IBM DS6000 User Manual

Page 344

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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

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

Primary volumes