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Weaknees upgraded S3

Discussion in 'TiVo Series3 HDTV DVRs' started by taba469, Sep 24, 2006.

  1. Sep 26, 2006 #21 of 135
    jazzsax

    jazzsax New Member

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    Feb 22, 2006
    I guess the Seagate sound level does have a benefit, though the specs aren't apples to apples:
    750GB DB35 shows:Acoustics PVR (typical/max bels) 2.71/2.88
    750GB 7200.10 shows Idle 2.7 (typical) 3.0 (max) ,Perf seek 3.0 (typical) 3.4 (max)
     
  2. Sep 26, 2006 #22 of 135
    Agent86

    Agent86 Registered Lurker

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    Jan 18, 2002
    Where did you find that max quote on the 7200.10? The datasheet I found on Seagate's site only said that the seek was 3.0. It said nothing about typical or max.
     
  3. Sep 26, 2006 #23 of 135
    jazzsax

    jazzsax New Member

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    Feb 22, 2006
  4. Sep 27, 2006 #24 of 135
    Agent86

    Agent86 Registered Lurker

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    Jan 18, 2002
  5. Sep 27, 2006 #25 of 135
    RichB

    RichB Member

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    Apr 2, 2003
    Massachusetts
    Here is are some interestin measurements of the Western Digital and the effects of AAM:

    http://www.behardware.com/art/imprimer/628/

    - Rich
     
  6. Sep 27, 2006 #26 of 135
    bkdtv

    bkdtv New Member

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    Jan 9, 2003
    DC Metro Area
    RichB,

    Nice link. According to that site, idle noise from two inches on the WD 500Gb (40 dB) and Seagate 750Gb (40.5Gb) is about the same, but when you factor in seeks, the difference becomes quite significant.

    Seek Noise from 2 Feet
    WD 500Gb (AAM enabled) - 43.0 dB
    WD 500Gb (AAM disabled) - 45.5 dB
    Seagate 750Gb (No AAM) - 53.0 dB
     
  7. Sep 27, 2006 #27 of 135
    RichB

    RichB Member

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    Apr 2, 2003
    Massachusetts
    For me, seek noise is the key. The problem is that seek noise and then the frequency become important which is not shown here. From what I can tell from the article, it seems to me that may be better off with the WD am AAM disabled. Better performance with not much cost in heat and noise.

    Here are reviews of the Seagate 750 and WD 500 that caused me to return Seagate 750 and order a WD500 instead:

    Seagate Barracuda 7200.10: Desktop Drives go Perpendicular

    WD Caviar SE16 500GB: Big Low-Noise Champ?

    Listen to the sound files.

    I plan to use the 500 for a while until a quite larger drive comes at a reasonable price. I will upgrade with DD so I wont lose my files.

    - Rich
     
  8. Sep 27, 2006 #28 of 135
    tgibbs

    tgibbs New Member

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    Sep 22, 2002
    It sounds like the DB35 7200.2 drives are designed for reduced seek noise, so they should be quieter.
     
  9. Sep 27, 2006 #29 of 135
    Woodstock2

    Woodstock2 New Member

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    Sep 16, 2006
    Sammamish, WA
    For those who upgraded capacity on their S3, did you install the new drive as a 2nd drive (i.e. keeping existing programming/settings), or did you replace the existing 250GB drive with the 500GB or 750GB drive? I'm very likley going to just wait until the eSATA interface is activated, but I may get tired of waiting.
     
  10. Sep 27, 2006 #30 of 135
    Bierboy

    Bierboy Seasoned gas passer

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    Jun 12, 2004
    Quad Sillies
    The only way to upgrade the S3 at this point in time is replacing the stock drive. There's no way to add an internal drive (as there is in the S2). And the eSATA port is inactive right now.
     
  11. Sep 27, 2006 #31 of 135
    Bodshal

    Bodshal Penguin-tastic!

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    Jan 4, 2005
    Cedar...
    Having said that, I'm pondering using one of those external arrays that presents on a single SATA connection and hooking it up to the internal SATA connector of the S3. Just for the hell of it. That would get you more than one drive on the thing, but with a cable hanging out the back. :(

    Chris.
     
  12. Sep 27, 2006 #32 of 135
    c3

    c3 TiVoholic

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    Sep 8, 2000
    Silicon...
    "Performance" is not really an issue for TiVo. DD or not, you can upgrade drive A only once.
     
  13. Sep 27, 2006 #33 of 135
    RichB

    RichB Member

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    Apr 2, 2003
    Massachusetts
    I am not worried about the performance of the upgrade but of the drives when in operation.

    Why can you upgrade the A drive only once?
    Why can't you upgrade to a 500 now then do a DD copy later on to
    a larger capacity?

    - Rich
     
  14. Sep 27, 2006 #34 of 135
    c3

    c3 TiVoholic

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    Silicon...
    Performance is not an issue "in operation".

    You can have 3 pairs of MFS partitions per drive. Factory drive already has 2 pairs. When you upgrade to 500GB, you add 1 pair, so it's "full".
     
  15. Sep 27, 2006 #35 of 135
    RichB

    RichB Member

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    Apr 2, 2003
    Massachusetts
    So, if I upgrade with a DD copy followed my a
    'mfstool add -x /dev/sda -r 4' I have the larger allocation units.

    Now a subsequent DD and MFSTool -r 4 will not expand the existing partitions?

    - Rich
     
  16. Sep 27, 2006 #36 of 135
    c3

    c3 TiVoholic

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    Silicon...
    There is no existing tool for partition expansion. You can only add partitions.
     
  17. Sep 27, 2006 #37 of 135
    RichB

    RichB Member

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    Apr 2, 2003
    Massachusetts
    OK. So to expand this unit, I will need to lose my programs. Hmmm.

    - Rich
     
  18. Sep 27, 2006 #38 of 135
    Bodshal

    Bodshal Penguin-tastic!

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    Jan 4, 2005
    Cedar...
    This discussion leads neatly into a potential problem down the road. If the eSATA port is enabled and is setup per current TiVo 2nd drives, people who already upgraded the internal drive will hit this problem if they try to add an external drive - they'll need to start from a virgin image, or a backup from before the upgrade.

    Moral: Keep the original drive (or its image) intact. :)

    Chris.
     
  19. Sep 27, 2006 #39 of 135
    c3

    c3 TiVoholic

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    Silicon...
    We don't know how external drive works yet, but most likely that is independent of the internal drive size. The limitation (so far) is 3 MFS pairs per drive, not per TiVo.
     
  20. Sep 27, 2006 #40 of 135
    jfh3

    jfh3 New Member

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    Apr 15, 2004
    Denver area
    Ah ha ... now the messages I saw after mfstool add make sense ...
     

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