IBM System storage DS6000 Series, Redbook

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Chapter 24. Global Mirror interfaces
315
Figure 24-8 Define all needed paths for the Global Mirror environment through ICKDSF
Example 24-23 shows the JCL and command lines used to define paths between two storage
disk subsystems. Note that an online volume cannot be referred via the ICKDSF UNIT
parameter; ICKDSF assumes the volume to be offline when you use the UNIT parameter with
a corresponding z/OS device number. On the other side, it is most likely that a Global Copy
primary volume is online to the system from where you run the ICKDSF jobs. This requires
that for each device you address through an ICKDSF command, you provide a JCL DD
statement for this device; see Example 24-23.
Example 24-23 ICKDSF example to define paths
//* -------------------------------------------------------------- ***
//STEP01 EXEC PGM=ICKDSF
//SYSPRINT DD SYSOUT=*
//DD01 DD UNIT=3390,VOL=SER=RS7000,DISP=SHR
//SYSIN DD *
PPRCOPY DDNAME(DD01) ESTPATH -
PRI(X'7000' 22399) -
SEC(X'7800' 25941) -
LSS(X'00' X'00') -
FCPPATHS(X'000C000C' -
X'008C008C') -
WWNN(5005076300C09517 -
5005076300C0A2ED)
PPRCOPY DDNAME(DD01) QUERY PATHS
/*
Note the extra parameter to identify the LSS; primary and secondary parameters contain the
SSID besides the serial number. FCPPATHS contains the sending system adapter ID (SAID)
and the receiving SAID. A WWNN is also required to identify the source and target disk
subsystem.
It is recommended that you execute a query command to verify that the path definitions were
successfully accomplished. It may happen that not all paths are successfully defined, and you
want to find this out immediately.
Remote site
(secondary) Local site
(primary)
Master
Subordinate
LSS
LSS
LSS
LSS
LSS
LSS
Global Copy
paths
Global Copy
paths
Global Mirror
session paths
WWNN: 5005076300C09517
WWNN: 5005076300C0A2ED
Host
Paths