What's the most reliable backup medium available for consumers?

What's the most reliable backup medium available for consumers?

The cloud™

Tape drive.

Pen and paper

HDD or tape

Public cloud. Most providers only charge you for data egress.

You can have unlimited blob storage access to Azure and it's geo-redundant, it's encrypted at rest, and you only pay for data you take out. In a cold storage backup perspective, it's practically free.

If you don't want to use blob, you can use the 5TB SMB storage instead. Mounts like a fileshare on your PC.

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abstinence

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HDD

CD ROM

>What's the most reliable backup medium available for consumers?
M-DISC

>aryan goddess
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If you buy tape drives you'll need to invest shittons and also store them in a temperature-controlled, humidity-controlled room. Tapes are very vulnerable if not handled well.

HDDs are far easier to handle, and also extremely cost-eficient if you need to do lots of backups often. That said, you'll still want to use parity as they decay over time, and temperature/humidity concerns also apply to a lesser degree. A hard drive that has been lying around in storage for years may fail to spin up.

CD-ROM, DVD-ROM and BD-ROM are more cost effective than hard drives per GB, and also retain their data longer unless subjected to heat/sun exposure. The big downside, of course, is that even with BD-ROMs you have a lot of overhead if you want to store more than a few hundred GB, especially if you want to do it often.

M-DISC is undoubtedly the clear winner. An M-DISC will basically never decay, so you don't need parity, never need to re-write stuff you've already written, are easy to store and only marginally less cost-effective than BD-ROMs.

HDDs are probably best based on value, capacity, and availability.

no such thing, no one cares about those sheep.

DVD
/thread

your brain

HDDs.
Anything more reliable (e.g. tape) is significantly more expensive and is going to be beaten by redundant HDDs for the same price.

Uploading to Google Drive.

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BD-ROM easily beats HDDs in terms of GB/$ if you don't overwrite your backups.

If you do overwrite your backups (e.g. if you rsync over changes), then HDDs are of course more cost effective.