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I have a question about MiniSD card writing slow:
I formated my card recently. now I'm trying to put data on it (about 700mb)
and it is taking longer than 3 hours and counting. I have written about 300mb so far.
Is this normal?
Is there software that can format the card in a way that it would write faster?/ or is this normal?
S.V.I said:
I have a question about MiniSD card writing slow:
I formated my card recently. now I'm trying to put data on it (about 700mb)
and it is taking longer than 3 hours and counting. I have written about 300mb so far.
Is this normal?
Click to expand...
Click to collapse
Yes.
Is there software that can format the card in a way that it would write faster?/ or is this normal?
Click to expand...
Click to collapse
No. Use an SD Card reader to load your card, then put it in the phone. That is the only fast way to do it. They are cheap (usually around $10 US), and totally worth it if, like me, you use your phone as a media player.
You are effectively asking the phone to read the file you send, copy it, then paste it into the SD Card. There is NO direct throughput, regardless of logic. Sorry to bear the bad news.
i was using the latest version of WM5storage.
formated the card with XP. then i tried a warez program to format it again. Pocket mechanic could not format it by the way.
anyway, just wanted to see if this was a usual thing. The card has pretty much become part of my phone; I lost the adapter that comes with it. I mostly use it to store cab files and photos in between flashing.
The main thing I noticed is that programs dont behave as well if put on storage card. I thought if there is a way to format it propperly, they might?
Thanx for your reply. glad to know i didnt kill my ca with XP.
a stupid trick: connect your blackstone to the PC in "drive mode", and defragment it from the PC by right-clicking on the disk drive, properties --> tools-->defragment!
...no need of special software...
i knew that it is not reccomended to defragment flash drives/cards
Why would you defrag? No heads to move to the appropriate sector, no gain from defrag.
On other devices i used PocketMechanic very often to defragment cards, repair of loose clusters and such card stuff. Allways without any problem.
But PocketMechanic doesn't work stabil on the HD, be careful!
no moving parts of flash mean seektime is very very low
and as such fragmentation dont slow things down
and flash having a limited number of writes before it dies
like a cd-rw/dvd-rw just more of them
so defragging flash mem lowers it's life because of the writes
and dont speed things up because seektimes is not an issue
memory cards are older than the blackstone!
tons of information on the topic, let's start from the internal one:
http://wiki.xda-developers.com/inde...ocket PC memory cards? Do I need this at all?
I think we may look at memory cards in the same way as a SATA SSD. In this case you can consolidate free space, which is excessively lighter on the writes than an old fashion full defrag.
Software that offers this option is available, and one example is Perfect Disc 10 and 11 (to my experience/knowledge).
So my advise is that if you need to defrag your SD card, which is a type of solid state drive, try to use free space consolidation only. This will be much easier on the wearing of the cells. I'm not quite sure of the P/E specs of SD Cards, or if they provide some wear leveling, but I'm reluctant to believe the latter is provided today for SD Cards like it is for most SATA SSD's.
I think SD card defragmentation is worth it when you have a HUGE and SLOW SD card.
I have a 32Gb SD card (from Kingston) in my Nexus One. I use Google Music Beta, Google Listen and Titanium Backup a lot! Since I reinstall/often upgrade my phone (I'm a geek after all and I'm totally happy!), the Music Beta Cache if often wiped out, I do daily Titanium Backup tasks and at least 3-5 podcasts are downloaded/wiped everyday.
This means a lot of fragmentation is "building up" on my SD card. Since, it is a slow SD, I often experience sluggishness or long load time even after a "fresh" install. The OS must read large files that are splitted on my VERY slow SD card, this does not help!
The problem is to get real numbers to prove this, It is mostly noticeable by navigating through the UI and/or loading some apps.
This was my 2 cents...
I have Wizcode Defragment and ScanDisk on my HD2, nearly every time that I defrag I get an error message stating 'Errors were found on volume "storage card". The volume cannot be defragmented. Please check the volume for errors first and try defragmenting again'.
I then run ScanDisk which finds a number of invalid/lost clusters, yesterday there were over 200 lost clusters and today 27.
