yeah but now we know too! David -----Original Message----- From: The IBM z/VM Operating System on behalf of RPN01 Sent: Tue 10/16/2007 11:33 AM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: [IBMVM] Omegamon XE for z/VM and storage definitions I hate it when I think of an answer my own questions as I type them, and then hit send anyway.
Changing the size of the guest from 512m to 528m and restarting solved the problem. The segment does indeed have to match the top of the guest¹s memory. -- .~. Robert P. Nix Mayo Foundation /V\ RO-OE-5-55 200 First Street SW / ( ) \ 507-284-0844 Rochester, MN 55905 ^^-^^ ----- "In theory, theory and practice are the same, but ³Join the story... Ride Ural.² in practice, theory and practice are different." ------ Forwarded Message I¹m in the process of installing Omegamon XE for z/VM and Linux, and I¹ve gotten to the point of defining the DCSS to the linux guest serving as the monitor collection agent. I defined the Linux guest having 512m of memory. I defined the perfout dcss with ³DEFSEG 21000-210FF SN², which, I think, should be from 528M 529M. I added ³mem=768m² to the zipl parameter line and reran mkinitrd and zipl. I did the ³modprobe dcssblk² to install the driver. I then did ³echo perfout > /sys/devices/dcssblk/add², and the response is as follows: tvmpzl01:/sys/devices/dcssblk # echo perfout > add -bash: echo: write error: Numerical result out of range Obviously, I¹ve missed something. Does the segment need to be immediately adjacent to the top of the guest¹s virtual memory? Or can the definition leave some space between the two, as above? What other problems can be encountered? The 2.6 device drivers manual documents the dcssblk driver, but includes no indication of what errors can be encountered or what messages might be generated. Any help, or nudges in the right direction, would be appreciated.
