Filter
Top Products
I/O Adapters and Modules: Monitoring and Recovery
HP Integrity NonStop NS-Series Operations Guide—529869-005
8-2
I/O Adapters and Modules
I/O Adapters and Modules
Beginning with Integrity NonStop systems, interprocessor communications and I/O use
dual ServerNet fabrics as a common interconnect means. Input/output components
usually connect to the ServerNet fabrics through ServerNet adapters that are in an I/O
adapter module (IOAM) enclosure. These adapters provide the system I/O to Fibre
Channel storage devices and gigabyte Ethernet communications networks.
Connections to the ServerNet fabric through a NonStop S-series I/O enclosure
equipped with IOMF2s provide additional ServerNet interfacing for the Integrity
NonStop I/O peripherals.
Even though the hardware architecture differs from one series of NonStop servers to
another, the Integrity NonStop system can be networked with other NonStop systems
using the same message system and the same network software.
Fibre Channel ServerNet Adapter (FCSA
The FCSA provides Fibre Channel connectivity to certain external devices such as disk
drives contained in a disk drive enclosure that supports fibre channel disks and an
Enterprise Storage System (ESS).
Any connection between an Integrity NonStop system and a disk drive enclosure
containing M8xxx fibre channel disks requires the services of two processes: the Fibre
Channel Storage (FCS) Manager, which is part of the Storage Manager ($ZZSTO),
and the FCS Monitor $FCSMON), a persistent generic process that runs in all
processors. An FCS Monitor process must be running in all processors. Each of the
two SACs on an FCSA can support as many as four disk drive enclosures, for a total of
eight per FCSA. The FCS Manager process assigns a SAC on an FCSA to a particular
instance of the FCS Monitor.
Up to 10 FCSAs can be housed in an I/O adapter module (IOAM), which is mounted in
an IOAM enclosure (except in Integrity NonStop NS14000 and NS1000 systems,
where slot 1 is reserved for a 4-Port ServerNet Extender (4PSE)). The form factor and
connection technology of IOAM enclosures differ from the standard I/O enclosures that
provide direct ServerNet access to external I/O devices. A pair of ServerNet switch
boards, also located in the IOAM enclosure, provide connectivity between the
processors and the FCSAs. All IOAM hardware can be monitored by OSM.
For information about the disk drives or tape drives supported through FCSAs for your
H-series RVU, refer to the H06.nn Release Version Update.
Gigabit Ethernet 4-Port Adapter (G4SA)
The M8800 Gigabit Ethernet 4-port ServerNet adapter (G4SA) provides Gigabit
connectivity between Integrity NonStop systems and Ethernet LANs. G4SAs are
installed in slots 1 through 5 of an I/O adapter module (IOAM) (except in Integrity
NonStop NS14000 and NS1000 systems, where slot 1 is reserved for a 4-Port
ServerNet Extender (4PSE)). There are two IOAMs in an IOAM enclosure, so a total of
10 G4SAs can be installed in an enclosure. Although the G4SA supersedes the