How It works

Below are new knowledge base articles published on the week of April 11-17, 2021.KB 10388 - Alert - A801102 - L2StretchInvalidAncVersion KB 10390 - Alert - A801104 - L2StretchVpnConnectionNotFound KB 10391 - Alert - A801105 - L2StretchRemoteAzUnreachable KB 10392 - Alert - A801106 - L2StretchSubnetNotFound KB 10393 - Alert - A801107 - L2StretchCidrMismatch KB 10394 - Alert - A801108 - L2StretchDhcpPoolOverlap KB 10395 - Alert - A801109 - L2StretchLocalIfConflict KB 10396 - Alert - A801110 - L2StretchRemoteIfConflict KB 10604 - Alert - A801111 - L2StretchIpConflict KB 10718 - NCC Health Check: node_storage_tier_skew_check KB 11034 - How to query the CVM, backplane, host, and IPMI IP address mappings from CVM CLI KB 11063 - How to convert the certificate from PKCS #7 to PEM format if openssl commands fail KB 11091 - "java.lang.NullPointerException" error during update of virtual switch in Prism UI KB 11101 - How to disable Prism Ultimate Trial license in Prism Central KB 11106 - Xi-Frame

Trying to upgrade to a specific version by uploading the metadata and binary of 5.17.1.3. This will make the cluster the same as all the others managed by PC.Currently, the version is 5.15.5.1 LTS.When I attempt to upload, I get this response:Software is not compatible with the current installed AOS version This makes no sense to me in that I don’t care that it isn’t compatible. I’m replacing it with this other version. Is this saying that I can’t go from 5.15.5.1 LTS and that I need to upgrade to a 5.16 before I can upgrade to 5.17? Would 5.16 be compatible?I tried finding the answer in the KB, but couldn’t find it (yet).

Self Service restore (SSR) lets you open and copy a previous version of a file. For SMB, you can use SSR to restore files. Enable or disable SSR through the Prism Web Console SSR for SMB does not restore streams or attributes in directories. Files does not support SSR at the root of distributed shares or exportsFiles take snapshots of the stored cluster data at the share/export level. Self-Service Restore (SSR) exposes these snapshots to the share or export. SSR lets you restore a file from any of the previous snapshots without an administrator. SSR is disabled by default, but you can enable it during or after share or export creation. By default, Files creates a snapshot every hour and retains the most recent 24 snapshots. By default, Files deletes the oldest SSR snapshot after exceeding the retention count for the snapshot type. The snapshot retention count corresponds to the retention period. SSR has the following retention periods: 24 hours of hourly snapshots. 7 days for daily s

Hi everyone,When create Volume Group, I’ll select the allowed source VMs to access my VG either internal VM or external client, the question is in which cases I need to configure Filesystem Whitelists? Thanks in advance.  

The last couple days I have received an error email indicating that snapshot replication to AWS was skipped because a newer snapshot is available. I'm looking at the replication status and I see:Id                        : 15008898    Protection Domain         : Exchange    Replication Operation     : Sending    Start Time                : 04/09/2021 19:49:01 MDT    Remote Site               : *RemoteSite*    Snapshot Id               : 15008893    Aborted                   : false    Paused                    : false    Bytes Completed           : 75.22 MiB (78,870,811 bytes)    Complete Percent          : 3.2552084E-4    Id                        : 14973755    Protection Domain         : ERP    Replication Operation     : Sending    Start Time                : 04/08/2021 18:00:01 MDT    Remote Site               : *remoteSite*    Snapshot Id               : 14973750    Aborted                   : false    Paused                    : false    Bytes Completed           : 1.4 GiB (1,508

Hello, I want to know each usage rate of hosts recommended by Nutanix.(For example, do not exceed 90% of the host's memory.)→ CPU, Memory, Disk Usage rateThis site is an ESXi environment.Is Nutnaix officially documented? Thank you.

