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TiVo GODs, please help an old hacker!
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Posted by: RedWingsRULE!

I was one of TiVo's first customers and as soon as McD told us how (12/00), I replaced my original drive with an 80GB. Well, that's just not enough anymore, so I want to add another 120GB. I already have new utils but I'm not sure which scenario to follow so as not to lose my recordings.

mfsinfo reports the following:
MFS volume set for /dev/hda
The MFS volume set contains 4 partitions
/dev/hda10
MFS Partition Size: 512MiB
/dev/hda11
MFS Partition Size: 12098MiB
/dev/hda12
MFS Partition Size: 4MiB
/dev/hda13
MFS Partition Size: 65096MiB
Total MFS volume size: 77711MiB
Estimated hours in a standalone TiVo: 81
This MFS volume may be expanded 4 more times

Thanks in advance,

Posted by: Nihilator

Most of us would recommend only using a single drive in your TiVo, especially if one of the drives you want to use is two years old. Using two drives doubles your chances of losing everything when a hard drive expires.

Also, if you simply add the second drive as a B: drive, your swap space will not be able to support a Green Screen of Death recovery.

Your choices are:

(1) Use mfsadd to simply marry the two drives, leaving your 80GB as an A drive and adding the 120GB as a B drive. The simplest solution, which easily takes the least amount of time and saves all of your recordings, but the one most likely to give you trouble in the future. Aside from worrying that your 80GB might kick the bucket, you also will not be able to recover from a file system (GSOD) error, for lack of swap space.

(2) Do a pipe transfer of the 80GB to the 120GB using "-s 127" on the command line to increase your swap space. Test the drive alone in your TiVo, and then use mfsadd to marry the 80GB drive as a B drive. You will have saved your recordings, increased your swap space, and will have 200GB of recording capacity. This solution takes the longest to implement, and you still have the problem of depending on a two-year-old 80GB drive, but if you really want all that space...

(3) If it were my machine, I would do a pipe transfer of the 80GB drive to the 120GB drive and use only the expanded 120GB drive in the TiVo. 141 hours is enough for me.

--Chris