Jim, I don't think those two statements are either necessarily correct, or incorrect. I would say that the "trick" is that the first cylinder to be dumped to tape (and restored to disk at real cylinder 0) needs to be what the Linux/390 system thinks is cylinder 0. That's where the IPL record information is going to be. So, depending on how the minidisk is set up (if using z/VM), and how you dump it, etc., etc., etc.
Mark Post -----Original Message----- From: James Melin [mailto:[EMAIL PROTECTED] Sent: Thursday, September 04, 2003 1:28 PM To: [EMAIL PROTECTED] Subject: CDL backup and copying the IPL record If I understand things correctly, a DD dump of a linux volume will not copy the IPL record, whereas a disk copy of the CDL image on the OS/390 side, will? Is that a true statement? Would this allow you to restore say a slightly pregnant mod-9 device (our dasd person gave me an approximately correct size mod-9 and our disaster recovery vendor uses real mod-9 geometry 1014 tracks too small) to a mod 27, and be able to read an IPL record off that device?