how much free space do you have left on your hard disk? optimisation
can be done with a surprisingly small amount of free hard disk space
but given that it may be shuffling a dozen or so files around
simultaneously to free contiguous space there are limits. Possibly
try backup some of your larger files to CDr/w, DVDr/w or external
HD then erase them from your hard disk. My Powerbook took over 12
hours to optimise the first time (after 6 months of use) then the
next time (6 months later) after backing up then deleting all my
files bigger than 100 Mb (mostly aiff, mov, photoshop .VOB <hu humm>
files) it took less than 5 hours.
Optimisation is more like Hanoi Towers than a Rubics cube (sp?)
If my 20 year old memories of programing lectures serves me right
(not 100%)- the process of optimisation works (kinda in it's most
basic form) like this...
Read a chunk of file A and make a copy of it else were on the disk,
write the new location of chunk of file A to the file allocation
records and up date the files leaf pointers, read a chunk of file B
and make a copy of it were the old chunk of file A was (you do not
instruct it to explicitly over write A's old space just that file A
is file A because it happens to be in the next disk block from the
previous chunk of file B) then update your file allocation records
and leaf pointers. Repeat until done.
As such you always need more disk space that the sise of the two
chunks that you are moving around.,
SO....
allocating more memory is probably not going to work - I remember
being told quite firmly by a programming tutor that when we wrote
data optimisation tool all data must be written to disk before file
record tables were updated rather than storing any of it in volatile
RAM one surge or brown out and you will lose data, guaranteed.
More disk space will spead it up by having more swap space but more
memory MIGHT speed it up some more if the program can handle bigger
chuncks in its individual read write actions
Hi
Does anyone know of a way around this common warning when using
TechTools Pro 3? Mac TiBook 550/448/OS9.2/OSX 2.8/2x partitions on
HD.
'The Volume "Work Disk" does not have sufficient contiguous free
space to optimize file 'whatever.jpg'
'whatever.jpg' can be a movie, image, document or any file it seems.
The program works fine and cleans both drives, also fine for
Optimizing, it does one drive, then this warning happens. Do I
change memory allocation? or is there another workaround to this? I
am booting off the CD and it is not installed on system at all.
Thanks
Jon
Eye in the Sky Productions
Image makers to the Aviation Industry
* Air-to-air photography
* Print & web design/production
* VR panoramas
* Book production
* Copywriting
* Corporate ID
Based in Western Australia
T: 08 9380 6508
M: 0403 235938
E: [EMAIL PROTECTED]
W: <http://www.eyeinthesky.com.au>
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