Hi, Does anybody knows if you replace the pst files with ost files, means that if you have 50 Gb. with psts files the database "priv1.edb" willhave a 50Gb. size? its gets smaller o larger than the pst files all together? Sorry for my English ... Im from Argentina Thanks...

If you import 50GB of PST into Exchange, the database will grow to aprox. 50GB For new mail Exchange will utilizesingle instance storage. that means if mail is sent to 5 people, Exchange will only save one copy of this mail per database. If doing this with PST files there would be 5 copies of the same mail.

thanks for answer my question, but what will happend if i reach the 75 Gb Limit. withthe Exchange server 2003standard edition? there is any way to make the .edb larger? more then 75 Gb. using the registry o with another solution (no exchange enterprise or EX 2k7 Std. Edt.) ?? Thanks ... im start to feel that i make a mistake buying the standard edition .... this users have 5 Gb. Pst files. DAMN THEN!!!! jejejeje

No. Exchange 2003 Standard Edition supports a max of 75GB. This is not by default. Exchange 2003 SP2 supports 18GB by default, and you have to edit the registry to increase it to 75. If you want more than that you can: add another Exchange 2003 Standard Edition Server for another 75GB upgrade to Exchange 2003 Enterprise (no-limit) upgrade to Exchange 2007 Standard or Enterprise (no limit) (not really an upgrade, requires another machine) Additionally, you may want to have your users evaluate and archive their data. 5GB mailboxes tend to perform poorly on the workstation, no matter what you are doing on the server end.