For chuckles I ran the following a few times: dd count=1k bs=1M if=/dev/zero of=${test location}/crap.dd
Internal memory yields variable performance (I've got as high as a bit over 16M/s) but seems to pretty stable at roughly 10M/s, like a Class 10 MicroSD (I don't know what if any scales are normal for eMMC). I tested both with BusyBox in /mnt/sdcard and with GNU coreutils in my Debian chroot. This is a far cry from my work station, which almost pulled 60M/s on it's SATA drive but eh, who am I to complain as long as it beats my phones MicroSD. Just wish the prime managed heavy disk writes better.
My 8GB Class 4 SanDisk MicroSD card lives up to it's 4M/s rating when in the port. Using an adapter in the dock doesn't seem to be any real problem.
Now my 4GB Kingston Data Traveler.... gives > 1M/s but much less than <2M/s in the dock. Just to be sure I plugged it into my work station for a single test, and got 2.2M/s.
ASUS advertises USB 2.0, and my work station has a Core 2 Duo E8400, so I'm sure it's secretly a USB 1.1 problem . I think this goes to show, if you want a cheap method of storage, it's probably better to get a cheap MicroSD card. Especially with how many x86 systems now have them.
Sent from my Transformer Prime TF201 using Tapatalk
Related
The 32gb athena mod thread has been about for a while, but with the imminent release of 16gb micro sdhc's and 32gb micro sdhc's to follow shortly after is there still a need for such a mod?
Would you risk bricking your device and voiding your warranty to install an ssd or prefer a memory card as an alternative. I am reliably informed that the read/write speed of internal drives is quicker in benchmarking tests, but how much bearing does this have on performance? what i know from experience is that the transfer speed of sdhc cards with a reader is much quicker than the software alternatives of wm5torage and activesync.
I would like to hear what you think the advantage of an ssd over a memory card of the same capacity is. If you were to buy a 32gb card would you even consider removing or disabling the microdrive to save battery life? Or would you prefer the full 40gb and utilise the two storage mediums for different purposes?
I think replacing the internal microdrive with a 1" SSD would help battery life as well as give us even more potential capacity. We would be able to have full movies on the drive instead of having to use an SDHC card with the lower transfer rate.
adamelphick said:
I think replacing the internal microdrive with a 1" SSD would help battery life as well as give us even more potential capacity. We would be able to have full movies on the drive instead of having to use an SDHC card with the lower transfer rate.
Click to expand...
Click to collapse
The speed of an SDHC card versus an SSD for viewing movies is completely irrelevant. An SDHC is MORE THAN FAST ENOUGH to watch a movie smoothly, even one of a very high bitrate.
The transfer speed of files TO an SDHC card using a card reader is VERY HIGH in comparison to transferring files over activesync or via WM5torage to an internal drive however. This for me is the crucial factor, since i'd much rather be able to copy new films onto a card as quickly as possible. The only way the extra speed of an internal drive might make a difference is with the installation of programs, but you would still be able to install programs to the 8gb microdrive AND have a 32gb card.
Try copying 2gb of data to your microdrive with wm5torage, and 2gb to an sdhc card with a reader.
Actually, my choice is C, which is to do BOTH the options listed.
That's basically what i said eaglesteve.... don't want to limit out memory potential... the MD is cack compared to a decent SSD module - not due to its access times which for MD are good, but due to its shock resistance and battery life.
I agree, Both would be great, but the cost of the 32 Gig unit is going to be a lot more than the difference between the X7500 price and the X7510s.
Realistically our current options pricewise will be the X7510 with 16Gig internal and a 12Gig MicroSD card.
G
For me, replacing the 8GB MD with a 32GB SSD would be, as they say in the UK, "the dog's bollocks..." I am a pilot and the MD, in addition to its shock and vibration sensitivity, is only good for 10,000 ft and below in unpressurized cabins. This alone would be enough to make me switch. Mechanical disks are in the early stages of extinction.
So my EEE Pad Transformer TF101 died (a very sad day for me). The warranty I purchased with the Transformer gave me an instant replacement and as it happens an upgrade to the Transformer Prime 32GB TF300T with the dock.
I have observed 2 things.
1: when transferring files from my Patriot 16GB USB 2.0 thumb drive the files transfer quickly at the expected speeds (around 10mbs). This is consistent regardless of the file format on the USB drive.
