NonStop NS16000 Series Planning Guide (H06.11+)

MeaningStateLED
Power is in progress, board is being
reset, or a fault exists.
AmberLSU logic board PIC (amber LED)
Normal operation or powered off.Off
Processor Switch
The processor switch, or p-switch, provides the first level of ServerNet fabric interconnect for the
Integrity NonStop NS16000 series processors. ServerNet connection from the LSU also defines
the ID numbers, 0 through 15, for the logical processors within the system. In cases where NonStop
S-series I/O enclosures provide I/O capabilities and storage for the Integrity NonStop NS16000
series system, the ServerNet connection to the p-switch determines the NonStop S-series I/O
enclosure group number, as described in “NonStop S-Series I/O Enclosure Group Numbers”
(page 29).
Two p-switches are required, one each for the X and Y ServerNet fabrics. Physical attributes for
the 3U-high p-switch are:
• Rackmountable
• Dual AC power feeds and power supplies
• Dual fans with front to rear cooling
• Main logic board
• Maintenance entity (ME) logic and firmware
• Maintenance PIC (slot 1) for connection to maintenance switch
• Cluster PIC (slot 2) for connection to 6770 or 6780 cluster switch
• Crosslink PIC (slot 3) for connection to the other p-switch
• ServerNet I/O PICs (slots 4 to 9); provide 24 ServerNet 3 connections to one or more IOAMs,
one or more CLIMs, and to optional NonStop S-series I/O enclosures
• Processor I/O PICs (slots 10 to 13); connect to LSU for ServerNet 3 I/O with the processors
• Cable management and connectivity on the rear of the cabinet
CAUTION: To maintain proper cooling air flow, blank panels must be installed in all slots
that do not contain PICs.
P-switch FRUs include:
• ServerNet switch board
• Quad MMF PIC (up to 10) for processor connection to LSUs and I/O connections to CLIMs,
IOAM enclosures, NonStop S-series I/O enclosures, and ServerNet cluster switch (model
6780)
• SMF PIC for connection to ServerNet cluster switch (model 6770)
• Cross-link PIC for crossover connections between the two p-switches in the system
• Maintenance PIC for Ethernet connection to the maintenance switch and for system power-on
(SPON) connection to a NonStop S-series I/O enclosure
• Power supplies (2)
112 Modular System Hardware