SCF Reference Manual for J-Series and H-Series RVUs

SCF Commands
SCF Reference Manual for J-Series and H-Series RVUs—529649-003
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ASSIGN Command
extent-spec
is the size of the file extents allocated to the file. The formats for extent-
spec are:
EXT [(] pri-extent-size [)]
EXT ( [ pri-extent-size ] , sec-extent-size )
pri-extent-size
is the size of the first file extent to be allocated to the file (the primary
extent). The value is an integer in the range 1 through 65535.
sec-extent-size
is the size of the extents allocated to the file after the primary extent is
allocated. The value is an integer in the range 1 through 65535.
exclusion-spec
is the exclusion mode for logical-unit . It determines the circumstances in
which other processes can access the file. The possible values for
exclusion-spec are:
EXCLUSIVE
SHARED
PROTECTED
EXCLUSIVE
means that no other processes can access actual-file-name while the
program containing logical-unit has the file open.
SHARED
means that other processes can both read from and write to actual-
file-name
while the program containing logical-unit has the file
open.
PROTECTED
means that another process can read, but not write to, actual-file-
name while the program containing logical-unit has the file open.
For more information about exclusion modes, see the Enscribe Programmer's
Guide .
access-spec
is the access mode for logical-unit . It specifies the type of file operations
that can be performed. The possible values for access-spec are :
I-O
INPUT
OUTPUT