• eeleech@lemm.ee
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    1 year ago

    RAID 5/6 is somewhat broken, and some people might consider the lack of built in encryption or support for a cache disk as problems. For some reason it seems popular to blame it for data loss.

    That being said, it is my favorite file system and I never had problems with data loss, but I use ECC RAM on my desktop as is strongly recommended if you use btrfs or zfs (another potential downside).

    • DaPorkchop_@lemmy.mlOP
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      1 year ago

      The recommendation for ECC memory is simply because you can’t be totally sure stuff won’t go corrupt with only the safety measures of a checksummed CoW filesystem; if the data can silently go corrupt in memory the data could still go bad before getting written out to disk or while sitting in the read cache. I wouldn’t really say that’s a downside of those filesystems, rather it’s simply a requirement if you really care about preventing data corruption. Even without ECC memory they’re still far less susceptible to data loss than conventional filesystems.

    • 𝒍𝒆𝒎𝒂𝒏𝒏@lemmy.one
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      1 year ago

      I’ve been using BTRFS for years without issue, albeit with the standard c raid modes and not 5/6.

      It saved my ass when a power supply issue popped up, causing my array’s hard drives to randomly drop out when reading/writing data. Managed to recover all data just fine, although it did take a while

    • I’ve been using btrfs for years, and I’d swear I’ve had fewer problems with it than ext4. I’ve never experienced any sort of data loss as a result of the fs.

      I’m really interested to play with bcachefs; evolution and competition is a great thing, and it’d be nice to have a reliable RAID5 built in. While I normally prefer Unix-philosophy tooling, needing layers of different tools to get an FS working is an exception that has caused me trouble in the past, so I’m all for a batteries-included solution.

      The proof in the pudding, for me, will be how easy or hard it is to administer. Messing with the fs tooling is something I do only rarely, so ease-of-use has a lot of value to me. This is why I don’t prefer ZFS; the btrfs tooling seems more intuitive.

    • Infiltrated_ad8271@kbin.social
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      1 year ago

      The arguments about data loss today are simply ridiculous and fallacious. They made sense in the beginning (or for raid5/6 until recently), but those who lost data were solely at fault for ignoring the warnings; yet instead of taking responsibility for their actions, they joined the horde of haters.