Restart SQL Agent.

I have installed SP3 on a cluster without any problems.

If an active-active cluster, you can put 2 instances on one node and then install SP3.

You do not have to change the code.

1-If you have multiple disks can put in a Log File and Data in another.

2-Detach database

3-Move Log to anohter disk

4-Atach database

Another test:

1-Create...

You might try restarting the SQL Agent.

You can create a new filegorup and assign it to the table access is slower.

Got all the files Data and Log located on the same disk?

Hi,

The user that runs the SQL Agent has permissions on the directory?