Is this anything to be concerned about? If so, what steps should I take to remedy?
Thank you for your assistance.
u defrag the Storage Card while it's in your HD2?
denizenx said:
u defrag the Storage Card while it's in your HD2?
Click to expand...
Click to collapse
Yes. With Wizcode Defragment Mobile I do not think there is an alternative.
defrag ing your sd card will reduce its life fairly significantly.flash memory has a limited number of write cycles, so defragmenting will use up quite a significant number of these cycles.
but more to the point .... my card always comes up as containing errors whenever I put it in my pc card reader, and asks if I want to fix it. it has been doing this for around 2 years and I've always chosen no, and never had any issues.
samsamuel said:
defrag ing your sd card will reduce its life fairly significantly.flash memory has a limited number of write cycles, so defragmenting will use up quite a significant number of these cycles.
but more to the point .... my card always comes up as containing errors whenever I put it in my pc card reader, and asks if I want to fix it. it has been doing this for around 2 years and I've always chosen no, and never had any issues.
Click to expand...
Click to collapse
Thank you for your reply. I was not aware that defraging a card reduced its life.
no worries.
don't lose any sleep over it,I believe the rewrite cycles are somewhere in the region of 10,000 cycles, so one or two defrags is neither here nor there, but I know how addictive de fragging can be, so doing the whole card even once per week will soon mount up.
personally if I were you and you are worried, I'd use the pc to scan and fix the card.
yeah forget about dragging your card.
get a kettle and a card reader.
copy thee contents of the card to your pc (in a new folder some where)@ put the kettle on while its copying. when is done format your card copy the contents back again to your nice shiney clean card. go make a cup of tea while they are copying back
the card will now be defragged
Apart from being a little harmful, defragmenting flash memory is also useless as there are no moving parts to suffer from fragmentation.
right
I concur. Defragging volumes on solid state media, like anything other than conventional harddisks, is not in any way contributing in any practical performance increase.
There are some benchmark tools for winmo out there. Just wait untill your card is realy fragged, run the benchmark, defrag, and run the test again. You will see no performance increase.
As stated, it's the moving parts that hate fragmented volumes, your HD2 has none, beside the buttons when you press them.
You shouldn't bother.
You should however get a solid state drive (SSD) for your desktop or laptop. It'll make you happy.
Broke, but happy.
(Check tests on internet, there is quite a lot difference between SSD's)
Best to spend that time researching performance of different SD cards. I for instance am very content with my 8 GB Transcend SDHC, some kind of superspeed series. It writes allmost 20MB/s in my desktop cardreader.
Nice.
It realy doesn't care what part of the 8 GB it needs to access to get you your file. I think I saw some article stating the difference is measured in µs. I don't think you can notice µs's, even when they bring their entire family of µs's.
Research tweaking cache sizes and pagepool. Might help with performance, depending on how you use your device.
Hope this helps.
Thank you all for your helpful advice.
Do not format you SD card, in this way you will loose all your data.
You just need to Defragment you SD card and in this case you will never loose your data but also you will found that your SD card is back to High speed.
Defragmentation can be done using any windows just right click on your SD card then go to tools tab then click on defragment.
Interesting.....
Things never get fully deleted off SD cards anyway...
part of the sd tech is something called wear leveling..
doing a defrag on your memory card is not going to be very accurate.
the card has an on board chip that spreads out the writing of sectors to keep them from wearing out. this is transparent to the system.
Do not defrag a memory card. This consumes write/erase cycles and shortens the MTBF.
aarons6 said:
part of the sd tech is something called wear leveling..
doing a defrag on your memory card is not going to be very accurate.
the card has an on board chip that spreads out the writing of sectors to keep them from wearing out. this is transparent to the system.
Click to expand...
Click to collapse
I tried it on my HD2 and it works, and booting Android come faster as if i format it.
Defragment : it reorganize all the blocks in the SD card (re addressing the blocks)
which make running or opening a file is faster and it give more space.
It only effect on SD card files and not Android system files.
