如何将多个DDR文件备份到一盘磁带上, 然后如何恢复到磁盘?

z/VM
z/VM: 如何将多个DDR文件备份到一盘磁带上, 然后如何恢复到磁盘?

举例说明:
(1)Create A CMS file:
BACKUP ZVM51 A1 F 80
====>
0 * * * Top of File * * *
1 IN 125 3390
2 OUT 181 3590 ( LE )
3 SYS CONS
4 DUMP ALL
5 IN 124 3390
6 OUT 181 3590 ( LE )
7 SYS CONS
8 DUMP ALL
9 IN 123 3390
10 OUT 181 3590 ( LE )
11 SYS CONS
12 DUMP ALL
13 * * * End of File * * *

(2)then 'DDR BACKUP ZVM51 A'

(3)when restore 123 (CS1IPL):
in 181 3590 (SKIP 2)

and Below is the restore example:
0 * * * Top of File * * *
1 PROMPT OFF
2 IN 181 3590 ( LE )
3 OUT B420 3390
4 SYS CONS
5 RESTORE ALL
6
7 IN 181 3590 ( LE )
8 OUT B421 3390
9 SYS CONS
10 RESTORE ALL
11
12 IN 181 3590 ( LE )
13 OUT B422 3390
14 SYS CONS
15 RESTORE ALL