Installation & Configuration

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  • 1,147 Topics
  • 3,127 Replies

1147 Topics

Alona
Nutanix Employee
AlonaNutanix Employee
posted in Installation & Configuration

Remote Syslog Server - Why And How

Any modern environments consist of multiple layers each of which contains multiple components. There are switches and routers, firewalls, physical server, application servers, applications themselves and, of course, users. Each of the components has logs of more than one kind, location and severity. All the components interact with each other directly or indirectly. I am certain you have found yourself in a situation where to establish a root cause you had to inspect logs of more than one entity. Establishing a timeline of events is always easier when the sources of the events’ clocks are synchronised and are located in one central location. While the clocks are handled by the NTP the centralised logs location is a syslog server or in this case a remote syslog server implying that it is separate to the origination of the logs. In addition to the benefits already mentioned, remote syslog server allows to access logs for the systems that are already dead, decommissioned or replaced. Nuta

0
Alona
Nutanix Employee
2 years ago
ashwin.ramaswamy
Nutanix Employee
ashwin.ramaswamyNutanix Employee
posted in Installation & Configuration

Recommendations on Nutanix Volumes

Use the Data Services IP method for external host connectivity to VGs. For backward compatibility, you can upgrade existing environments non disruptively and continue to use MPIO for load balancing and path resiliency. For security, use at least one-way CHAP. Leave ADS enabled. (Enabled is the default setting.) Use multiple disks rather than a single large disk for an application. Consider using a minimum of one disk per Nutanix node to distribute the workload across all nodes in a cluster. Multiple disks per Nutanix node may also improve an application’s performance. For performance-intensive environments, we recommend using between four and eight disks per CVM for a given workload. Use dedicated network interfaces for iSCSI traffic in your hosts. Place hosts that use Nutanix Volumes on the same subnet as the iSCSI data services IP. Use a single subnet (broadcast domain) for iSCSI traffic. Avoid routing between the client initiators and CVM targets. Receive-side sca

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ashwin.ramaswamy
Nutanix Employee
2 years ago
K
KarangDikaTrailblazer
asked in Installation & Configuration

Upgrading Memory in 1 node from 4 Node Cluster

Hi, I have 2 Blocks (2 Nodes each) Cluster. I just added 2 DIMM Memory (2 x 32GB) in 1 of my Node. I put 2 memory on slot P1-DIMMC1 and P1-DIMMF1Before Adding DIMMAfterr Adding DIMMAfter that i ran NCC and shows warning like thisAlert from Nutanix ClusterAm i did something wrong with the steps by steps? Since in PRISM, total memory has been increased and i thought it’s just fine.

4
K
2 years ago
ashwin.ramaswamy
Nutanix Employee
ashwin.ramaswamyNutanix Employee
posted in Installation & Configuration

Objects User Guide

Nutanix Objects OverviewNutanix Objects™ (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. Objects addresses storage-related use cases for backup, and long-term retention and data storage for your cloud-native applications by using standard S3 APIs. You no longer have to introduce an external, separately managed storage solution. Objects is deployed and managed as part of the Nutanix Enterprise Cloud OS.You can manage objects by using Prism Central or the S3-compatible REST APIs after an administrator has authorized the applications and users to access buckets accordingly.For more information on Objects architecture, refer to Nutanix Bible.Usage of ObjectsFollowing are examples of solutions you can implement by using Objects: Backup – You can integrate Objects with the backup applications such as

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ashwin.ramaswamy
Nutanix Employee
2 years ago
D
Didi7Trailblazer
asked in Installation & Configuration

Logical Size of SSD drive 3,84TB ...

