Guardian Procedure Calls Reference Manual (G06.25+)

Guardian Procedure Calls (D-E)
Guardian Procedure Calls Reference Manual—522629-013
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DEVICE_GETINFOBYLDEV_ Procedure
(Superseded on G-series Releases)
•
mirror-subtype
is the device subtype of the mirror disk of a logical volume. This field is set only by
the disk process.
•
has-physical-devices
is equal to 1 unless the logical device does not own a channel address. $TMP, $0,
and $IPB are examples of logical devices that do not own channel addresses.
•
is-primary
identifies the current primary process of the IOP pair. This bit should be set to 1 in
only one of the physical information sets.
•
configured
is equal to 1 if the path is known to the device. Devices such as terminals and tape
drives have only one path configured; disks can have two or four paths configured.
•
in-use
is equal to 1 if the path is currently in use by the IOP that owns the device.
•
channel
is the channel number of the path. -1 is always returned on G-series releases,
indicating that this parameter value is not returned.
•
controller
is the controller number of the path. -1 is always returned on G-series releases,
indicating that this parameter value is not returned.
•
unit
is the unit number of the path. -1 is always returned on G-series releases,
indicating that this parameter value is not returned.