Top all-time · #2486
louwrentius.com
Personal blog · louwrentius.com · on HN as louwrentiussystemshardware
louwrentius.com is a personal blog at louwrentius.com about systems and hardware. Since 2012, 33 different Hacker News readers have linked it 153 times, most often “Please Use ZFS with ECC Memory (2014)”. No feed was found, so read it on the site itself.
Most-linked posts?
- /please-use-zfs-with-ecc-memory.html6 people · 6 mentions · first linked 2014-09-09
- Please Use ZFS with ECC Memory (2014)5 people · 5 mentions · first linked 2019-12-20
- The 'Hidden' Cost of Using ZFS for Your Home NAS3 people · 5 mentions · first linked 2020-07-20
- The Sorry State of CoW File Systems3 people · 3 mentions · first linked 2015-03-01
- Most Technical Debt Is Just Bullshit2 people · 5 mentions · first linked 2020-09-25
- The Raspberry Pi 5 Is No Match for a Tini-Mini-Micro PC2 people · 4 mentions · first linked 2024-06-16
- Understanding Ceph: open-source scalable storage (2018)2 people · 3 mentions · first linked 2020-10-26
- Raspberry Pi as a router using a single network interface2 people · 3 mentions · first linked 2021-09-29
- Benchmarking a 1.44 MB Floppy Drive's Random I/O Performance2 people · 2 mentions · first linked 2019-12-17
- 71 TiB DIY NAS Based on ZFS on Linux2 people · 2 mentions · first linked 2014-08-31
What Hacker News says?
I've answered that question here below the picture: https://louwrentius.com/71-tib-diy-nas-based-on-zfs-on-linux...
Comment linking /71-tib-diy-nas-based-on-zfs-on-linux.html
on “Apple mobile processors are now made in America by TSMC”Submitted The Raspberry Pi 5 Is No Match for a Tini-Mini-Micro PC as a story · 462 points
HN discussionI actually run quite a few of them in parallel, but that doesn't solve the problem: As the other person stated: charging lead acid is time constrained. And that means that you can't fully charge the battery within the time period when you have sun. Lead acid deteriorates quickly if left (partially) discharged. This is why lead acid works so well with cars (almost always fully charged at all times). Depleted lead aci…
Comment linking /a-practical-understanding-of-lead-acid-batteries.html
on “This website has 81% battery power remaining”Submitted My 71 TiB ZFS NAS After 10 Years and Zero Drive Failures as a story · 419 points
HN discussionMy own battery + solar powered blog [0] is 100% inspired by lowtechmagazine. I am based in The Netherlands and due to my sub optimal location, I have to cheat in the winter by recharging from mains about weekly. I still do get some sun, but nowhere nearly enough to get through the day, let alone the night. [0]: https://louwrentius.com/this-blog-is-now-running-on-solar-po... And lead acid is also terrible for solar a…
Comment linking /this-blog-is-now-running-on-solar-power.html
on “This website has 81% battery power remaining”Submitted My Home Lab Server with 20 Cores / 40 Threads and 128 GB Memory as a story · 239 points
HN discussionWell, I think they aren't any good for anything. They seem to be a solution to a problem nobody has. [0] [0]: https://louwrentius.com/cryptocurrencies-are-detrimental-to-...
Comment linking /cryptocurrencies-are-detrimental-to-society.html
on “Cambridge Bitcoin Electricity Consumption Index”Submitted This Blog Is Now Running on Solar Power as a story · 227 points
HN discussionI'm hosting my static blog site on a physical Raspberry Pi 3B+ powered by Solar [1]. That blog post got hugged by HN but it didn't even raise the CPU above 10% on a single core. And a Raspberry Pi 3B+ is dog slow. And severely limited by bandwidth, unlike the Raspberry Pi 4B+. (But it uses less power so that's why I use a 3B+). However I have another point to make. Professional rack-mount servers from HP and Dell ca…
Comment linking /this-blog-is-now-running-on-solar-power.html
on “My £4 a month server can handle 4.2M requests a day”Submitted 71 TiB DIY NAS Based on ZFS on Linux as a story · 164 points
HN discussionThe author is on to something, but still, most cases of technical debt aren't really technical debt as how Ward Cunningham meant the concept. His idea is to regularly pause, and take your time to incorporate your new knowledge about the problem at hand into your code. There is no other way, because if code concepts don't reflect the problem space, development will slow down, become cumbersome. But what I see and wha…
Comment linking /most-technical-debt-is-just-bullshit.html
on “Technical debt as a lack of understanding”Submitted An ode to the 10,000 RPM Western Digital (Veloci)Raptor as a story · 121 points
HN discussionHmm, where would you get that idea from? https://louwrentius.com/cryptocurrencies-are-detrimental-to-...
