Re.: AIX and KAIO

Posted in 1998

dkabrbwj@e-mail.com — Wed, 04 Nov 1998 04:38:44 EST — source: Informix-list mailing list archive (1991-1998)

Jay Aymond wrote >>I would like to benchmark KAIO vs. Informix AIO VP's on AIX. >> >>How can KAIO be disabled and enabled on AIX 4.2 and Informix 7.24? >>it seems that setting and unsetting KAIOON does not work. >> The only way you can turn KAIO on using Informix Dynamic Server on AIX is to initialize the ROOT-dbspace as a raw-device. When you create a raw-device you get a char-part and a block-part You have to point at the char-part Try ls -l /dev/<raw-device-name> Output: Block-device brw-rw---- 1 informix informix 32, 9 05 okt 09:57 /dev/<raw-device-name> Char-device crw-rw---- 1 informix informix 32, 9 05 okt 09:56 /dev/r<raw-device-name> Bjarne W. Jensen Alm. Brand Denmark