ALLDATA and ALLEXCP Interactions

Table 1 and Table 2 describe the functions of the ALLDATA and ALLEXCP keywords during a data set copy to LIKE and UNLIKE devices, respectively.

Table 1. ALLDATA and ALLEXCP Interactions When Copying to LIKE Device. Read the first eleven columns to find the row that matches your situation. Read the last column to find what DFSMSdss does.
Y

Yes

N

No

X

Either

-

Not Applicable

1

Allocate and copy all the allocated space

2

Allocate and copy only the used space

3

Allocate and copy only one track

4

Allocate all the allocated space, and copy only the used space

5

Allocate all the allocated space, and copy only one track

6

Do not process the data set
Empty Data Set	EOF as First Record	DSORG	Load Module	ALLDATA(*)	ALLDATA(dsn)	ALLEXCP	NOPACKING	REBLOCK	Action
X	X	Undefined	-	X	X	X	-	X	1
N	X	Sequential¹	-	N	N	X	-	X	2
N	X	Sequential¹	-	Y	-	X	-	N	1
N	X	Sequential¹	-	Y	-	X	-	Y	4
N	X	Sequential¹	-	-	Y	X	-	N	1
N	X	Sequential¹	-	-	Y	X	-	Y	4
N	X	Partitioned²	X	N	N	X	N	X	2
N	X	Partitioned²	X	N	N	N	Y	X	1
N	X	Partitioned²	N	Y	-	X	N	X	4
N	X	Partitioned²	N	-	Y	X	N	X	4
N	X	Partitioned²	Y	Y	-	X	N	N	1
N	X	Partitioned²	Y	Y	-	X	N	Y	4
N	X	Partitioned²	Y	-	Y	X	N	N	1
N	X	Partitioned²	Y	-	Y	X	N	Y	4
Y	N	Sequential¹	-	X	X	N	-	X	6
Y	N	Sequential¹	-	X	X	Y	-	N	1
Y	N	Sequential¹	-	X	X	Y	-	Y	6
Y	Y	Sequential¹	-	X	X	Y	-	N	1
Y	Y	Sequential¹	-	X	X	Y	-	Y	3
Y	Y	Sequential¹	-	N	N	N	-	X	5
Y	Y	Sequential¹	-	Y	-	N	-	X	3
Y	Y	Sequential¹	-	-	Y	N	-	X	3
Notes: ¹ When ALLDATA or ALLEXCP is specified for a sequential extended format data set, data beyond the last used block pointer is not retained. The target data set is allocated with the same amount of space as the source data set during a logical restore or copy operation. ² Partitioned data sets that have directories (whether or not there are empty members in the directory) are treated as not empty.

Table 2. ALLDATA and ALLEXCP Interactions When Copying to UNLIKE Device. Read the first twelve columns to find the row that matches your situation. Read the last column to determine what DFSMSdss does.
Y

Yes

N

No

X

Either

-

Not Applicable

1

Allocate the same number of tracks as the source, and make a track image copy.

2

Allocate and copy only the used space

3

Allocate and copy only one track

4

Allocate all the allocated space, and copy only the used space

5

Allocate all the allocated space, and copy only one track

6

Do not process the data set
Empty Data Set	EOF as First Record	BLKSIZE=0 Data Set	DSORG	Load Module	Target Tracksize > Source	PROCESS (UNDEF)	ALLDATA (*)	ALLDATA (dsn)	ALLEXCP	Action
X	X	X	Undefined	-	X	N	X	X	X	6
X	X	X	Undefined	-	N	Y	X	X	X	6
X	X	X	Undefined	-	Y	Y	X	X	X	1
N	X	N	Sequential¹	-	X	-	N	N	N	2
N	X	N	Sequential¹	-	X	-	Y	-	X	4
N	X	N	Sequential ¹	-	X	-	-	Y	X	4
N	X	Y	Sequential ¹	-	X	-	X	X	X	6
N	X	X	Partitioned ²	N	X	-	N	N	N	2
N	X	X	Partitioned ²	N	X	-	Y	-	X	4
N	X	X	Partitioned ²	N	X	-	-	Y	X	4
N	X	N	Partitioned ²	Y	X	-	N	N	X	2
N	X	N	Partitioned ²	Y	X	-	Y	-	X	4
N	X	N	Partitioned ²	Y	X	-	-	Y	X	4
N	X	Y	Partitioned ²	Y	X	-	X	X	X	6
Y	N	X	Sequential ¹	-	X	-	X	X	X	6
Y	Y	N	Sequential ¹	-	X	-	N	N	N	3
Y	Y	N	Sequential ¹	-	X	-	N	N	Y	5
Y	Y	N	Sequential ¹	-	X	-	Y	-	N	3
Y	Y	N	Sequential ¹	-	X	-	-	Y	X	5
Y	Y	Y	Sequential ¹	-	X	-	X	X	X	6
Notes: ¹ When ALLDATA or ALLEXCP is specified for an extended-sequential data set, data beyond the last used block pointer is not retained. The target data set is allocated with the same amount of space as the source data set during a logical restore or copy operation. ² Partitioned data sets that have directories (whether or not there are empty members in the directory) are treated as not empty.