Android system files are found in data.img which is a virtual disk (Formatted as EXT2)
zaidsa3sa3 said:
I tried it on my HD2 and it works, and booting Android come faster as if i format it.
Defragment : it reorganize all the blocks in the SD card (re addressing the blocks)
which make running or opening a file is faster and it give more space.
It only effect on SD card files and not Android system files.
Android system files are found in data.img which is a virtual disk (Formatted as EXT2)
Click to expand...
Click to collapse
yes but because of the write leveling circuit those files are not organized contiguous in the first place.
they are placed in order of what sectors get written to less.
or at least thats how its supposed to work
But, the data.img is one big file on your sd card...
I could see doing a defrag once in a long while, like if you load up with a bunch of MP3s you plan on leaving there. But, if you constantly move files on & off, and defrag often, then you're just wearing your card out faster.
I thought defragmentation was only effective on hard drives?
aarons6 said:
yes but because of the write leveling circuit those files are not organized contiguous in the first place.
they are placed in order of what sectors get written to less.
or at least thats how its supposed to work
Click to expand...
Click to collapse
Try it before you judge
Am pretty sure of what i am talking about.
I think its better on your card to just copy everything on your card to your computer, then format card and copy everything back at once. I thing defragging causes too much writing and erasing on the sectors... it will make your card wear out quicker.
Sent from my HTC HD2 using XDA App
Defrag is only good for harddisk to save seektimes and minimize head movement
on a SD Card is nothing like that, no head that must seek thing.
There is no need to defrag SD Cards or SSD Disks
Quick format : it only clear the address table and it will not rearrange the blocks.
Defragmet is similar to full format but it is much faster and without loosing your data.
For me i will go to Defragment option.
BTW SD card doesn't have a read/write head that may scratch the cylinder (Harddisk),
it is a 0/1 operation (no mechanical parts) so it will not brick your SD card.
"SD card lifetime is 10 years or more."
ByteFax said:
Defrag is only good for harddisk to save seektimes and minimize head movement
on a SD Card is nothing like that, no head that must seek thing.
There is no need to defrag SD Cards or SSD Disks
Click to expand...
Click to collapse
It will reallocate the blocks in the sectors which will put all related blocks in sequence, which will make running an application faster with more free space on your sd card.
Try it and read about it before you judge.
Can you tell me where did you find that kind of info? I thought you shouldnt defragment sd cards and ssd drives. That just doesn't sound right to me...
100% correct.
ByteFax said:
Defrag is only good for harddisk to save seektimes and minimize head movement
on a SD Card is nothing like that, no head that must seek thing.
There is no need to defrag SD Cards or SSD Disks
Click to expand...
Click to collapse
Sent from my HTC HD2 using XDA App
The normal reason people suggest formatting your SD card is so that you can select a larger cluster size, to help with R/W speed and therefore battery life.
A defrag doesn't do this (obviously), so there will be times where a format is definitely the right thing to do.
zaidsa3sa3 said:
It will reallocate the blocks in the sectors which will put all related blocks in sequence, which will make running an application faster with more free space on your sd card.
Try it and read about it before you judge.
Click to expand...
Click to collapse
Can you tell me the access time of a Hard Drive and the one from a SD card?
Access time of a HDD is usually ~9ms-~11ms depending on the size, rotation speed and make. SD/SSD's usually have access times below 0.5ms, but, SD's are quite slower than SSD's which is why people want NAND support so much. NAND is not fast as transferring data but it's access write/read time is at least 10 fold faster.
TonyCubed said:
Access time of a HDD is usually ~9ms-~11ms depending on the size, rotation speed and make. SD/SSD's usually have access times below 0.5ms, but, SD's are quite slower than SSD's which is why people want NAND support so much. NAND is not fast as transferring data but it's access write/read time is at least 10 fold faster.
Click to expand...
Click to collapse
hehe, knew that but my point is that defragging only works on a HD because the head needs to go from one position to another.
Mechanical things take a much longer time so that is why we (I use a SSD so no need to) have to organise the data on the drive so it can read/write in one go.
Actually on SSD's they spread the data around since they wear out. So the controllers randomizes the data around so 1 cell isn't abused all the time.
