On 10/29/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > may I know what for these DIAG calls actually,and how they are going to help > to access the dasds from other operating systems other than Linux on Z-server.
I have no idea what your question is. The diagnose instruction is what some other platforms refer to as "hipervisor call" so it allows the virtual machine to request some service from the hipervisor. One such diagnose instruction that z/VM implements is for high-level disk I/O (unlike the SSCH type of interface). There is a Linux device driver that uses this diagnose instruction. For historical reasons, it also uses a disk layout that is convenient for CMS programs to look at the data. The other device driver (referred to as "eckd" driver) implements partitions that are sort-of understood by z/OS so that you could use z/OS utilities to backup your Linux disks. Rob ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
