The IODEVICE Addresses represent the FCP subchannel devices out to the SAN. They are not the actual disk volumes. They are portal devices, much like how OSA subchannel devices are to an IP network.
The FCP subchannels are all you will configure in HCD or IOCP. The actual disk volumes are configured either in Linux or VM via the WWPN of the storage controller port and the LUN name associated with the actual volume. Please see one of my SCSI presentations on my developer website for more info: http://www.vm.ibm.com/devpages/wilkinss/ I would recommend the WAVV 2007 version. Regards, Steve. Steve Wilkins IBM z/VM Development "Neubert, Kevin (DIS)" <[EMAIL PROTECTED] To V> [email protected] Sent by: The IBM cc z/VM Operating System Subject <[EMAIL PROTECTED] HCD FCP IODEVICE ADDRESSes ARK.EDU> 05/21/2007 12:13 PM Please respond to The IBM z/VM Operating System <[EMAIL PROTECTED] ARK.EDU> I am new to FCPs and associated storage. I have reviewed the numerous FICON/FCP manuals on the subject. I understand the setup of the CHPID and CNTLUNIT (no SWITCH and LINK information respectively, etc.), but I am not clear on the IODEVICE ADDRESSes. If I have one z/VM partition, two FCPs and 60 volumes (505.8 GB) via two CNTLUNITs what are the IODEVICE ADDRESSes based on? The 60 physical volumes or some logical value based on how the total storage will be divvied up for guest use? Regards, Kevin