Comment linking /cryptocurrencies-are-detrimental-to-society.html
on “Ethereum 2.0 launches”Submitted Don’t Be Afraid of RAID as a story · 120 points
HN discussionI not only run my blog on a computer in the corner of the room, it's solar-powered as well. At night it is supported by a bunch of lead acid batteries[0]. If you can you should host your own blog/website on your own physical computer at home. Especially for blogs, availability and redundancy is just not critical. And if you do a little bit of preparation you can recover quickly from any failure. It is fun, you may l…
Comment linking /this-blog-is-now-running-on-solar-power.html
on “I wish my web server were in the corner of my room”Submitted The Sorry State of CoW File Systems as a story · 91 points
HN discussionFor those of us who: 1. Don't have $2300 to spend on a hobby 2. Can live with very slow refresh-rates I've found an epaper / eInk display on Waveshare that might be interesting. https://louwrentius.com/a-1248-inch-1304x984-three-color-e-p...
Comment linking /a-1248-inch-1304x984-three-color-e-paper-display-by-waveshare.html
on “I made an eInk newspaper”Submitted The 'hidden' cost of using ZFS for your home NAS as a story · 84 points
HN discussionThis is an older picture of my 'Lack Rack' setup: https://louwrentius.com/static/images/lackrack01.jpg https://louwrentius.com/static/images/lackrack02.jpg I recently discovered that a single Lack table is only rated for 20 Kg or so, which I'm violating quite a bit. It's still standing ... --------------------------------------------------------- Also about noise of 19" gear: yes this is a real problem, this is why…
Comment linking /static/images/lackrack02.jpg
on “How to Turn an IKEA Coffee Table into a DIY Server Rack”Submitted Raspberry Pi as a router using a single network interface as a story · 80 points
HN discussionI wrote an intro to Ceph[0] for those who are new to Ceph. It featured in a Jeff Geerling video briefly recently :-) [0]: Understanding Ceph: open-source scalable storage https://louwrentius.com/understanding-ceph-open-source-scala...
Comment linking /understanding-ceph-open-source-scalable-storage.html
on “Ceph: A Journey to 1 TiB/s”Submitted I Resurrected My Dutch Movie Review Site from 2003 as a story · 74 points
HN discussion>ECC is recommended but many people, myself included, have run many stable years without ECC. zfs requires ECC[0][1], do not skimp on this. I ran many zfs pools for >8 years without issues until silent memory corruption happened to me, and now I can't access my data anymore (zfs won't let me mount a zpool that fails scrub checks). 0: Oracle (and previously Sun) documentation recommends ECC to prevent silent corrupti…
Comment linking /please-use-zfs-with-ecc-memory.html
on “Show HN: Zfs.rent”Submitted Please Use ZFS with ECC Memory (2014) as a story · 62 points
HN discussionThis is what I did, I just snagged some cheap Rosewill case off of newegg with 12 bays, a PCIe sata card and packed the case with drives. You can slice and dice the drives however you like. I found this guy's blog posts to be useful for running a homegrown NAS: - https://louwrentius.com/should-i-use-zfs-for-my-home-nas.htm... - https://louwrentius.com/the-hidden-cost-of-using-zfs-for-you...
Comment linking /the-hidden-cost-of-using-zfs-for-your-home-nas.html
on “An Introduction to ZFS”Submitted A 12.48 Inch (1304x984) Three-Color E-Paper Display by Waveshare as a story · 55 points
HN discussionI am using Debian with ZoL, but it's now ancient. Just ZFS + NFS & SMB. https://louwrentius.com/71-tib-diy-nas-based-on-zfs-on-linux... I would now go for Ubuntu + ZoL myself. I bought all capacity up front and paid the ZFS tax. So I don't need to expand as I go. But if you want to expand as you go, Linux + MDADM are still fine in my opinion. It's a tradeoff. Do you want to 'pay' the ZFS tax and expand at a cost, or…
Comment linking /what-home-nas-builders-should-understand-about-silent-data-corruption.html
on “An Introduction to ZFS”Submitted Systemd Forward Secure Sealing of System Logs Makes Little Sense as a story · 39 points
HN discussionYes that's totally true, but it is very time consuming and cumbersome in my view. I've detailed this also here. https://louwrentius.com/the-hidden-cost-of-using-zfs-for-you... You may also realise from the top of my article that expanding VDEVS is a topic since 2017 but still no show.
Comment linking /the-hidden-cost-of-using-zfs-for-your-home-nas.html
on “An Introduction to ZFS”Submitted Most Technical Debt Is Just Bullshit as a story · 37 points
HN discussion
