This document has not been formally reviewed for accuracy and is provided "as is" for your convenience.
DB2 returned error:
SQL2007N Specified buffersize of "8" 4K buffers is too small for "32768"
DB2 buffer sizes were set to the defaults
 Environment variable OB2_DB2BUFFNUM not found
 Keeping default value = 2
 Environment variable OB2_DB2BUFFSIZE not found
 Keeping default value = 8
Add these lines to the file
on the DB2 Server
Note: Buffer size during restore must be same or positive integer multiple of backup buffer size. If you increase the buffer number or size, you can encounter SQL2009C error. If you do encounter it, change database configuration parameter UTIL_HEAP_SZ. It should be bigger than buffer size * buffernum. Because now default buffer size is smaller, it has to be set via OB2_DB2BUFFSIZE to 1024, while restoring backup images performed before the changes.