Why my USB drive is suddenly working slowly ?

[djalli]

USB mass storage problem

I have a 128Mb SanDisk USB drive which I plug to an USB port. I have formatted it previously using FAT or FAT32.

I last night ejected it before stopping the USB driver/device in WinXP. Now I see it copies from and into the drive very slowly, noticeably slow, compared to what used to. Plus it corrupts 1 or 2 files stored.

I re-formated it again in FAT, FAT32, NTFS but no solution. The ScanDisk utility finds no problem but the defragmenter says 1 directory is fragmented.


Is any way I can come to some fix for this?
thank you, djalli

 

[eep2nw]

Re: USB mass storage problem

have you by any chance dropped it??? It happened to me once where I dropped mine and the first 20% of the drive is a goner. There're some way to get round this problem though by forcing the drive to bypass the bad sectors; but unfortunately it wasn't done by me... could ask around..

 

[djalli]

USB mass storage problem

Hi eep2nw

No I did not drop it. How to force drive bypass bad sectors?

 

[fallbreak01]

Re: USB mass storage problem

how about running from the command line as a first step:

chkdsk /f

and let me know the outcome?

or look here:
hxxp://lists.gpick.com/pages/Hard_Disk_Tools.htm
hxxp://www.programurl.com/software/unformat.htm

 

[djalli]

Re: USB mass storage problem

Still the same thing fallbreak01. Others also. USB drive remains slow, and few files come corrupted when copying no matter what pc is. Others also.

C:\>chkdsk /f g:
The type of the file system is FAT.
Volume 123 created 11/29/2004 8:16 PM
Volume Serial Number is 502F-8B73
Windows is verifying files and folders...
File and folder verification is complete.
Windows has checked the file system and found no problem.

  130,797,568 bytes total disk space.
    3,426,304 bytes in 4 files.
  127,371,264 bytes available on disk.

        2,048 bytes in each allocation unit.
       63,866 total allocation units on disk.
       62,193 allocation units available on disk.

Here is the most strage part, it shows 1 directory in fragmentation report, there are only 4 files and no directory in drive:

Volume USB2 (G:):
	Volume size	=	124 MB
	Cluster size	=	2 KB
	Used space	=	3,346 KB
	Free space	=	121 MB
	Percent free space	=	97 %

Volume fragmentation
	Total fragmentation	=	0 %
	File fragmentation	=	0 %
	Free space fragmentation	=	0 %

File fragmentation
	Total files	=	4
	Average file size	=	835 KB
	Total fragmented files	=	0
	Total excess fragments	=	0
	Average fragments per file	=	1.00

Pagefile fragmentation
	Pagefile size	=	0 bytes
	Total fragments	=	0

Directory fragmentation
	Total directories	=	1
	Fragmented directories	=	1
	Excess directory fragments	=	0

[/code]

 

[eep2nw]

Re: USB mass storage problem

had a check with one of my mates. He's not sure about USB drives, but with IDE drives it's not a problem to force a bypass....
Can you try partitioning the drive in WinXP(disk management), then turn-off drive partition for the first bit... this should force data to be stored elsewhere... hope this works....