Odds and Ends from Glenn Everhart

These items are some odds and ends updated for the most recent VMS (7.1)
which may be of interest.

ASNVD_64.MAR;2     	Assign process for vddriver_64
ASNVD_CLD_64.CLD;2 	CLD for above (gets linked in)
CMPDSK.FOR;4       	Disk compressor
CMPDSKHIGHVAX.ZIP;1	The CMP*.* are a compressing disk system, with source,
			for VMS. It includes a tool which compresses a 
			complete disk onto two files, namely a small index
			file and a large data file. The entire disk is
			compressed (in 32 block units) and pointers to where
			each disk chunk starts, and the size, are kept in
			the index file. There is also a driver and companion
			server which work together and can read such a pair
			of files and present it to the system as a read-only
			exact image of the disk. Two compress algorithms are
			available...the fast one from vmstpcx, and a slower
			but tighter one from zlib. You need to match the
			compress and decompress server types. The driver and
			device names you get are "DT", in memory of the old
			TU56 DECtape that also kept file structures on tape.

			The server opens the files readonly and does so in
			a way that can allow access to the containers across
			DECnet. Instructions are provided, and the zip file
			with "vax" in it has vax binaries, and the one without
			has Alpha binaries.

			This facility also provides a very compact way to
			store or ship entire disks, regardless of their
			file structure. Typical compression ratios of 2:1
			to 3:1 have been observed.
CMPHIGHC.ZIP;11    
CRYDSK_AXP.ZIP;1   	Encrypting and remote virtual disks for Alpha
DFDRIVERS.LNK;1    	Virtual disk on contig files for alpha, 64 bit VMS
DFDRIVERS.OPT;1    
DFDRIVER_S264.MAR;30
DFDVRAXP.ZIP;5     
FDHOSTJNL.MAR;3    	"Journalling" host for Vax FDdriver. It was written
			to allow a virtual disk on a file, not necessarily
			contiguous, that was shadowed to a memory section
			on a local system. The shadowing however is done in
			a batch type operation every 15-20 minutes in such
			a way that either the remote file has a snapshot of
			the valid disk, or a local-disk journal file can be
			played back "onto" the remote file to create a valid
			snapshot. (This prevents corruption of the container
			file but does not require writes to constantly load
			your net.)
IDEDRIVER.ZIP;1    	Minor mod to the IDE disk driver from the Freeware V2
			CD. Some drives couldn't handle one request of 127
			blocks; this one limits I/O size but has succeeded
			in working. (Note however it is unsupported. To get
			VMS up on a platform, too, in addition to a disk
			driver you need some bus support code. Therefore
			this will allow use of IDE disks on some VMS platforms
			but should be relied upon with extreme caution.
JGDRIVER.EXE;14    	Error-recovery "wedge" intercept driver. The "_S264"
JGDRIVER.MAR;11    	version has been observed to work on Alpha VMS V7+
JGDRIVER.OBJ;3     
JGDRIVER_S264.MAR;35
JGDRIVER_S264.OBJ;22
PRCARMOR.CLD;3     	Prcarmor sets or clears nodelete, forcex-in-progress,
PRCARMOR.EXE;3     	and related flags. Seems to run just fine on alpha.
PRCARMOR.MAR;4     
PRCARMOR.OBJ;3     
PRCARMOR_CLD.CLD;1 
REMOTEFD.TXT;3     	Describes use of remote virtual disk
VDD64.ZIP;6        	Virtual disk on contiguous file (or contiguous area
VDDRIVER.BUILD;1   	of disk). This one has the small mods so that it has
VDDRIVER_64.MAR;21 	been observed, on Alpha, to work with DEC volume
VDDRIVER_64.OPT;1  	shadowing, thus permitting one to shadow parts of
VDDRIVER_64X2.MAR;1	disks.
VDUSE.DOC;1        
ZLIB103.ZIP;1      
ZLIB104.ZIP;1      	Zip compress library. Used in cmp*.* compressing virt
			disk system.


Total of 33 files.