¿ªÔÆÌåÓýMatthew, You are correct the CPU serial isn¡¯t critical, and is only used in couple of places in VM/CMS. In fact in the base VM/370R6 I don¡¯t believe anything uses it. There are modifications in VM370CE which use it. One adds a SYSID macro to DMKSYS which allows you to specify multiple CPU serial numbers and system name pairs. There are then further modifications to examine this data and include it in banner pages and the bottom right of 3270 sessions. The SYSTEM NETID file does a similar job for CMS. The IDENTIFY command uses the CPU ID? to identify which line in this file applies and then reports system name and the ID of the RSCS virtual machine. ? On VM/SP its used by SENDFILE but I don¡¯t think we have SENDFILE on CE. I assume its in two places because CP does not have access to, or even know, which disk CMS is going to use as the S-Disk. ? Dave ? ? From: [email protected] <[email protected]> On Behalf Of Matthew T. Kromer
Sent: Friday, August 25, 2023 11:55 AM To: [email protected] Subject: Re: [h390-vm] Managing Host ID on VM370CE ? I¡¯m pretty sure, albeit going from memory, that SYSTEM NETID is used primarily by the NAMES module and very little inside CP or CMS actually cares about the CPUID. ?I don¡¯t remember what tells CP what to display in its host name fields, it may have been in DMKSYS, but it¡¯s probably been since 1992 that I last generated a VM SP nucleus. With ESA it was set in the system config. ? While I¡¯d enjoy having a VM SP 5 system image, I don¡¯t have one and I haven¡¯t used CE that much to refresh my memory on the SP build process¡ ? Melinda Varians cookbook has everything in it.
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