Hi everybody,I just found out that 531,82GB can be used from 960GB SSDs in a Nutanix cluster node. Using 1,92TB SSDs offer 1.22TB usable space.What about the 3,84TB SSDs. How much space can be used with these drives?ThanksDidi7

3
Alona
Nutanix Employee
2 years ago
R
Nutanix Employee
rahul.khandalkarNutanix Employee
posted in Installation & Configuration

Pre-requiste for ESXI Upgrade

Pre-requiste for ESXI Upgrade  Need to enable both HA, and DRS https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.avail.doc/GUID-1D8B1384-59A4-41E2-AF05-697FC06D9EF9.html When vSphere HA performs failover and restarts virtual machines on different hosts, its first priority is the immediate availability of all virtual machines. vSphere HA uses the virtual machine's CPU and memory reservation and overhead memory to determine if a host has enough spare capacity to accommodate the virtual machine. After the virtual machines have been restarted, those hosts on which they were powered on might be heavily loaded, while other hosts are comparatively lightly loaded.In a cluster using DRS and vSphere HA with admission control turned on, virtual machines might not be evacuated from hosts entering maintenance mode. You must manually migrate the virtual machines off of the hosts using vMotion. This behavior occurs because of the resources reserved for restarting virtual machines in th

1
R
Nutanix Employee
2 years ago
B
bereketsolomonAdventurer
asked in Installation & Configuration

external storage usage

Hello all, i have nutanix 3460 g7 4 nodes and also have disk and tape drives for backup and archival. to make it short is there any way that i can connect the disks and tape drives to the nodes so that i can make automatc backup and archival? 

1
Chaitrali Deshpande
Nutanix Employee
2 years ago
D
DirkGoorisWayfarer
asked in Installation & Configuration

Installation of ce-2020.09.16.iso results in hdparm error

When installing ce-2020.09.16.iso, I get an error about: hdparmStandardError Failed Command [hdparm -z /dev/sda] with reason [BLKRRPART Device or resource busy]My config is as follows:  - Intel PC (Optiplex 9020)  - USB disk with the .iso to boot from - A single Harddisk to do the installation onThis is reproducable on an Intel-NUC, exact the same issue..Now, I add an additional Harddisk (two HDs and one USB). Note that both HD’s are not carrying any nutanix data, format or whatsoever.  After the boot I get a different error:Phoenix: ISO is already mountedFATAL: Couldn’t find a hypervisor and an AOS installed, please package phoenix with a hypervisor and a AOS.  Please refer to Nutanix support portal for more information about this.My questions:Why do I get an hdparm error in the first place. When adding a disk, apparently to get around the hdparm error, I suppose that the ce-2020.09.16.iso supposed to provide me the hypervisor and all this.Not sure if the hdparm error is related. Furt

1
Chaitrali Deshpande
Nutanix Employee
2 years ago
N
Nutanix Employee
nirmal.ravirajan-57912Nutanix Employee
posted in Installation & Configuration

Create Windows Installation ISO with Built-In VirtIO Drivers

Typically, while deploying a new Windows VM on AHV, the VirtIO driver ISO needs to be mounted to allow the Windows Setup to discover the associated vDisk. Therefore, for each VM that needs to be created, 2 ISOs need to be mounted (the Windows installation ISO and VirtIO ISO).In order to simplify and expedite the deployment process, the VirIO drivers can be injected into the Windows installation ISO to create a single customized ISO.The prerequisites for this process are the following tools/files:PowerShell Windows ADK (Deployment and Imaging Tools Environment) Windows installation ISO Nutanix VirtIO driver package (It is recommended to use the latest version which can be downloaded from Support Portal) Administrative privileges on your Windows workstation.For detailed steps and screenshots regarding this process, please review KB 10290 in the Nutanix Support Portal.

0
N
Nutanix Employee
2 years ago
G
Nutanix Employee
GaretNutanix Employee
posted in Installation & Configuration

Linux VM Modifications Under AHV

Many users will create a Linux VM on their Nutanix AHV cluster using default installation options, then configure and install any appropriate applications or services within the VM, and then move onto other tasks. While this approach is certainly acceptable, many users are unaware that there are additional modifications that can be made to the Linux VM OS which can enhance the performance or the overall functionality of the VM.For example, there are several Linux kernel parameters which can be configured including “vm.overcommit_memory” and “vm.swappiness”. If leveraging iSCSI connectivity, there are several parameters that can be modified within the iscsid.conf file which can increase performance.Regarding disk usage, volume group striping can be employed using LVM to further increase throughput. There are further parameters that can be employed when mounting disks, and accessing disks can be assisted via a max_sector_kb parameter.You can find more information regarding these modifica

0
G
Nutanix Employee
2 years ago
Q
quacksh0tVoyager
asked in Installation & Configuration

Phoenix re-image fails on minimum_reqs.py

minimum_reqs.py The NICs are connected, not sure why its failing. Anyone knows? I have tried with foundation 4.6 and 4.5.4.2 . The Nics are connected an Intel with dell firmware 19.5.12. Existing cluster is running fine with same specs. 

