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Date:	Sat, 3 Aug 2002 17:12:51 PST7
From:	sshapiro@ucsd.edu (Sandy Shapiro)
Reply-To:	scoug-help@scoug.com
To:	scoug-help@scoug.com
Subject:	SCOUG-Help: Re: Drive Image Backups

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>The attached REXX script for automating you use of clback.exe may be
>useful to you.

Harry,
This is terrific. I am going to get right on it -- I think I can figure
this out. And it will help me better understand REXX.

I have one question right at the start:

>9. In order for the program to correctly determine whether or not an
>existing backup file can receive another backup, it has to know the
>maximum size of you 5 different backups. You must supply that information
>on lines 31 through 35 of the script. You must change the values of the
>"CMaxSize", "DMaxSize", "ECMaxSize", "FMaxSize" and "GMaxSize" variables
>to the maximum sizes, in bytes, of your C:\, D:\, E:\, F:\ and G:\
>backups, respectively. Right now these variables are each equal to zero.
>For example, you mentioned that you can get 5 of the D:\ backups into its
>*.dat backup file container before you reach the 2.1GB limit. I assume
>that your D:\ backup is the largest. Therefore, perhaps each D:\ backup
>is a maximum of 2254857830/5 = 450971566 bytes in size (450971566 bytes =
>2.1GB/5). If so, then that is the number you place on line 32 of the REXX
>script. Remove the 0 and replace it with 450971566.

If each partition is backed up in a separate file, wouldn't the maximum
size for each backup be 2.1 GB? That is, wouldn't the MaxSize for each
backup be 2254857830?

I just got a bunch of 9.1 GB SCSI hard drives from Upgrade Solution. They
are the same size as my tapes, and I will fill them up and rotate them
just like I was doing with my tapes. With compression, I should be able to
get close to 20 GB on each hard drive. With my setup, that is about a
month's worth of data.

Thanks,
Sandy

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