[comp.sys.apple] RAM Disk

AXDJW@ALASKA.BITNET (David Wreggit) (06/23/88)

As was pointed out some time ago, Paintworks Gold doesn't like a RAM disk
set up in memory when it is running.  Several reseting options have been
presented, but the easiest way (with no problems that I've ever encountered)
involves setting up a maximum RAM disk size of 800K (or whatever) and a
minimum RAM disk size of 0K.  This way the OS can create a RAM disk if
appropriate, or ignore it and have free access to the extra memory.
Dave.

jason@lakesys.UUCP (Jason) (06/24/88)

In article <8806222315.aa01473@SMOKE.BRL.ARPA>, AXDJW@ALASKA.BITNET (David Wreggit) writes:
> [First part of article deleted]
> involves setting up a maximum RAM disk size of 800K (or whatever) and a
> minimum RAM disk size of 0K.  This way the OS can create a RAM disk if
> appropriate, or ignore it and have free access to the extra memory.
> Dave.

	I've never looked into it, so I'm completely clueless as to how
/RAM5 works as it does... Does ProDOS just read in the battery-backed RAM
stuff and then write the virgin directory out to it? Or is it handled by some
low-level stuff? What happens if /RAM5 needs memory and it's all taken up?
Questions galore... I'm an experienced (if somewhat lazy) programmer, and can
deal with a techy answer. Any responses appreciated!

	Jason - Not your average iconoclast.

If Barbie were blown up to human size, her measurements would be 39",21",33".
(For real!)

oliver@thelink.UUCP (Joel Sumner) (06/25/88)

In article <8806222315.aa01473@SMOKE.BRL.ARPA>, AXDJW@ALASKA.BITNET (David Wreggit) writes:
> As was pointed out some time ago, Paintworks Gold doesn't like a RAM disk
> set up in memory when it is running.  Several reseting options have been
> presented, but the easiest way (with no problems that I've ever encountered)
> involves setting up a maximum RAM disk size of 800K (or whatever) and a
> minimum RAM disk size of 0K.  This way the OS can create a RAM disk if
> appropriate, or ignore it and have free access to the extra memory.
> Dave.


Small Problem with that approach if you want to use the finder (there may be
other applications with problems but the finder is the only one I have
heard)..... The Finder will get disk errors if you try to copy a group of 
files to the RAMdisk.

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