5 Essential Tips for Maximizing Your Experience at Nutanix .NEXT for Bloggers
Hi @Liberus That’s probably because the information was moved into a standalone Nutanix Volumes Guide. Take a look!
Hi VELOMANANA,For quotas you can look Nutanix Files User Guide: Quotas. For Qtrees I recommend approaching Nutanix HCI from the perspective or purpose rather than trying to map concepts from different vendors as it does not always work. (Speaking from my own experience that made my mind feel very twisted when I initially attempted to do exactly that.)What are you using Qtrees for? The purpose (what we are trying to achieve by using qtrees) will lead us to the Nutanix concept.
Hi balma01,As you can imagine, there is no set timeframe to write data between the two locations in the storage layer. Per-vDisk OpLog limit is 6GB. We can simplify it terribly and say, we are draining all 6GB (not realistic) for all vDisks at the same time (even less realistic), how long will it take?In real life, it would be chunks of data written to the extent store from the OpLog if the vDisk is idle for some time or when the OpLog is at 85% capacity. Regular curator scans identify chunks that are old enough to be moved to the cold tier and to be processed for EC if it is enabled.Cold data constitutes no write within the past 7 days. That is calculated from the moment the data arrives at the extent store.Let me know if that helped or if you have more questions.
Hi Costel-Valentin,The LCM for dark site is not smart enough yet to do that. Since you’d have to replace Nutanix signature file for each component in the release folder, there can be only one component there at any given time.If it’s any consolation, you can run firmware upgrades using LCM Bundles (read release notes as not absolutely everything is included in the bundle).The software would have to be upgraded piece by piece.I would Set up a Web Server Point LCM to that Web Server (instead of Nutanix) Download and extract the dark site bundle (LCM framework and Foundation should be amongst the first ones). Upgrade LCM itself Repeat for Foundation Repeat for the firmware. Repeat for software.
Hi adnil, I am a little confused by the question. Cloud-init is used during initial VM creation or cloning (again, creation of the VM). You are looking to update VM’s Cloud-init script?Acropolis Command-Line Interface (aCLI): vm.update has a full set of vm.update parameters and cloudinit_userdata_path is not one of them.Take a look at this thread ncli create vm with custom script to pass in cloudinit. Let me know if that helps.
Hi JesseB,I found some internal information on this and you have done everything right and beyond it. You have re-created the schedule and even the report. I’ll include the steps below just in case. But if you think you have done all that and it still doesn’t work could you please open a case with Nutanix Support?Remove the schedule Edit the report. In the upper left corner click ‘Edit Schedule’. At the bottom of the popup click the option to remove the schedule. Save the Report Config. This will stop the report generation from continuing. Set up a Schedule with Playbooks Go to Operations > Playbooks from the hamburger menu. Select Create Playbook. You must first set a trigger - in this case, set a Time Trigger. From the time trigger customization screen - change the radio button to configure a schedule at a recurring interval. Fill in the rest of the details to match the desired schedule frequency. Now you need to add the actions. Click Add action on the left-hand
Hi Kuldeep,Field installation guide should get you through the initial set up (AHV + AOS installation). This should get you to the point where CVMs form the cluster and they are all up and running.For the next step you will need Internet connection, so set up the network side.AHV Networking best practicesAHV Administration Guide: Host Network ManagementFrom there I would use LCM to see if any upgrade is needed for firmware components. This will require Internet connections although there is an option to set up an internal Web server and point LCM to it if you are working on a dark site.LCM GuideOnce everything at the version you want it to be (AHV, AOS, the firmware of the NICs, discs, SATADOM, BMC/BIOS) you can prepare for VMs creation. Prism Web Console Guide covers all about that.Let me know if you have further questions.
Happy to help:) You can keep on asking. I can’t promise I will have answers but I’ll do my best.
Hi Sammy777,This is the right guide (assuming you run ESXi hypervisor).Follow the guide and you will be OK for memory replacement.Take the note of the DIMM serial (old and new) and compare the serial in IPMI after the replacement.Run NCC checks, look at IMPI SEL logs and hardware status after replacement.Only once everything looks good take the node out of maintenance mode. To remove the DIMM you would have to remove DIMMs from both channels so that channels capacity remains symmetrical.Also, check supported memory configurations in the same guide.
Hi Victor,The first URL I included goes over instructions on how to trigger activation. Once you click the button the window below appears for you fill out. If you mean update of the existing AD records to point to the new server, they would need to be updated manually.
