Roamio Plus won't recognize new HDD

It could be any number of things but maybe your new drive uses shingled (SMR) tracks which are a problem for things like NAS, security systems, and DVRs. Is your drive one of these? If so, I's recommend trying a non-SMR hard drive. Maybe you have a spare on hand (even a small one).

 

It can be also the hard drive using more power than the PS can handle. Since it has not gone to the "Almost there" screen, that may be it.

 

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Glad you are back in business. With SMR, to change data in a track that has been "shingled" over the changed data needs to be moved to virgin space or the overlapping track (and the track that overlapped it ... and so on) needs to be totally re-written after the first track is changed. On PCs a great deal of data that seldom changes so this is less a problem. But NVRs, DVRs, and NAS (to a lesser degree) run with the disk near full and write over old data all the time so this track-rewrite-domino effect is catastrophic, On Tivo, I suspect your problem was a full partition. For a long time, WD did not use SMR but then started using it on certain product lines without really telling folks. Bad on them.

 

How much space did you get on the 3TB? Will the unit automatically use all 3 TB?

 

That will happen if the drive is blank, not when there is an image already on it. And, as long as the drive will work in it.

 

If the drive is defective and you're going to replace it, can you put the new drive in and get it formatted and then copy all of the existing data over to the new drive?

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Not on a Tivo drive, when its failed, its really failed, no way to access anything. You cannot copy any parts, its either the whole drive or nothing. There are no files accessible if you were to hook it to a computer.

 

The drive still works but I have a feeling that it's starting to fail

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This thread may be helpful: Transferring saved recordings to a new Tivo model

 

That requires the drive to be still running in its Tivo, then transfer shows to the computer and then back to Tivo. That is great for older Tivos with <v21 Tivo software, but on v21, that will not happen to get shows to the Tivo running the v21/Hydra/TE4.

 

I've been using WD's Surveillance Purple (the old WD A/V line equivalent/replacement) HDD designed/marketed for surveillance DVR's for use with very high number of "channels" or cameras, so they should handle multiple tuner TiVo DVR's just fine. I have been very pleased with them so far, and they are not SMR. Also, the Purple is the preferred for DVR 5400rpm.

While the warranty is only 3 years, I suspect this is to cover WD's behind with surveillance DVR systems that have as many as 30+ channels running 24/7 (WD claims the HDD can handle something like 64 channels/cameras, IIRC). So, I would suspect that a TiVo running a maximum of 6 tuners 24/7 is going to last longer than 3 years because that is nowhere near as brutal a beating of a 30+ channel surveillance DVR running 24/7. I believe I've passed the 3rd year of one of my purples and no hint of any problems.