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> We’ve pencilled out a model where we place one copy on a slower, but underutilized, tape-based system while leaving the other on disk. Store images on tape?
by gist 10y ago
> We’ve pencilled out a model where we place one copy on a slower, but underutilized, tape-based system while leaving the other on disk.
Store images on tape? What about degradation of the tape overtime? Certainly seems to be a factor compared to hard drive degradation.
- JaggedJax 10y agoI have no personal experience, but think an LTO tape would last longer than a HDD for long term storage. LTO tapes are rated to 30 years of storage and I doubt anyone would be using an HDD to store data that long.
- londons_explore 10y agoWith drives, you are typically checking every few hours that data is readable. If it becomes unavailable, you create a new replica right away. With tapes, even though they might last longer, you typically wouldn't scan and check the data as regularly. That means, if it does go unavailable, there is a larger window of time for other replicas to fail in before re-replication completes.