Can I use PBS for media files stored on hard disk?

[steff123]

Hey,
I am setting up a PBS for Backup my CTs/VMs and some files of PCs in the network using proxmox-backup-client. These backups I can store on a ssd. But there is also a NAS with a lot of media files stored on hdds and with a backup location on hdds. To keep the architecture simple I'd like to migrate the current backup process also to PBS with proxmox-backup-client. But I have I read that one should not use a hdd with PBS. Is it right? Or is there a way to use PBS for my extended use case?

Regards Steff

 

[Dunuin]

PBS needs IOPS performance and HDDs are terrible at that. The more data you need to store, the longer the maintenance tasks will take. Using ZFS with HDDs for data + SSDs for metadata might help a little bit with the GC tasks but verify tasks still would be very slow.
So depends on how fast you need your PBS to be. For a few TBs of data PBS on HDDs might be fine, but for bigger datastores it might take days or weeks to finish a GC or verify job.