Hi Victor,Ah, I see now where exactly your confusion lies. Yes, you are correct.When you think of a FS it’s a cluster of file server VMs consisting of several VMs (1) with NICs (2) and disks (3) communicating to each other, to the CVMs, users and other servers. Out of those three components two are dynamic: NIC configuration and the user data can change. FS VMs OS is static.That means that as long as you have the disks data replicated and the NICs configuration information available you can re-create the FSVM cluster on the DR site.And that’s what happens. The FS VMs do not exist on the DR until you hit the activation button. Then essentially FS VMs are created, cluster is formed, configured with the IP config you provide upon activation and the user data is presented. Once completed you have an FSVM cluster on the DR site.Does that help?
Hi Victor,When you chose to Activate Files Server on a DR site you are prompted to put in IP address ranges, port groups and such which means that you do need to have that information ready and port groups configured, DNS and AD working at the DR before you activate the FS.Nutanix Files User Guide: Activating a File ServerTo enable Files DR you will need to pair sites as part of Data Protection first. For that, the two clusters must be able to communicate via their VIPs. How you choose to achieve (via VPN, stretched VLAN, MPLS, VPLS or even SSH tunnel (not recommended as a primary option)) we leave up to you to choose. There’s more than one way to skin the cat, right?The overview of the process is, you add Remote Site in the Data Protection tab. Add Protection domain for Files (should be created during FS creation). If it is, edit it and add the remote site in there.Arrange networking on the remote site for the FS activation. Activate.I’ll add some documents that I think could be usefu
Glad to hear that Joseph:)
Wow! Great work!
It’s possible that there is an old URL cached. That would have to be resolved by the support engineer as it involves running a cleanup script.Alternatively, find LCM leader with lcm_leader and look for errors in ~/data/logs/catalog.out on the LCM leader.
Hi hail,Could you verify foundation version on all nodes please with this command:nutanix@cvm:$ allssh "cat ~/foundation/foundation_version"
Shot in the dark, can you upgrade NCC? It will effectively restart the process.
Hi @gajh If this is a new node/cluster you would use Foundation in which case the process is automated and you wouldn’t need to select disks. The fact that you have these questions implies that you are using Phoenix but that would mean that you already have a cluster and a node is corrupt?Both hypervisor and the CVM should be installed on the SATADOM/M.2 drive. Well, the CVM will have it’s base "configuration" file for the CVM, as well as a small ISO called svmboot.iso on the SATADOM/M.2.
Hi Joseph,It seems like the deployment task stuck. You can confirm if the task is still with ergon (if the task is not active in Prism):ecli task.listAnd open a case with support please so that they can run a cleanup script to allow for the new deployment task to succeed.
Hi Muhammed,For LACP you would need Switch Dependent mode with LACP setting. We recommend Hyper-V Port load balancing mode as it gives each VM a MAC address. You will need to configure physical switches with LACP to be able to use LACP on the hypervisor side.Microsoft: NIC Teaming settingsMicrosoft: Set-NetLbfoTeam (use Get-NetLbfoTeam to get the NetAdapterName)Also, note that on Hyper-V 2019 LACP is not supported with SET (Switch Embedded Teaming).As per the NICs groupingIPMI Hypervisor and CVM Subnet - 10 G Port 1 and 2 -LACP, externalswitch - created by default Guest VM Subnet - 10 G Port 3 and 4 -LACP - custom switch 0 Guest VM Second Subnet - 1 G Port 1 and 2 Two 10 G Switch Two 1 G SwitchThe way I’d do this is I’d image the cluster with default switch configuration (i.e. one switch externalswitch with all interfaces there).Then evict 1G ports from the aggregate/bond and configure LACP. Test.Then create another switch (custom switch 0) and move the uplinks there. Test both custom
It is both read and write operations that benefit from being written sequentially. When you need to edit a file/data block/etc you need to find it first. Each search operation takes time. Not long by human standards but it does. With randomized data this time is accumulated as the system needs to find and change the data in each of the locations on the disk. The more sensitive the application is to the latency the more noticeable the difference is. When the data is written in sequence the retrieval takes less time. This is true for any system. This why defragmentation (not the same thing but works for a similar reason) improves performance, for example.The difference is especially noticeable when the data is later considered to be cold and migrated to the HDD.All other IOs, including those which can be large (e.g. >64K) will still be handled by the OpLog.Nutanix Bible: I/O Path and Cache
For an older AOS version, you would re-create the NIC or power off and use aCLI to update the NIC see this thread.
Happy to help, Victor.
It is peculiar that they press for a standalone deployment of the Files. I can see how it would be easy to guarantee performance in a mono-environment. I would also understand if they worded it as their recommendation but Nutanix does not insist on deploying Files separately from other workloads. On the contrary, most things are designed to be able to co-exist in the same cluster.
Hi Balram,There is no API to complete the tasks form a PC unfortunately but you can do achieve this from a PE if that’s an option for you. Rest api for creating vm from image services not working
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