What does it mean? What do I do about it?
Example alert from the ProTop Portal:
What does it mean?
This alert tells you that the Before Image block size is less than the current default of 8K.
The default BI block size (8K) is sufficient for applications with low transaction rates. However, if performance monitoring indicates that BI writes are a performance bottleneck and your platform's I/O subsystem can take advantage of larger writes, increasing the BI block size might improve performance.
What to do?
1. Use the PROSHUT command or the PROMON Shutdown a Database option to shut down the database.
2. To change the BI block size, use the PROUTIL TRUNCATE BI command, as shown:
proutil db-name -C truncate bi -biblocksize size
For size, specify the new BI block size in kilobytes. Valid values are 0, 1, 2, 4, 8, and 16. You will want to use at least 8.
If all else fails...
Contact us at support@wss.com or use the online chat. We'll be happy to help.