5 Essential Tips for Maximizing Your Experience at Nutanix .NEXT for Bloggers
Hey,Yeah, I had to do this recently because I couldn't use Foundation.Did you generate the Phoenix ISO, including the hypervisor image etc.?You shouldn't land at a prompt, it should boot into an installer.
Mmm yeah, does seem too close to be unrelated.Do other scheduled tasks work OK?
Hi there,That's curious indeed!Do you have the plugin installed on each delivery controller?I wonder if it's not working on one of the controller's that happens to be silently failing the request.Thanks,Kim.
Hello @SantoshBavkar I hope you're well.Please review the following information, hopefully it will map out the process: Prism Central Disaster RecoveryI feel this, whilst a DR process, will be the most logical way forward for you, especially with cross hypervisor.
Hello Jorge,Certainly this information would be held within the task logs or audit logs if needed.It may also be shown under the VM itself events.
Hey This sounds like a scary situation..That third node failing will make for a harder time generally because iirc even changing all containers from RF3 to RF2 will still mean the cluster services are RF3 anyway and last time I checked you couldn't change that config without a rebuild.Are you planning on replacing the failed nodes, maybe you could use the parts from the two failed to make one working to bring back in to protect against the impact of the third failure.I don't know if the system will let you make these changes to the RF on the fly whilst in a failure state but it'd be good to know…I suspect there's too many moving parts here it'd be wise to open a case with support and look at the specifics.
No worries good luck :)
Hey,Sorry for the delay.So first things first a quick how-to on configuring Syslog itself - How to Send Logs to a Remote Syslog ServerCrucially, listed in this KB are also the modules you can configure (copied for ease)ACROPOLIS - The acropolis services are responsible for task scheduling, execution, stat collection, publishing, etc. For more information, see Acropolis Services in the Nutanix Bible. AUDIT - Seeds the "consolidated_audit.log" which is used to track ergon tasks that result in changes to the cluster and UVMs. CASSANDRA - Stores and manages all of the cluster metadata CEREBRO - Responsible for replication and DR capabilities CURATOR - Responsible for managing and distributing tasks throughout the cluster GENESIS - Responsible for any services interactions (start/stop/etc.) as well as the initial configuration PRISM - Management gateway for component and administrators to configure the cluster, monitor the cluster and track logins (successful and unsuccessful) . STARGATE -
Sure no problem I'll prepare some advice for you later when I'm at my computer :)
Eagerly awaiting the next ECSD boot camp last one was cancelled then Mark left for ventures anew...
No worries at all. Let me know if you need any help with the config, we have lots of syslog setup!
Hello,1) under /home/nutanix/data/logs2) loads, many more than you'd ever imagine3) I'd definitely use syslog for this, can be configured within UI/CLI
Ok cool. So if you SSH into esxi on node1 can you run df -hWe need to see if we have some local (non Nutanix) storage at hardware level so we can try to orchestrate testing without cvm/virtual storage.
Can you tell us how the equipment is connected in terms of nics, switches etc.Are you seeing alerts on Prism Element?Can you transfer between esxi hosts directly (boot media to boot media) with speed?Support will be best placed to help here.What hardware is it?
Thanks Jeroen :) One thing to be aware of (I'm burnt from syslog setup) is if you aren't careful you can wipe your config out when moving between PC and PE settings.Let me know if you need a dump of our config process, it works.... (For now!)
Just for completeness, is the default container functioning properly?
I've been deploying some Fujitsu XF8055 nodes this week too. Definitely recommend separating use of the irmc/ipmi and dedicated ports to avoid the blip on boot when you lose it.In the simplest configuration I'd suggest you to have the ipmi and a 10g port into the same switch as your foundation setup to get past this point. Good luck.
Hey, We spent a lot of time with syslog... It is a convoluted mess of documentation and skew between PE and PC but we managed to get there.We have the prism and aplos logs enabled and get good results. I can dig out the specifics if you like.
Hey That's odd, I wouldn't expect this unless it was generating a report every second! What type of configuration do you have in place for your environment summary report schedule?
Hello, Yes absolutely, set your baseline on a ‘good experience’ so you know what has changed if you have a bad experience. The built in thresholds are good worst case scenarios when something is up, but you’d rather know earlier ;)
Hello,Have you checked in the sysprep logs to see what happened?Couple of maybe useful KB links here https://portal.nutanix.com/page/documents/details?targetId=Web-Console-Guide-Prism-v6_5:wc-windows-vm-customize-with-sysprep-clone-vm-wc-t.html https://youtu.be/ONZtzDUcxlI https://portal.nutanix.com/page/documents/details?targetId=Web-Console-Guide-Prism-v5_20:wc-vm-image-customize-wc-c.html
Hello, Foundation port requirements are here https://portal.nutanix.com/page/documents/details?targetId=Port-Reference:Foundation_port_auto_r.html Have a read of the field installation guide here https://portal.nutanix.com/page/documents/details?targetId=Field-Installation-Guide-v5_3:Field-Installation-Guide-v5_3 Network BP here https://portal.nutanix.com/page/documents/solutions/details?targetId=BP-2050-Physical-Networking:BP-2050-Physical-Networking As Moustafa said it is often easier to foundation on a simple flat network before moving to production, though I tend to have to build in production and when using lacp etc I rely on fallback on the switch side to have it both ways.
What is the average level of risk for io bandwidth? When is the risk level of disk IOPS measured? ㅠㅠ This is a very subjective question I'm afraid depending upon workload and hardware.I have some clusters with 70k iops and 1ms latency and some different ones with 5k iops and 3ms latency. Both are happy and working.I'd recommend establishing baselines for your clusters on what is 'normal' for them and investigate deviations from this. I found a noisy VM generating lots of writes pushing up the avg latency this way well before it was a problem.
Hmm, I'm not sure sorry.I wonder if it's worth writing 1.3 on the end for consistency anyway and see if lcm changes at all.Totally guessing now though I'm afraid!
Thank you very much for your reply Can I know the relevant kb or document when I open the case? Are you asking how to open a case ? Or are you asking which KB/document to refer to for hardening?
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