Dual drive 2TB Series 3 (1 drive failing)...NEED HELP

Discussion in 'TiVo Upgrade Center' started by jhill1977, Oct 7, 2011.

  1. Oct 7, 2011 #1 of 17
    jhill1977

    jhill1977 Member

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    ***UPDATE***

    The primary internal drive in my dual drive 2TB Series 3 is on the way out. Before the drive totally dies, I'd like to copy the contents to a new 1TB drive. I only have one spare 1TB Seagate drive lying around. Is there a way to be able to simply make a mirror image copy using MFSLive or WInMFS of the existing primary drive, and then connect up my existing 1TB external, or do I need to have a PAIR of new 1TB drives to complete the task at hand? WinMFS seems to only want me to allow me to copy from the existing 2TB pair to a NEW 2TB pair of drives. HELP...!!!

    ***UPDATE***

    Well I managed to find another SPARE 1TB Seagate drive, so I have a pair of new 1TB drives ready to put into service. That being said, what is the best way for me to get all my exiisting recordings over with the highest chance of success? I'm thinking WinMFS is my best bet. Overall the existing internal drive still works well, but I have noticed a few freezes during recent recordings..and the Kickstart 54 SMART test indicated a read element failure on the internal drive.

    Thanks..

    Justin
     
  2. Oct 7, 2011 #2 of 17
    ThAbtO

    ThAbtO TiVoholic by the bay TCF Club

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    Since Tivo stores its recording on BOTH drives at once, when you divorce the drives, the recordings are lost, or unallocatable. If you want to save your recordings, simply transfer them over to your PC. Transfer them back in when you have replaced the malfunctioning drive.
     
  3. Oct 8, 2011 #3 of 17
    Soapm

    Soapm Active Member

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    If your doing all this you should look for a single 2TB drive which will save you from that divorce business...

    However, I understood what you mean about mirroring the drive and in theory it should work but I don't know of an application that can mirror your drive like that.
     
  4. Oct 8, 2011 #4 of 17
    unitron

    unitron Well-Known Member

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    The MFS Live cd has the command line utility

    dd

    and another command line utility

    dd_rescue

    which pretty much will do everything

    dd

    will do, and then some, and is a little easier to use, and, unlike

    dd

    will show you what's going on if you include the "verbose" option

    -v


    You can use it to copy one drive to another of equal or greater capacity, and it has options that can help it copy "problem" drives, which apparently you have.

    There's another utility out there called

    ddrescue

    or

    GNU ddrescue

    but it's not on the MFS Live cd, as far as I know. I mention it here so that you won't be confused when you go googling to learn how to use

    dd

    or

    dd_rescue


    All three copy bytes without regard to what's in them, so it doesn't matter if it's a TiVo drive or a drive out of a PC or a Mac or whatever.


    If you copy to a drive with greater capacity, it'll still have the boot and partition information of the source drive and so will act smaller than it is if you don't do anything else. There are times when that can be a good thing.
     
  5. Oct 8, 2011 #5 of 17
    dianebrat

    dianebrat wait.. I did what? TCF Club

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    An original S3 can not take a 2TB single drive, the next gen TivoHD can.
    The preferred full capacity setup on an original S3 is 2x1TB
     
  6. Oct 8, 2011 #6 of 17
    Soapm

    Soapm Active Member

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    Didn't know that but wasn't it once believed a TivoHD (not XL) couldn't take a 2TB? That's whats in the faq. I'm just wondering if anyone tried with the tools available today???
     
  7. Oct 8, 2011 #7 of 17
    dianebrat

    dianebrat wait.. I did what? TCF Club

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    Yes. this comes up very frequently, the TivoHD can use the tools developed for the Premiere to allow it to take advantage of a single 2TB drive, the Series 3 does not have that same capability. At this time there is no user accessible way to get a single 2TB drive in an S3, although several aftermarket sources have done it.
     
  8. Oct 9, 2011 #8 of 17
    jhill1977

    jhill1977 Member

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    Thank you for the recommendations. One quick question, should I be able to copy my single failing drive to a second drive of equal size? Also, can anyone provide help with the command line syntax for dd or dd_rescue. I'm definitely not LINUX savvy, and I don't want to inadvertently copy the drives backwards.

     
  9. unitron

    unitron Well-Known Member

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    I do believe I said something about "...when you go googling to learn how to use...":)


    Actually, dd_rescue has an option to let you copy the drives backwards.

    By which I mean it starts reading the source drive at the end of it and writing that to the end of the target drive.

    It refers to that as doing it in reverse, which is why the option is

    -r

    Generally this works best on drives of the exact same size/capacity, and can sometimes be the better way to rescue stuff from an ailing drive.

    What you are concerned about, I'm sure, is overwriting the source drive with whatever is on the target drive.

    The dd utility, which has roots that go back further than UNIX, uses a syntax different from most UNIX/Linux commands, and you'd probably be better off to avoid it


    The dd_rescue syntax is basically

    dd_rescue options source target

    where options are designated by a leading hyphen.


    If you just said

    dd_rescue /dev/hda /dev/hdb

    it would start reading the source drive, in this case the device attached as master to the primary PATA/IDE controller and it would write what it read to the device attached as the slave to the primary IDE controller.

    If you said

    dd_rescue -v /dev/hda /dev/hdb

    you'd get the same thing, with a lot more information on the screen as it was happening, the "v" standing for "verbose".

    If you do

    dd_rescue -h

    or dd_rescue -?

    you'll get the small help file, which is basically the syntax structure I mentioned earlier and a list of options.
     
  10. Mr. E

    Mr. E New Member

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    I had the exact same situation a few months back with my TiVo HD (a 1TB internal + 1TB external upgrade from the stone ages before 2 TB drives even existed). I used dd_rescue on the MFSLive boot CD to make bitwise image copies of both disks to new AV rated 1TB drives, and everything worked like a charm.

    Since we're talking about the internal+external upgrades, does anyone know if there's a solution that would allow me to combine a 1 TB internal and 1 TB external to a single 2 TB internal? It would be nice to eliminate that second point of potential failure.
     
  11. unitron

    unitron Well-Known Member

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    I think that would have to start with figuring out exactly how TiVo spreads a single show over both drives to know what it looks for when it puts the pieces back together.
     
  12. Soapm

    Soapm Active Member

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    Sounds easier to copy the shows to a PC then move them back to the Tivo after the upgrade. But sometimes its fun just learning...
     
  13. unitron

    unitron Well-Known Member

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    The catch, of course, if is those shows have the no-copy bit set.

    A problem that only came along with digital channels and S3s.
     
  14. Mr. E

    Mr. E New Member

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    Thanks, I did do a little more looking around last night, and it seems that the TiVo HD spreads individual recordings across both disks, so a recombine may be impossible. Not a big deal... I'm thinking I might eventually upgrade to a Premiere Elite anyway, once 4 TB AV drives are out and there is a DIY upgrade solution to a 4TB internal Premiere. :cool:
     
  15. Soapm

    Soapm Active Member

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    Does the no copy bit effect MRV or just Tivo ToGo?
     
  16. unitron

    unitron Well-Known Member

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    As far as I know, if the bit is set, you can't copy it from the TiVo on which it was recorded to either a computer or another TiVo or anything else as a TiVo recording, or any other kind of digital file.

    I suppose you can go from the red, white, yellow RCA line out jacks to a VCR and make an analog tape of it.
     
  17. MikeAndrews

    MikeAndrews Registered abuser

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    You can use 1.5TB drives and get 1.3TB usable space on each.
     

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