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looney

Retired Staff
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About looney

  • Title
    Wise Counsel Lion Non-Noble Freeman from the Sands
  • Birthday Oct 05, 1993

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  • Location
    the underworld submarine the the the
  • Gender
    Male
  • Interests
    Storage servers, enterprise grade and industrial hardware, virtualization, industrial automation.
  • Biography
    schnitzel

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  1. Synchronous writes is indeed something you would get with databases, the database wants to know that the file has been saved to non volatile storage before it sends its next bit of data. You can force zfs to treat all writes as synchronous, but synchronous is always slower as the sender has to know that the file is stored on non volatile medium. With zfs + slog, all synchronous data goes to both the vdevs (through ram and cache) and the slog at the same time in parallel. As the slog should be non volatile zfs can tell for example the database that it's data is s
  2. Fun video, but the ZIL/SLOG part is flawed and might misinform people. First of all 2TB is insanely overkill, the ZIL gets flushed roughly every 5 seconds, therefore it can never have more then 5 seconds worth of ingress data on it (I highly doubt you are getting 400gigaBYTES per second of ingress ). On top of that it is only used for true synchronous writes which are not common in most workloads. All the SLOG does is store the synchronous writes for a few seconds so it can immediately say with certainty to the sender "hey, I have received your file and I have stored
  3. I think you are just unlucky, my original batch of 45 4TB Seagate consumer drives are only just now starting to slowly fail me one by one every one or two months. To me this seems reasonable as they have a power on time of 51xxx hours (5.8y) and I have not treated them kindly in that time with a reasonable amount of IO. EDIT: apparently I still have 3 4TB drives running that I bought before those other 45 drives, they are at 6.3y and still going strong.
  4. I see your 6500 Chassis and I raise you with 3 more Okay okay, lets call it 2.5 more
  5. Correct, it's a Eaton / Delta PLC. And to answer Brian's other questions, yes the ghosting is atrocious on that laptop when playing tetris.
  6. It's an arista DCS-7124SX-SSD-F, never really looked into ONIE / SONiC compatibility. I'm also looking to replace it in the near future, the availability of firmware updates is bugging me even though its one hell of a switch. Top switch is just a Cisco WS-C3750X-48P-S, needed something for ipmi and access points / patch points throughout the house.
  7. I actually use this at lanparties, when people are still setting up that rigs I'm already playing Tetris Plus its fun to mess with the crew asking them where the coax is so I can install my 10BASE5 tap/transceiver.
  8. Hey guys, long time no see, I can't be bothered to fill in the template, way to much info, whoever made that template is truly as massive a idiot. But here is a picture of what my home rack(s) look like now:
  9. https://github.com/steamcache/monolithic/issues/28 Steam has switched their entire CDN over to HTTPS a few days ago breaking all steam caching solution's, I hope they will provide a alternative dedicated HTTP server for LAN organisers....
  10. Whoops typo indeed, it's indeed a NP4.2-6H but it's no longer produced anymore. Hence is why I'm looking for a replacement. Though I don't believe that the size standard still exists. The NP4-6 is to big. I have checked CSB, pbq, B.B, Universal Power and Yuasa but they don't seem to have them. PS: APC uses CSB and pbq batteries so no point in asking them
  11. It's a Sharp PC-4641 and as stated before it uses a Yuasa HP4.2-6H 6V 4.2Ah battery.
  12. I'm looking for a replacement battery for my laptop but I can't find one. I'ts a Yuasa NP4.2-6H 6V, 4.2Ah battery, but I can't find it in shops, can you help me find a replacement? Thanks!
  13. guess I should update, currently on 292TB raw, (45x4TB + 14x8TB)
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