How It works

Have questions about how the Nutanix Platform works? Looking to get started - start here!

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Albert Mendoza
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Albert Mendoza
started this topic

New KB Articles Published on Week Ending July 22, 2023

Below are new knowledge base articles published on the week of July 16-22, 2023.KB 14262 - Alert - A200614 - FNSVersionMisMatch KB 14552 - P...
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Albert Mendoza
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Albert Mendoza
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Top KB Articles for June 2023

Below are the top knowledge base articles for the month of June 2023.KB 1540 - AOS Only - What to do when /home partition or /home/nutanix d...
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Alona
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Alona
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Help us help you! Assign Support Contact to your Nutanix assets.

We know you care about your infrastructure. Every time and auto support ticket is created for one of Nutanix clusters a Support Engineer con...
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1301 Topics

S
SinghKAdventurer
asked in How It works

Is It Possible to Remove Two Nodes From A Cluster?

I have a Nutanix cluster with 4 hosts and 4 blocks. Is it possible to remove two nodes from Cluster ?

1
Alona
Nutanix Employee
2 years ago
S
Nutanix Employee
sbarabNutanix Employee
posted in How It works

Data Replication page in prism shows "processing" for some or all snapshots even after they are completed

  If you are replicating data through DR (Data Replication page in Prism), then you have setup schedules for snapshots so they can be copied to the remote site on scheduled time. When you select a “snapshot” filed in one of the protection domains you created in the Prism UI, one of the fields is “Reclaimable space”. You may observe an spinning wheel continuously and the word “processing” on this filed for some or all snapshots, but you may also notice that snapshot(s) has already been taken and done.  So why the spinning wheel for this filed? This field is lazy-calculated by Curator during full scans and populated afterward, so it takes sometime (may be few hours) to show up. Until Curator finishes calculating the value, the field shows Processing in Prism.

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S
Nutanix Employee
3 years ago
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
3 years ago
A
AihuaAdventurer
asked in How It works

Nutanix CVM Bandwidth on LACP Netwok

CVM On LACP networks, Physical switches use MLAG technology，CVM bandwidth performance cannot be improved, and the maximum can only be 10Gb. 

8
JeroenTielen
1 year ago
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works

New KB Articles Published on Week Ending June 27, 2020

Below are new knowledge base articles published on the week of June 21-27, 2020. KB 9565 - [Nutanix Objects] Deploy failure due to docker pull issues via proxy KB 9566 - Windows VMs May Lose Network Connectivity With VirtIO 1.1.5 KB 9572 - [Karbon] Cluster deployment fails with error message "CDROM device must have IDE or SATA type adapter". KB 9578 - Hyper-V: SCVMM cannot migrate VM because version on destination host is not compatible 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
3 years ago
A
AntonsExplorer
asked in How It works

Power supply is down on block name

Hello!Need help to understand problem and help. We have 4 nodes. Today saw one node have a problem with the power supply:use this command:ncc health_checks hardware_checks ipmi_checks power_supply_checkResult:1# FAIL: Power supply 1 is down on block block <name>2# FAIL: Power supply 1 is down on block block <name>My next action if physically all fine with PSU.Find in KB7386:Restore the power supply as soon as possible... If PSU info unavailable, upgrade to the latest BMC firmware, and apply factory default after BMC upgrade…If update BMC how long time to need and downtime need?Need help fix this problem, and your help, what steps do next.

1
R
Nutanix Employee
2 years ago
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works

New KB Articles Published on Week Ending October 24, 2020

Below are new knowledge base articles published on the week of October 18-24, 2020.KB 10119 - Alert ID - A130114 - WitnessNotConfigured KB 10120 - Alert ID - A1163 - Volume Group Action Error KB 10134 - File Analytics deployment fails with error: "Cannot connect to File Analytics VM from Prism. Please verify that network details for the VM are correct and the IP is reachable from Prism" KB 10158 - NGT installation fails with the following error message: The system cannot find the file specified. cmd.exe /c net start "Nutanix Self Service Restore Gateway" KB 10166 - Language setting cannot be changed in Prism if logged in as Domain Administrator KB 10179 - Create Image task failed uploading file from URL using FTP protocolNote: You may need to log in to the Support Portal to view some of these articles.

