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I'm actually looking for local hardware solutions. Sending every change to everything up to AWS would be wildly expensive both in bandwidth and cash. It would
by daly 5y ago
I'm actually looking for local hardware solutions.
Sending every change to everything up to AWS would be wildly expensive both in bandwidth and cash. It would also put all of your data "in the cloud" (aka on other people's computers).
Plus a ransomware attack on AWS would make the backup unavailable.
A small, local device that contains a memory cache could write a DVD once half the cache is filled (double buffering).
A double-sided, double-layer DVD can hold 16GB so an "inline cache" with 32GB could copy and store a DVD worth of disk backup and then write a DVD.
BLU-RAY can store up to 50GB
- wmf 5y agoBDXL holds 100 GB so if a few of those are enough to hold your backup that's what you should do. The cloud will look cheap once you see the price of LTO or Optical Disc Archive drives. For business use, I think any backup/archive system that keeps multiple backups should be safe enough against ransomware since you can restore from the newest uncorrupted backup.
- daly 5y agoI've looked at tape backup. It seems to have 2 problems. Tape is re-writeable which means that a ransomware attack could overwrite the tape. Tape is wildly expensive for some reason. This seems odd to me. I wrote a tape-based archive system in the 1970s. Most technologies have gotten cheaper. Tape has not.
- wmf 5y agoThere are WORM tapes. Tape no longer has economy of scale so it didn't get cheaper while other technologies did. I'm not aware of any Blu-ray robots so at large scale your choices are limited to disk, tape, or ODA which are all fairly expensive.
- syshum 5y agoI can not imagine backing up one dvd at a time. Not only would that be impractical for most applications. Even my home I have several TB of data, for a business that would be much more. Dvd's are unreliable as a long term storage media due to physical damage or if it is a rw dye decay