KAIO with Solaris 2.6

From what I have understand, KAIO is off by default. The release note of my Informix (7.30UC5) running on a Solaris 2.6 (SunOS 5.6 Generic_105181-11 sun4u sparc SUNW,Ultra-250) tells me KAIO is supported. I have several raw devices but also some cooked files. (raw devices are strips made with DiskSuite) How can i enable KAIO then ? If I do a onstat -g ath or onstat -g iov I can see there is no kio thread. I have try to set the KAIOON environment variable to 1, but it doesn't change anything. Any ideas ? regards, Francois

Actually on Solaris KAIO is enabled by default, most platforms are except FAIK HPUX. If you do not have the Solaris Kernel Asynchronous I/O modules installed it will not work and the engine will disable KAIO. Check the release notes for the required OS options and patches. Art S. Kagel Francois Baligant wrote: > > From what I have understand, KAIO is off by default. > > The release note of my Informix (7.30UC5) running > on a Solaris 2.6 (SunOS 5.6 Generic_105181-11 > sun4u sparc SUNW,Ultra-250) tells me KAIO is > supported. I have several raw devices but also > some cooked files. (raw devices are strips made > with DiskSuite) > > How can i enable KAIO then ? If I do a onstat -g > ath or onstat -g iov I can see there is no kio > thread. > > I have try to set the KAIOON environment variable > to 1, but it doesn't change anything. > > Any ideas ? > > regards, > Francois

In article <37EEA38B.8A15A79D@be.euro.net>, francois@be.euro.net (Francois Baligant) wrote: > > From what I have understand, KAIO is off by default. > > The release note of my Informix (7.30UC5) running > on a Solaris 2.6 (SunOS 5.6 Generic_105181-11 > sun4u sparc SUNW,Ultra-250) tells me KAIO is > supported. I have several raw devices but also > some cooked files. (raw devices are strips made > with DiskSuite) > > How can i enable KAIO then ? If I do a onstat -g > ath or onstat -g iov I can see there is no kio > thread. > > I have try to set the KAIOON environment variable > to 1, but it doesn't change anything. > > Any ideas ? > > regards, > Francois > KAIO is on by default, it's part of the base OS, therefore will be used unless you tell it otherwise. AFAIK you can't not install it. I'd check out Sun Online to see if there are problems, but as you describe it it should work. Paul Watson # I don't suffer from WF Software Ltd. # stress, I'm just Tel. (+44) 1436 674729 # a carrier Fax. (+44) 1436 678693 # www.wfsoftware.com