2
Q
2 years ago
R
Ryuji34Voyager
asked in Installation & Configuration

Can Nutanix configure IPv6 addresses?

Hi, I have questions.We are considering whether it can be operated with IPv6 in our IT infrastructure.So,I found that the prism element can be configured with an IPv6 address.　However, I didn't know if components such as Prism central support it. Can Nutanix configure IPv6 addresses?　Does Nutanix support IPv6?

3
R
2 years ago
H
hienleOutrider
asked in Installation & Configuration

Phoenix failed to run on G3 platform

I have an old G3 block that need to be installed for a demo.And after lots of failed tries from Foundation installation, I ended up installing the node manually. But unluckily after creating phoenix iso file for AOS installation and mounting it to the node, an error occurred with message below:“Unable to match system information to layout module”Has someone seen this happened before?  

1
P
2 years ago
Ibinema
Ibinema
asked in Installation & Configuration

CCTV onto SSD instead of HDD

Hello Nutanix CommunityI have a VM that is running CCTV operations. I record multiple video streams in a high resolution and frame rate. Old files get deleted when the space is used up. How can I make sure that the SSDs are not being used for the recording to avoid them to get too many write cycles too fast?Kind regards,Ibinema

2
Sergei Ivanov
Nutanix Employee
2 years ago
N
nrlingamExplorer
asked in Installation & Configuration

Two Node Cluster creation Failed

Two Node Cluster creation Failed  It says Unable to reach SVM Ip’s but SVM Ip’s both ping fine.

1
Sudhir9
2 years ago
M
MoazScout
asked in Installation & Configuration

install and configure hci cluster on r740 servers

Hi,I have 4x r740 servers (sized for vmware vsan) can we install and configure fully functional nutanix based hci cluster for production environment on it?Server specs are given belowDual processorx 18core256gb ram10 g mellanox adaptor1g LOM2X 960GB MIX USE SSD8x 1.2TB 10K HDDALL servers are connected with 10G dell 5000 series switches via sfp modules and cisco 9200 lan gigabit switches 

1
Alona
Nutanix Employee
2 years ago
Alona
Nutanix Employee
AlonaNutanix Employee
posted in Installation & Configuration

Ubuntu Cloud on AHV

Ubuntu Cloud Images are pre-installed disk images that are customized by Ubuntu engineering to provide Ubuntu Certified Images, Openstack, LXD, and other features in public cloud environments.Due to the pre-built image and customization the OS requires specific virtual hardware such as a serial port that AHV does not include by default. When trying to boot a VM on AHV from any of the Ubuntu Cloud images, the boot process stalls after loading the Btrfs module as the hardware is not there.This can be helped by customizing the VM manually using a combination of Prism and aCLI commands or by leveraging API calls.Download Ubuntu cloud image in .img format Upload as Disk to Prism Image Services Create a new VM and attach the disk created in step 2 as Type: "Disk", Operation: "Clone from Image Service", Bus: "SCSI" and for Image select the name of the uploaded image and then click "Add" Select "Custom Script" at bottom of the window (AOS 5.10.6 and later) and in "Type Or Paste Script" paste t

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Alona
Nutanix Employee
2 years ago
H
hyoung hoAdventurer
asked in Installation & Configuration

I want to change the time to the past in cvm.

