Re: [bitfolk] Filesystems/volume management for home servers

Top Page
Author: Ed
Date:  
To: users
Subject: Re: [bitfolk] Filesystems/volume management for home servers

Reply to this message
gpg: Signature made Sat Jun 1 07:29:02 2019 UTC
gpg: using DSA key E1DCABEECE8F4588
gpg: Can't check signature: No public key
On 2019-05-31 23:56+0000, Hugo Mills wrote:
>    I started out writing CD-Rs about 15 years ago, migrated to DVD+R,
> and then to BD-R. I'm considering LTO-6 as the next migration, despite
> the poor economics w.r.t. BR-R at my kind of scale.


What is the data integrity on optical media over ten or more years? I
have some CDs from 1990's era (silver) and starting to go mouldy. Many
of my writable CDs have lost their film, so useless for long term data
retention.

LTO on the other hand should span multiple decades without issue. If I
remember correctly, the tape should be forward compatible with drives
(not sure if there's a maximum number of iterations here, but I'd hope
not).

You could regularly export ZFS mirrors if you work spinny disks out to
be lower cost than LTO.

Remember to off-site one half of the mirror.

--
Best regards,
Ed http://www.s5h.net/