On Tue, Jul 28, 2009 at 7:52 PM, Tom Duerbusch<[email protected]> wrote:
> Can cache be turned off for a volume on the DS6800? > > I don't think so. But I would like to confirm that. I believe it's up to the device to decide what to do with the cache bits in the channel program. Since it emulates "real disks" using other type of hardware, it may be appropriate to ignore some of those directives when they were meant to address issues that don't apply to this kind of implementation. The cache in such a DASD subsystem plays a different role than control unit cache in 3990, so there's a good reason not to take the bits literally The curious mind makes me ask: why would you want to do that? Rob
