DIRECT_IO for Informix 14.10FC8

I see that with Informix 14.10FC8 we have a somewhat different onconfig explanation for the DIRECT_IO that what was used for Informix 12.10.FC10AEE: New: # DIRECT_IO - Set of flags that may be combined to control "special" I/O # 0x0 = Neither direct I/O nor concurrent I/O is used # 0x1 = Direct I/O is used if available # 0x2 = Concurrent I/O is enabled (on AIX operating systems) # 0x4 = Special I/O is enabled for TEMP DBspaces ################################################################### Old: # DIRECT_IO - Specifies whether direct I/O is used for cooked # files used for dbspace chunks. # Acceptable values are: # 0 Disable # 1 Enable direct I/O # 2 Enable concurrent I/O ################################################################### If I had set DIRECT_IO to 1 before, should I leave it as 1? Or should I change it to "0x1" for 14.10FC8? ------------------------------ John Dargan ------------------------------ #Informix

John: All numeric ONCONFIG parameter values can always be supplied either in decimal or hex (preceded by 0x), so either way is fine. The description was changed to make it a bit clearer that the values are bits so you can enable DIRECT_IO that includes temp dbspaces on Linux by setting it to 5 or 0x5 and on AIX be setting it to 6 or 0x6. (Only the Deity knows what the engine does if you set 0x3 or 0x7.) B^) ------------------------------ Art S. Kagel, President and Principal Consultant ASK Database Management Corp. www.askdbmgt.com ------------------------------