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Malcolm Cadman wrote:
<defragmentation snipped>
> As they write data to next available space, which means that an item can
> become scattered across a hard disk surface.
>
> It doesn't happen in QL world ... :-)
I don't know details but I bet you are wrong.
If a media *only* gets written to - ie nothing is ever deleted - and the
directory area does not need expanding, then there can be no fragmentation.
If files are deleted, holes appear in the system. Once there are files
to be written to the hard disk that are larger than any contiguous free
space, but there *is* space on the drive, then the file simply must be
fragmented, or not written at all. I don't know if the QL fills holes
by default or always writes to the end of the data. RomDisq though
certainly does not follow any normal pattern. It continually uses all
the free space to help increase the life of the flash memory.
It should not be too hard a job to write a de-fragmentation program for
anyone who knows how to direct read/write from/to a media. I guess the
hard bit is to make it safe (and to write the pretty pictures!).
Tony
>
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