DataBase Mirroring and Manual Failover-question.

Hello everyone,

I have a question about manual failover in a high-safety(synchronous) configured mirroring session.

I am using PrepLogic study/exam materials and a question about manual failover seems to be incorrect. Here is the question and explanation as to why it is correct:

B. Manual failover can only occur with database mirroring sessions running in high-safety
modes.
Correct. This type of role switch is particularly appropriate when you want to upgrade
hardware or software on either the principal server or mirror server in a database
mirroring session. Because you can only implement a manual failover with high-safety
mode, there is no possible loss of data.

____________________________________________________________________________

Based on all my studies I have determined that manual failover is required when mirroring is configured as High Performance(async/low safety) and High Protection(synchronous/high safety).
Since manual failover is required in a High Performance configuration, this means this answer is incorrect.

Thanks for any responses.

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Comments

brad-

I could be wrong, I'm tired and dont feel like finding the straight answer right now...

but I thought that the only time you had automatic failover was with high availability and a witness, else it was manual failover.

savior faire

Thanks for the reply Brad.

Manual failover, according to all documentation I have read(including the MS Press 70-431 text) can occur in high performance(low-safety, no witness) and high protection(high safety with no witness).

I appreciate your reponse.

RobertKaucher

savior faire, are you using the full version of preplogig including the sims? If so, how do you like it?

savior faire

savior faire, are you using the full version of preplogig including the sims? If so, how do you like it?

I do not have the simulations... just the multiple choice. I was not aware they offered those, I should check their web iste again.

I had asked for feedback and/or opinions about PrepLogic materials. I purchased the exams, the Mega Guide, the Audio CDs for both the Lecture and Quiz Me Series. I listened to the CDs when in the car, which I rarely am in, and while going to sleep at night(better than sleeping pills!).

When I first started the PrepLogic Practice Exams and read the first question, my eyes glazed over and I had no clue what the question was asking. I did customized tests of 10 to 15 questions at first, depending on how much time I had. I barely got any questions right. Forced me to get into the SSMS GUI and the documentation, and really get buckled down. I seem to have gotten my act together...