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Large Mac files: a question [Summary]



A couple weeks ago, I posted a message asking about problems with  
writing large files on Mac floppy disks (that message is included at the  
end of this). I got a small number of replies, and am including the  
relevant information here:

Other folks have seen this same problem under NeXTSTEP with both the  
Workspace manager and Executor (so, Executor seems free of blame).   
These folks all seem to have the external PLI Superfloppy drive.  No one  
with another vendor's drive reported seeing this.

One fellow pointed out that as of NS 3.2, NeXT withdrew support for at  
least formatting on external drives.  I have vague memories of reading  
something like this in some release notes somewhere, but I can not  
locate it now (I'm in the midst of packing, so if it was on paper, it is  
in a box somewhere).

My sense, though, is that this is a PLI drive problem, probably not a NS  
problem, and certainly not an Executor one.  (alas, my drive is long out  
of warranty...)

I'd still love to hear from anyone if they have further thoughts on this  
topic (I'm at davidjohn@kira.net.netcom.com).  If there is further  
public discussion, it should probably move to comp.sys.next.misc,  
though.

Thanks

david john burrowes


ORIGINAL MESSAGE.

Subject: Large Mac files: a question

This is not an executor issue, per se.  But, it's closely enough related  
that I thought I would ask y'all (sorry for the potentially wasted  
bandwidth)

I have a NeXTCube running NS3.2, and an external PLI SuperFloppy (2.8).   
I find that if I write large (larger than 100 or 200K, say), I will be  
unable to read the file, usually, on a Macintosh.

That is, I write a 600K file to the Mac disk (using either HFS_XFER or  
in the NeXTSTEP workspace manager), take it into my Quadra 950 at work,  
I'll then get a 'disk error' error message from the Mac when I try to  
read about the files (this seems to happen about 80% of the time)

Have any of you seen this before?  Is this a standard 'feature' of the  
NeXT machines with Mac files?

Thanks for any comments.

david john

p.s. Yes, it does seem to work fine with smaller files.