• 6 Posts
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Joined 1 year ago
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Cake day: June 12th, 2023

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  • So I do HPC installations, and using Mellanox/NVIDIA adapters in Ethernet mode absolutely sucks. First, when you initially install them, they’re named something like ens2f0, where “2” generally corresponds to the PCI slot. Pretty easy, until you install MOFED. Yeah, I know you don’t need MOFED, but the drivers included in RHEL are waaay old. Anyway, after installing the newer drivers, that exact same interface becomes ens2f0np0!

    What’s even better is there’s no guarantee that a PCI Ethernet card in PCI slot 2 will be “ens2…” which I would argue is predictive!



  • Awhile back, I got a bookbub deal alert email about a series called the Lattice Trilogy. When I read the synopsis, I wasn’t sure I’d buy the premise: a future where privacy simply doesn’t exist. Still, out of curiosity and an extremely low price, I gave it a read. Wound up reading all three books. Since then, I’ve been watching privacy die in much less sci-fi-y circumstances.













  • Usually trousers (really like the Eddie Bauer Ranier pants and shorts), golf shirt, grip6 belt, hiking boots and good socks. Bose QC35s if I’m in the data center. One customer makes me wear a safety vest. If I’m working weekends, in some data centers it’s warm enough for shorts (I’m not doing hardware installs).

    If I’m working at home, whatever I slept in plus a shirt.



  • The dash used to be how to could tell how long someone had been using tar. If they started with Linux, they probably use a dash. If they started on a UNIX variant, they probably don’t. Either way, the dash isn’t needed.

    Also recently learned that recent versions of tar will autodetect compression. So for extraction, you just need “tar xf “


  • I would say Chicago is maybe a better example. All around Chicago, you have a number of cities where a good majority of people living there commute into “the city.” All these places kind of run into one another to make a large metro area. Further out, there’s more space between towns, so they don’t seem like part of Chicago. Still a good number of people in those towns often work somewhere in the metro area.

    I’ve always considered a “metro area” to include the immediate feeder communities that but up to one another and “the city” itself, and the “greater area” getting into the further out suburbs that are a little more spread out but feed into the metro area.