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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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How to transfer a lot of storage? (lemmy.world)

submitted 4 weeks ago by poinck@lemmy.world to c/linux@lemmy.ml

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I want to transfer 80 TB of data to another locatio . I already have the drives for it. The idea is to copy everything to it, fly it to the target and use or copy the data on/to the server.

What filesystem would you use and would you use a raid configuration? Currently I lean towards 8 single disk filesystems on the 10 TB drives with ext4, because it is simple. I considered ZFS because of the possiblity to scrub at the target destination and/or pool all drives. But ZFS may not be available at the target.

There is btrfs which should be available everywhere because it is in mainline linux and ZFS is not. But from my knowledge btrfs would require lvm to pool disks together like zfs can do natively.

Pooling the drives would also be a problem if one disk gets lost during transit. If I have everything on 8 single disks at least the remaining data can be used at the target and they only have to wait for the missing data.

I like to read about your opinions or practical experience with similar challanges.

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[–] Cyber@feddit.uk 4 points 4 weeks ago (1 children)

Not quite clear there...

You're copying data from the source, to harddrives... and then to a server with different drives?

Assuming it's just lots of smallish data files / media and not OS files (ie don't need symlinks, attributes, ownership, etc) then any backup software which generates hashes to be able to repair the archive during a restore would do.

Btrfs doesn't need LVM, but I wouldn't use that on mobile drives.

Or... is this one huge 80TB file?

[–] poinck@lemmy.world 3 points 4 weeks ago

Your assumption is correct. These are many files of medium size: sat raster images.

The more I think about it, the more I lean towards btrfs, because even if they don't use btrfs on the target server the copying process will do the error correction based on the checksums in btrfs itself.