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Hard Drive Upgrade Info

Discussion in 'TiVo Roamio DVRs' started by amseven11, Aug 20, 2013.

  1. Sep 8, 2013 #1061 of 3265
    morac

    morac Cat God

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    Mar 14, 2003
    NJ
    For Motorola cards, there's three pairing numbers: host, card and data. All three are needed for pairing. The host is hard coded on the TiVo main board like you said. Likewise the card number is hard coded on the card. The data number is dynamically generated though and stored on the drive. I never understood the need for 3 numbers since you'd think the host and card numbers would be good enough, but that's what CableLabs/Motorola came up with.

    Scientific Atlanta/Cisco cards only display the host and card numbers. I'm not sure if they lose pairing if the drive is swapped. I would think they wouldn't, since as you said those two numbers are static.
     
  2. Sep 8, 2013 #1062 of 3265
    lessd

    lessd Active Member

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    CT
    The data number is dynamically generated and stored on the drive as you said but also stored on the cable card itself, it is not a fixed number on the cable card, that why if you remove the cable card from say TiVo 1 and install it in TiVo 2 then put it back into TiVo 1 the card will need to be re-paired as the data will have changed, at least this is what happens in Comcast land in CT. Because the data is different than the head end has, it will never self pair until you call Comcast.
     
  3. Sep 9, 2013 #1063 of 3265
    MisterWho

    MisterWho New Member

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    Oct 7, 2007
    For what it's worth, I bought the second one (WD30EZRX) because it was what Staples had in stock and I had rewards to spend there.

    I installed before ever plugging in the brand new Plus and it worked as expected. Have rebooted a few times and have had no problems (I did not run the wdidle3 thing).
     
  4. Sep 9, 2013 #1064 of 3265
    morac

    morac Cat God

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    Mar 14, 2003
    NJ
    Not exactly. The host and card store each other's authentication keys as well as the generated shared private key. That's why inserting a card into a different device causes the card to become unpaired, because there's a mismatch of the host authentication key.

    See chapters 3 and 8.3 in:

    http://www.cablelabs.com/opencable/downloads/specs/OC-SP-CCCP-IF-C01-050331.pdf


    Actually I'm not sure what the generated Data ID is used for exactly since it's not in the CableLabs spec and only Motorola Cards have it. It's more or less unnecessary because 1024 bit encryption is used to exchange the keys between the host and card. It looks like Motorola was simply paranoid and added another check.
     
  5. Sep 9, 2013 #1065 of 3265
    jmbach

    jmbach der Neuerer

    1,551
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    I have Charter and the Data ID gets regenerated when I eject the card (Motorola M-Card) either with TiVo on and reinsert it or shut down the TiVo, eject the card, boot the TiVo and reinsert the card.

    These trials were done with Charter Tech support during a troubleshooting call. Hardest part was to convince them that they needed to re pair the card. Which of course had to go to a higher level support.
     
  6. Sep 9, 2013 #1066 of 3265
    cr33p

    cr33p New Member

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    Jan 2, 2005
    Ann Arbor MI
    I have Comcast and my machine does the same as well, I had a paired card, inserted a different card, re inserted original paired card, and a new Data ID was generated.
     
  7. Sep 9, 2013 #1067 of 3265
    HeatherA

    HeatherA Old AVS Forum Member

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    Jan 9, 2002
    A few pages back I posted a WD green drive from Microcenter that we were going to pick up. We put it in our new Roamio Basic and all is well. It's running wonderfully.

    Knock on wood :)
     
  8. Sep 9, 2013 #1068 of 3265
    late for dinner

    late for dinner Past Expiration Date

    1,057
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    May 17, 2013
    Colorado...
    I quick thanks for the information provided here that helped me reuse a drive to upgrade my Roamio!
     
