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Joined 2 years ago
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Cake day: June 10th, 2023

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  • An HBA (host bus adapter) is a SAS controller (or rather, has a SAS controller chip on it). You mostly just want to make sure that your host (the server) has enough physical PCIe lanes to use the whole card, otherwise you’ll get bottlenecked there. You also want to check whether you’ve got 6G SAS or 12G SAS capability. If your drives only support 6 gig, for example, there’s zero point in buying a 12G SAS card, which is actually nice because 6G cards are a lot cheaper. You do want to make sure you actually need an HBA and not a RAID controller though - they’re easily confused. Not sure if I actually answered anything there but I write SAS firmware and use HBAs all the time, so feel free to ask me more and I’ll try to piece together a coherent answer.






  • I’ve got half a dozen of similar Tek scopes myself, along with a number of much older scopes from the 60s and a handful of others as well - they’re very pretty. Easy to work on, too, long as you stay careful around HV parts. You definitely should keep it around and consider restoring it as opposed to putting a PC inside of it, cool as that may sound. But either way, I’m glad it found a better home than a dumpster!



  • I use an older stereo Leica GZ6T I fixed up. Definitely worth it - would recommend picking up a used microscope on eBay though. You can generally get them <$100 or so if you look enough. I don’t have a ton of space either but I really just shove it under my desk when I’m not using the thing.