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HR2x/R22 0x368: Is your Hard Drive loud?

Discussion in 'DIRECTV HD DVR/Receiver Discussion' started by Doug Brott, Nov 11, 2009.

Is your Hard Drive loud?

  1. Yes, I would describe it as loud

    0 vote(s)
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  2. No, I would not describe it as loud

    320 vote(s)
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  1. AntonyB

    AntonyB Legend

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    May 2, 2008
    Very interesting theory.

    I "accidentally" did a double reboot last week when initiating the hard disk surface scan (missed the right place to enter diagnotics mode on the first boot, so had to restart a second time).

    Since then it seems that the frenetic disk activity has been less, but not virtually zero (as it was before 0x034C). I have not been around the last few days, so will pay close attention in the coming week and post whether (a) the noise has really abated and (b) the hiccups on playback have been curtailed or not.

    And FWIW - I have local SAT and local OTA channels in my guide data.
     
  2. poppo

    poppo Hall Of Fame

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    Did the unit completely boot up after the first reboot? I 'think' it has to be a compete boot (back to live TV) for the double reboot to flush the guide cache.
     
  3. AntonyB

    AntonyB Legend

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    May 2, 2008
    Yes, pretty sure it did. I had missed the point to enter the diags, so then I waited till I had a normal live picture and then went back into the menu to restart again. Now, whether that was sufficient, not sure. No doubt the guide was still loading at that point.

    What is the theory behind needing a double re-boot? What does that accomplish that a single re-boot does not?
     
  4. Richierich

    Richierich Hall Of Fame

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    It Flushes the Guide!!!

    We don't know the technical aspects of it but it has been recommended from time to time by moderators to clear up Corrupted Guide Data Issues,
     
  5. Doug Brott

    Doug Brott Lifetime Achiever DBSTalk Club

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    Yes, 2 restarts within 30 minutes causes the guide data to be flushed resulting in a fresh start. A single restart will keep the guide data which is usually desired.
     
  6. sonofjay

    sonofjay Legend

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    Aug 29, 2006
    Did hard drive surface test, SMART test (short), & file system test and no problems. Then did the reboot, waited until live video, and then rebooted immediately again. Constant disk "chatter" and noise bug still occurs.

    I have noticed it seems to go through cycles. For example the past 3 hours it has become worse and lots of "grinding" between the start and 10 minutes past the hour. (1-1:10, 2-2:10). This may just be coincidence and but I'll monitor more this weekend.
     
  7. 1kyardstare

    1kyardstare AllStar

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    Jan 11, 2008
    My 1 1/2 year old, 21-700 which I reported in this forum was making louder noises, unwatchable when time shifting, watching recorded shows etc. Did all the routine troubleshooting (28 hour surface check, double reboots, red button reboots, unplugging reboot). All with no help. DTV diagnosed it as a bad hard drive (which coincidentally? happened after the software update).

    I received a new HD DVR 22-100 yesterday. So far no issues. All seems like it is working well.
     
  8. CCarncross

    CCarncross Hall Of Fame

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    Jackson
    ;)
     
  9. Richierich

    Richierich Hall Of Fame

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    +1 on the Wink!!! I thought there was a Conspiracy going on!!!
     
  10. AntonyB

    AntonyB Legend

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    May 2, 2008
    I can now report that the "double-reboot" within 30 minutes (clearing the guide data cache) did not solve the problem. Tonight I again observed the stuttering on playback, accompanied by some frenetic hard disk activity.

    I can also say that the surface scan diagnostic did not help either, since I performed that at the same time I did the double restart.

    I do believe that the frequency of the frenetic disk activity (and thus the playback stuttering) has decreased since the double restart and surface scan, whether permanently or temporarily remains to be seen.

    For some reason that I can't possibly explain, the easiest way for me to reproduce the stuttering is to watch a recording of an HD show on channel 76 (HD Theater). For example, watching a recording of 2009 World Rally Championships Highlights is a good test case - it's very likely to stutter (and replaying the same segment proves that it was a transient playback problem).

    In contrast, every night I record and then playback the ABC Nightly News in HD on the ABC local affiliate (SAT channel), and I have never once seen this problem during that show.
     
  11. poppo

    poppo Hall Of Fame

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    After 4 days since I did the guide flush, mine have still remained significantly quieter. Not as quiet as they used to be, but better. There still seems to be just as much drive activity, just not as much extreme head seeking. As I mentioned above it was as if the heads were having to go from one end of the platter to the other continuously when the thrashing was taking place. So perhaps the guide data was just fragmented all over the place. I still believe this is an issue that needs to be looked into, but at least for now it does not sound like my drives are getting ready to fly apart.
     
  12. sonofjay

    sonofjay Legend

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    Aug 29, 2006
    Same here. Except that it is no quieter than it was before the surface scan test or the double reboot. In other words neither of these to efforts changed the drive noise and thrashing problem.
     
  13. CCarncross

    CCarncross Hall Of Fame

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    Try recording something from 281 instead...I dont use any of the channels mapped in the 70's anymore for ANY recordings...
     
  14. Richierich

    Richierich Hall Of Fame

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    Since that channel is MPEG-2 maybe that has something to do with it so it would be better for you to record something in a higher range that is MPEG-4 such as channel 281 which is the MPEG-4 version of HD THEATER.
     
  15. AntonyB

    AntonyB Legend

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    May 2, 2008
    But do you still see stuttering on playback?

    BTW I pretty much agree with your description of how the hard drive "sounds" since the double reboot; however I still see some playback stuttering.
     
  16. mx6bfast

    mx6bfast Hall Of Fame

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    Delray...
    I've experienced it both OTA and mpeg-4 channels
     
  17. Richierich

    Richierich Hall Of Fame

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    How about MPEG-2 stuff in the 70s???
     
  18. captainjrl

    captainjrl Legend

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    Jun 25, 2007
    Well to update my status, I am experimenting with replacing the enclosure. More specifically the fan portion of my MX1 to see if that is the cause of the increased noise. I am getting some noise from it, but I think it may be the drive as well. Antec is mailing a replacement lower tray (which includes the fan) at no cost. Should be here by the end of the week. I'll report back with what I find.
     
  19. mx6bfast

    mx6bfast Hall Of Fame

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    Delray...
    I haven't tried those since they are not in my custom guides.
     
  20. AntonyB

    AntonyB Legend

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    May 2, 2008
    I didn't know 76 was MPEG-2.

    Does it burden the DVR more to playback an MPEG-2 recording than an MPEG-4 recording? In other words, is this a possible explanation why I see the stuttering more on channel 76 recordings than on MPEG4 recordings? I know MPEG-2 uses much more data per frame so presumably it needs a faster bitrate on playback to sustain the video stream.

    I will quickly add that I definitely did experience stuttering on the MPEG-4channels as well, back with 0x034C and possibly still with 0x0368. But now, after clearing the guide cache and doing the surface scan, it may be that I only see the problem with MPEG-2 material - I'm not sure though.

    Even if that's true, it's not an acceptable situation, but narrowing it down further might help us and DirecTV to diagnose and resolve.
     
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