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@Lennertgenbr Looks like either read rights are failing or drive surface/filesystem issues.

Other than a drawback when comparing the performance of a Storage Spaces mirror using NTFS, against a Storage Spaces mirror using ReFS, there are no issues i've heard of.

If your interested about any kind of stress test, take a look here - https://www.starwindsoftware.com/blog/log-structured-file-systems-microsoft-refs-v2-investigation-part-1

Almost any vSAN works pretty the same way which is just mirroring the data and caches between two or more hosts and keeping those intact. The above mentioned StarWind Free https://www.starwindsoftware.com/starwind-virtual-san-free is a great fit for 2-node deployments since it is capable of running on top of hardware RAID and has some intelligent split-brain protection either over additional Ethernet link or using a witness node. The nice thing is that you still have community support even with free version. XOSAN/GlusterFS is an overkill here (not talking about the performance) and using/supporting DRBD-based scenario looks like shooting in the foot for me unless you are completely familiar with it and know what you are doing.

Here is a nice review https://www.starwindsoftware.com/blog/choosing-ideal-mini-server-for-a-home-lab I found once I was planning my own home lab. The part with LEGO-based rack is just incredible
As for hypervisor I would recommend you to go with Hyper-V first just because it's the simplest and fastest start and after having enough of it to proceed to KVM.

Here is a nice document https://communities.vmware.com/servlet/JiveServlet/previewBody/21181-102-1-28328/vsphere-oversubscription-best-practices[1].pdf that might bring some more light on the question

A separate SAN or NAS for an SMB deployment? It's an overkill. And a SPoF. And a lot of other things. I would go with two clustered servers and DAS in each. Since it's Hyper-V - you can use S2D https://docs.microsoft.com/en-us/windows-server/storage/storage-spaces/storage-spaces-direct-overview to convert DAS into a single shared storage pool for high availability, fault-tolerance and failover. If you are aware that S2D sucks on less than 4 hosts - go with StarWind https://www.starwindsoftware.com/starwind-virtual-san-free (installs directly on bare-metal Hyper-V, works great on only two hosts) that does the same as S2D and is free. VEEAM for backups. That's it

Currently using ZenDesk (over 1 year already) to support my customers (a bunch of different companies). Pretty simple and convenient interface and nice mobile app (i am using the one for android).

Takes me around 50$/per IT guy/per month (4 engineers in total). Alerting, SLAs and most bells and whistles one might need - pretty happy so far.

I've tried Guacamole on CentOS and Debian. Both worked fine, but it was a bare-metal install (not docker). Check Guacamole and Tomcat logs to identify if they are running at all and try to see your connection attempts there. If there is nothing it has to be firewall/connectivity issue.

@IRJ said in New VM keeps turning off:

You might consider setting up some type of monitoring for it temporarily

I've had a similar issue a while ago that was caused by a memory leak in Exchange itself. It kept consuming more and more RAM and at the end of the day crashed the whole VM with a blue screen. It was happening like once a week usually on weekends thus I didn't pay too much attention to the issue since nobody complained. However, it got worth with time so I had to investigate what is actually going on and take measures like adding more ram, defragging the DB and so on.

Drop some monitoring agent inside the Exchange VM like Veeam One Monitor to be able to understand what's going on or choose something from the recommended tools here.