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IBM System Storage DS6000 Series: Copy Services with IBM System z
Figure 24-12 ICKDSF - populate a Global Mirror session with primary volumes
Example 24-28 shows the JCL and commands to add volumes to a Global Mirror session.
Example 24-28 Add volumes to session through ICKDSF
//* -------------------------------------------------------------- ***
//STEP01 EXEC PGM=ICKDSF
//SYSPRINT DD SYSOUT=*
//SYSIN DD *
PPRC UNIT(7000) POPULATESESSION -
JOIN SESSIONNO(001) -
RANGE(NO) VOLCOUNT(1) -
IVOLLIST((X’00’))
PPRC UNIT(7100) POPULATESESSION -
JOIN SESSIONNO(001) -
RANGE(YES) VOLCOUNT(1) -
RVOLLIST(X'00',X'0F')
PPRC UNIT(7000) QUERY -
SESSIONSDEVICES
/*
You indicate the Global Copy primary volumes that will become part of the Global Mirror
session by either a list of CCA addresses, the IVOLLIST parameter, or a range of CCA
addresses in the RVOLLIST parameter.
Let us look at more details of the VOLCOUNT parameter. Example 24-29 shows a case of
multiple ranges of volumes specified in the PPRC POPULATESESSION command. Note that
this command applies only to the LSS that is addressed by the UNIT parameter.
Example 24-29 Multiple volume ranges in ICKDSF Global Mirror command with RVOLLIST
RVOLLIST ((X’00’,X’1F’),(X’30’,X’3F)) VOLCNT(2)
Remote site
(secondary)
Master
Subordinate
LSS
LSS
LSS
LSS
Long distance
Global Copy
volume pairs
Local site
(primary)
Flashcopy target
Secondary volumes = Flashcopy source
Global Mirror
session paths
Global Copy
paths
Global Copy
paths
Host
LSS
LSS
LSS
LSS
Primary volumes
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