To jump in at the tail end of this discussion..... I will be doing DB2/UDB backups, as well as Oracle 10g backups, under zLinux under z/VM on an IFL.
Getting messages and routing them to PROP isn't much of a problem. I'ved had a DDR based backup that used DYNAM/T for VSE as a tape manager running for over 10 years. The biggest problem is EOV processing. That ended up being 80% of the code and problems. I thought I would eliminate most of the problems by having high capacity tape drives. However, due to the cost of the media, we are also looking at stacking via an IBM VTS. Problem is, that the VTS emulates a 3490 drive and you have 1.2 GB or 2.4 GB emulated tape volumes. When you fill an emulated volume up, you need to drive EOV processing. Now I haven't filled a volume yet, but it doesn't look like the Linux world knows much about EOV processing. I've been told TSM understands the concept, but TSM requires FCP attached tape drives (only uses SCSI interface for tape), and I'm real hesitant on trying to justify separate but equal hardware (having two tape subsystems), for a server consolidation project. So, it would be interesting to here, in this discussion, any thoughts on handliing EOV conditions. Thanks Tom Duerbusch THD Consulting >>> [EMAIL PROTECTED] 6/1/2006 4:02 AM >>> > All you need to do is have VM:Operator send the .MOUNT Yes indeed, we already needed similar "remote mounts" as the number of VM systems was greater that what could be connected with the coax based 3270 interface to old STK robots. So we intercept VMTAPE manual mount requests and ship those to STKACS on another VM system over an RSCS link. Works perfectly well. > Also, you need to remember to issue [send over to z/OS] the STK DISMOUNT > when VM:Operator detects that the end user has DETACHED the tape drive Our VMOPER macro even keeps track on who owns a drive, which volser is mounted, it knows how to handle drives that are GIVEn to other users, etc. > Why not eliminate the linux server, which seems to me to be just ... I asked that too, answer: this linux server forms some standard interface on which you hook other clients, like LMS/VM Why does my customer use this LMS/VM SW and the Linux gateway? It all was decided by the z/OS folks without really consulting us, the VM group. As external advisor, I didn't want to open the discussion again. LMS/VM has some other advantages though, mainly the fact that it allows VM users to issue more STK commands than just Mount/Dismount. Something you probably would not try to create using an RSCS link to the z/OS console.
