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Re: Using Windows to make Android smoother

Cross-posted to 3 groups.

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On 2024-10-28 16:53, Arno Welzel wrote:
> Paul, 2024-10-26 20:09:
> 
>> On Sat, 10/26/2024 6:10 AM, Arno Welzel wrote:
>>> Harry S Robins, 2024-10-24 20:00:
>>>
>>> [...]
>>>> If a Windows full format doesn't fix bad sectors, what does it do to them?
>>>
>>> It will verify every data block, so "bad" blocks can get recorded so
>>> they don't get used any longer.
>>>
>>>> I always thought a format put a "jumper" so that bad sectors were ignored.
>>>
>>> Yes - but this depends on the medium used. Flash storage media like SSDs
>>> have their own controller which does bad block mapping on their own and
>>> use spare blocks (usually a few percent of the capacity are reserved for
>>> this) as substitute for defect ones. However SD cards are quite "dumb"
>>> and 100% of the capacity is used for data - so bad blocks need to be
>>> recorded as part of the filesystem during "long" formatting.
>>>
>>
>> $BADCLUS can be updated at two times. By doing the "long format",
>> you can update $BADCLUS before files are put on a drive. By using the
>> scanning option in CHKDSK, you can mark off clusters via $BADCLUS
>> (presumably trashing a file at the same time, a file that was already
>> trashed so no big deal).
> 
> JFTR: $BADCLUS is specific for NTFS. However SD cards are usually not
> formatted using NTFS. But FAT and ExFAT also have mechanisms to record
> bad blocks which should not be used any longer.

If a flash media (usb stick, card) does have a bad sector I don't see 
why not marking it as bad in the filesystem. Of course, you can decide 
to garbage the thing as soon as. Those devices do not have bad sector 
management in firmware.

-- 
Cheers, Carlos.

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Thread

Using Windows to make Android smoother Andrews <andrews@spam.net> - 2024-10-23 21:54 +0000
  Re: Using Windows to make Android smoother Paul <nospam@needed.invalid> - 2024-10-24 03:20 -0400
    Re: Using Windows to make Android smoother "Carlos E.R." <robin_listas@es.invalid> - 2024-10-24 16:12 +0200
      Re: Using Windows to make Android smoother "...winston" <winstonmvp@gmail.com> - 2024-10-24 13:20 -0400
        Re: Using Windows to make Android smoother Harry S Robins <stanleyrobins@nothere.uk> - 2024-10-24 13:00 -0500
          Re: Using Windows to make Android smoother "...winston" <winstonmvp@gmail.com> - 2024-10-24 14:12 -0400
          Re: Using Windows to make Android smoother Arno Welzel <usenet@arnowelzel.de> - 2024-10-26 12:10 +0200
            Re: Using Windows to make Android smoother "Carlos E.R." <robin_listas@es.invalid> - 2024-10-26 15:56 +0200
            Re: Using Windows to make Android smoother Paul <nospam@needed.invalid> - 2024-10-26 14:09 -0400
              Re: Using Windows to make Android smoother Arno Welzel <usenet@arnowelzel.de> - 2024-10-28 16:53 +0100
                Re: Using Windows to make Android smoother "Carlos E.R." <robin_listas@es.invalid> - 2024-11-01 09:19 +0100
        Re: Using Windows to make Android smoother Paul <nospam@needed.invalid> - 2024-10-24 14:33 -0400
    Re: Using Windows to make Android smoother Andrews <andrews@spam.net> - 2024-10-24 17:15 +0000
      Re: Using Windows to make Android smoother Paul <nospam@needed.invalid> - 2024-10-24 14:42 -0400
  Re: Using Windows to make Android smoother Andrews <andrews@spam.net> - 2024-10-24 17:35 +0000
    Re: Using Windows to make Android smoother "...winston" <winstonmvp@gmail.com> - 2024-10-24 14:35 -0400
  Re: Using Windows to make Android smoother Andrews <andrews@spam.net> - 2024-10-25 18:41 +0000
  Re: Using Windows to make Android smoother Andrews <andrews@spam.net> - 2024-11-01 06:26 +0000
    Re: Using Windows to make Android smoother Andrews <andrews@spam.net> - 2024-11-01 13:56 +0000

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