When we set up our infrastructure initially (Ubuntu VMs on proxmox with ZFS storage), I used the default block size, which was 8kB at the time.. Space considerations when using zvols on RAIDz Smaller block sizes are good because they limit write amplification (writing one byte in the guest require writing a full block to…

While setting up my analytics with clickhouse, I tried to map IPs to countries. I found this article that perfectly explains how to do this with IPv4, but gives no indication of how to adapt the queries to ipv6. The beginning of the process is identical: fetch IP ranges from dbip-city-ipv6 using a table with…

Let’s say you installed proxmox on a dedicated server to which you have physical access, but now you need to replace the boot disk. If you use a similar medium (replacing a SSD with a SSD or a usb key with a usb key) with a larger or equal size, then you can simply copy…

Let’s say we have a Proxmox cluster running ~30 VMs using ZFS as a storage backend. We want to backup each VM hourly to a remote server, and then replicate these backups to an offsite server. Proxmox Backup Server is nicely integrated into PVE’s web GUI, and can work with ZFS volumes. However, PBS is…