Recent content by unwind-protect

  1. unwind-protect

    can anyone explain 'write amplification'?

    I tested write amplification in FreeBSD. UFS, ZFS, Geli and ZFS native encryption. I measured how the counters in SMART would go up compared to the amount I was writing. The numbers showed no amplification, which surprised me.
  2. unwind-protect

    Connecting U.3 NVMe to PCIe

    It depends on what you can cool easier in your particular setup. I use the in-PCIe-slot card option with a fan pointed at them. What I'd really want is a hotswap frame like this: https://www.amazon.com/ICY-DOCK-ToughArmor-Rugged-External/dp/B07B9HK4QG/ref=sr_1_3 But as people pointed out -...
  3. unwind-protect

    Intel Optane at reasonable prices

    I snooze I lose. Congrats to all who snarfed some.
  4. unwind-protect

    EXPIRED Warm? Ebay US - 1TB Crucial MX500 SATA - 90% life or better - $45+ shipping(3 or more)

    I can confirm. I have a bunch. Good compatibility, no problems.
  5. unwind-protect

    Is ZFS really needed on SSD / NVMe devices?

    Harddrives have ECC protection, too, and yet you have seen checksum errors.
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    Minis forum MS-A2

    ECC confirmation one way or another would be welcome.
  7. unwind-protect

    Speed writing to a nfs share does not match the speed shown in network reporting

    fsync(2) on the file is more likely to flush on the server. I don't think sync(1) has any meaning for NFS.
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    Intel Optane 905P 1.5TB on sale $299

    I have a PCIe slot adapter for my U.2, with a fan blowing on it.
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    Right the Wrongs. Correct the Ineptitude.

    Firmware updates without useful change log are a pet peeve of mine.
  10. unwind-protect

    Intel Optane 905P 1.5TB on sale $299

    Gaming - no. Workstation - depends on the work. I can imagine that compiles of large systems speed up by a couple of percent. Putting your Chrome profile on one could be beneficial. I have my gaming machine Windows boot on Optane but never measured whether it actually does anything faster.
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    Help Needed Deciding On Software Platform

    mdadm is very good software but since it separates filesystem and raid it has the "raid hole". Not their fault but a disadvantage nontheless. Never ran btrfs and probably never will.
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    Help Needed Deciding On Software Platform

    RAID6 is absolutely worth it over RAiD5. The problem is that after a drive failure you rsync a new drive. And the resync puts a lot of stress on the remaining old drives. At a time where one more drive failure takes your array offline. As for OS, I would use ZFS on FreeBSD, possibly inside Proxmox.
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    Good UHD BR Drive?

    Related, makemkv now has a software solution when your drive lacks 4k firmware. Didn't try it yet.