" the Task List to get rid of that hung task?

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S
Nutanix Employee
C
CraigtompkinsScout
asked in Installation & Configuration
Adding all flash nodes

We currently have a 48 node hybrid cluster running our Horizon VDI environment with non persistent desktops. The biggest issue is Oulook and OST files. I'm not allowed to turn off cached mode, so I'm redirecting users OST files to network shares. We currently have about 2,600 users and I have those OST files spread across 7 servers. We brought in a consultant with more Nutanix experience than I have and it was suggested that we convert some nodes to all flash, and we would use Affinity Rules to pin these OST file servers to the AF nodes. Makes perfect sense to me based on Nutanix using localization for data. So we have purchased the correct drives to convert 8 nodes to all flash. Storage capacity is going to be almost a wash, I think we are going to drop about 10 TB out of our 200TB logical. I'm in the process of removing the first 4 nodes from the cluster so we can convert them and I got an error from Prism that's very concerning. I know this is a false positive today, but it's e

12151
HITESH0801
Nutanix Employee

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