As we moved the equipment and started the cluster, the cvm time was changed 1 day ahead. allssh '(/usr/bin/crontab -l &&echo "*/1 * * * * bash -lc /home/nutanix/serviceability/bin/fix_time_drift") | /usr/bin/crontab -' do this allsr/bin/crontab -' allsshrgrefs/'allssh grep offset ~/data/logs/gencesis.out================== 192.168.100.15 =================2020-11-26 11:53:19 INFO time_manager_utils.py:49 NTP offset: 32399.235 seconds2020-11-26 11:53:49 INFO time_manager_utils.py:49 NTP offset: 32399.235 seconds2020-11-26 21:14:50 INFO time_manager_utils.py:49 NTP offset: -118793.575 seconds2020-11-26 21:46:22 INFO time_manager_utils.py:49 NTP offset: -118793.583 seconds2020-11-26 21:56:52 INFO time_manager_utils.py:49 NTP offset: -118793.586 seconds2020-11-26 22:07:23 INFO time_manager_utils.py:49 NTP offset: -118793.590 seconds2020-11-26 22:17:54 INFO time_manager_utils.py:49 NTP offset: -118793.591 seconds2020-11-26 22:28:24 INFO time_manager_utils.py:49 NTP offset: -118793.594

3
Sudhir9
2 years ago
H
hyoung hoAdventurer
asked in Installation & Configuration

assign gpu on vm

When you open the console window after assigning the GPU to the vm as Passthrough and turning it on, "guest has not initialized the display" appears.When changing to uefi -> bios legacy, the console screen is displayed. What is the difference and is there a way to do it in uefi environment?

3
Alona
Nutanix Employee
2 years ago
T
TedevilAdventurer
asked in Installation & Configuration

vCenter 7 U1 support

We are currently on vCenter 6.7U3j and looking on my possible upgrade path to vCenter 7 I need to go straight to 7 U1.https://kb.vmware.com/s/article/67077#vCenterServer6.7to7.0Should I wait for 7 U1 support or can I expect Prism/Nutanix and Nutanix Move to play nice with vCenter 7 U1?Looking at release notes for Nutanix Move I see only vCenter 7 for example.https://portal.nutanix.com/page/documents/details?targetId=Release-Notes-Nutanix-Move-v3_6_2:Release-Notes-Nutanix-Move-v3_6_2 

1
Alona
Nutanix Employee
2 years ago
G
Nutanix Employee
GaretNutanix Employee
posted in Installation & Configuration

Scheduling NCC Health Checks

Many users try to periodically execute the NCC health checks as a good offensive tactic against any issues that might appear within their cluster, which is a great idea! However, rather than writing that down as a reminder somewhere or simply trying to remember to do so, many do not realize that this task can be scheduled right from within Prism.The task can be configured to execute as per the following schedules: Every 4 hours Every Day Every Week When choosing the every day or week options, you are also presented options to configure the execution according to a specific time of the day and specific days of the week respectively.What happens with the results when the scheduled NCC checks are executed? An email is sent to the email recipients configured within the Alert Email Configuration settings of the cluster.For more information, including the specific procedures for configuring this feature, please refer to the Scheduling and Automatically Emailing NCC Results section of the

0
G
Nutanix Employee
2 years ago
C
CatalystVoyager
asked in Installation & Configuration

Unable to install nutanix ce in esxi 6.7

Hi I trying to install nutanix community edition (ce-2020.09.16.iso), but eding with an error , could you anyone help me to get installed please find the screenshot step by step.Error after acept EULA any help?

2
C
2 years ago
P
pony.zhouAdventurer
asked in Installation & Configuration

Nutanix ce smtp server configure issue

My nutanix ce cluster aos version is 5.18, And configure smtp server has some issues.cvm network is ok !  

2
P
2 years ago
B
bereketsolomonAdventurer
asked in Installation & Configuration

nutanix and commvault integration and installation

Hello All, currently i am working on this project that uses nutanix 4 nodes and commvault as a backup and recovery solution and also have tape disks for archiving, now i have already installed commvault commserv on nutanix as a virtual machine but the trouble i am having is how to configure the storage for commvault and how to integrate the tape library to the nutanix node so that commvault can access it and made archive to it. please any advice and best practice you know will be very help full i am new to this kind of configuration.

2
B
2 years ago
T
Trey577Voyager
asked in Installation & Configuration

Have a customer that has a question, and we are not sure if it can work or not

We have a customer that asks if they can use the serial port to pass data to the VMs and then get that data sent out from the servers? Does anyone know if this can be done with the serial ports for the Nutanix NX-3460-G7

2
T
2 years ago

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