I have two SQL 2008 R2 instances installed - one is Developer edition and the other Express. Yesterday I installed SQL 2008 R2 SP1 and now I can't access any of the databases under either instance. DBCC CHECKDB spat out a huge list of errors on one database
under the Developer Instance and, under the Express instance I get the message:
Database 'MyDb' cannot be opened due to inaccessible files or insufficient memory or disk space.
whenever I try to execute a simple SELECT on a table. Under Express I also tried to open up the databases in Management Studio's object explorer. It failed. When I looked at the error log, it had a message for each database along the lines:
Cannot use file MyDb.mdf because it was originally formatted with sector size 512 and is now on a volume with sector size 3072.
The database files have not been moved.
Any suggestions would be greatly appreciated.