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Root Rom manager will now partition your sd card

OMJ

OMJ

Bazinga
I just noticed today that the feature is there. I am going to give it a shot later once i have everything backed up on my pc
 
Actually class 6 is what is recommended for good results. I also read some war stories of people frying slower cards (permanent read /write errors). I'll pass for now.
 
shrink57 said:
Actually class 6 is what is recommended for good results. I also read some war stories of people frying slower cards (permanent read /write errors). I'll pass for now.
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yea I am testing it out with a 2gb sd card I had lying around. When I have some downtime I will let you guys know what results if any I have
 
So I played around with it for a little while and it works. I tried a bunch of different programs and most worked fine. Had 1 that force closed when I tried to use it though. I tried google earth to get something really intensive but it only took up 6mb on the sd card so it obviously is not totally there but it did work as usual no lag. When I took out the sd card everything I installed including Google earth was gone though.

Like I said most apps worked just fine a few were a little laggy. If anyone has an app they want me to try before I turn it off and switch back to my normal sd card let me know and I will give it a shot.
 
sorry to double post but I found this on cyanogenmod forums when trying to find some info about Apps2sd.

Just wanted to make an important point about SD cards and speeds for those considering this mod.

While the theoretical benefits of having a class 6 or higher card for apps2sd and swap suggest it would be worth the investment, the Droid has a hardware limit on the system bus to class 2 transfer rates.
This means any internal transfers between the card and phone will not show any improvement from the higher rated cards and the speed of the swap on the card is likewise limited.
This is not something that can be changed or "fixed" at the kernel or OS level at all, although I have it on good authority from one of the original engineers who worked on the Droid that this can be modified
"with a bit of luck and the right low level access" and I have discussed it with Taz(SGX) and others at DM and they have it on a back burner to look into.

As of now though, this is an absolute limit on the system bus and will have a significant bottleneck effect on these mods as a result. You will see higher transfer rates with faster cards between the card and your PC if you use it to store a lot of media that you change often. So that may be a factor in your decision to purchase a higher class card, but until someone does some really tough work with a Beagle Board or other JTAG type of debugger, there is no solution for the problem.

I don't want to rain on everyone's picnic and think this is a major advance for us in the Droid world, but I did want to make that point clear so people's expectations are not unrealistic regarding the performance achievable at this stage. Very few users and even devs seem to be aware of the issue, unfortunately.
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thread it was in can be found

Apps2Sd On The Droid Anyone? - CyanogenMod Forum
 
Interesting...same issue appears on cameras, where transfer speed can be limited by the bus more than the card speed.
 
tom108 said:
don't you need at least a class 4 card? i thought the stock ones were class 2
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When I first got my Droid, I tested the included Class 2 on a PC and benched it against a Class 6 I had lying around - the stock Class 2 was faster by a decent clip, something around 20MB/s vs 16-18MB/s.
 
I am trying to use Rom Manager to partition a SD on a HTC Desire running REDUX 1.2, it goes into boot mode (droid with a triangle and exclamation mark) and seems to just hung. The longest I have waited is 15 minutes. I have also attempted the same running Gingervillian. Can any one tell me how long you need to wait or have I done something wrong? I have only just started experimenting with different ROMS.
 
Redflea said:
Interesting...same issue appears on cameras, where transfer speed can be limited by the bus more than the card speed.
Click to expand...



Folks folks (*screeching brakes*) all great observations here an all my very well be noticed however I'm finding more and more people are misinformed of the "Class Rating". First off here's the kicker... ALL of the classes of MicroSD cards have the same "maximum speed rating"... yes its true. The Classes differentiate the MINIMUM speeds. Basically the rating is stating that the particular card will always read/write and a minimum of that speed... but it'll never go higher than the max for MircoSD (It's right around 15mbps.) I just picked up a "16GB Class 10" for about $35. That is really the best I would recommend 'as of right now'. Let me tell you why... The Class 10 should perform no less than 10mbps read/write. A Class 4 typically has a minimum of performing no less than 4mbps. So thats why a higher class rating is a performance factor. Now for the good old 32GB MicroSD :) well that is just two (2) 16GB boards stacked on top one another... accessing it to read/write is still limited to that same bus that a 4GB would use. Therefore there is no performance value for a higher capacity card above 16GB. The only advantage is you have more storage capacity. So that's the scoop on the Class Ratings and Sizes. THere is a new format coming out soon where this will change so standby... :)
 
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