Mail Archives: opendos/2001/02/16/15:01:50
Hello Joe,
See below.
----- Original Message -----
From: "da Silva, Joe" <Joe DOT daSilva AT emailmetering DOT com>
To: <opendos AT delorie DOT com>
Sent: Thursday, February 15, 2001 8:56 PM
Subject: RE: CP/M Question (#2)
> Oh, yeah ... I forgot about MP/M ... if this runs CP/M applications
> (I presume it does), I'll need to look into it's memory usage as
> well. :-/
Yes, it is an 8 bit CP/M OS for multiusers.
> Also note that DR-DOS' Diskcopy command can
> read and write disk(ette) image files too (ie. like FDCOPY).
Yes, but it cannot perform a format like FDCOPY can. You can format a
3-1/2" floppy to 160K, 180K, 320K, or 360K formats and have it boot the
system from the 3-1/2. You cannot do this with DRDOS DISKCOPY. It
complains about the diskette. Of course the way around this is to go to
your CMOS setup and lie to the system and tell it that the 3-1/2" drive
is a 360K 5-1/4" drive. Onve the diskette is vreated, you can set the
CMOS back to the proper setting and still boot the diskette from floppy.
I like DXP the best though. With it you can tell it that you want the
format changed and can use it with 5-1/4 HD or any 3-1/2 drive and it
will also slow the datarate down. It also has data compression (not very
good though) and it allows you to input up to 3 lines of information
about the file. That is the feature I really like.
> Speaking of which, the Oakland CP/M archive is no more,
> since some traumatic system failure at Oakland (a little
> time back)! :-(
Is the whole world nuts, or just insane? Haven't people heard of
something called a backup? Sometimes I even backup a backup, especially
old stuff I may no longer be able to get.
I run across this all the time, people just wait until a disaster
happens and then they still do not learn from it. I have always backed
up software, even back in the days of paper tape and punch cards, and
cassette tapes. I have two and sometime three diskettes of the same
software. I recently backed all of those old diskettes and all the newer
stuff to tape. Sometimes I have a hard time finding something, but I
know it's there someplace. If I remember the actual name of the file or
enough if it to do a search, I can find which tape it is on quickly,
until recently because of Long File Names, I cannot use a DOS backup of
those. I will probably use Linux and build a database and back all that
stuff using TAR. I can restore a TAR backup to any OS I use. I can also
do image backups using dd in Linux of any OS and restore it from Linux.
If Linux should get corrupt, I can use DOS Linux to restore the full
Linux. Like I say, I have backups of backups. I don't take chances.
Although once in a while I goof up and did not backup something I
thought I had. I have run across a bad tape or two and lost some files.
I ran out of tapes and recently got some more and I am now backing up
all the stuff I have been downloading over the past few months and had
not backed up.I also bought an external Ditto Easy 400/800 tape system
which will also read and write QIC-80 DC-2120 tapes, so I can transfer
stuff from my system to my brother's system as he has a Colorado Jumbo
250 drive. I picked up 8 brand new sealed tapes for three bucks and a
quater + shipping. Only paid $8.50 for the drive and power supply and
found two TR-1 400/800MB tapes for a buck and a quarter. Got 4 DC-6250
brand new sealed tapes for my SCSI drive for 5 bucks. I got another
Ditto Easy Drive for $10.03 which was factory refurbished without a
power supply. I figured any universal external power supply would work.
Oooops, wrong, this thing takes 18VAC center taped @1800ma. So I called
Iomega and told them I needed a power supply. They gave me the run
around and so I emailed them. They finally told me to call the RMA
number. I did and they sent me one FREE. I only bought the second one
because it came with a power supply and those things cost 20 bucks and a
cable. So now I have two diitto external tape systems and can sell one
of them and get most of my money back. Also got the cable with the
second one. So I now have one factory refurbished drive, a brand new
power supply and an external cable and can sell a used drive and used
power supply! Not too shabby!!!!
With prices like these, I cannot understand anyone not backing up their
files. Many people now have R/W CDROMs (which are getting pretty low
priced for new ones and used ones are cheap) and you can buy write once
CDs for about two bucks each in small quantities and back up 650MB of
files on each one and make another copy for another two bucks. They can
then store one copy in a very safe place and have the other one on hand.
Pat
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