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  #13  
Old 04-19-2011, 12:16 PM
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Re: I thought the 730N RHR has a 30GB Hard Drive???

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Originally Posted by slampert View Post
Au contraire I think.... The system partition (which must contain the OS, NAV, and POI databases) can easily take up 18GB.

Even the old REC NAV system that we had in the WK's required dual layer (7GB) DVD's for their Navtech databases. Those systems are far less sophisticated (both graphically and content wise) than what we now have with the RHR's.....
Hate to disagree with you but I seriously doubt there is 18GB of Nav and OS data on the HD. The dual layer discs contain 6.81GB - 7.59GB depending on the version.

Just sayin' something isn't right...............
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  #14  
Old 04-19-2011, 07:08 PM
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Re: I thought the 730N RHR has a 30GB Hard Drive???

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Originally Posted by hound View Post
has anyone found a way to put a larger HD in the NAV units yet?
I'm sure it's just a regular old 2.5" PATA notebook drive, since I don't think SATA drives were even made in 30GB sizes.

It does seem strange they went with 30GB when they could have put a 250GB or larger drive in there for next to nothing.. so I'm wondering if it's some sort of software limitation.

The process to swap in a larger drive would be fairly 'simple' if you can gain physical access to the drive... first trick would be to find out what kind of disk format it uses... I'm betting it's the regular old MS-DOS format or possibly Linux EXT2... you'd need to clone the drive bit-to-bit, then expand the partition table then file system...

If I get a few extra hours one of these weekends, I'll pull the thing apart and write something up... I'm not terribly motivated to do this, though, since I ended up just grabbing an old 120GB iPod Classic off ebay (with a broken screen), and loading it up with music... it's a hell of a lot easier to sync and keep the music updated that way..
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  #15  
Old 04-19-2011, 07:10 PM
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Re: I thought the 730N RHR has a 30GB Hard Drive???

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Originally Posted by Dan JGC View Post
Hate to disagree with you but I seriously doubt there is 18GB of Nav and OS data on the HD. The dual layer discs contain 6.81GB - 7.59GB depending on the version.

Just sayin' something isn't right...............
It's highly compressed on the discs. I'm betting it's stored uncompressed (and additional indexes are created as it's installed) on the hard drive for fast access.

I doubt the OS is larger than a few hundred megs.. there's just not much there... hell, even the OS that runs an iPhone is under 1GB, and it's a hell of a lot more complex than the RHR.
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Old 04-19-2011, 08:43 PM
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Re: I thought the 730N RHR has a 30GB Hard Drive???

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Originally Posted by xtex404 View Post
It's highly compressed on the discs. I'm betting it's stored uncompressed (and additional indexes are created as it's installed) on the hard drive for fast access.

I doubt the OS is larger than a few hundred megs.. there's just not much there... hell, even the OS that runs an iPhone is under 1GB, and it's a hell of a lot more complex than the RHR.
The REC doesn't write the data from the DVD to a harddrive since there is no harddrive in the REC so don't know about the highly compressed part on the DVD since it would have to go through a lot all the time to read the darn thing....I'm assuming you mean that the DVD is ripped to the harddrive on the new RHR? Anyway, seems like advertising a 30 GB HD when 18 GB is used for something else doesn't seem right....
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  #17  
Old 04-20-2011, 07:21 AM
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Re: I thought the 730N RHR has a 30GB Hard Drive???

I have a new Overland on order. When I was deciding whether to buy one off the lot that had the 430 or order and wait for the 730RHR, my very knowledgeable sales guy warned me that, while both have the same hard drive capacity, the RHR NAV with the Sirius Traffic link and enhanced features takes up much more of the hard drive capacity. Makes sense to me and I still opted to wait for the RHR.
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  #18  
Old 04-20-2011, 09:19 AM
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Re: I thought the 730N RHR has a 30GB Hard Drive???

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Originally Posted by xtex404 View Post
I'm sure it's just a regular old 2.5" PATA notebook drive, since I don't think SATA drives were even made in 30GB sizes.
You can't buy 2.5" PATA drives anymore, at least for any price that makes sense. The industry has switched over to SATA. And I never saw a 30GB drive; the sizes were 5, 10, 20, 40, and 80.

