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2
If you are upgrading from S7000 (NSR-W) to S7800 (NSR-J), you must
change the processor type entry in the CONFTEXT file ALLPROCESSORS
statement to NSR-J before you replace the PMF CRUs. You can specify only
one processor type. S7000 cannot be in a system with mixed processor
types.
After changing the CONFTEXT file, you must perform all required DSM/SCM
requests to create a new SYSnn. System load of the new SYSnn is required
after the new hardware is installed. Failure to change the processor type
causes an immediate %100441 halt when the new SYSnn is loaded. See the
appropriate G06.24 or later Release Version Update Compendium for
migration and fallback details.
3
MSEBs must be installed in slots 51 and 52 of all processor enclosures. The
inter-processor cables must be serial copper or fiber optic. SEBs or MSEBs
can be installed in slots 53 and 54 to connect I/O enclosures. SEBs and
IOMF CRUs have ECL ports. MSEBs and IOMF 2 CRUs can support ECL,
serial copper, or fiber optic cables, depending on which type of PIC is
installed.
Model 1952 IOMF CRUs can be connected to SEB ECL ports using
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standard density (SEB-to-SEB) cables.
Model 1952 IOMF CRUs can also be connected to an MSEB ECL PIC
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using the standard-to-high density (SEB-to-MSEB) cables. This is not
recommended for performance reasons. MSEBs and IOMF2s are
needed to take advantage of ServerNet 2.
Model 1980 IOMF2 CRUs and MSEBs support the same types of
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PICs, and can be connected using the corresponding ECL, serial
copper, or fiber optic cables. Serial copper or fiber optic are
recommended for performance reasons.
Slots 53 and 54 of processor enclosures 05 - 08 are not used for
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connections to I/O enclosures and can contain any supported
ServerNet adapter.
In a two processor system, any supported ServerNet adapter can be
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installed in slots 51 and 52. These slots are not used for expansion
beyond two processors.
See NonStop S-Series Topologies>Tetra-8 Topology Diagram and Tetra-16
Topology Diagram. Within these topics, see:
X-Fabric Cabling Diagram
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Y-Fabric Cabling Diagram
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If you are installing MSEBs and replacing the interconnecting ECL cables
with serial copper or fiber-optic cables, you can perform these upgrades
either offline or online on one fabric at a time. OSM or TSM server product
version T7945ABB (from G06.16) and TSM client 2002B T8154ABB are
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