1. Does the MXP support U3 class cards? And if it does, can it actually make use of U3 class performance? Otherwise might just as well a slower/less expensive card
2. What's the current common wisdom on the choice of microSD cards?
a. Get a good brand (esp as failure of a card in a Marshmallow device where the card is assigned as internal memory extension seems likely to wind up in a bootloop/require factory reset)
b. For general use for Marshmallow internal memory expansion, which specs are most important? Random read/write of small data blocks, or something else?
Get a U3 card
http://forum.xda-developers.com/moto-x-play/help/marshmallow-sd-cards-internal-storage-t3236766
Related
I have a new Jasjar and the package came with a 2GB SD card. The supplier tells me it should be a 60x card but in Pocket Machanic the benchmark says it is 4x on read and just 0.2x on write.
This is my one and only SD card so I have no others to compare. Is it possible Pocket Mechanic uses a different measurement method and that program just gives low figures for all SD cards? Or is my card really a slow one?
Can someone with PM give me some benchmark figures for their SD card so I know whether I have a slow card or not.
And should I expect a 2GB card to perform more slowly than say a 1GB card?
On my Exec using a 4GB 150X Transcend card, I'm only getting 0.7MB/s read and 0.2MB/s write (benchmarked by PocketMechanic)
Like in most other PPCs and PPCPEs, the SDIO interface is low speed so no matter how fast your SD card can run, you'll be limited to the speeds of the SDIO interface on your Universal.
Good observation O2. Actually I find it a bit surprising the Universal would have a slower than normal SDIO interface. After all it is just about the most expensive (if not THE most expensive) PDA/phone available. I guess I expected better - er, if that really is the cause of our slow SD card performance.
Hello, I'm just curios does this device has 2 SDIO card readers?
Does it supports 2 SDHC cards? I would think to buy one if it supposely can read 2x32gb SDHC cards
Thank you
Yes, 8Gb precisely supports.
what do you mean? nothing more than 8gb?
32Gb
Sorry for misunderstanding - I mean that it supports at least 8Gb (currently I have this card installed); and 32Gb SDHC should be supported as well. I didn't try, but you can check that in manuals which are feely available thruout internet.
Regards,
Soloserge.
spasibo
64GB of memory cards in Sedna
Hi -- Yes, I'm running my Sedna with 2 32GB Sd cards for a total of 64GB of flash memory (plus the 1GB NAND Flash). It _generally_ works great. But I've occasionally (just 3-4 times in my year of owning the phone) had problems with a card becoming corrupted: some directory and file names become scrambled and some files become inaccessible. Sometimes this can be fixed just by soft resetting the phone; sometimes, it seems to require reformatting the card. I've called HTC support on this; they say that the phone doesn't officially support cards of this size and won't offer any more help. It's possible that the problem is associated with my use of Softick's Card Export II software (for accessing the SD cards as hard drives via a connected computer). But I'm not sure. Regardless, the 32GB cards generally work great.
For me, the possibility of 64GB of memory is really the only reason to buy a Sedna! There are other phones with slicker interfaces, faster processors, better screens, and sexier form factors. But none of them will carry this much memory!
Alan
i bought this new card and was happy that i have a fast card now and that the transferring data with usb connection would be faster, but it is not.
The writing speed is between 3-5 MB/s, not better then my old Sandisk 16gb class2 card.
I have aMAGLDR v1.13 with CWM v.5.0.2.7.
I use the usb mount from CWM and transfer data through it, but it is really a disappointment. I format the card through different ways, all without any success.
On the my computer the card is not faster with FAT32 (with the micro sd adapter), when i format the card to NTFS it is really fast, but i can not use it on my phone with NTFS. Is Fat32 the problem here?
Does someone have the same card and could approve this problems or am i the only one?
thanks in advance /masteroe
try this..
get into android and see if this app works...it will increase the cache...you should see difference..
thanks, i tried this already without any success.
it seems that the problem is not this value. In the CWM this value is not interesting at all.
As i told you on Windows i have same performance issues with FAT32....
If you bought your SD card from Ebay you probably bought a fake Class 10
domimatik said:
If you bought your SD card from Ebay you probably bought a fake Class 10
Click to expand...
Click to collapse
it is not from the bay it is a original card (i hope) from amazon.
