IBM DS6000 Series manual 269

===>

Use ENTER to Perform Selection;

Use HELP Command for Help; Use END Command to Exit.

In this example all volumes that were selected through the filtering in the previous panel no longer allow any new allocation on these volumes. But this happens only after the updated SCDS is activated and copied into the Active Control Data Set (ACDS). A way to activate a new SMS configuration is through the ISMF Primary Menu panel with option 8. Under the CDS APPLICATION SELECTION choose option 4 and then 5 to finally perform the change.

To show how powerful, meaningful naming conventions for VOLSERs might be combined with the selection capabilities in ISMF, Example 13-11shows an example of how to change the status of 920 volumes at once. This example assumes a contiguous number range for the volume serial numbers.

Example 13-11 Indicate SMS volume status change for 920 volumes

STORAGE GROUP VOLUME SELECTION

Command ===>

CDS Name . . . . . : SYS1.DFSMS.SCDS

Storage Group Name : XC

Storage Group Type : POOL

Select One of the following Options:

31. Display - Display SMS Volume Statuses (Pool & Copy Pool Backup only)

2. Define - Add Volumes to Volume Serial Number List

3. Alter		-	Alter Volume Statuses (Pool & Copy Pool Backup only)
4. Delete		-	Delete Volumes from Volume Serial Number List
Specify a	Single Volume (in Prefix), or Range of Volumes:
Prefix		From		To	Suffix	Type
______		______		______	_____	_
===> DB2		001		300		X
===> IMS		001		350		x
===> LRG		001		150		X
===> TMP		001		120		x
Use ENTER	to Perform Selection;

Use HELP Command for Help; Use END Command to Exit.

Through this approach in utilizing the SMS volume status, the data gradually moves over to the new environment. This is not the fastest approach, but it is the approach with the least effort required. To speed up the process you run DFSMSdss full volume logical copy operations on all source volumes as suggested by the storage administrator, but do not specify target volumes. An example is given in Example 13-5 on page 264. Then allocation runs through the standard SMS allocation, automatically selects the correct target volume, and moves the data sets which are not allocated at the time the job executes. Another option is to run DFSMSdss migration not on a volume level, which allows more control, but plan for DFSMSdss migration jobs on the entire SG level, perhaps over the weekend. Example 13-12illustrates this. You might specify for STORGRP a list of storage group names to address multiple storage groups at the same time.

Example 13-12 DFSMSdss moves all data sets out of a storage group

//* COMMAND 'V SMS,VOL(AAAAAA,*),D,N'
// COMMAND 'D SMS,SG(SG1),LISTVOL'
//* --------------------------------------------------------------	***
//MOVEDATA EXEC PGM=ADRDSSU
//SYSPRINT DD SYSOUT=*

Chapter 13. Data Migration in zSeries environments 269