[Info-vax] VMS defragmenters

Arne Vajhøj arne at vajhoej.dk
Tue Apr 14 21:57:48 EDT 2009


JF Mezei wrote:
> This is worth its own topic.
> 
> There was a fragmentation analyser on a decus tape last millenia.
> 
> And there has been COPY/CONTIGUOUS for many eons which allowed
> individual files to be defragmented.
> 
> But with more recent VMS versions, wasn't there a "built-in"
> defragmenter ? If not, what is the SET FILE/MOVE/NOMOVE used for ?

A decade or two ago there was Raxco PerfectDisk and Executive
DiskKeeper.

I used PD - it was pretty good.

There were also a freeware one on the DECUS tapes.

Google seems to indicate that it was called JUICER.

I don't think it was widely used. People preferred the commercial ones.

Then Digital released DFU/DFO and most people switched to that and
the other products more or less disappeared.

Arne



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