You can mitigate against HDD failure with RAID and backups.
I have two 8TB HDDs in a RAID1 configuration. if one dies i can remove the dead one and add a new one to the array and the data will sync back across from the good drive. I also have two 10TB drives in rotation going to offsite storage. every now and again i backup my server to one of these drives, take it to the place i store them and swap them over.
Only thing i’m missing from the 321 rule is different mediums, considering the amount of data i’m dealing with though the cost of backing up to tape though was prohibitative
I swear when I first heard 321 it was “at least 3 copies of the data in at least 2 physical locations with at least one copy being offline” but now I’m hearing of different storage mediums instead of different locations
That is fair. But I’ve had more HDD failure than DVD disc rot so far. I prefer physical media which doesn’t require engaging my computer.
Physical media is the way
You can mitigate against HDD failure with RAID and backups.
I have two 8TB HDDs in a RAID1 configuration. if one dies i can remove the dead one and add a new one to the array and the data will sync back across from the good drive. I also have two 10TB drives in rotation going to offsite storage. every now and again i backup my server to one of these drives, take it to the place i store them and swap them over.
Only thing i’m missing from the 321 rule is different mediums, considering the amount of data i’m dealing with though the cost of backing up to tape though was prohibitative
I swear when I first heard 321 it was “at least 3 copies of the data in at least 2 physical locations with at least one copy being offline” but now I’m hearing of different storage mediums instead of different locations
I may be wrong but my understanding was 3 copies of the data, across two storage formats, with one offsite