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Number   :  1065
Date     :  2001-11-28
Author   :  Melissa Evans
Subject  :  Re: Lost files/CD backups/Caution
Size(KB) :  1


--- In xxcopy@y..., "Dan Anderson"  wrote:
>> Melissa, could you be more specific regarding files being lost 
when a writable CD is closed. That doesn't sound like a "standard 
technology" scenario. What aspect of closing a writable CD would 
result in lost files. Is anyone else aware of this feature of closing 
a CD. The only factor that I can think of is that file names 
sometimes must be modified if they exceed something like 60(??) 
characters, but that would not be a common occurrence. Dan

Dan,

We use XXCOPY in a batch file to send data files (whose names are 
8.3) from a network archive to one-time-only CDs. The command line 
uses the switch /V2. A log is created, then appended to a master log 
on the network, which serves as an index for finding files later. The 
files go into the same subdirectory structure from which they came, 
which is drive:\product\part\surface, basically. Files that have 
been copied have their archive bits cleared on the network, and files 
with cleared archive bits are deleted from the network if they are 45 
days old or older. Kan's team has written a splendid, splendid 
executable.

We are using PCs with Adaptec DirectCD. When a CD is filled up (the 
batch file uses Kan's error codes to send a message to the user), the 
user closes the CD and starts a new one. When we discovered we were 
losing files, the engineer responsible for archiving conducted some 
experiments: he believes the files are lost or corrupted when the CD 
is closed. No other cause has been found.

He is now determining the best way to go about copying the files to a 
hard drive before recopying them to CDs. It will require some 
thought, to make it an automatic process that can be performed at any 
analysis station. Since I'm the one who will be writing the batch 
file, I'll be very interested to hear what Mr. Forest has to say to 
this Tree. He has vision; I wear glasses.

Melissa,
at Tinsley or ASML or whatever we're called now, dunno



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