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Date:	Sat, 3 Aug 2002 18:30:29 PST7
From:	Harry Chris Motin <hmotin@attglobal.net >
Reply-To:	scoug-help@scoug.com
To:	scoug-help@scoug.com
Subject:	SCOUG-Help: Re: Drive Image Backups

Content Type: text/plain

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Sandy,

What I mean here is that when you make a single backup of your C:\
drive, for example, the resulting cfull*.dat file is how big?? Your C:\
drive is so big and that results in a backup *.dat file that is so big.
What is this size for everytime you backup C:\, similarly for D:\, etc.

Earlier you told me that you could backup your D:\ drive 5 times before
you approached the 2.1GB limit. From that I surmised that your
dfull*.dat file increases in size by 2.1GB/5 each time = 450971566
bytes. Now, as you put more the stuff on your different drives, or
conversely do some cleaning, the values for "CMaxSize", "DMaxSize",
"ECMaxSize", etc. should be updated.

Like I said, I hope that there are no bugs in the code that I wrote. But
I cannot be sure. Let me know, if you have any problems.
HCM

______________________________________________________________________________

Sandy Shapiro wrote:
>
> =====================================================
> If you are responding to someone asking for help who
> may not be a member of this list, be sure to use the
> REPLY TO ALL feature of your email program.
> =====================================================
>
> >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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