2: When transferring files from my Corsair 64GB USB 3.0 thumb drive the files transfer painfully slow. It takes around 10 minutes to transfer 300mb. I have tried NTFS and exFAT for file formats and neither improve the performance.
My question is, is this common? Has anyone else come across this problem. Is there a compatibility issue with 64GB thumb drives?
Any thoughts would be appreciated.
Thanks
I don't know if this is relevant but my hard drive is also a USB 3.0, and I just tested by copying a 700mb movie file, and it did it in probably under a min or possibly a little bit over. But definitely no where near 10 min for sure.
I have unlocked my prime and flashed Custom roms on it. Not sure if the custom roms plays a part in that effect?
Hope that helps.
wrunk said:
So my EEE Pad Transformer TF101 died (a very sad day for me). The warranty I purchased with the Transformer gave me an instant replacement and as it happens an upgrade to the Transformer Prime 32GB TF300T with the dock.
I have observed 2 things.
1: when transferring files from my Patriot 16GB USB 2.0 thumb drive the files transfer quickly at the expected speeds (around 10mbs). This is consistent regardless of the file format on the USB drive.
2: When transferring files from my Corsair 64GB USB 3.0 thumb drive the files transfer painfully slow. It takes around 10 minutes to transfer 300mb. I have tried NTFS and exFAT for file formats and neither improve the performance.
My question is, is this common? Has anyone else come across this problem. Is there a compatibility issue with 64GB thumb drives?
Any thoughts would be appreciated.
Thanks
Click to expand...
Click to collapse
I found copying files to/from USB drives to be very slow regardless of the drive. I have an 8GB sandisc drive that was ridiculously slow. The fix was (sadly) unlocking and going with Androwook rom. Now it's at least comparable to my windows tablet.
You can try unmounting/remounting the drive from settings. It appears to be related to the IO performance issues you can read alot about. The JB update for Prime should hopefully fix the issues by bringing in newer drivers from nvidia.
Thanks for the information and tips. I guess I will use my old 16GB USB key for now and hope that JB solves my problem. It is strange to me that the 64GB USB Key worked fine in the original TF101 and dies in the newer TF300T.
Thanks again.
Hey guys..
I am thinking about buying a new SDcard.
I have thought about buying a microSDHC with adapter to be able to use it in other devices (smartphones) too. Will I use performance because of the adapter? Anyone has tried this?
Thanks in advance
edit: I am thinking about buying one of these sandisk ultras with 32 gb
I do not think the adapter has any impact on the card's internal mechanism from where the performance comes. It would be like an external SSD having different performances depending on the size of the USB cable, which doesn't make sense. Unless the adapter is of very poor quality...
The thing that might affect performance is the device that is using the card (device's card-reader quality, device's performance).
So i am deciding now between an sandisk ultra or an sandisk ultra extreme. Will the Prime be able to handle the improved reading/writing speeds of the "extreme" one? People seem to need usb3.0 card readers to fully handle the speeds, so i am a bit in doubt, that the prime can use it?
Hi i am doing a German exchange in April what means I will be sitting on a bus for over (5 hours not including plane) .
I have bought an Anker external battery to run external hard drives but I need help to know which one to put films on to play over the otg and what is the biggest storage space the otg can support. I cannot decide if a memory stick, Hard drive or and ssd would be better.
All help would be greatly appreciated.
i'm not 100% sure if there is a limit to the size, but...
the limit is for sure the amount of power the external device needs
so you can forget about an hdd or ssd if it's not powered separately
i'd go with a usb stick
one guy here at the forum suggest to me to use SanDisk 8GB as that is what worked for him
i gambled a bit and went for 16GB and it works like a charm
so if you want to raise the stakes go for the 32GB and report back if it works
btw. it's SanDisk Cruzer Blade
you can get it on ebay if not your local store
good luck and have a safe trip
Astral07 said:
i'm not 100% sure if there is a limit to the size, but...