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Albert Mendoza
Nutanix Employee
3 years ago
P
Peter-ZakharevichScout
asked in How It works

Restore AHV VM via API v3

Good afternoon everyone.During the integration with Nutanix AHV, I faced the following case -I need to perform the operation of restoring VM to the snapshot state, my questions are:1. how can I do this with API v3?2. may I restore the state of one VM with the snapshot from another one?What are recommendations and best practices exist to do this with API v3? Thanks.

1
JoseNutanix
Nutanix Employee
2 years ago
T
tony.mcmillanVoyager
asked in How It works

AOS upgrade from 6.0.2.5 to 6.1

We keep our test cluster up-to-date with the latest STS versions.Unfortunately, by doing so, I cannot upgrade from 6.0.2.5 to 6.1 as it is not supported.Upgrading from 6.0.2.4 is supported.I have two questions, one, when will I be able to upgrade to 6.1 from 6.0.2.5?Second, should I lag a version or two behind in the STS track to make sure I am not blocked from taking a major upgrade?Thanks!

3
T
1 year ago
AarthiKam
Nutanix Employee
AarthiKamNutanix Employee
posted in How It works

The clock is ticking!

This article's purpose is to shed some light on the rarely discussed, yet a crucial alert that you may come across on the cluster, that is, the HardwareClockFailure alert. Let us not confuse it with the system time. The system time is maintained by the OS (For example, Linux, Microsoft Windows etc.). The initial value of the system clock is typically retrieved from the real-time clock at power up or is set by the user. The hardware time is maintained by a real clock powered by a battery, which means it will persist a reboot.  The alert is generated when the hardware clock time differs from the system clock time. This check is scheduled to run every 10 minutes, by default.   To learn more about what causes a hardware clock to fail and how to resolve it, head over to this KB article: KB 4120 in the Nutanix Support Portal.

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AarthiKam
Nutanix Employee
3 years ago
HITESH0801
Nutanix Employee
HITESH0801Nutanix Employee
posted in How It works

AHV Networking | Not able to delete a network

Let’s say you are managing an Infrastructure and have a range of networks defined in your environment and now you have to delete a few.You go to Prism, try deleting the network but get a generic error.So what’s going wrong here?Why can’t you delete a network?Well, one possibility is that if there are NIC connected to the network, it won’t let you delete the network, kind of like a guard-rail.So what can you do to mitigate it?Try giving the following KB a read KB-8234 Want to know more about AHV Networking? AHV Networking Best Practices  Still confused about AHV Networking?Drop a comment and let’s start a discussion. 

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HITESH0801
Nutanix Employee
4 years ago
HITESH0801
Nutanix Employee
HITESH0801Nutanix Employee
posted in How It works

Maximum storage utilisation of the cluster.

Data is everything in this modern IT world and we want to have as much storage capacity as possible in our infrastructure. Let’s say you have a new Nutanix cluster and want to know the recommended maximum storage utilisation capacity of the cluster. NOTE :- We should not try to utilise the cluster to it’s peak storage as we need to have sufficient space available in case a node or a disk fails to rebuild the data.   Whenever a disk fails in a Nutanix cluster, the extent groups of that disk needs to copied to another disk to ensure fault tolerance, same goes for a node failure.So how can we calculate the maximum storage utilisation of our cluster and if different scenarios, if we have RF-3 or if we have RF-2? Please go through the KB-1557  to understand the formula to calculate the maximum recommended usage for a cluster.  

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HITESH0801
Nutanix Employee
3 years ago
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works

Top KB Articles for November 2019

Below are the top knowledge base articles for the month of November 2019. KB 4141 - Alert - A1046 - PowerSupplyDown KB 4116 - Alert - A1187, A1188 - ECCErrorsLast1Day, ECCErrorsLast10Days KB 1540 - What to do when /home partition or /home/nutanix directory is full KB 7503 - G6, G7 platforms with BIOS 41.002 -DIMM Error handling and replacement policy KB 4409 - LCM: (LifeCycle Manager) Troubleshooting Guide KB 1113 - HDD/SSD Troubleshooting KB 4541 - Alert - A101055 - MetadataDiskMountedCheck KB 4158 - Alert - A1104 - PhysicalDiskBad KB 2090 - AHV | Host and Guest Networking KB 4519 - NCC Health Check: check_ntp KB 1888 - NCC Health Check: storage_container_mount_check KB 4188 - Alert - A1050, A1008 - IPMIError KB 1507 - Alert IPMI IP address on Controller VM was updated to ... without following the Nutanix IP Reconfiguration procedure, can be misleading KB 4273 - NCC Health Check: aged_third_party_backup_snapshot_check KB 3523 - How to create a Phoenix ISO or AHV ISO from a CVM or Foun

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Albert Mendoza
Nutanix Employee
4 years ago
O
oukaounaExplorer
asked in How It works

Replication Factor of 2

What is the minimum number of nodes needed to configure a Replication Factor of 2 (RF2)?

