from either direction, the broken loop does not prevent access to any data,
unless that data is on the failed disk drive module. If the loop is broken between
two disk drive modules, the ready lights on those modules flash to show that only
one SSA path is active. Also, the Link Verification service aid shows that only
one path is available to each disk drive module on the broken loop.
You can find the physical location of any disk drive module on the link by using
the identify function (see “The Identify Function” on page 7-31).
Notes:
a. In the lists of physical disk drives (pdisks) that are displayed by the service
aids, you might see:
?????
Question marks show where an SSA loop is broken. No informa-
tion is available about any devices that are beyond this point.
*****
Asterisks indicate an unconfigured device. That device might be:
Another SSA adapter that is in the same using system or in a
different using system.
An SSA device that is in the SSA network, but whose type is
not known. Such a condition can occur if, for example,
devices are added to the network, but the cfgmgr command
is not run to configure those devices into the using system.
For example:
┌──────────────────────────────────────────────────────────────────────────────────┐
│ LINK VERIFICATION
8ð2386 │
│
│
│ SSA Link Verification for:
│
│
ssa1
ðð-ð5
SSA ADAPTER
│
│
│
│ To set or reset Identify, move cursor onto selection, then press Enter.
│
│
│
│
Physical
Serial#
Adapter Port
│
│
│
│
A1 A2 B1 B2
Status
│
│
{TOP}
│
│
pdiskð
11111111
ð
Good
│
│
pdisk1
22222222
1
Good
│
│
?????
│
│
pdisk3
44444444
4
Good
│
│
pdisk4
55555555
3
Good
│
│
pdisk5
66666666
2
Good
│
│
pdisk6
77777777
1
Good
│
│
pdisk7
88888888
ð
Good
│
│
pdisk8
99999999
ð
3
Good
│
│
pdisk9
1ððððððð
1
2
Good
│
│
{MORE}
│
│
│
│ F3=Cancel
F1ð=Exit
│
│
│
└──────────────────────────────────────────────────────────────────────────────────┘
Note that the missing disk drive module (pdisk2) is represented by a line of
question marks.
7-40
RS/6000 Enterprise Server Model H Series User's Guide
Summary of Contents for H SERIES RS/6000
Page 1: ...RS 6000 Enterprise Server Model H Series IBM User s Guide SA38 0546 01...
Page 14: ...xiv RS 6000 Enterprise Server Model H Series User s Guide...
Page 16: ...xvi RS 6000 Enterprise Server Model H Series User s Guide...
Page 128: ...5 16 RS 6000 Enterprise Server Model H Series User s Guide...
Page 147: ...Chapter 6 Using the Online and Standalone Diagnostics 6 19...
Page 160: ...6 32 RS 6000 Enterprise Server Model H Series User s Guide...
Page 265: ...expect 8 r or 7 r or 6 r or 4 r or 3 r delay 2 done Appendix C Modem Configurations C 21...
Page 272: ...C 28 RS 6000 Enterprise Server Model H Series User s Guide...
Page 276: ...D 4 RS 6000 Enterprise Server Model H Series User s Guide...
Page 285: ...Index X 9...
Page 286: ...X 10 RS 6000 Enterprise Server Model H Series User s Guide...
Page 289: ......