external hd chkdsk/r super slow

[abraincell]

Hallo, after I managed to fix the mouse lag (i changed the monitor setting to game mode), suddenly i get file cyclic redundancy check error on my external hd, seagate backup plus. so i run seatools, quick check and long check clear, i defrag the disc, taking longer than other disc, but that's also clear, running chkdsk/f, also all clear, run sfc/scannow and that was also clear. so finally i run chkdsk/r, run it from yesterday evening, it only gets to step4/5, 10% at 121/48880 files processed 🙁 and fixing bad sectors along the way (only fixing 7 since yesterday evening 🙁 ). This is taking too long, should I let him do his thing or should I just transfer all the files into new drive? 🙁 he's not old, only a couple of years. if i transfer the files into new drive wouldn't it be a waste because i will be transferring bad files? or no? all files still accessible, no funny noises. what should i do 🙁 ? What could cause this bad sector problem? 🙁 I'm running win 7 intelcorei5 processor 8gb ram

 

[pcgaming98]

Transfer all of the files to a new drive, your external HDD may be failing. Make sure the connection between the PC and the external HDD is good. Try using a different USB cable or eSATA cable depending on which one you use, or even switch between the two.

 

[abraincell]

Transfer all of the files to a new drive, your external HDD may be failing. Make sure the connection between the PC and the external HDD is good. Try using a different USB cable or eSATA cable depending on which one you use, or even switch between the two.

it's at 123/48880 files 🙁 so it's okay to transfer all the files into new external HDD? somehow i think of it as transferring files from failing HDD will contaminate new HDD and not solving the bad sectors problem 🙁 not sure why i thought of it this way.... is the bad sectors has more to do with the HDD than the file itself? he's fixing my picture files 🙁 whyy? if i transfer all and reformat the seagate will i still be able to use it? i did tried to switch to different usb port, didn't make a difference 🙁 connection is good. not sure why seatools doesn't detect any problems... in the mean time should i let him finish chkdsk/r? okay, i will transfer all... as long as it doesn't do harm to the new drive... hopefully not 🙁 thank you for coming to my rescue so quickly mr/ms pcgaming98 (^^)/

 

[Solandri]

it's at 123/48880 files 🙁 so it's okay to transfer all the files into new external HDD? somehow i think of it as transferring files from failing HDD will contaminate new HDD and not solving the bad sectors problem 🙁 not sure why i thought of it this way.... is the bad sectors has more to do with the HDD than the file itself? he's fixing my picture files 🙁 whyy?

A hard drive doesn't just write your data to the disk. It writes it with a bunch of error correction added on. This allows the drive to withstand simple bit errors and random corruption without corrupting your data. Your drive is slowing down because it's encountering a massive number of read errors and having to rely on the error correction to extract the correct data. In some cases the error correction isn't enough, and the the CRC (cyclic redundancy checksum) says the file it read is different from the file that was written, indicating a read error. The drive is having to try re-reading again (and again and again) until just by pure luck the CRC says the file was read correctly.

The fact that a sector scan is turning up bad sectors means your drive is in the very last stages of dying. Bad sectors are areas of the disk where the drive has tried over and over again to read the data, but the CRC keeps coming out wrong. Eventually it gives up and just marks the sector as bad - i.e. makes a note never to use that sector again.

Stop trying to fix it with chkdsk, and get all your data you can recover off of it ASAP. If the disk is marking sectors as bad, that means some of your data is already unrecoverable.

 

[abraincell]

it's at 123/48880 files 🙁 so it's okay to transfer all the files into new external HDD? somehow i think of it as transferring files from failing HDD will contaminate new HDD and not solving the bad sectors problem 🙁 not sure why i thought of it this way.... is the bad sectors has more to do with the HDD than the file itself? he's fixing my picture files 🙁 whyy?

A hard drive doesn't just write your data to the disk. It writes it with a bunch of error correction added on. This allows the drive to withstand simple bit errors and random corruption without corrupting your data. Your drive is slowing down because it's encountering a massive number of read errors and having to rely on the error correction to extract the correct data. In some cases the error correction isn't enough, and the the CRC (cyclic redundancy checksum) says the file it read is different from the file that was written, indicating a read error. The drive is having to try re-reading again (and again and again) until just by pure luck the CRC says the file was read correctly.

The fact that a sector scan is turning up bad sectors means your drive is in the very last stages of dying. Bad sectors are areas of the disk where the drive has tried over and over again to read the data, but the CRC keeps coming out wrong. Eventually it gives up and just marks the sector as bad - i.e. makes a note never to use that sector again.

Stop trying to fix it with chkdsk, and get all your data you can recover off of it ASAP. If the disk is marking sectors as bad, that means some of your data is already unrecoverable.

Thanks!!! I kinda thought this is a waste of time, because no way this is taking so goddamn long. I read in other forums where chkdsk had run as long as 72 hrs, but only fixing 7 in over 12 hrs is a bit ridiculous. Thanks for the speedy reply! I am kinda sad becuz this seagate external HDD had been only with me for a couple of years 🙁 thanks again (^^)/

 

[pcgaming98]

Glad your problem is solved. As far as I know, there are boot applications to recover data from a drive with bad sectors. I had to do this in the case of my dying USB.

http://www.easeus.com/resource/hard-disk-data-recovery.htm

I used their partition manager to save my USB. Their products work wonders.

 

[Solandri]

Thanks!!! I kinda thought this is a waste of time, because no way this is taking so goddamn long. I read in other forums where chkdsk had run as long as 72 hrs, but only fixing 7 in over 12 hrs is a bit ridiculous. Thanks for the speedy reply! I am kinda sad becuz this seagate external HDD had been only with me for a couple of years 🙁 thanks again (^^)/

There is a small chance that the disk can be "fixed" by letting chkdsk run that long. If you dropped the drive and the heads were just knocked out of alignment, the data with the old alignment (and thus difficult to read with the new alignment) can be re-written with the new alignment. And the drive will magically start to work again.

But if that's not the problem, then the drive may only have x hours of use left before it completely stops working. You may be wasting valuable time running chkdsk - time you could be using to copy your data to another drive. So the first priority (unless you already have a backup) is to copy your data to another drive. Once your data is copied, then you can do anything you want to try to "fix" the drive because there is no further risk of data loss. But unless it's got a really beefy case I would never again trust a drive which has been dropped.

 

[abraincell]

Thank you both for the help ! yes, i'm transferring the files into a new drive, i'm not wasting my time while it still stuck at 10%. the drive never dropped (unless the cats knocks it over and put it back nicely 😀) i think while the drive is still working and i can still access the files with no problem i should just save them all before it's too late 😀. thanks again, have a good day!!!

Update: .... so i tried to save all the data into another external HDD.... oh gosh, not only it was having trouble of transferring only 100Gb of data, now that i am trying to save all the pictures (which is only 30someGb) been doing this since yesterday!!! and not even halfway done! transfer rate is only 62kB!!!!!! and a lot of data I cannot save because it cannot be read 🙁 huaa!! i kinda don't want to stop it right now because i don't want want to corrupt the data that's transferring now, but it has been 24 hrs!!! I transferred almost 1TB data before took me way less time than this! is it the adapter ?

solved.... put it into usb 2.0 port, but slowed down again and stuck now 🙁