Class 10 only assures you of 10MB/S on sequential write, so if the card has been written to a few times there could be some drop due to fragmentation. Also, there are various overheads to consider, moving the data about, issuing the write command to each block, wait for a confirmed write response, blahblah.
Here
http://www.smxrtos.com/articles/whiteppr/flashperformance.htm
Is a (very) technical explanation, which rather happily (or not) examines a 10MB/S raw write speed SD as an example (scroll way down) and calculates an actual write speed at 5MB/S.
samsamuel said:
Class 10 only assures you of 10MB/S on sequential write, so if the card has been written to a few times there could be some drop due to fragmentation. Also, there are various overheads to consider, moving the data about, issuing the write command to each block, wait for a confirmed write response, blahblah.
Here
http://www.smxrtos.com/articles/whiteppr/flashperformance.htm
Is a (very) technical explanation, which rather happily (or not) examines a 10MB/S raw write speed SD as an example (scroll way down) and calculates an actual write speed at 5MB/S.
Click to expand...
Click to collapse
thanks for your information, but i think there is an other problem, my class 2 card is faster as it seems . I'm copying 700 MB with 1,5MB at the moment, that is really frustrating....
hehe yea i know what you mean, mine always runs far slower than it probably should too, one point some meg/s, for both my class 2 and a class 6, never any faster, either through cwm, android usb mass storage, or my card reader. (Lots of built in card readers are just usb readers mounted to internal usb headers, and are often only usb1, which doesn't help, , usb has a lot of overhead, lots of info regarding usb overhead here http://www.smxrtos.com/articles/usb_art/usbperf.htm (if a little old))
i will give back the card. This card does not make sense with HTC HD2..
Thread can be closed ! Thanks anyway ..
Hi, when I long press the home button and choose Task manager->Storage, I see System storage (out of 1.97GB), USB storage (out of 11.07GB) and SD card (out of 14.83GB). The SD card is probably my sandisk 16GB sd card. What about USB storage? I suppose the System storage is the internal memory. Also, from an end user point of view, is the new SanDisk Extreme Pro as fast as the internal memory? Is it worth to buy it? Thanks.
The phone is manufactured with 16 GB of flash on it.
2 GB for the ROM
2 GB for apps
The rest (11.07 GB) as general storage
Then it has a MicroSD slot where you can add more storage.
The speed of the internal storage should be good, but I don't know how it is compared to a Sandisk extreme pro card.
I asked SanDisk. They said that they do not know if the Extreme Pro is compatible with the Galaxy Note. They told me to ask Samsung. Of course, Samsung is going to point back to SanDisk.
Hi I need more space for my duo 11 and the cheapest way i believe is to buy a micro sd card to increase the size(Don't know if i can swap my hard drive from 128gb to 256gb). I spotted this micro sd card which is pretty good but don't know if i can utilise it to its maximum speed. The card is "Samsung UHS-1 Class10 PRO Micro SD XC 64GB Memory Card", I know duo 11 supports SD XC but it also needs to support UHS-1 for it to use it up to its maximum speed.
On a side note it says
-Read Speed: Up to 70MB/s
-Write Speed: Up to 20MB/s
Does take mean if i transfer files out of the sd card it can go up to 70mb/s and if i want to transfer files from my hard drive to the sd card the transfer speed would be 20mb/s??
Thanks in advance!
That would be the correct speeds assuming all is perfect and no overhead.
You also need to verify that the reader in the Sony is not connected through USB 2.0 or you wouldn't see 70MB/sec reads, more along the lines of 30-35MB/sec.
The duo uses sd cards not microsd. You can use a microsd card with an adapter but a sd card will be cheaper.
I have a 256gb sd card in mine and it works but it's not particularly fast.
Sent from my GT-N7100 using xda premium
thekiller99 said:
Does take mean if i transfer files out of the sd card it can go up to 70mb/s and if i want to transfer files from my hard drive to the sd card the transfer speed would be 20mb/s??
Click to expand...
Click to collapse
That would be the limiting factor as far as the SD card is concerned yes. Operating system overhead would slightly reduce that. Also there would be a limiting factor in what the hard drive read and write speeds are or memory stick or whatever it is the files are being transferred to and from.