Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!seismo!cmcl2!yale!husc6!think!nike!lll-crg!lll-lcc!well!perry
From: perry@well.UUCP (Perry S. Kivolowitz)
Newsgroups: net.micro.amiga
Subject: Release 2 of ASDG Recoverable RAM Disk
Message-ID: <1902@well.UUCP>
Date: Thu, 9-Oct-86 13:59:06 EDT
Article-I.D.: well.1902
Posted: Thu Oct  9 13:59:06 1986
Date-Received: Fri, 10-Oct-86 01:26:34 EDT
Organization: Whole Earth Lectronic Link, Sausalito, CA
Lines: 32
Keywords: New Release, Added Features

ZOWIE!

I've just finished  release 2  of  the  ASDG Recoverable RAM Disk driver. The
major enchancement over release one is that memory used by files which become
deleted will be returned to the free pool.

The first release dynamically allocated memory but  did not deallocate memory
if files were deleted.  It  couldn't  because  as  a track disk device it was 
never told about AmigaDOS's filing system decisions - only read this block or
write that one.

The new release overcomes this   deficiency while still  being  a track  disk
compatible device.  Also, this  release increases the maximum recoverable ram
disk size to a full 2Mbytes.


So: The ASDG recoverable ram disk:

	Is recoverable after reset or crash.
	Dynamically allocates memory.
	Dynamically deallocates memory.
	Dynamically moves buffers around to ensure that FAST ram is
		used for ram disk even if temporary conditions mean
		that no FAST ram is available. IE:  if  no FAST ram
		is available right now - borrow CHIP ram but as soon
		as FAST ram  becomes  available  move the track into
		FAST ram making the CHIP ram available again.
	Checksums every sector and track.
	Is COMPLETELY compatible with 1.2.


Perry