the limit is for sure the amount of power the external device needs
so you can forget about an hdd or ssd if it's not powered separately
i'd go with a usb stick
one guy here at the forum suggest to me to use SanDisk 8GB as that is what worked for him
i gambled a bit and went for 16GB and it works like a charm
so if you want to raise the stakes go for the 32GB and report back if it works
btw. it's SanDisk Cruzer Blade
you can get it on ebay if not your local store
good luck and have a safe trip
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Click to collapse
I got a 320gb working but i had to do ntfs app, i was more wondering which one would be the best to be travelled and will still work after a long bumpy journey, (ssd, Hdd,Memory stick)
Any one of them will work...bumpy journey or not. Still, i would say a stick is the easiest one to travel with... taking size and weigth in the equation
I has connect otg with harddisk docking support 2TB
SSD and thumb drive are your best bets for bumpy rides though they all take a pretty good beating
Sent from my Xperia Sola using xda premium
I know it's not all that practical but I have a v30 that's destroyed but turns on and works every way the screen just flashes colors, is there any way I can format the whole phones os into a "ntfs" hdd to plug into a windows computer and not have to select "device" under my PC. I want the phone to show as a regular flashdrive even if I can't use the actual Android os, but I need it to be readable by windows as a full flashdrive not a "device" then click it to show storage if that makes any sense
Someone will have to correct me if I'm wrong, but I believe they did away with remounting storage as a bulk storage device...uh...several versions back. Probably with Lollipop, it introduced a ridiculous number of changes, many of them annoying like this.
Since then, Android primarily uses Media Transfer Protocol (switchable to Picture Transfer Protocol), a comparatively slow, crappy, feature-limited way to manage files. It's complete garbage. It's also safer than straight-up exposing the filesystem and doesn't interrupt the phone's ability to keep using the storage (for better or worse...), which is probably why they did it.
To get around it, you'd probably need to put a service of some sort on the phone so it can present the phone as a network drive, which you could then map over wifi --- there's probably app/windows program combos to do this. Or compile your own ROM with the bulk storage option enabled.
There might also be a way in Windows to map a drive straight to the MTP storage, or symlink a folder to it to make it more seamless, but I'm not sure. You'd still be dealing with MTP limitations then, and I'm not sure how an application that expects a real filesystem would react to that.
Not much worth it man. Storage is dirt cheap.
The phone won't last for long because the battery will eventually ends up dead and the phone/storage will stop being usable.
Blueice87 said:
Not much worth it man. Storage is dirt cheap.
The phone won't last for long because the battery will eventually ends up dead and the phone/storage will stop being usable.
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True.
64GB USB 3.0 flash drive is $9.99.
128GB USB 3.0 $17.99.
That's same memory of V30 and V30+.
https://www.amazon.com/PNY-Turbo-12...s=128gb+hard+drive&qid=1573439009&s=pc&sr=1-8
1TB external hard drive - $43.86
https://www.amazon.com/Seagate-Port...ard+drive&qid=1573439194&s=electronics&sr=1-2
ChazzMatt said:
True.
64GB USB 3.0 flash drive is $9.99.
128GB USB 3.0 $17.99.
That's same memory of V30 and V30+.
https://www.amazon.com/PNY-Turbo-12...s=128gb+hard+drive&qid=1573439009&s=pc&sr=1-8
1TB external hard drive - $43.86
https://www.amazon.com/Seagate-Port...ard+drive&qid=1573439194&s=electronics&sr=1-2
Click to expand...
Click to collapse
Better yet, don't buy USB sticks, they're garbage. Cheap, yes, but slow and fragile: both physically and electrically.
External HDDs are pretty cost-efficient storage, but they're also mechanically fragile.
If you're gonna do it, do it right! Something sturdy, compact and upgradable:
ElecGear SATA M.2 SSD to USB 3.1 Gen2 Enclosure (actually an Ineo T2588FA, there's also a vented version available but meh on holes for things to get into)
and uhhh...
Kingston A400 240G Internal SSD M.2 2280 SA400M8/240G (just as an example, probably better deals on bigger drives out there)
Cabled M.2 enclosures are cheaper and plentiful, of course, but I personally like the giant-thumbdrive formfactor :silly:
Most important thing is to make sure it supports USB3(.1) Gen 2 and UASP for maximum balls-to-the-wall speed.
Even without UASP support (in Win7 or what-have-you), something like this will blow a normal consumer flash drive (and most "professional"/"enthusiast" drives) or external HDD out of the water in any performance metric, and aside from the connector is basically immune to most things that would physically damage a HDD or plastic-cased flash drive.