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 Drive quickly full, files on 1T use so much space then 500G

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TSAnime4000
post Dec 5 2016, 05:32 PM, updated 8y ago

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I buy new hard disk, when I copy my old 500GB to 1TB, suddenly disk usage not equal, 1TB use more space, how come?
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loki
post Dec 5 2016, 05:40 PM

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take your house as analogy.. some house only 1 person stay on 1000 sq foot = disk wastage.
hightechgadgets8
post Dec 5 2016, 05:46 PM

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check your partition using disk manager
abubin
post Dec 5 2016, 05:48 PM

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that is due to the difference in the sector cluster size.

https://support.microsoft.com/en-us/kb/140365

Open up command prompt as administrator.

Then run the command: chkdsk <drive>

Example: chkdsk c:


Output will be as below:
CODE

Windows has scanned the file system and found no problems.
No further action is required.

107217919 KB total disk space.
 88190304 KB in 284220 files.
   183872 KB in 49629 indexes.
        0 KB in bad sectors.
   671595 KB in use by the system.
    65536 KB occupied by the log file.
 18172148 KB available on disk.

     4096 bytes in each allocation unit.
 26804479 total allocation units on disk.
  4543037 allocation units available on disk.


Look at      4096 bytes in each allocation unit.

This part will be cluster size. It should be 4096 bytes by default. So maybe you somehow formatted it to 8192 or something.

This post has been edited by abubin: Dec 5 2016, 05:52 PM
TSAnime4000
post Dec 5 2016, 06:05 PM

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CODE
The type of the file system is exFAT.
Volume Serial Number is 2654-5122
Windows is verifying files and folders...
Volume label is Steam.
File and folder verification is complete.

Windows has scanned the file system and found no problems.
No further action is required.

976730880 KB total disk space.
548838016 KB in 476820 files.
  2513024 KB in 19548 indexes.
        0 KB in bad sectors.
     1152 KB in use by the system.
425378688 KB available on disk.

   131072 bytes in each allocation unit.
  7630710 total allocation units on disk.
  3323271 allocation units available on disk.


this one
Eventless
post Dec 5 2016, 07:51 PM

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QUOTE(Anime4000 @ Dec 5 2016, 06:05 PM)
CODE
   131072 bytes in each allocation unit.
*
This shows that each file on the drive would take up a minimum of 128kb of space. If your drive have plenty of small files, you will end up with a lot of wasted space. You will need to reformat the drive in order to change that value. How did you end up with the drive bring formatted using the exFat filesystem?
TSAnime4000
post Dec 5 2016, 08:05 PM

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QUOTE(Eventless @ Dec 5 2016, 07:51 PM)
How did you end up with the drive bring formatted using the exFat filesystem?
*
I often get folder locked when other user create a folder/file, using exFAT don't have to re-apply permission everytime, plus lower overhead then NTFS,

 

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