Fresh installation, several perf questions

[First Middle Last]

My customer grade homelab is there, and so far I am happy with it.

I hit many walls yesterday trying to setup proxmox, but I am happy to not have abandoned.

I still remain with a lot of questions that must be addressed here and there but I think it will be more efficient to ask experienced proxmox users about them:

1. When you create a VM in proxmox, there are many parameters for the CPU, Harddrive, Network: does it affect dramatically the performance? (VirtIO, Writeback, etc)
   
   
2. I don't understand why proxmox created 2 drives during the install (lvm, local-lvm) can anyone explain the difference?
   
   
3. I tried to upload a 63GB vmdk from ESXI but I had not enough space because the drive is split in 2. Is there a way to transfer the vmdk to another drive in my server and convert it for use in proxmox?
   
   
4. The first tutorial I found did not mention I needed to take all details from my old server (CPU, memory, harddrive)
   is there a way to find the info? also I did not touch the parameters (iSCSI etc) is it critical?
   
   
5. Does using several VM on one SSD degrade the performance?
   
   
6. Does logical drive creation improve performance?
   
   
7. Is there any degradation of services when you have virtualization? I have 2 different nics with one having many advanced features but the way it seems to be virtualized looks limited to me.
   
   
8. Is performance drastically improved with PCI passthrough?
   
   
9. vmbr0 is the virtual interface that needs to be bridge to the physical one to access the network?
   
   
10. I read that raid1 is s** compared to ZFS but virtualizing openmediavault or other nas os with ZFS would bring a lot of problems any experience?
    
    
11. I have 2 servers at home with proxmox, what can the "cluster" functionality bring in terms of added value?
    

I'll stop here, I hope someone with experience will stop by and answer them.

Thanks!

 

[dcsapak]

first: did you already read the documentation? ( https://pve.proxmox.com/pve-docs/ or https://your-pve-ip:8006/pve-docs/index.html )
this probably answers most of your questions, also many questions you ask were asked many times in the forum already, please use the search function

if you have any after studying that, please ask

 

[First Middle Last]

Thank you. I obtained a full answers on reddit. I can't share the link yet, but type the same title as the post in the search engine.