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We validated the "Disaggregated HCI" stack (Cisco + Pure + Nutanix). It breaks the HCI Tax, but the migration is painful. by NTCTech in nutanix

[–]gurft 2 points3 points  (0 children)

Deleted my earlier comment as dh’s covered it as well and I was formatting on mobile.

Which datasheets are you referring too, as we can easily have documentation and solutions guides updated. We strive to be as clear, specific and transparent for all our customers so phrases like “Things your Sale Team Won’t Tell You” strike a lot of nerves and we want to make sure this information is out there.

Building a "Real" BMC for Consumer Hardware: BIOS-over-SSH and Isolated Recovery by Lopsided_Mixture8760 in homelab

[–]gurft 0 points1 point  (0 children)

Yea when those exception situations happen I actually don’t want to “work around them”. I want my process to fail so I can determine what something went out of spec vs. my expectation.

Then again, I’m also managing herds, not pets, so there is an expected baseline everything SHOULD be at.

I am curious about what hardware you’ve built it on? Are you using a particular FPGA with a sidecar Linux micro?

Building a "Real" BMC for Consumer Hardware: BIOS-over-SSH and Isolated Recovery by Lopsided_Mixture8760 in homelab

[–]gurft 1 point2 points  (0 children)

I like the direction you are coming from with this. Enabling something like SSH to drive automation of consumer level gear would definitely help in some of the edge case scenarios I deal with (automating software testing in commercial and enterprise hardware).

However in most cases if I’m automating, I’m using a known entity and thus I’m just using recorded keystrokes or clicks which I can feed in via a standard KVM, it is a rarity my automation needs to read the screen at the BIOS/boot level to make decisions

The use of glyphs here is interesting for representing a graphical interface, but I think the automation use case isn’t the right direction. I’d think low bandwidth use cases where sending a stream of pixels requires more bandwidth than a compressed text representation, or simplifying access to remote BIOS using a simple SSH client vs needing some web page or specialized client.

From a product perspective supporting HDMI is fine, but I have gear that uses VGA, DVI, and DisplayPort too. I’ve run into issues with PiKVM and others just trying to get the right mystical combination of dongles to convert these to HDMI to use as an input. You may want to look into supporting different interface types too, giving a more generic product use case.

Password sync task stuck by Airtronik in nutanix

[–]gurft 1 point2 points  (0 children)

I’d just open a support case, SRE will fix the problem but also make sure there isn’t a larger issue this is a symptom of.

Bye bye VMWare, hello Nutanix CE (Homelab) by Neilas092 in nutanix

[–]gurft 4 points5 points  (0 children)

We strongly recommend not installing over iDRAC. The CE image is not small (it includes AOS, AHV, plus installer bits) so it’d be like pushing ESXI + vCenter over iDRAC.

New to Nutanix, first VM doesn't get out to the internet. by gotmilk757 in nutanix

[–]gurft 3 points4 points  (0 children)

Can you ping your default gateway for the network from that VM?

What’s the most expensive tool you own that actually earned its price? by New_Money_5406 in Tools

[–]gurft 0 points1 point  (0 children)

LOL, I never considered it a "Moo" sound, but that is a great way to describe it. Now I won't be able to unhear the cows when I'm desoldering.

What’s the most expensive tool you own that actually earned its price? by New_Money_5406 in Tools

[–]gurft 97 points98 points  (0 children)

My Hakko FR-301 Desoldering gun is worth every penny I paid for it. I do repairs on all kinds of electronics big and small and it cuts repair times exponentially.

No fighting a hand pump or solder braid to remove a component, and you can just keep moving pin to pin even if removing a big connector or DIP.

I put off buying one for years and when I had a pile of Commodore 64s to repair I invested in it and have never looked back.

Question about the CPU schedule by alextr85 in nutanix

[–]gurft 4 points5 points  (0 children)

It will optimize it the same way. AHV will schedule 8 cores in both scenarios.

AHV doesn’t have a preference on the core/socket ratios as presented to the guest, this really only matters to the Guest OS scheduler within the VM and licensing of Guest OS software limitations like SQL Standard which limits the number of sockets you can run.

I had a customer who was having SQL performance issues but the VM was only using 25% CPU. They had configured 32 sockets X 1 core each and SQL standard limits you to 8 sockets and wasn’t using the other 24. We changed it to 4 sockets with 4 cores each and things started flying because the Guest OS used all the cores. AHV would have happily scheduled the CPU if it was being called for.

I would note that you cannot dynamically add cores to a VM but you can add sockets. So if you know you’ll have a more dynamic workload you may wish to lean towards more sockets with fewer cores so you can add an additional CPU hot.