5
qamarabbas
1 year ago
junsu
junsuTrailblazer
asked in How It works

how to connect guest vm to internet

I want to connect the guest VM to the Internet, what should I consider?

2
junsu
1 year ago
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works

New KB Articles Published on Week Ending May 30, 2020

Below are new knowledge base articles published on the week of May 24-30, 2020. KB 9390 - Alert - A130338 - ServiceBadScore KB 9431 - LCM operation on ESXi hosts fails with "LAG is configured with X uplinks however there are Y NICs added in the teaming policy" Note: You may need to log in to the Support Portal to view some of these articles.

0
Albert Mendoza
Nutanix Employee
3 years ago
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works

Top KB Articles for January 2020

Below are the top knowledge base articles for the month of January 2020. KB 4116 - Alert - A1187, A1188 - ECCErrorsLast1Day, ECCErrorsLast10Days KB 4141 - Alert - A1046 - PowerSupplyDown KB 7503 - G6, G7 platforms with BIOS 41.002 and higher - 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 1113 - HDD/SSD Troubleshooting KB 4158 - Alert - A1104 - PhysicalDiskBad KB 4409 - LCM: (LifeCycle Manager) Troubleshooting Guide KB 2090 - AHV | Host and Guest Networking KB 4188 - Alert - A1050, A1008 - IPMIError KB 1507 - Alert IPMI IP address on Controller VM {CVM-IP} was updated to ... without following the Nutanix IP Reconfiguration procedure, can be misleading KB 4519 - NCC Health Check: check_ntp KB 4494 - NCC Health Check: metadata_mounted_check KB 4705 - Alert - ExternalClientAccessCheck KB 2473 - NCC Health Check: cvm_memory_usage_check KB 8514 - NCC Health Check

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Albert Mendoza
Nutanix Employee
3 years ago
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works

New KB Articles Published on Week Ending July 2, 2022

Below are new knowledge base articles published on the week of June 26-July 2, 2022.KB 13150 - NCC Health Check: cfs_fatal_check KB 13265 - NGT installation fails with 0x80070666 KB 13286 - Hades crashing due to get_hba_class IndexError: list index out of range on NX-8170-G7 with all NVMe passthrough configuration KB 13296 - BIOS updated requirements for PMEM Memory mode on HPDX Platform KB 13300 - NDB | Era - Unable to remove MSSQL AAG DB server cluster KB 13308 - File Analytics - Failed to login to File Analytics console after upgrade with Invalid CredentialsNote: You may need to log in to the Support Portal to view some of these articles.

0
Albert Mendoza
Nutanix Employee
1 year ago
maaz
Nutanix Employee
maazNutanix Employee
posted in How It works

Nutanix Objects

Nutanix Objects is deployed on top of the Nutanix platform, it can take advantage of AOS features like deduplication, compression, replication and more. Nutanix 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 Supported Configurations:The solution is applicable to the configurations below (list may be incomplete, refer to documentation for a fully supported list):Core Use Case(s): Backups Big data/analytics Management interfaces(s): Prism Central (PC) Hypervisor(s): N/A - Runs on Nutanix MSP (Dependent on MSP supported Hypervisors) Upgrades: LCM The figure shows the high-level mapping of the conceptual structure Bucket An organization unit exposed to users and contains the objects (think share to a file on a file server) Object The actual unit (blob) of storage and item interfaced with via the

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maaz
Nutanix Employee
2 years ago
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works

New KB Articles Published on Week Ending February 5, 2022

Below are new knowledge base articles published on the week of January 30-February 5, 2022.KB 12077 - Alert - A130039 - UnqualifiedDisk KB 12248 - Cluster conversion validation failing because of absence of AHV installer image KB 12531 - Era - Alert "Driver exceeded the timeout value of 70 minutes for the execution of the operation" KB 12612 - Managing storage container in Prism Central fails with "Forbidden" error KB 12642 - Zero-Touch Hardware Dispatches KB 12671 - How to enable multi NIC feature for Mongodb in ERA 2.4 KB 12673 - How to enable and disable ERA services KB 12675 - Cannot modify cluster parameters via Cluster Details UI if Cluster Timezone is invalid KB 12677 - DR - Cerebro service may enter a crash loop due to retrieval of snapshots on a Cluster with AOS version 6.0 and higher from a cluster with AOS version below 6.0. KB 12681 - Maximum Node count for Nutanix clusters KB 12682 - Alert - Nutanix Cloud Clusters - AWS - Cluster Creation Failed due to shared subnets KB 12