  9. Sep 9, 2013 #1069 of 3265
    lessd

    lessd Active Member

    7,695
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    Jan 23, 2005
    CT
    You can remove a paired cable card and put it back in the same TiVo with or without power and it will remain paired, if you put the Cable card into any other cable card slot like another TiVo the pairing with the original TiVo will be lost, if you put another cable card into the original TiVo than put the original cable card back into the original TiVo the pairing will be lost.
    The above is a Comcast system in CT using Moto cable cards: YMMV

    You can retain the pairing only by making a bit by bit copy of your original drive, the SN of the drive does not matter.
     
  10. Sep 9, 2013 #1070 of 3265
    HarperVision

    HarperVision TiVo's Italian Cuz!

    5,275
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    May 14, 2007
    Paradise...
    It did for me with Oceanic Time Warner.
     
  11. Sep 9, 2013 #1071 of 3265
    cr33p

    cr33p New Member

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    Jan 2, 2005
    Ann Arbor MI
    Funny thing though, no matter how many times I tried, I could not get any channels to tune moving my Cable Card from my XL4 into the Roamio, the card was already unpaired since it was originally in my Premiere, installed into the Xl4 and operating for 10 months that way. I had hoped to just swap them as well, but it did not work. Went through two cards before getting everything set up. Now that my Roamio is paired I realized how many channels where not coming through. LOL
     
  12. Sep 9, 2013 #1072 of 3265
    lessd

    lessd Active Member

    7,695
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    Jan 23, 2005
    CT
    Each cable system is different, I only know Comcast in CT, I was not commenting on Time Warner or any other cable system.
     
  13. bob61

    bob61 Member

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    Apr 22, 2002
    Did my install last night. Pulled cable card, Comcast,from my original TiVo and installed in new Roamio. Powered up, did setup and receiving channels with having to call Comcast. I don't have premium channels but have all other channels and all come through fine.

    Sent from my DROID RAZR HD using Tapatalk 4
     
  14. vurbano

    vurbano New Member

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    Apr 20, 2004
    I use the first one in all my tivos. I use the second type in a 10TB software flexraid storage pool for storing ripped BD's and etc on my HTPC
     
  15. Rkkeller

    Rkkeller Active Member

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    May 13, 2004

    That is the one I installed for a friend and he has had no problems. I didn't do anything either, just put it in.
     
  16. bdspilot

    bdspilot New Member

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    Dec 10, 2010
    Saw this on Weaknees today. Ipm guessing they are using a 4TB external. I wonder if I could replace the 500Mb drive n my current expander with a 4TB version.

    Currently, we’ve got a 7 TB unit up and running. Not sure how soon we’ll have kits for it, but we’re pounding away at it to make sure it’s stable.
     
  17. TC25D

    TC25D New Member

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    Aug 21, 2013
    Somewhere earlier in this thread someone did and it did not work.
     
  18. bdspilot

    bdspilot New Member

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    Dec 10, 2010
    Thanks for the heads up. Still interesting to see what Weaknees comes up with.
     
  19. jmpage2

    jmpage2 New Member

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    Jan 20, 2004
    I would imagine that most people who want 7TB are wanting to archive tons and tons of shows on their TiVo for potential re-viewing years later.

    Seems like a poor approach to me. Add an external esata drive to the TiVo and if EITHER drive has a problem you will lose all of those recordings. Better to offload them to a NAS or something similar of archiving is your thing.
     
  20. aaronwt

    aaronwt UHD Addict

    19,167
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    Jan 31, 2002
    Northern...
    Yes a very poor approach at least until TiVo implements better management. I hit 50% on my Roamio Pro last night. The My Shows list is becoming extremely long and becoming a pain to manage. I couldn't imagine storing 7TB of content on the actual TiVo. That would be a pain to wade through. It's much easier to archive it on my TiVo Desktop. At least I have that option with all my channels except HBO and Cinemax.

    When I had both of my Elites I had more content on each Elite than I i have on my Roamio Pro. But I had the Season Passes split between both boxes so I also had less folders on each one to wade through.

    I'm just not accustomed to having to page down several times to watch something I recorded only a few days ago. At least it is fast browsing the My Shows List with the Roamio.
     

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