Roger, et al,

Your comments made me investigate this further, and this is what I've
found out:

1. It appears that the default setting for MEMORYEFFICIENTBACKUP was
changed between TSM v5.2 and v5.3, from YES to NO.  In v5.3 this can
be seen by running the "QUERY OPTIONS" command from the command line.

2. The Users Guide for TSM v5.3 still documents the default as YES,
and is I believe in error.

3. Using the Edit-Preferences GUI, you can set it to YES, restart the
GUI, set it to NO, and the MEMORYEFFICIENTBACKUP NO option *will* be
added to the User Preferences file.

I don't really understand why this is a User preference and not a System one.

If all of the above is correct, then I no longer understand why you
were seeing poor performance, unless you somehow had
MEMORYEFFICIENTBACKUP YES in your Preferences file.

..Paul

At 08:55 PM 2/14/2006, Roger Deschner wrote:

OK, I set it [MEMORYEFFICIENTBACKUP] to NO and things did speed up
quite a bit.

But there's a rub: The GUI client on Mac behaves as though the default
were NO. If you un-check the "Use memory-saving algorithm" checkbox,
then it should place the MEMORYEFFICIENTBACKUP NO option into the User
Preferences File. But it doesn't. You have to go edit the file by hand.

I agree that the default should be NO, especially with modern Macs that
have plenty of memory, and in that case the GUI would be working
correctly.

Thanks for the tip!

Roger Deschner      University of Illinois at Chicago     rogerd AT uic DOT edu

--
Paul Zarnowski                            Ph: 607-255-4757
Manager, Storage Systems                  Fx: 607-255-8521
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