Hello Community!! I'd like to discuss an ambiguous issue.There is an 3-nodes Hybrid Storage AHV cluster set to RF2. In this case, each node has 70% storage usage. Each node’s storage capacity is same.Of course, it's 70 percent overall.The data resiliency status is critical.That cluster has enough CPU and memory. The problem comes up from here.If one node goes down, will data rebuild occur?If data rebuilding occurs, the total cluster capacity will be over 95%.That would cause problems with the cluster's IO. Is there anyone who can clearly tell me how the cluster works in the event of a failure in that situation.

Below are new knowledge base articles published on the week of April 4-10, 2021.KB 9952 - NCC Health Check: list_vms_with_qos_attrs KB 10350 - NCC Health Check: rdma_enabled_check KB 10482 - Getting Error Message "You’ve uploaded an invalid cluster summary file" When Licensing a Cluster KB 10668 - NCC Health Check: list_containers_being_converted_to_aes KB 10955 - Create Category in Prism returns "The name you entered is in use" even though the name does not show up in the list of categories KB 11010 - Adding Nutanix Objects as Primary or Secondary Storage with Veritas Enterprise Vault KB 11041 - Nutanix Files share not accessible after performing Nutanix Files upgrade or rebooting File Server VMs KB 11051 - Message "kvm: already loaded the other module" when booting into Phoenix KB 11054 - Expand cluster with node reimaging on AOS 5.19.1 and ESXi 7.0u1 fails KB 11057 - Cluster creation fails on HPE nodes when using generic VMWare ESXi image KB 11059 - Unable to enable HA or HA in crit

I migrated 2 linux servers from Xen Citrix successfully. In the image configuration, can I delete the disk images or if I do that the VM will no longer function.

Now I am studying at Nutanix University. I sometimes see “hot spots” like “eliminate any hot spots” what is exactly means “hot spots”? is it performance of the node or storage degraded? 

Hi,Looking to automate some reports using the Rest API. So far I can successfully pull out CPU, RAM and Physical & Logical storage cluster wide and snapshot details but am unable to calculate the values as shown on the capacity runway when viewing a cluster in PC.. specifically the storage usage figure for ‘snapshots’ and ‘system.Anyone know how these are calculated?Thanks

Hi,Can anyone tell if there is an endpoint in v2 to get stats for VMs? I don’t see it under the VM category. Thanks!

I want to gather data for the following stats metrics using the REST API v2. I understand that I need to put the metrics ID as part of the parameters, is that correct?In addition, can anyone tell me the ID for the following stats metrics?Disk Usage (%) GPU Framebuffer Usage GPU Usage GPU video decoder Usage GPU video encoder usage Memory Usage (%) Network Rx Bytes Network Tx BytesThanks!

I want to use the stats endpoints in the API v2 but the metrics are not documented, how can I get the list of metrics available for each stat endpoint?

Below are new knowledge base articles published on the week of March 28-April 3, 2021.KB 8378 - NCC Health Check: Check Interface Configuration Files KB 10075 - NCC Health Check: ngt_client_cert_expiry_check KB 10743 - NCC Health Check: pulse_enablement_checks KB 10966 - Using storage_container_reference functionality with Nutanix provider for Terraform fails with error "SPEC_INCOMPATIBLE_ERROR" or "INVALID_REQUEST" KB 10980 - Hyper-V VM created in Windows Server 2008 R2 or older may fail to be migrated by Move KB 10998 - NCC ipmi_checksf fail after upgrading ESXi to version 7.0 KB 11018 - LCM-driven AHV upgrade may fail due to missing /bin/bash binary KB 11026 - Fujitsu hardware platform BIOS power setting preventing NVIDIA AHV vGPU driver loading KB 11031 - Agentless Management Service (AMS) version 11.4.0 filling up /tmp on HPE ESXi hostsNote: You may need to log in to the Support Portal to view some of these articles.

What is FLR? What’s the purpose of the /flr endpoint? 

Trying to save Nutanix Bible to read as e-book offline. Can’t print page to PDF as most of grafics can’t save

Hello guys,Is it possible to extend ACI VxLAN to Nutanix AHV OVS (using Opflex agent maybe), in other words can we integrate it to ACI ?

I can ping to AHV from my pc. I can ping to CVM from AHV via address 172.x.x.x  and internal address 192.x.x.x But I Can Ping To CVM From My PC.

