Re: Informix and SCO

In article <325722$1hd@inferno.mpx.com.au> scottmc@jolt.mpx.com.au (Scott McClintock) writes: >IDE drives *can* work very effectively for that size database if you >do the following: > 1) Use fast ones .. < 14ms (this obviously applies to SCSI too) > 2) Use a Cache IDE controller ... *HUGE* performance improvement > over non-cache controllers. Careful there -- using caching controllers is VERY RISKY unless: a) the controller implements wait-for-physical-write on write() calls against raw devices (very rare... requires relinking kernel with controller vendor drivers), and/or b) you use a UPS. Otherwise, your database(s) can end up in inconsistent states upon a power failure or controller behavior. I've seen it, and it ain't pretty. >We use Tekram VL-BUS cache controllers with 4-16Mb cache + WD 325/500Mb >drives. The results are impressive and the price usually works out >cheaper than and equivelant SCSI-II/EISA config. Without proper precautions, "cheaper" == "you get what you pay for"... -- Alan Denney aland@informix.com {pyramid|uunet}!infmx!aland "Well, Mr. Bunning, if there's a way that you can ever come up with to tax caffeine, cholesteral, salt, sugar, and alcohol, we'll be glad to have a look at it." -- Hillary Rodham Clinton, testifying before Congress