SGDBACTL

Storage Group intended for BSDSs and active logs for all

 

 

 

non-production DB2 subsystems. Because the corresponding

 

 

 

Storage Class has guaranteed space defined as yes, the DB2

 

 

 

administrator can direct the allocation of the data sets on volumes

 

 

 

which are dedicated to a specific DB2 subsystem.

 

 

SGDB2PLG

Storage Group intended for BSDSs and active logs for the

 

 

 

production DB2P subsystem. The Storage Class contains the

 

 

 

volumes for the DB2P subsystem. The DB2 administrator can

 

 

 

direct the allocation of the data sets on specific volumes of this

 

 

 

Storage Group. Because guaranteed space is used for the

 

 

 

SGDBACTL and SGDB2PLG Storage Groups, it is not strictly

 

 

 

necessary to create a separate SMS Storage Group for each DB2

 

 

 

subsystem, it simply is one of the many choices available to the

 

 

 

DB2 administrator.

 

 

Table 21. Relating SMS Storage and Management Classes to Storage Groups

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Management Classes

 

Storage Classes

 

 

 

 

 

 

 

 

 

MCDBICD

 

MCDBICW

 

MCDBICM

MCDBLV2

MCDBACTL

 

 

 

 

 

 

 

 

 

 

 

 

 

SCDBIC

 

SGDBIC

 

SGDBIC

 

SGDBIC

SGDBARCH

 

 

 

 

 

 

 

 

 

 

SCDBICH

 

SGDBICH

 

SGDBICH

 

SGDBICH

SGDBARCH

 

 

 

 

 

 

 

 

 

 

SCDBARCH

 

 

 

 

 

SGDBARCH

SGDBARCH

 

 

 

 

 

 

 

 

 

 

SCDBACTL

 

 

 

 

 

 

 

SGDBACTL

 

 

 

 

 

 

 

 

SGDB2PLG

 

 

 

 

 

 

 

Table 22. SMS Storage Groups for DB2 Recovery Data Sets

 

 

 

 

 

 

 

 

 

 

 

Storage Group

 

 

 

Auto-Migrate

Auto-Backup

Auto-Dump

High-Low Thr

 

 

 

 

 

 

 

 

 

SGDBIC

 

 

 

Yes

 

No

No

70-50

 

 

 

 

 

 

 

 

 

SGDBICH

 

 

 

Yes

 

No

No

70-50

 

 

 

 

 

 

 

 

 

SGDBARCH

 

 

 

Yes

 

No

No

60-40

 

 

 

 

 

 

 

 

 

SGDBACTL

 

 

 

No

 

No

No

99-0

 

 

 

 

 

 

 

 

 

SGDB2PLG

 

 

 

No

 

No

No

99-0

 

 

 

 

 

 

 

 

 

7.1.5 Assigning SMS Classes to DB2 Recovery Data Sets

SMS classes and Storage Groups are assigned through ACS routines. The naming standard from 3.8, “DB2 Data Sets Naming Conventions” on page 22 is used for these examples. This naming standard provides ACS routines with the necessary information for deciding the SMS classes.

66Storage Management with DB2 for OS/390

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IBM 5655-DB2, 5695-DF1 manual Assigning SMS Classes to DB2 Recovery Data Sets, Sgdbactl, SGDB2PLG

5695-DF1, 5655-DB2 specifications

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