We are using subfile for pst files since about 2 years and are happy with it.

The fileserver has around 150 userhomes all with pst. Most user have pst 
between 1 and 2 gb, some above.
We needed subfile because we did the daily backup over a 2 Mbit connection for 
about all together of 500 GByte data.

Some problems so far:
full subfile cache directory because tsm client did no proper housekeeping of 
this dir. (had to delete all files and start new after a year)
Restores of pst files sometimes a little "problematic" if administrator has no 
ntfs access to that file. 

I think the size limit for cachdir can be overcome by using more logical nodes 
on that server - each one with his own cache dir.

Regards
Stefan Holzwarth

> -----Ursprüngliche Nachricht-----
> Von: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] Im 
> Auftrag von Paul Zarnowski
> Gesendet: Donnerstag, 14. Februar 2008 20:03
> An: ADSM-L AT VM.MARIST DOT EDU
> Betreff: Re: Backing up PST files
> 
> At 12:33 PM 2/14/2008, Del Hoobler wrote:
> >The earlier description on subfile backup is not correct.
> 
> Thanks Del, Andy, Bill..  I thought I recalled something 
> about this from
> one of the technical sessions I attended at SHARE or one of the Oxford
> Symposiums.  What you said matches what I had originally thought.
> 
> All of this confirms the fact that subfile backup doesn't work for
> files >2GB, which leaves me with my problem of how to manage 
> and backup PST
> files, when they can (and will) grow >2GB.  Bill, thanks for 
> your comments
> on this.  I'll pursue ez-extract and try to figure out how it 
> would work in
> our environment.
> 
> If anyone else has any ideas on how our users can keep their PST files
> below 2GB, or how effectively subfile backup works with <2GB 
> PST files, I'd
> appreciate hearing of them. Thanks.
> 
> ..Paul
> 
> 
> 
> --
> Paul Zarnowski                            Ph: 607-255-4757
> Manager, Storage Services                 Fx: 607-255-8521
> 719 Rhodes Hall, Ithaca, NY 14853-3801    Em: psz1 AT cornell DOT edu
>