Comment on Hardware raccomandation for new selfhoster
bluGill@fedia.io 2 weeks agoZFS snapshots are easy to settup. If you don't notice that you deleted all the snapshots for a month you never will.
you still should have offsite backups for a fire, but the notion that raid isn't backup is not really correct since for most people the situations that raid with snapshots isn't enough protection will never occure and to the risk is acceptable. Plus raid is a lot easier to get right. For that matter if you have a backup but don't have the password after the fire you don't have a backup.
though if you rely on raid alone I'd want 3 disk redundancy.
Onomatopoeia@lemmy.cafe 2 weeks ago
One drive failure means an array is degraded until resilvering finishes.
Resilvering is an intensive process that can push other drives to fail.
I have a ZFS system that takes the better part if a day (24 hours) to resilver a 4TB drive in an 8TB five-drive array (single parity) that’s about 70% full. When uts resilvering I have to be confident my other data stores don’t fail (I have the data locally on 2 other drives and a cloud backup).