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HR boot times?

Discussion in 'DIRECTV HD DVR/Receiver Discussion' started by woodardhsd, Jun 29, 2013.

  1. woodardhsd

    woodardhsd AllStar

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    Jan 19, 2009
    Sorry if this has been asked before, but I just spent half an hour searching and couldn't find anything.

    I see where the HR44 is the fastest ever dvr, but does that apply to just channel changes/guide/menus, or do they boot up faster as well? My HR22 from 2007 seems to take forever to reboot with a slight power interuption, like 15-20 minutes to reboot and get back to programming. Has anyone ever ranked the different models as far a boot times after a power outage?

    From my searching I did see there you could use a UPS to prevent this from happening, I don't know why I didn't think of that before :bang
     
  2. jimmie57

    jimmie57 Hall Of Fame

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    My old / died HR23 took 11 minutes using the latest software.

    My HR24 takes 6 minutes.
     
  3. Diana C

    Diana C Hall Of Fame DBSTalk Club

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    The faster DVRs (which means the HR44, HR34 and HR24) do indeed boot faster. Some aspects are about the same (like the "acquiring satellite data" step) but the basic load and initialization are much faster.
     
  4. woodardhsd

    woodardhsd AllStar

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    Jan 19, 2009
    I have something recording on the DVR so I'm not going to interrupt it, but I unplugged my H24 in the other room and it took 5:30 to reboot completely. Solid signal says it takes a HR44 around 4 minutes. When I have a few minutes free, I'll try the HR22
     
  5. CCarncross

    CCarncross Hall Of Fame

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    If you are to the point you notice your dvr rebooting its probably much too frequently and obviously during times you are trying to watch tv. I highly suggest you go the UPS route as your power seems flaky enough to warrant it. I have UPS's on all my heavily watched stb's and I only have 3-4 power interruptions at my house in an entire year. I did it just to protect the electronics from getting beat up from sudden power loss. PC's, DVR's, all can take a beating during power outages and/or brownouts, its very hard on power supplies and hard drives especially when they are in the process of writing at the time.
     
  6. jimmie57

    jimmie57 Hall Of Fame

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    I have one of these on each setup.
    http://www.amazon.com/APC-BE550G-Back-UPS-Outlet-550VA/dp/B0019804U8/ref=sr_1_1?ie=UTF8&qid=1372527093&sr=8-1&keywords=ups+550

    When the power goes off it will power the TV and the AVR and the DTV receiver for about 4 minutes.
    When you turn off the TV and the AVR it will keep the DTV receiver running for about 40 minutes.

    At least once a week it appears that the power company does some switching. It always happens at 8 am. Just for an instant the UPS will make a click sound and then click again. I put a Kill A Watt meter in the line and I can see that the power has indeed gone out for just an instant. It is so fast that the lights do not go out but it is enough for the DVR to reboot.

    Definitely recommend a UPS to each system.
     
  7. RunnerFL

    RunnerFL DIRECTV A-Team

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    Jan 4, 2006
  8. peds48

    peds48 DIRECTV A-Team DBSTalk Club

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    I have also noticed that with both Genies, a second boot up, meaning if you reset a working Genie, it goes much faster (or skips) the guide data step.
     
  9. RunnerFL

    RunnerFL DIRECTV A-Team

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    That's not just Genies. If any HR didn't flush guide data (2 reboots within 30 minutes) then it boots faster.
     
  10. peds48

    peds48 DIRECTV A-Team DBSTalk Club

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    That's not just Genies. If any HR didn't flush guide data (2 reboots within 30 minutes) then it boots faster.


    Right, this is something new(er). I said Genies because that is what I install everyday. Have not installed an HDDVR in probably 3 months
     
  11. TomCat

    TomCat Broadcast Engineer

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    Aug 31, 2002
    Boot time is a few things that happen serially. Just like your computer has a POST time where hardware and I/O tests run during bootup, a DVR does as well. But the DVR also has hardware tests of the entire dish and distribution system, including finding the sats. It also has to do a sanity check of all running processes, and it has to audit every media file on the HDD (or at least the files represented in the DB). You will also notice it cycling through the output resolutions a number of times.

    While having a faster CPU might impact this a bit, it probably is not significant. What is significant is the audit process. If you have a full 2 TB drive with lots of little recordings on it, that will take a while to audit, in the same way that deleting lots of little files on a PC takes longer than deleting one large file that is larger than those little files all put together; IOW its the houosekeeping that takes the time more than how large the files are. So a drive with all 2-hr movies on it will probably allow a quicker boot than the same drive with the equivalent space occupied by 30-minute sitcoms. If you have a brand new HDD that has no recordings on it, that will probably take about 4 minutes, because the audit is pretty short, and everything else takes about 4 minutes.
     
  12. RunnerFL

    RunnerFL DIRECTV A-Team

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    The drive content isn't checked and verified, aka audited, on boot. My HR44, with a 6TB array and only 30% available takes the same amount of time to boot as when I first got it and that's just over 2 minutes.
     
  13. Laxguy

    Laxguy Honi Soit Qui Mal Y Pense.

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    Winters,...
    OP- How often does your DVR reboot per month?
     
  14. TomCat

    TomCat Broadcast Engineer

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    So, you think that what you think you might have seen is enough to invalidate actual facts? Good luck living a life like that. Are off-hand comments by readers on WebMD enough to get you to dismiss direct advice from your heart surgeon, because what Joe Sixpack posted there must mean someone who has studied the issue and worked with it professionally for a long time hasn't a clue? Why am I not surprised by that?

    Every DVR from the beginning of time has done this. It prevents corrupted files from mucking up the system. IOW, if it can't rectify a file based on info it compares it to in the database, it deletes that file during the start-up sanity check so that such a file can't cause issues down the road. But it has to check each file for continuity serially, one by one, and that includes separate audio files if they are not interleaved with the video. And this is from the legacy of professional broadcast video servers (which is where DVR technology came from, BTW), which have been doing this for decades, and which I am paid pretty handsomely to be this familiar with.

    If it was not done, there could be files that were still listed, yet they will not play properly or at all and can't be deleted, which means over time every DVR playlist would become a mess, since unlike professional media servers there is no preventative or regular maintenance done on DVRs once the consumer has them, and call center phone calls would triple, and that does not begin to touch the number of issues that corrupted media files might cause, including spontaneous reboots and unrecoverable crashes.

    Not only that, but my array is MUCH bigger than your array (OK, like most of the rest of us I don't need to overcompensate for imagined shortcomings, so I'm not nuts enough to think I even need an array, or a pickup truck with giant wheels that's 8 feet high).

    Knife to a gunfight?
     
  15. RunnerFL

    RunnerFL DIRECTV A-Team

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    What you claim happens during boot time happens well after boot up is completed.

    As for your personal attack, I'll leave that to the mods to handle.
     

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