Ranga Nathan <[EMAIL PROTECTED]> wrote: >We are on STK V2X DASD array. We can do very well without Linux adding >further caching. Is there a way to tell Linux not to cache the DASD?
As David said, there's apparently no way to turn this off. For several years, I've been asking folks this same question. "You can't", they'd say. "But you keep saying, 'You can do anything, it's Linux!'", I'd respond. After saying that several times, I finally got an explanation that I think makes sense: this is a result of *ix's "everything is a file" philosophy. By the time the request gets down low enough in the OS that it hits the caching code, the fact that a page is from disk is long lost. That doesn't mean it couldn't be fixed (yes, I'm using the word "fixed" -- I see this as a serious design flaw, from a shared storage standpoint), just that it's non-trivial. HTH ...phsiii ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
