So how are other Proxmox users managing their backup and recovery. In the meanwhile one thought I have is create a periodic backup of the boot drive from the proxmox gui, and then have another process run from within the vm to make full and incremental backups of the data. So here I sit, trying to find a way to create incremental backups from the proxmox web gui or using a third party tool. I suspect that the full backup and restore process for a data set this large will not meet the recovery objective. BUT, my goal is to backup a server that has 1.4 TB of data and also have a maximum recovery time of 4 hours. The test vm just described has a total of 70 gig disk space on the two drives and the backup process takes about 17 minutes on my current hardware. In this case I thought that the snapshot mode of a backup would create an incremental backup - but it did not. The snapshot mode confused me because the term snapshot is also used to create what I will call a 'state' snapshot rather than a 'real' backup. In setting up the backup job the choices for mode are snapshot, suspend, and stop. The backup went well, as well as the subsequent restore. Added some data and began backing up to a samba share running on a separate physical machine. Subsequently added a second virtual disk for data, also using the local-lvm option. Created a Server 16 guest on a 32 Gig boot drive using the local-lvm storage option, tested and works fine. Dell T320 this hardware raid, a 2tb raid one set, 16 gig of ram running proxmox 6.2 with community subscription. I've been poking around with proxmox for the last few days and have had some success with the backup and restore process.
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