I'm no longer pretty sure the "hard drive" is actually a solid-state drive made from flash memory, like in any modern iPod. A rotating-media drive is sensitive to shock; the one I'm working with right now specifies a max of 400G over 2 milliseconds or 225 G/1ms. That's not what you want in an off-road vehicle.

Edit: now that I have my WK2, I can hear that it has a rotating disk. I don't understand why that's cost-effective. You can get a class 2 32GB SD card for $20 in volume.
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Old 04-20-2011, 11:51 AM
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Re: I thought the 730N RHR has a 30GB Hard Drive???

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Originally Posted by xtex404 View Post
I'm sure it's just a regular old 2.5" PATA notebook drive, since I don't think SATA drives were even made in 30GB sizes.

It does seem strange they went with 30GB when they could have put a 250GB or larger drive in there for next to nothing.. so I'm wondering if it's some sort of software limitation.

The process to swap in a larger drive would be fairly 'simple' if you can gain physical access to the drive... first trick would be to find out what kind of disk format it uses... I'm betting it's the regular old MS-DOS format or possibly Linux EXT2... you'd need to clone the drive bit-to-bit, then expand the partition table then file system...

If I get a few extra hours one of these weekends, I'll pull the thing apart and write something up... I'm not terribly motivated to do this, though, since I ended up just grabbing an old 120GB iPod Classic off ebay (with a broken screen), and loading it up with music... it's a hell of a lot easier to sync and keep the music updated that way..

If it's anything like the RER, it's a QNX operating system and uses one of their QNX partition types. I pulled out the RER some time ago and grabbed a copy of the partition. I couldn't find any linux distro (or kernel support) for mounting the filesystem. I did get a trial of QNX and was able to mount the filesystem. I also cloned the drive to a larger drive, and extended the music partition. When I put it back in, the RER interface still showed the exact amount of free space available as before even though I knew there was more and could verify it when mounted via a QNX OS. I stopped playing with it at that time and just decided to use my iPod. I have no idea if the RHR is the same way though.
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  #20  
Old 04-20-2011, 03:43 PM
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Re: I thought the 730N RHR has a 30GB Hard Drive???

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Originally Posted by Tinkan View Post
Just letting you know. I have the 430n RHB and it is 28Mb available.
430N or 430??
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Old 04-20-2011, 04:04 PM
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Re: I thought the 730N RHR has a 30GB Hard Drive???

Here is a big question, on the new RHR can you hook up a external HDD in the console and play from it or do you have ot move songs to the main drive? Should let you play from that USB drive. If that is true then go to BestBuy and get you a 1TB ext USB drive and load it up and put in your armrest and your all set.
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  #22  
Old 04-20-2011, 08:06 PM
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Quote:
Originally Posted by ArmyRXP View Post
Here is a big question, on the new RHR can you hook up a external HDD in the console and play from it or do you have ot move songs to the main drive? Should let you play from that USB drive. If that is true then go to BestBuy and get you a 1TB ext USB drive and load it up and put in your armrest and your all set.
The problem with regular hard drives is that they are very vulnerable to temperature (cold) and movement as someone else mentioned earlier.
I was thinking about getting a 32GB USB flash drive on eBay, loading it up and putting it in the armrest. That should work, right? Will it play music directly from a thumb drive?
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  #23  
Old 04-25-2011, 04:45 PM
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Re: I thought the 730N RHR has a 30GB Hard Drive???

Anybody ever solve the mystery of why the 30GB hard drive in the RHR only has 11GB of user space?
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  #24  
Old 04-25-2011, 07:43 PM
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Re: I thought the 730N RHR has a 30GB Hard Drive???

Not really a mystery. This is not your typical PC or notebook.

To keep costs down, these (as well as most) aftermarket car radios use special single platter automotive grade hard drives, more expensive and rugged than typical notebook drives. Cheap SSD is not ready for automotive application. Car temperatures kill them, so you need expensive SSDs. A 30 Gig rotational automotive drive is about as large as you can get for about $100. Toshiba has some 100GB drives out for about $200. The 30 GB in industrial SSD is near $1000.

The RHR OS and support systems seems to be a drive capacity hog with much overhead, possibly to support error correction. It is also possible that the drive is partitioned smaller than 30 Gig for reliability purposes. (remember a 30GB hard drive formats to less than 27GB available space, much less if they employ sophisticated error correction schemes). Non Nav radios have a lot more user available space.

The RHB seems to be less bloated with less overhead, so gives you a bit more space for the user.
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