Proxmox posts for backup & networking

README.md

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+# Schleppe lab blog and project log
+
+SHould separate blog like posts and projects, better referencing and graph between posts.
+
+
+Integrated change log.

_posts/2023-07-03-proxmox_networking.markdown

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+---
+layout: post
+title:  "Proxmox 10 gbps networking"
+date:   2023-07-03 10:46:15 +0200
+updated: 2023-07-03 14:52:00 +0200
+tags: proxmox 10gbps virtualization networking
+excerpt: Proxmox setup example of redundant failover ethernet 1 gbps and primary connection over 10 gbps sfp+. Routing is done through a microtik 10 gbps 4 port switch and each server has a Mellanox ConnectX-3 sfp+ pcie card. 
+---
+
+Setting up networking in proxmox. 
+
+# Hardware
+
+Current configuration:
+- Single port Mellanox MT27500 Family ConnectX-3
+- Mikrotik CRS305-1G-4S+IN switch
+- DAC (Direct-attach-cable)
+
+Useful marketplace for all network related check out fs.com.
+
+{% include image.html
+  src="2023-07-09/CRS305-1.png"
+  alt="Mikrotik CRS305-1G-4S+IN switch"
+%}
+
+Mellanox ConnectX-3 10 gbps network card
+<div style="margin: 0 auto; width: 50%">
+{% include image.html
+  src="2023-07-09/mellanox_connectx-3_MT27500-1.png"
+  alt="Mellanox ConnectX-3 10gbps pcie network card"
+%}
+</div>
+
+The cheapest and easiest 10 gbps cards to get at the time are Mellanox ConnectX v3-5 cards. I use single port ConnectX-3 MT27500 Family cards. 
+
+General setup: 2 x 1gbps ethernet and 1 x 10 gpbs sfp+
+Network card: 
+```bash
+~ lshw -c network
+  *-network
+       description: Ethernet interface
+       product: MT27500 Family [ConnectX-3]
+       vendor: Mellanox Technologies
+       physical id: 0
+       bus info: pci@0000:03:00.0
+       logical name: ens3
+       version: 00
+       size: 10Gbit/s
+       width: 64 bits
+       clock: 33MHz
+       capabilities: pciexpress ethernet physical fibre
+  *-network:0
+       description: Ethernet interface
+       product: I350 Gigabit Network Connection
+       vendor: Intel Corporation
+       physical id: 0
+       bus info: pci@0000:04:00.0
+       logical name: enp4s0f0
+       version: 01
+       size: 1Gbit/s
+       capacity: 1Gbit/s
+       width: 32 bits
+       clock: 33MHz
+       capabilities: ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd
+  *-network:1
+       description: Ethernet interface
+       product: I350 Gigabit Network Connection
+       vendor: Intel Corporation
+       physical id: 0.1
+       bus info: pci@0000:04:00.1
+       logical name: enp4s0f1
+       version: 01
+       size: 1Gbit/s
+       capacity: 1Gbit/s
+       width: 32 bits
+       clock: 33MHz
+       capabilities: ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd
+```
+
+
+With the two redundant ethernet connection create a failover bond.  
+
+Interfaces:
+ - ethernet 1: eno1
+ - ethernet 2: eno2
+ - sfp+ over pcie: enp21s0
+
+```
+cat /etc/network/interfaces
+
+...
+auto lo
+iface lo inet loopback
+
+auto eno1
+iface eno1 inet manual
+	mtu 1500
+
+auto eno2
+iface eno2 inet manual
+	mtu 1500
+
+auto enp21s0
+iface enp21s0 inet manual
+	mtu 9000
+
+auto bond0
+iface bond0 inet manual
+	bond-slaves eno1 eno2
+	bond-miimon 100
+	bond-mode active-backup
+	bond-primary eno1
+#redundant 1G
+
+auto bond1
+iface bond1 inet manual
+	bond-slaves bond0 enp21s0
+	bond-miimon 100
+	bond-mode active-backup
+	bond-primary enp21s0
+#10G failover to dual 1G
+
+auto vmbr0
+iface vmbr0 inet static
+	address 10.0.0.80/24
+	gateway 10.0.0.1
+	bridge-ports bond1
+	bridge-stp off
+	bridge-fd 0
+	bridge-vlan-aware yes
+	bridge-vids 2-4094
+	mtu 9000
+```
+
+- quick summary of state
+- TOC
+- images of hardware
+- explanation of goal
+- config
+- hardware list
+- notes

_posts/2023-07-09-proxmox_backup.markdown

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+---
+layout: post
+title:  "Proxmox backup and recovery"
+date:   2023-07-09 15:46:15 +0200
+updated: 2023-07-09 15:52:00 +0200
+tags: proxmox backup virtualization storage zfs
+excerpt: Proxmox setup example of redundant failover ethernet 1 gbps and primary connection over 10 gbps sfp+. Routing is done through a microtik 10 gbps 4 port switch and each server has a Mellanox ConnectX-3 sfp+ pcie card. 
+---
+
+- Creating from scratch vs adopting array
+- Config
+- Encryption
+  - Yubikey encryption
+- Namespace
+- Cloning or recovering vm
+  - From another host