@JaredBusch said in How to Install the Atera RMM Agent on Hyper-V Server 2012 R2:

DISM /online /enable-feature /featurename:NetFx3 /all

i do this all the time on Windows 10, except I include the /source:location of files since it's not on my WSUS system.

@thwr said in storvsp.sys - Hyper V question:

@scottalanmiller said in storvsp.sys - Hyper V question:

@thwr said in storvsp.sys - Hyper V question:

But, TBH, do we have such a List for GNU/Linux, BSD or MacOS?

MacOS, no. Proprietary and gone since the 1990s.
Mac OSX, no. Proprietary and not that documented.

my bad

Linux and BSD, yes, because open source is natively documented by definition.

For the most part, yes. Just a little example: https://www.kernel.org/doc/Documentation/w1/slaves/w1_therm

Could you tell from just looking at this file how exactly a virtual sysfs w1-therm temperature data file or even the virtual file structure looks like for a DS18XXX sensor? I had to try it the hard way, because there was no such documentation a year ago.

That's just one simple example. I know, I could (and probably should) improve that on my own...

Spoiler:

cat /sys/bus/w1/devices/28*/w1_slave 62 01 ff ff 7f ff ff ff 91 : crc=91 YES 62 01 ff ff 7f ff ff ff 91 t=22125

@dafyre said in Windows Server 2016 - Discrete GPU:

I never quite gleaned from the article whether it was you could only pass 1 VM per GPU, or if you could do GPU sharing and let multiple VMs use the same GPU?

I haven't read the entire thing, so I may be mistaken. They were talking about two different modes of GPU pass through. One mode where you have 1GPU to 1VM, and another one where you can share 1GPU with many VM.

Bridging issue solved, kind of a Late-Friday-Problem: Promiscuous mode was turned on, but on the wrong interface - the DMZ facing one.

It worked instantly the second I switched it off on the DMZ and instead turned it on on the target network interface.

How to turn on MAC spoofing / Promiscuous mode on Hyper-V using PowerShell

Get-VM -Name XXXXX | Get-VMNetworkAdapter | Where-Object { $_.MacAddress -eq "XXXXXXXX" } | Set-VMNetworkAdapter -MacAddressSpoofing On

@BBigford said in Hyper-V homework question:

@Kelly said in Hyper-V homework question:

I posted this on that other site, but it appears that you do the teaming inside of Hyper-V, and not in the host OS: http://www.serverwatch.com/server-tutorials/configuring-nic-teaming-for-virtual-machines-with-hyper-v-3.0.html.

As soon as the team is added, connectivity is lost. Can't even get as far as adding the adapter before connectivity is lost.

So... once you create the virtual switch in Hyper-V Manager Virtual Switch Manager, using the NIC Team you created on the Host OS, all connectivity is lost?

At that point, what do the event logs say? Is there some kind of weird MAC conflict? When you look at the connection status of the virtual switch in Control Panel -> Network Connections, what does it look like? Are you getting a 169 address? Is it all 0's? What's actually going on and what does Event Viewer say?

@KOOLER said in The SMB Two Server Dilema, What to Do:

@whizzard said in The SMB Two Server Dilema, What to Do:

In scenarios such as these what would be the recommended backup approach: DAS, NAS, Backup Appliance, lower end server, removable disk storage, tapes (intentionally left out cloud)?

Should be separate (physically!) entity non-related to your production cluster. Cheap NAS is OK.

For the average scenario (and I really just mean average) it's Synology or ReadyNAS that I recommend. Easy, supported, cost effective, desktop or rackmount options, well known, good brands, nice features.

And patch management and software updates are taken care of for you.

@r0dISK said in I did a thing, have a quick Linux question:

22TB ? mdadm + RAID6...

That's a lot to have under RAID 6, but for a home lab is fine.

The Linux system gets the use 99% of the time and needs priority as to performance and what not. The Windows install is just for gaming and is not even my main gaming machine. Just a secondary one. And I've lived with zero Windows access for most of a year, not a big deal.

@coliver I know, I wasn't even included in the conversation at the time when we migrated to O365, and I wasn't included in the conversation when they setup Hyper-V.

Nor was I included when they built this VM, or the other reporting VM on Hyper-V to which 16GB of memory and 2 cores assigned to it...

#SweepItLikeAJanitor

@JaredBusch said in NIC teaming on Hyper-V:

Then you make you vSwitch. If you already have your vSwitch setup, make a team with the ports NOT on the vSwitch, move the vSwitch to the team and then add the final NIC to the team.

Not much to add here. SwitchIndependent mode is a big one on Hyper-V. Sure, Windows can easily use LACP and other means, but what if you want to use two or more uplink switches for redundancy? LACP can't handle this and there is just a handful of proprietary protocols that can. SwitchIndependent mode is doing exactly this by "load balancing" VMs and Host traffic between the available links and failover in case something goes south.

This way, like @JaredBusch said above, you can have LACP-like functionality (max single port speed for a single traffic source) over multiple inexpensive switches. In fact, the switch doesn't know anything about that type of teaming, you could even use unmanaged switches (but really, don't do that)

My hosts are running in this mode.

Question: have you tried setting up the DHCP server as the time master, and having the Centos system sync time to the DHCP server (with said DHCP server syncing to NIST or whatever time source you prefer) instead of the NTP Pool? That way theoretically DHCP server and Centos should be at the same time. Just a thought.

Looks great !!

Thanks for the doc.

@Dashrender said:

I agree that it's nothing more than myself boxing myself into incorrect assumption (something that most of us do) - Hey this is GUI-less, therefore anything that requires GUI interaction (at least for install) won't work.

Many Linux installs (not mine, but many) have the GUI libraries there but no GUI running. Meaning that the code is around but the services don't run. So the attack surface remains small and the CPU and memory are not being used unnecessarily but if you need to fire something up with a GUI, you can.

In the Linux world, we do "minimal" server installs and don't install those libraries. But lots of people go for more bloated installs that have that stuff there.

I only have one VM, it is 2012 R2 on my XS.

If it is a restart of the Hyper-V host, then check the services once it fails to respond like that.

@jt1001001 said:

@dafyre I know on one of my Dell machines I did a new driver that seemed to fix the vmq performance issue; on the other I did just completely shut it off.

I'd be less hesitant to leave it enabled if I could trust it to not cause problems.

In case anyone else runs across this same issue, I got this resolved with a simple command:

dracut --regenerate-all -f && grub2-mkconfig -o /boot/grub2/grub.cfg

After doing this, everything booted up properly.

I then installed hyperv-daemons, rebooted, and everything works great.

@CharlesHTN said in Install Dell OpenManage Server Administrator on Hyper-V Server 2012 R2:

That's why I always change it to "hobbes"!

hahaha, Shaw and Hobbs 😛 but anyway yeah I hear you.

@dafyre said:

Hey Joel,

Have you considered a USB over IP type product? I've just been made aware of them and haven't had a chance to use one yet... but basically it is a USB connection with a Network card, and whatever server you want to use it has to run a software package to do so...

It's worth taking a look at.

Interesting product. What a great idea.