HP NonStop NS manual Adapters and Modules, Fibre Channel ServerNet Adapter Fcsa

I/O Adapters and Modules: Monitoring and Recovery 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

HP Integrity NonStop NS-Series Operations Guide—529869-005

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