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CorvusRidiculissimus @ CorvusRidiculissimus @alien.top
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2 yr. ago

What OS should I use?

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  • Don't commit too quickly. btrfs has it's advantages, but it has limitations too - not least of which is that there's no two-drive redundancy mode, and the raid5 mode has some known bugs - it's mostly safe. Generally I'd go with ZFS, as would most here.

    • What OS should I use?

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  • Certainly some variation of linux, but there are many of those. For drive pooling, your options are btrfs or zfs. Of those, zfs is the most mature and capable - the only drawback is that once you make a pool you can't easily change the number of drives in it. A small limitation.

    Drive pooling as ZFS does it is a replacement for RAID. You generally don't need RAID these days, except for fault-tolerant boot drives in high-availability servers.

    Ignore the ZFS "1GB per TB" thing. It's old advice. Use, ZFS does like lots-o-ram because of the way it uses caching. But it doesn't need that much. Your 16GB plan is plenty. You could probably do it in 8GB.

    • What's this connector on a WD 2.5" external HDD?

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  • The Mystery Connector! Every drive seems to have one, but there's no standard for what it does - it's manufacturer specific. It's for their own use, mostly - for factory testing. Sometimes it can be used in advanced data recovery, or holds a hidden pin for connecting to a status light. Could be JTAG, I2C or good old async serial. But basically no use to you.

    As for the not working part - give us a dmesg output when you connect it. We might be able to make something of that.

    • what's the archive type with the bext size compression (lowest size after archiving) but that has partial extraction (extracting specific files) ?

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  • Depends on your data, but there are two major contenders for that title: 7z (with solid mode off) and zpaq. You will probably get slightly better compression on zpaq, but it's not widely known.

    • Using 7zip: which format is recommended to use when archiving data, .7z or .zip?

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  • They'll both be readable for the foreseeable future. 7z has the advantage of better compression, but other than that they are pretty much the same.