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Cake day: July 1st, 2023

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  • AV1 and VP9 are likely going to be your highest efficiency “free” codecs. AV1 is the way to go if you mean free as in free open source. It’s not very likely to be implemented in many TVs or set-top-boxes, but VLC/ffmpeg will be able to decode any of these. Webm uses vp8 or VP9 which are “free”(made by Google) but it’s just more specific settings for sharing online/viewing in browser.

    H264/H265 has license fees for non-free software and hardware, but they will be your most widely supported option. H265 is approximately twice as efficient as h264 (meaning you can get the same quality of encode from half the file size).

    Regardless of preset I think you can get handbrake to encode something reasonable from any of these codecs. Especially with DVD video you’ll be able to crank through videos with modern high efficiency codecs


  • It certainly is. ISO 27001 is a framework, not very prescriptive at all. Basically an auditor will ask “how do you ensure data isn’t leaving your facility in the form of discarded hardware?” If you say “here’s a link to our media destruction policy. It says all drives are wiped according to NIST 800-88 cryptographic erasure. If that is not possible or not applicable, the drive is destroyed. Here’s our log of decomissioned equipment” chances are very good they’ll say “OK great let’s move on to the next one” with only minor followup questions.






    1. RAID for uptime, backups for data you care about. RAID(1+) will keep your data online when a disk fails, but backups are the real way to keep data around if shit hits the fan. For a personal media collection, you might be better served with a non resilient RAID0 (total failure if one drive fails) with a backup around to recover from when that happens. If you do e.g. a raid5 you lose 1 disk of capacity in exchange for 1 disk of resiliency, raid6 same but 2 disks. That gives you some safety but there are a lot of instances where those raids don’t save you from losing all your data. If you buy 4x 18TB drives, you could have 36TB from the 1st two drives and then backup to the other two drives.

    2. There’s no specific type of drive to worry about unless you’re doing RAIDs especially with ZFS. Search shingle RAID rebuild for the biggest thing to worry about there.

    3. Almost always, yes. Slow drives throttle the rest.

    4. I’ve never used them but people say good things about synology most of the time. Everything comes with a cost and it’s hard to make any sensible recommendations without knowing your constraints; primarily your budget.





  • Driving two 4k monitors at 10b120hz is pretty overkill to use thunderbolt for, is kind of my point. Is anyone actually being limited by that?

    Even with cameras, the storage generally isn’t that fast. CFexpress cards cant generally break 2GB/s, and even 8+k cameras generally record to that or maybe USB-C (and if you’re recording to a USBC device you’re probably just gonna use USBC instead of thunderbolt).

    NVMe that can do sustained write speeds like that will be full in a few minutes, unless you’re offloading to a massive high speed array over 10+gbit networking it just kind of seems like why bother?

    Don’t get me wrong, I like the idea of going to faster interfaces for the sake of speed, but I have experienced almost zero real use of thunderbolt in real life, and I usually keep a pretty good eye out. My real question was mostly focused on whether there are people actually using thunderbolt and if they’re actually limited by 40gbps and I’m kinda just bitching at this point



  • Anything besides parts and manuals.

    Requirements for devices to be feasibly repairable in the first place. A phone that’s effectively a brick of glue is still unrepairable regardless of whether you can buy overpriced parts for it.

    If the enforcement mechanism for “fair” pricing is for the general public to file a lawsuit, I can guarantee that pricing isn’t going to be very reasonable.

    Apple devices are notoriously hard to repair not just because they don’t provide a $50,000 diagnostic kit and overpriced parts, they’re hard to repair because they’re designed to be disposable. This bill does absolutely nothing to change that, which is probably why Apple supported it. Good PR with completely avoidable consequences for them



  • Does anything even use thunderbolt 4’s bandwidth? About the only thing I’ve seen is external GPUs and even that is a ludicrously niche use case.

    I’d be much more excited about a post about something using TB4 to its fullest. All I can think reading this title is “who cares?” Is someone going to make a reasonably priced and even remotely convenient 40gbps ethernet card for TB5? No. Do my NVME drives go past 40gbps? Generally not, but I could’ve seen use for fast drives plugged into tb4/5 at least. Is anyone using TB4/5 for datacenter interconnects where this speed would actually be useful? I doubt it.

    Does anyone reading this post use tb4 on a daily basis and feel limited in any way?