Greetings Don,
Is this on z/VM 5.1.0 or 5.2.0? Your note mentions both.
Also, is the IPL trying to use ECKD or SCSI disks? If the latter, we have noticed some long IPLs if a one-to-one relationship is established between FCP subchannels and SCSI LUNs in the system configuration. Doing so is really overkill, as the fibre can handle connections to multiple LUNs with no problems, and it takes a lot of resources to establish so many unique FCP connections.
Regards,
Eric
Eric Farman
z/VM I/O Development
IBM Endicott, NY
| Rob van der Heij <[EMAIL PROTECTED]>
Sent by: The IBM z/VM Operating System <IBMVM@LISTSERV.UARK.EDU> 04/12/2006 04:28 AM
|
|
On 4/12/06, Don W. <[EMAIL PROTECTED]> wrote:
> We have been experiencing long delays when IPLing z/VM 5.2 from an EMC DM
> X
> 3000 DASD unit. Has anyone else seen this problem or are we missing somet
> hing?
I recall that long IPL times normally is when the IOCP defines a lot
of devices on some control unit that does not properly tell that these
devices are not there.
Rob
--
Rob van der Heij
Velocity Software, Inc