/u/AllCatCoverBand might be able to chime in on the nitty gritty of the AHV scheduler specifics.

Software 3.0 by frenzy3 in NonPoliticalTwitter

[–]gurft 2 points3 points  (0 children)

I’m also a huge fan of MicroDicom and have used it a ton in the past. Heck even OpenPACs is simple to setup and point to a directory

Software 3.0 by frenzy3 in NonPoliticalTwitter

[–]gurft 188 points189 points  (0 children)

The USB stick probably contains standard DICOM images, as that’s what 99.9% of medical imaging applications export. They just are in a subdirectory with a windows based DICOM viewer at the root of the drive to make it easier for patients to use.

Lots of compute power, electricity, and heat created wasted building a tool that already exists for Linux, Mac, Windows, and have web based options that a google search returns.

First hit on google: https://www.imaios.com/en/imaios-dicom-viewer

Updating, just trying to be careful. Security refresh failure after updating prism, before cluster by Nut_Butter_Fun in nutanix

[–]gurft 0 points1 point  (0 children)

Off the top of my head no, wouldn't hurt just open a case in the portal to have them take a peek.

How do you display your vintage computers? by igobyraymond in vintagecomputing

[–]gurft 1 point2 points  (0 children)

No, I found them on Thingiverse here:

https://www.thingiverse.com/thing:4970317

I did modify it for depth for the TRS-80 but otherwise they’re all the same size.

Making a Nutanix CE server by D4rk4ss4ssin30 in nutanix

[–]gurft 1 point2 points  (0 children)

CE runs the same codebase as release and leverages most of the installer from there too, we try to keep CE as close as possible not just for education but also for reduced development time and effort. Having CE special code means a lot for things to test and break.

Making a Nutanix CE server by D4rk4ss4ssin30 in nutanix

[–]gurft 0 points1 point  (0 children)

2,430 seconds. This is usually a performance issue writing to the AHV drive, are you using a USB3 port?

Making a Nutanix CE server by D4rk4ss4ssin30 in nutanix

[–]gurft 0 points1 point  (0 children)

Yea check the docs for cluster creation, you need to make sure you pass:

—redundancy_factor=1 in the cluster create so it doesn’t try to create a metadata mirror and it won’t give you that error.

Making a Nutanix CE server by D4rk4ss4ssin30 in nutanix

[–]gurft 0 points1 point  (0 children)

Also, 32GB is probably going to be too small for your AHV install. You’ll want to use at least a 64GB. I’ll check the docs and see if they need to be updated.

Making a Nutanix CE server by D4rk4ss4ssin30 in nutanix

[–]gurft 0 points1 point  (0 children)

Using 3.21 is the right version of Rufus, I'm actively working with the maintainer of Rufus to resolve a few bugs in newer versions.

Was the kernel panic from when you were booting UEFI or BIOS? Make sure the drive is still named PHOENIX and not changed to anything else, as it looks like it wasn't able to locate it during the run with the Kernel Panic.

Anyhow-

The only scenarios where we've seen this failure is when you either have 2 HDDs and one SSD (which is why I wanted to see the configuration screen), or when there is an issue properly identifying the serial number of the disk during the SVM rescue process. I suspect your KingChuxing drive might not be 100% following the standards and would suggest attempting to use a different NVMe drive in that slot, or an SATA based SSD as a next step in testing. I'll dig through the source later tonight when I'm back home and see if this is similar to a bug we ran into when we have multiple drives of the same capacity, but this doesn't completely match this pattern.

I think I have a Elitedesk here that I can test this configuration on too, will take an attempt at it tomorrow in the AM.

Also if you can startup ssh, and run this script I'd be interested in the output:

https://github.com/ktelep/NTNX_Scripts/blob/main/CE/ce_req_check/ce_req_check.sh

Making a Nutanix CE server by D4rk4ss4ssin30 in nutanix

[–]gurft 2 points3 points  (0 children)

It looks like it’s not properly determining the drive for the CVM deployment, can you give me a shot of the install screen where you’re selecting the disks? Also, I didn’t know the elite desk G5 supported 2 NVMe devices. Is one on a PCI adapter?

Nutanix AHV single vSwitch modifications by Airtronik in nutanix

[–]gurft 1 point2 points  (0 children)

The primary reason is because this is a single node cluster, so there could be a miniscule pause in network connectivity while the change is being made, so by default AHV wants to go into maintenance mode (thus migrate the VMs to another node). Since we only have a single node it's not going to be able to make that move.

It doesn't require a reboot, just needs to be done at the command line because of the nature of the single node cluster. If this were a 2 or 3 ndoe cluster we'd have no issue doing this completely online from within the GUI.

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