On Saturday, 08/19/2006 at 08:20 ZE2, "Waite, Dick" <[EMAIL PROTECTED]> wrote: > I would agree with Marcy, vendor's matter. We switched last > weekend from z/VM 5.1 to 5.2 and all my Linux machines running SuSE SLE > 10.0 stopped working (I/O errors). They are all SCSI attached. You might > remember my post. Well we do NOT have IBM SCSI and so far we are still > running with the bypass of switching of QIOASSIST. I'm told by wise > people that this is working grand on IBM SCSI...
The QDIO Assist has nothing to do with the type of SCSI device (and, by inference, the SCSI payload). Instead, it deals with the structures that manage the payloads. So, this means that there is a relationship between the way the device driver creates said structures and the hardware itself (in the form of the assist). Further, CP has to create inputs that allow the assist to work. If you changed only z/VM, and turning off the assist gets everything working again, then there are only two possibilities: 1. The assist itself is broken 2. CP's management of the assist is broken Use of non-IBM devices may result in changes to the timing of events, surfacing defects not previously observed. Either way, the correct response to the issue is a PMR. (And I think one has been opened.) Alan Altmark z/VM Development IBM Endicott ---------------------------------------------------------------------- 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
