Add docs on Proxmox server, remove deprecated truenas doc

Author: mrjones-plip

docs/admins/images/new.iso.png

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+# Proxmox
+
+## Overview
+
+A desktop tower with [Proxmox](https://www.proxmox.com/en/) installed on it was deployed to: 
+
+* Be a future home for all LXD containers on the c220 so the c220 can eventually be retired
+* Host future projects that need a VM at the shop
+* Host 4 x 12TB drives to serve media to the shop LAN
+
+All Proxmox admin is done through the web GUI at [https://proxmox.synshop.net](https://proxmox.synshop.net), which is reverse proxied through the Caddy server to have a valid TLS cert.  The baremetal IP is `10.0.40.16`, but of course the proxmox.synshop.net domain resolves to Caddy at `.29`.
+
+To log into the server, be on the VPN or at the shop, go the [URL](https://proxmox.synshop.net) and use the `proxmox` credentials from the shop password database.
+
+## Install & Hardware
+
+Proxmox was installed with these 7 drives:
+
+* 256GB Apple branded 2.5" SATA SSD: boot drive for prox mox (`/dev/sdc`) . Shows as `local-lvm` or `pve` in Proxmox
+* 256GB NVMe SSD: data volume for all active VMS (`/dev/nvme0n1`). Shows as `local` or `vmdata` in Proxmox.
+* 3TB SATA: Backup drive for all Proxmox data, VMs etc. (`/dev/sde`). Shows as `backups` in Proxmox.
+* 4 x 12TB SATA: TBD use for NAS/Media sharing (`/dev/sda`, `/dev/sdb`, `/dev/sdd` and `/dev/sdf` ). 
+
+Here's the output of `lsblk`:
+
+```shell
+root@proxmox:~# lsblk
+NAME                        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
+sda                           8:0    0  10.9T  0 disk /mnt/nas/ZTN19LH8
+sdb                           8:16   0  10.9T  0 disk /mnt/nas/ZTN1AT71
+sdc                           8:32   0 233.8G  0 disk 
+├─sdc1                        8:33   0  1007K  0 part 
+├─sdc2                        8:34   0     1G  0 part /boot/efi
+└─sdc3                        8:35   0 232.8G  0 part 
+  ├─pve-swap                252:0    0     8G  0 lvm  [SWAP]
+  ├─pve-root                252:1    0  68.2G  0 lvm  /
+  ├─pve-data_tmeta          252:2    0   1.4G  0 lvm  
+  │ └─pve-data-tpool        252:6    0 137.8G  0 lvm  
+  │   ├─pve-data            252:7    0 137.8G  1 lvm  
+  │   └─pve-vz              252:8    0   230G  0 lvm  /mnt/nvme
+  └─pve-data_tdata          252:3    0 137.8G  0 lvm  
+    └─pve-data-tpool        252:6    0 137.8G  0 lvm  
+      ├─pve-data            252:7    0 137.8G  1 lvm  
+      └─pve-vz              252:8    0   230G  0 lvm  /mnt/nvme
+sdd                           8:48   0  10.9T  0 disk /mnt/nas/ZTN1CWZL
+sde                           8:64   1   2.7T  0 disk 
+└─sde1                        8:65   1   2.7T  0 part /mnt/pve/backups
+sdf                           8:80   1  10.9T  0 disk /mnt/nas/ZRT122RV
+nvme0n1                     259:0    0 232.9G  0 disk 
+└─nvme0n1p1                 259:1    0 232.9G  0 part 
+  ├─vmdata-vm--100--disk--0 252:4    0    32G  0 lvm  
+  └─vmdata-vm--101--disk--0 252:5    0    30G  0 lvm  
+```
+
+Within Proxmox, you can see the drives this way:
+
+![Screenshot of drives in the proxmox mox disks page](./images/proxmox.drives.png)
+
+
+## Downloading a new ISO 
+
+To add a new  ISO so that you can create a VM with it later:
+
+1. Navigate to `local` storage on left
+2. Click `ISO Images` in middle
+3. click `Upload` button at top
+4. Enter ISO URL and click `Download`
+
+![Screenshot of adding a new ISO with 4 arrows denoting order of steps](./images/new.iso.png)
+
+## Creating a new VM
+
+1. On the left, Click "Datacenter" and then "Proxmox"
+2. In the upper right click "Create VM"
+3. On the `General` screen leave `Node` and `VM ID` with the default value.  Enter a descriptive, but short name in `Name`.
+4. Check the `Advanced` check box near the bottom and check `Start at boot` box to ensure the VM is booted when ever the system reboots.
+5. Click `Next`
+6. On the `OS` screen, if you're installing from an ISO,  for `Storage` choose `local` and choose the ISO in the `ISO image` drop down.
+7. Leave all other fields with default values and click `Next`
+8. On the `System` screen, leave all fields with default values and click `Next`
+9. On the `Disks` screen, choose `vmdata` for `Storage` which uses the "256GB NVMe SSD" device for very fast data.
+10. If you need more or less storage than `32`, update the `Disk Size (GiB)` as needed.
+11. Leave all other fields with default values and click `Next`
+12. On the `CPU` screen, choose `2` for `cores` and leave all the rest default and click `Next`
+13. On the `Memory` screen, add more or less RAM than `2GB` as needed. Leave all the rest default and click `Next`
+14. On the `Network` screen, leave all fields with default values and click `Next` (be sure to set a static IP in the VM after it boots)
+15. On the `Confirm` screen, review all data and click `Finish` 
+16. Click on the right side of the screen where your new VM shows up as `NUMBER (Name)` eg `102 (truenas)`
+17. Click `Console` and choose `Start now` 
+
+
+## NAS Drives
+
+