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Albert Mendoza
Nutanix Employee
1 year ago
E
Enzo0112Voyager
asked in How It works

Using the 1 GbE and 10 GbE simultaneous for uplink

Hi,I just want to ask if its possible to use the 1 GbE interface while using the 10 GbE for back up network in case the 10 GbE switches fails, if its possible how to set it up?

4
Moustafa Hindawi
1 year ago
Albert Mendoza
Nutanix Employee
Albert MendozaNutanix Employee
posted in How It works

New KB Articles Published on Week Ending February 15, 2020

Below are new knowledge base articles published on the week of February 9-15, 2020. KB 5512 - REST API: Alerts data placeholders are not populated KB 8803 - How to change ESXi Host TLS version running on Nutanix cluster KB 8812 - Moving Nutanix nodes to chassis of different generation KB 8855 - How to change Virtual Machine video card memory in AHV KB 8897 - Nutanix Collector "We couldn't find this IP address or host name" KB 8916 - LCM operation may timeout when performing upgrades in ESXi environments KB 8924 - How to map Nutanix Volumes disk from Linux VM to vdisk KB 8942 - karbonctl commands with --pc-username and --pc-password flags fail with 'no consumer: "text/html; charset=iso-8859-1"' error KB 8951 - Alert - A160068 - AFSDuplicateIPDetected KB 8955 - RMA: Return Instructions (APAC) KB 8962 - Unable to browse containers using WinSCP when it contains files name with non-English characters KB 8963 - PRISM displays the wrong speed for the NICs faster than 10G Note: You may need to

0
Albert Mendoza
Nutanix Employee
3 years ago
R
Nutanix Employee
raajiNutanix Employee
posted in How It works

Access and Authentication

 Prism Central (PC) administrators with the "Prism Admin '' role have full access to Karbon and its functionalities. Performing most karbonctl operations requires admin privileges. PC admins that do not have the "Prism Admin '' role (Cluster Admin and Viewer) can only access Karbon to download the kubeconfig and cannot perform any other administrative tasks. See "User Management" in the Prism Web Console Guide for steps on assigning roles.Nutanix requires configuring Karbon users for a directory service in Prism. See Security Management in the Prism Web Console Guide for directions on configuring a directory service.After setting up and testing your cluster, configure role-based access control (RBAC), see Kubernetes documentation for reference. Accessing Locked nodesKarbon protects all nodes in a cluster. You can access nodes in a Kubernetes cluster using an ephemeral certificate, which expires after 24-hours. Perform the following steps to get a certificate. Procedure In the Clusters

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R
Nutanix Employee
2 years ago
A
A College StudentTrailblazer
asked in How It works

Proxy script

Hey guys,I’m new at scripting/coding with python, I am trying to make a script that will automate adding a proxy, proxy whitelist and remove whitelists. This is what I have so far, but whenever it runs I get an error of “Error: Argument 'http-proxy' is specified multiple times.” import subprocessimport sysadd_whitelists = "ncli http-proxy add-to-whitelist target-type=IPV4_ADDRESS target="whitelist_Ip = ["192.168.1.1", "200.200.1.1"]login = "nutanix@192.168.1.50"add_pxy = "ncli http-proxy add name=NPX5-proxy address=proxy.npx5.local port=8080 proxy-types=HTTPS"list_proxy = "ncli http-proxy get-whitelist"#ssh connectionssh = subprocess.Popen(["ssh", "-i .ssh/id_rsa", login], stdin =subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True, bufsize=0)# Send ssh commands to stdinssh.stdin.write(add_pxy)for ip in whitelist_Ip: ssh.stdin.write(a

0
A
3 years ago
C
CyberGTrailblazer
asked in How It works

Versions of all Nutanix components

HiIs there a way to check the versions of all Nutanix components in one view? “ncli cluster info” displays the AOS and NCC versions, but not those of AHV and PC. The AHV and PC versions may be obtained from the PC UI (in different places though). Further, the Nutanix release timeline shows AOS 5.18 as the latest, but the documentation has tags for 5.19?

3
C
2 years ago

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