Want to know the maximum number of VLAN(802.1q) interfaces than can be created on each bridge of AHV. I cannot find any documentation or matrix about this. Thank you.

Recycle bin feature is available from AOS 5.18 onwards. With help from Nutanix Support, the recycle bin tool helps you to restore deleted storage entities (guest VMs and volume group vDisks) and manage the recycle bin itself.After you delete a guest VM, the configuration file and disk remain in the recycle bin for up to 24 hours. After 24 hours, these files are deleted. The files are deleted in less than 24 hours if your cluster is unable to maintain sufficient free disk space.Recycle Bin Limitations and Guidelines The recycle bin stores vDisk and configuration data for up to 24 hours. After 24 hours, these files are deleted. The files are deleted in less than 24 hours if your cluster is unable to maintain sufficient free disk space. Recycle bin is not supported on storage containers where metro availability is enabled. Recycle bin is not available for recovering protection domain snapshots. You can disable and enable the recycle bin or clear its contents. As a default, the recycle

How do I check hot and cold data by virtual machine? I'm going to migrate the virtual machines of the existing nodes to the node that I'm going to buy new ones. So, I'd like to check the hot and cold data of the virtual machines, respectively.

Below are the top knowledge base articles for the month of March 2021.KB 7503 - NX Hardware [Memory] – G6, G7 platforms - DIMM Error handling and replacement policy KB 4141 - Alert - A1046 - PowerSupplyDown KB 1540 - What to do when /home partition or /home/nutanix directory on a Controller VM is full KB 1113 - HDD/SSD Troubleshooting KB 4409 - LCM: (Life Cycle Manager) Troubleshooting Guide KB 9937 - Alert ID 111066 - Failed to send alert emails KB 4158 - Alert - A1104 - PhysicalDiskBad KB 6945 - How Upgrades Work at Nutanix KB 2090 - AHV host networking KB 2473 - NCC Health Check: cvm_memory_usage_check KB 3784 - Alert - A1030 - StargateTemporarilyDown KB 4519 - NCC Health Check: check_ntp KB 5582 - NCC Health Check: idf_db_to_db_sync_heartbeat_status_check KB 3741 - Nutanix Guest Tools Troubleshooting Guide KB 1863 - NCC Health Check: sufficient_disk_space_check KB 7386 - NCC Health Check: power_supply_check KB 6153 - NCC Health Check: default_password_check and pc_default_password_

We have 3 nodes with 2x960GB SSD and 4x4TB HDD.We need to expand storage (and storage only as it is going to be used to store cold data - we do not need additional processing power or RAM)Question 1: We simply added two 12TB HDDs to each node. Now each node has 2x960GB SSD, 4x4TB HDDs, 2x12TB HDDs. Everything is working fine, but we were told that this is not recommended. What is the problem with this configurationQuestion 2: Assuming the configuration in Q1 is not recommended and we want to end up with each node having one type of HDDs. We were told that we can upgrade the existing 4TB HDDs with 12TB drives. What the right procedure would be:  a) Mark one 4TB drive for removal, remove it, insert 12TB drive in place of removed 4TB drive. Repeat 4 times for a node. Resulting configuration - 6x12TB HDDs per node  b) Add two more 12TB drives first, then mark for removal and remove four 4TB drives (one by one). Resulting configuration - 4x12TB HDDs per node (preferred configuration by us)T

Hardware failures are a part of any datacenter lifecycle. The Nutanix architecture was designed with this inevitability in mind. A cluster can tolerate one or two failures (depending on the replication factor of the cluster or container) of a variety of hardware components while still running guest VMs and responding to commands through the management console. Many of these failures also trigger an alert through that same management console in order to give the administrator a chance to respond to the situation.Nutanix provides the ability to tolerate rack failures for extended data availability, in addition to drive, node, block, and network link failure.Block fault tolerance lets a Nutanix cluster make redundant copies of data and metadata and place the copies on nodes in different blocks.A block is a rack-mountable enclosure that contains one to four Nutanix nodes. All nodes in a block share power supplies, front control panels (ears), backplane, and fans.Nutanix offers block fault