We are restoring several databases every night from a production server to a reporting server.
We just replaced the reporting server with a new Windows 2012 standard edition server.
The disks are internal RAID-5, 128 K stripe, 64 K offset, 64K allocation unit on this new reporting server.
The disks are aligned.
SQL Servers are both 2008 R2. Production is SP1 (10.50.2550). It runs on Windows 2008 R2 enterprise edition.
The new reporting server is SQL Server 2008 R2 SP2 (10.50.4000) – Windows 2012 standard. This is the server we are restoring to and have the issues
We are receiving this message for the log files with some but not all of our restores. These log files are all going to the same logical drive – both the ones with the message and the ones without a message.
There have been XXX misaligned log IOs which required falling back to synchronous IO. The current IO is on file ……..
We then receive the message
The tail of the log for database XXX is being rewritten to match the new sector size of 4096 bytes.
It is mostly the larger databases that are generating the message.
Can anyone tell us what the ‘misaligned log IOs’ messages means when SQL is recovering? What do we need to check and do we need to fix anything? OR is this an informational message that is fixed as the database is recovered?
There is almost no information about this error message on the internet.
KD