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debs3759
Joined: 18 Jan 2006
Posts: 9477
Location: Northampton, Divided Kingdom
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 Posted: Thu Aug 13, 2020 6:03 pm Post subject: Optical media longevity |
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I'm looking for optical media that won't degrade over the years. Too many discs degrade and lose data. I first came across M-Disc, but they are very expensive. I recently read about HTL BD-R discs, which are much more affordable.
However, I know of no equivalent for DVD-R or CD-R. For DVDs, based on my research so far, if I want data to last over a decade, M-Disc seems to be the only option. Are there any options I have missed?
For CD-R, there seems to be no option that guarantees long life. I want to copy all my CDs onto media that will outlast me (that includes backing up legacy OS and apps, as well as my CDs full of other data, some of which is already lost to degradation). Is there any kind of CD-R that has longevity? M-Disc seems to only be available for BD and DVD, HTL only applies to BD.
I would consider other options than optical for most data, but for OS boot discs, optical is the only option.
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CPUShack
Joined: 16 Jun 2003
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Location: State of Jefferson, USA
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debs3759
Joined: 18 Jan 2006
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Location: Northampton, Divided Kingdom
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| Posted: Thu Aug 13, 2020 6:23 pm Post subject: |
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That is probably my best option. I probably have a 1TB drive laying around that will take all my data files and apps. Hadn't thought of that, it's too obvious 
My largest flash drive won't let me write to them since I formatted them, so they are out of the question anyway
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cvandijk
Joined: 21 Jul 2016
Posts: 3589
Location: Netherlands
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| Posted: Wed Aug 19, 2020 3:36 am Post subject: |
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Hard drives can also fail, especially if you don't use them that often, sometimes it just wont spin up after some time unused. So use a NAS/server with raid or ZFS so you are covered locally.
And backup to the cloud, cheap and you can encrypt the data before you put in on the cloud, so if your house burns down you still have the data. |
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H3nrik V!
Joined: 15 Apr 2014
Posts: 1246
Location: Denmark
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| Posted: Thu Aug 20, 2020 1:26 am Post subject: |
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| cvandijk wrote: | Hard drives can also fail, especially if you don't use them that often, sometimes it just wont spin up after some time unused. So use a NAS/server with raid or ZFS so you are covered locally.
And backup to the cloud, cheap and you can encrypt the data before you put in on the cloud, so if your house burns down you still have the data. |
Yeah, Dropbox Plus is right not €120/year with 2TB of storage .. "Let someone else manage your backup"  However, I don't know what would happen if encryption malware hit their servers .. |
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cvandijk
Joined: 21 Jul 2016
Posts: 3589
Location: Netherlands
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| Posted: Thu Aug 20, 2020 3:06 am Post subject: |
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| Or a Office 365 subscription, then you have office and 1TB storage and very cheap. Or Amazon S3, also really cheap. |
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H3nrik V!
Joined: 15 Apr 2014
Posts: 1246
Location: Denmark
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| Posted: Thu Aug 20, 2020 3:16 am Post subject: |
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| cvandijk wrote: | | Or a Office 365 subscription, then you have office and 1TB storage and very cheap. Or Amazon S3, also really cheap. |
Wow, the Office 365 was actually pretty cheap ..
I don't like OneDrive, though, but I see the point! |
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mtx500
Joined: 21 Nov 2003
Posts: 117
Location: Nuremberg, Germany
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| Posted: Sun Aug 23, 2020 5:52 am Post subject: |
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| cvandijk wrote: | | And backup to the cloud, cheap and you can encrypt the data before you put in on the cloud, so if your house burns down you still have the data. |
Just an example setup as inspiration:
I have one PC, two laptops and a Network-attached storage (NAS), and I have all data on all of them. I use FreeFileSync (https://freefilesync.org/) to synchronize each computer against the NAS, and therefore indirectly against each other. This helps against disk failures or accidential modification/deleting (if noticed soon enough).
Against catastrophic failures, I use Borg Backup (https://www.borgbackup.org/). It does not like Windows, so I use it on the Synology NAS to backup the data to the cloud. In my case, the destination is a server rented by the club where I am member (https://www.franken.de). Means, we have full control over it.
Note 1: It is essential to keep your cloud login data and encryption key in a safe place outside your house! E.g. at your brother or sister living elsewhere, or on a server of the company you work for.
Note 2: For those who can read German, I did a presentation on Borg Backup at our KNF Kongress last year. The slide set is here https://www.franken.de/veranstaltungen/kongress/knf-kongress-2019/. |
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ph4nt0m
Joined: 01 Jan 2018
Posts: 812
Location: Europe
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| Posted: Thu Aug 27, 2020 4:48 pm Post subject: |
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DVD-RAM
RAID1 or higher level otherwise
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