IBM DS6000 Series manual SG1 SG2, Example 13-6 Select SMS storage group in Scds

		ESCON			ESCON
SG1	A	B	C	D	E	F	SG2
	ESS E20			ESS E20
RO *ALL,V SMS,VOL(AAAAAA),D,N				RO *ALL,VSMS,VOL(DDDDDD),D,N
RO *ALL,VSMS,VOL(AAAAAA),D,N				RO *ALL,VSMS,VOL(DDDDDD),D,N
V SMS,VOL(AAAAAA),D,N				VSMS,VOL(KKKKKK),D,N
VSMS,VOL(AAAAAA),D,N				VSMS,VOL(KKKKKK),D,N
IGD010I VOLUME(AAAAAA,MCECEBC) STATUSISNOW DISABLED,NEW				IGD010I VOLUME(KKKKKK,MCECEBC) STATUSIS NOW DISABLED,NEW
IGD010I VOLUME(AAAAAA,MCECEBC ) STATUS ISNOW DISABLED,NEW				IGD010I VOLUME(KKKKKK,MCECEBC) STATUSISNOW DISABLED,NEW
				DS 6000
		DS1		DS2
						Not drawn to scale
				FICON

Figure 13-8 Utilize SMS SG and Volume status to direct all new allocation to new volumes

When both the old hardware and the new hardware can be installed and connected to the host servers, the new volumes are integrated into the existing SGs, SG1 and SG2. Then change the SMS volume’s status to disable volumes A to F for new allocations. This is possible through an SMS system command and is propagated to all systems within this SMS-plex. DISABLE,NEW or D,N implies that all new allocations which are directed to SG1 can no longer happen on volumes A through F but must go to volumes DS1 or DS2. This allows you to gradually migrate the data from the old devices A to F onto the new and larger devices DS1 and DS2. This SMS system command has a drawback: It holds only until the next IPL. Then SMS will read again what the volume and SG status is from the respective SCDS and reload the ACDS accordingly. To make this change permanent you have to change the SCDS through the ISMF panels.

We go briefly through the ISMF panel sequence to make the SMS volume status complete and permanent.

Example 13-6is the first ISMF Storage Group Application panel where you choose the actual Source Control Data Set (SCDS), the storage group, XC, and select option 4 to alter the SMS volume status.

Example 13-6 Select SMS storage group in SCDS

STORAGE GROUP APPLICATION SELECTION

Command ===>

To perform Storage Group Operations,			Specify:
CDS Name . . . . . . 'SYS1.DFSMS.SCDS'
		(1 to	44 character data set name or 'Active' )
Storage Group	Name	XC	(For Storage Group List, fully or
			partially specified or * for all)
Storage Group	Type		(VIO, POOL, DUMMY, COPY POOL BACKUP,
			OBJECT, OBJECT BACKUP, or TAPE)
Select one of the following options			:
4 1. List	- Generate a list of		Storage Groups
2. Define	- Define a Storage Group

266DS6000 Series: Concepts and Architecture