I would love to see the benchmark of a fragged and defragged SD card.
Guys
I tried it using 2 HTC HD2 T-mobile 16gb as the senario below:
Me :
Install new build mdj v.4.1 without Formating
defrag sd card
run es file explorer
Time taken for the application to load 3 sec
My Cousin:
Install new build mdj v.4.1 without Formating
run es file explorer
Time taken for the application to load 8 sec
Do you think it's the same ?????????????????????
It seems to me that sd cards are going to wear out, probably in about the same amount of time , whether they are defragged or not. We're talking thousands of write cycles here, so 7 or 8 defrags throughout the life cycle of the card isn't going to be a huge deal. And if you wear it out a little faster, that's the price you pay for a possible performance increase. I know sd cards aren't cheap, but they're not ungodly expensive. So I would say format the card when you first get it, try and load all your crap onto it at once (as much as possible) as opposed to slowly adding files as you go, and to yes do a defrag on it at key times, say like if you're removing one Android build and installing another. The benefits of defragging may be small, or even non-existant, but the same can be said of the extra wear that defragging puts on the card.
So, considering that 6.0 can format the sdcard to appear as internal memory, is there any good reason for going with 32GB or more? I would like to save the money and just get the 16GB and format the card so it appears internal.
Other than being slightly slower than internal memory, would this be a valid route going 16+card as opposed to 32+card?
I have a OnePlus One right now with the 64 and usually have about 20GB left so 32 is the base I need but I figure I might be able to get away with 16 if the card appears as all internal anyway.
Thoughts?
Yes, I went with a 16GB model also for the same reason. I installed a 64gb Sandisk extreme SD card that transfers up to 90mb/s. Nandroid backups went from 30 minutes on my old SD card (some cheap crap) to less than one minute. With a proper card you'll have no issues running apps off the SD.
The internal memory isn't much faster.
I've been considering using the adoptive storage, but I went ahead and bought the 32gb. Call me old fashioned, but I like having an SD card that is considered separate from the main storage for one big reason: If I ever have to do a wipe of the phone, I know that my photos, TWRP backups, and so on, are all safe as long as they are on the SD card. I don't know if we know what'll happen if you use the adoptive storage and you have to wipe the phone. Will it keep what is on the SD card part? Will it wipe it as well? My understanding is that it'll wipe it.
So I may just keep on doing what I'm doing... change the camera settings to use the SD card for pictures and videos, make the SD card the default place to save downloads, and only use the internal storage for app installs.
I use my SD card to store all of my media and reserve internal storage purely for apps. I can manage with 16gb since I don't have a lot of big apps. Adoptive storage is a nice feature but I don't think I'll be using it, since I like taking my microsd out and popping it in my laptop to manage my music, photos and movies.
Do we know FOR SURE that there will be no way to partition the external SD so that part of it is used for the OS (non-readable outside the phone) and part for external storage?
SalTNutz said:
Do we know FOR SURE that there will be no way to partition the external SD so that part of it is used for the OS (non-readable outside the phone) and part for external storage?
Click to expand...
Click to collapse
I haven't read anything that would suggest so. Everything I've read indicates that it formats the entire card to be used as internal storage. The tradeoff, it seems, for allowing adoptive storage is to make it very difficult for your to remove the card and use it in another machine.
Well thanks guys. Still up in the air which phone I'll ultimately get and if it's the Moto, what size but this does clarify things.
hbar98 said:
I haven't read anything that would suggest so. Everything I've read indicates that it formats the entire card to be used as internal storage. The tradeoff, it seems, for allowing adoptive storage is to make it very difficult for your to remove the card and use it in another machine.
Click to expand...
Click to collapse
why? whats the problem to pop it out,insert it into your pc and do the transfers and back to the phone? you can shut down the phone if you need
robert stig said:
why? whats the problem to pop it out,insert it into your pc and do the transfers and back to the phone? you can shut down the phone if you need
Click to expand...
Click to collapse
If you format the card as adoptive storage you can't just pop out the card and read it from a computer. The computer won't be able to read it.
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