MF Digital DIRECTOR Series (Rev: 06/01/02) - Manual (Page 36)

DIRECTOR Series Operator’s Guide Document Revision: 0802
Page 35
The modes of operation are:
Mode Description
Disabled
Jobs=Synchronous (FIFO), Drives=Synchronous
When the setting is “disabled”, jobs are processed on a first in/first out
(FIFO) basis such that they will be kept together when placed on the
output spindle. For example, let us say two jobs of one piece each are
submitted. Job 1 is a 650 MB disc and Job 2 is a 10 MB disc. Even
though Job 2 was submitted last, it will completed before Job 1 but it will
NOT be outputted to the accept spindle until Job 1 is done.
Level 0
Jobs=Asynchronous, Drives=Synchronous (Default)
When the setting is “level 0” jobs are still started on a first in / first out
basis, but completed jobs will be outputted when they are done and
therefore discs will be mixed together on the output spindle. For
example, let us say two jobs of two pieces each are submitted. Job 1 is a
650 MB disc and Job 2 is a 10 MB disc. Even though Job 2 was
submitted last, it will completed before Job 1 but unlike the DIASBLED
mode, it will not be held but rather immediately outputted to the accept
spindle when it is done. In processing the respective jobs, the two drives
in use for each job will function in tandem such that they will not begin
to write until both drives have become ready.
Level 1*
Jobs=Synchronous (FIFO), Drives=Asynchronous
When the setting is “Level 1”, jobs are processed on a first in/first out
(FIFO) basis such that they will be kept together when placed on the
output spindle. For example, let us say two jobs of two pieces each are
submitted. Job 1 is a 650 MB disc and Job 2 is a 10 MB disc. Even
though Job 2 was submitted last, it will completed before Job 1 but it will
NOT be outputted to the accept spindle until Job 1 is done. In processing
the respective jobs, the two drives in use for each job will function
independently of one another and begin to write as soon as they become
ready.
Level 2*
Jobs=Asynchronous (FIFO), Drives=Asynchronous
When the setting is “level 2” jobs are still started on a first in / first out
basis but completed jobs will be outputted when they are done. For
example, let us say two jobs of two pieces each are submitted. Job 1 is a
650 MB disc and Job 2 is a 10 MB disc. Even though Job 2 was
submitted last, it will completed before Job 1 but unlike the DIASBLED
mode, it will not be held but rather immediately outputted to the accept
spindle when it is done. In processing the respective jobs, the two drives
in use for each job will function independently of one another and begin
to write as soon as they become ready. In this mode, disc placement on
output spindle will be scattered.