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IBM z13s User Manual

IBM z13s
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44 IBM z13s Technical Guide
If STP uses an NTP server without PPS, a time accuracy of 100 ms to the ETS is maintained.
Although not part of the CPC drawer design, the OSCs cards are located beside the drawers,
and are connected to the same backplane to which the drawers are connected. Both drawers
connect to the OSC.
Figure 2-9 shows the location of the two OSC cards with BNC connectors for PPS on the
CPC, which is beside the drawer 1 and drawer 0 locations.
Figure 2-9 Oscillators cards
2.2.3 System control
Various system elements are managed through the flexible service processors (FSPs). An
FSP is based on the IBM PowerPC® microprocessor technology. Each FSP card has two
ports that connect to two internal Ethernet LANs, through system control hubs (SCH1 and
SCH2). The FSPs communicate with the SEs and provide a subsystem interface (SSI) for
controlling components.
Tip: STP is available as FC 1021. It is implemented in the Licensed Internal Code (LIC),
and allows multiple servers to maintain time synchronization with each other and
synchronization to an ETS. For more information, see the following publications:
򐂰 Server Time Protocol Planning Guide, SG24-7280
򐂰 Server Time Protocol Implementation Guide, SG24-7281
򐂰 Server Time Protocol Recovery Guide, SG24-7380

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IBM z13s Specifications

General IconGeneral
BrandIBM
Modelz13s
CategoryServer
LanguageEnglish

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