The SSA links must be configured as loops. The loop is connected to the internal
connectors at the SSA adapter card. These connectors
must be a valid pair (that is,
A1 and A2, or B1 and B2); otherwise, the disk drive modules on the loop are not fully
configured, and the diagnostics fail. Operations to all the disk drive modules on a
particular loop can continue if that loop breaks at any one point.
Each pair of connectors has a green light that indicates the operational status of its
related loop:
Disk Drive Module Strings
In the system unit, the disk drive modules are arranged in a string of 2 to 6 disk drive
modules. This string has its own two SSA connectors. This string is connected
through an internal SSA cable to a pair of connectors on the SSA adapter to make
an SSA loop. (The SSA cables provide the SSA links.)
Figure 3-2 shows the relationships between the SSA connectors and the disk drive
module string in a system unit.
Figure
3-2. A String of Disk Drive Modules
Status of Light
Meaning
Off
Both SSA connectors are inactive. If disk drive modules are connected to
these connectors, either those modules are failing, or their SSA links have not
been enabled.
Permanently on
Both SSA links are active (normal operating condition).
Slow Flash
Only one SSA link is active.
3-60
Service Guide
Содержание RS6000 - 7026 - H70
Страница 1: ...RS 6000 7025 F50 Series IBM Service Guide SA38 0541 01...
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Страница 14: ...xiv Service Guide...
Страница 16: ...xvi Service Guide...
Страница 18: ...Rear View 1 2 Service Guide...
Страница 23: ...Operator Panel Chapter 1 Reference Information 1 7...
Страница 24: ...System Data Flow 1 8 Service Guide...
Страница 120: ...AIX and Physical Location Code Reference Table 3 48 Service Guide...
Страница 121: ...Chapter 3 Error Code to FRU Index 3 49...
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Страница 211: ...Covers Removal 1 Open the door Chapter 6 Removal and Replacement Procedures 6 3...
Страница 217: ...b Remove the I O planar cover Chapter 6 Removal and Replacement Procedures 6 9...
Страница 222: ...5 Close the door 6 14 Service Guide...
Страница 231: ...4 Remove the screw holding the adapter Chapter 6 Removal and Replacement Procedures 6 23...
Страница 240: ...4 Remove the Processor card s as described in Processor Card on page 6 35 6 32 Service Guide...
Страница 247: ...Chapter 6 Removal and Replacement Procedures 6 39...
Страница 251: ...Replacement Replace in reverse order Chapter 6 Removal and Replacement Procedures 6 43...
Страница 255: ...Chapter 7 Parts Information Chapter 7 Parts Information 7 1...
Страница 256: ...7 2 Service Guide...
Страница 258: ...Note See IBM RS 6000 Diagnostic Information for Multiple Bus Systems for part numbers 7 4 Service Guide...
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Страница 318: ...C 4 Service Guide...
Страница 333: ...expect 8 r or 7 r or 6 r or 4 r or 3 r delay 2 done Appendix D Modem Configurations D 15...
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Страница 353: ...VPD vital product data 3 93 Index X 9...
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