Low-level link – HP NonStop G-Series User Manual
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A printed wiring assembly (PWA) on which computer circuits (chips and wiring) are
mounted. One type of logic board is a
processor and memory board (PMB)
. Another type
multifunction I/O board (MFIOB)
.
logical device number
A number that identifies a particular I/O device in the system. Logical device numbers
are assigned to physical I/O devices.
logical interface (LIF)
A process that allows an application or another process to communicate with data
communications hardware.
logical name
of a resource that is either assigned to the I/O process associated with the
resource during configuration using the
Subsystem Control Facility (SCF)
represents the type of resource or its location.
When you are logged on to the OSM Service Connection, you can use the logical name to
locate a resource.
Examples:
$DATA04-P is the logical name of the disk CRU located in group 1, module 1, slot
13.
●
SCSI-3.GRP-1.MOD-1.SLOT-50 is the logical name of the third SCSI bus on the
IOMF2 CRU located in group 1, module 1, slot 50.
●
Switch_Y_Guid_VOPXKH is the logical name for a NonStop Cluster Switch on
the external Y fabric of a ServerNet cluster.
●
See also
Logical Unit Number (LUN)
A SCSI convention used to identify elements. The host sees a virtual disk as a LUN. The
LUN address a user assigns to a virtual disk for a particular host will be the LUN at
which that host will see the virtual disk.
low-level link (LLL)
A connection between the OSM client software running on a workstation and the
. When the operating system is not running,
communication must take place over a
. You can also communicate with a
server over a low-level link when the operating system is running. Certain tasks can be
performed only using a low-level link.
See also