All what SQL Reddy said is right, and i think that he answered you in very good way , just i want to add very small note but very...

recommended, 2000 as min and 4000 as max. But tell me please what is the size of your DB?

i created my Mirrored DB in my server in the following steps:

1- i created endpoint in each of server through the following code:

on principle server:

CREATE ENDPOINT [endpointmirroring]

STATE=STARTED

AS TCP (LISTENER_PORT =1430(ANY...

thanks for your replay

try to install cu.# 1 for sp3 , may be it will help.

i installed sp3 in std sql 2005 anbd everything running ok .!!!

i have the following idea :

save all your information about your backup(name od database and path of file ....) to table , and then make SP which will contain courser...

I had the same error, but didn't know the reason, it appeared three or four times and then disappeared completly, if someone has analysis for this event please confirm us