Bob,

> New related question: Is there a FAQ about how any of these criteria
> are set?

No. If Retrospect is reporting that it is about to back up files you know
have not changed since your last backup, take a closer look at a sample
file. Choose a file and start a restore by search for that file. When you
get to the final window (you don't actually have to do the restore), click
Files Chosen and Get Info or Properties on the most recent version of the
file on the backup. Print or take a screenshot of this window.

Now, go to the Configure tab from the Retrospect Directory and click
Volumes. Choose the volume the file is on and click Browse. Find the file in
question and Get Info or Properties on it. Put the two windows side by side
and look for even the slightest difference in any of the criteria I listed
above. 

Many things can cause a change in a file, even if the file has not been
accessed by the user. The operating system, as well as applications, are
constantly making changes to files. Further, whenever you change time zones
in the Date & Time control panel, your creation and modify dates are offset.
We have also found an issue in Mac OS 8.1 with HFS+ formatted volumes where
changing the Daylight Savings Time setting offsets the creation and modify
dates of all files.

There is also an issue where AppleShare might make a time translation when
connecting to another machine whose time is off by more than a certain
number of minutes. This time translation would also offset the creation and
modify dates of all files. I have also seen this happen when upgrading
operating systems, transferring files to different machines, or doing a
complete restore of data with Retrospect.

If you copy a file from a Mac to a PC, Retrospect will recopy it.

Please call us if you have any more questions.

Matthew
Technical Support Specialist
Dantz Development Corporation
925.253.3050 
[EMAIL PROTECTED]

> From: Bob Durst <[EMAIL PROTECTED]>
> Reply-To: "retro-talk" <[EMAIL PROTECTED]>
> Date: Wed, 28 Jun 2000 14:19:50 -0700
> To: "retro-talk" <[EMAIL PROTECTED]>
> Subject: Ans: Storage space smarts + new?
> 
> Thanks for the 'smart' reply. Glad to see there is some good sense in RS.
> 
> New related question: Is there a FAQ about how any of these criteria
> are set? For instance: if file A1 was created on computer 1 and then
> copied to computer 2 will it meet the 'already backed up criteria' or
> will the modify date and time be altered or creation date be
> different? I wouldn't expect any of the criteria to have changed in
> the above scenario.
> Does this scenario change if both 1 and 2 are Mac's vs PC's? How
> about if the file is created on Mac 1 then copied to PC 2?
> 
>> Bob,
>> 
>> Retrospect uses several matching criteria to compare files that have already
>> been backed up to what is about to be backed up. If one of the following has
>> been changed at all, Retrospect will back up the file again:
>> 
>> MAC files:
>> name, size, type, creator, creation date and time, modify date and time, and
>> label.
>> 
>> PC files:
>> name, size, modify date and time, file system.
>> 
>> Therefore if the A1 files are identical in all of the ways listed above,
>> there should only be one in your backup set if matching is set to its
>> defaults.
>> 
>> Matthew Tevenan
>> Technical Support Specialist
>> Dantz Development Corporation
>> 925.253.3050
>> [EMAIL PROTECTED]
>> 
>>> From: Bob Durst <[EMAIL PROTECTED]>
>>> Reply-To: "retro-talk" <[EMAIL PROTECTED]>
>>> Date: Wed, 28 Jun 2000 13:14:36 -0700
>>> To: [EMAIL PROTECTED]
>>> Subject: Storage space smarts
>>> 
>>> I'm curious as to how smart RS is about storage space on a backup
>>> set. I'll outline the simple situation for the experts to explain to
>>> me how RS handles it.
>>> 
>>> Computer 1 contains files: A1, B1, C1
>>> Computer 2 contains files: A1, B2, C1
>>> 
>>> Both are being backed up to the same backup set. In the backup set
>>> will there be two copies of A1, and C1 and one each of B1, and B2, or
>>> will there only be a single copy of A1 and C1 with pointers in both
>>> computers file lists that they each contain A1 and C1 but 1 contains
>>> B1 and 2 contains B2?
>>> 
>>> I wouldn't care if the files were small, but if they are BIG it makes
>>> a difference.
>>> --
>>> -Bob D.
>>> Builder and Pilot of Kinetic Sculpture Vehicle "Killer Tomato"
>>> Visit my web site (http://www.bcc.orst.edu/~durstb/ )for pictures and
>>> additional info.
>>> 
>>> 
>>> 
>>> --
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>>> 
>> 
>> 
>> 
>> --
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> 
> -- 
> -Bob D.
> Builder and Pilot of Kinetic Sculpture Vehicle "Killer Tomato"
> Visit my web site (http://www.bcc.orst.edu/~durstb/ )for pictures and
> additional info. 
> 
> 
> 
> --
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> Problems?:       [EMAIL PROTECTED]
> 



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