RE: Informix 7.1 on Digital UNIX - raw or cooked?

In article <6tkbit$7gh$1@news.xmission.com>, David.Ashby@workcover.nsw.gov.au (Ashby, David) wrote: > > > The decision to go raw or cooked should not just be based on > performance. A more important consideration in my opinion is > recoverability. With a cooked file system IO's are fed to the OS for > writing, in a worst case scenario the following could happen: > - the server crashes > - Informix believes that a buffer has been written to disk > - but the OS has cached it and it has not been written > - when Informix is brought back online it does not recover the > suspect page > > If you can use KIO with raw chunks I believe that the OS cache is not > used. [cutting] I accept the above but I read the question as to whether to use raw disk or Digital OS because its rumoured to be quick. 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.co.uk