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Compex Systems Advanced SerialRAID Adapters SA33-3285-02 User Manual

Page 469

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6. (from step 5)

Observe the list of pdisks the screen. A row of question marks (?????) shows that a
link in one of the loops is broken. If two rows of question marks are displayed, two
links are broken, one in each loop. In the example shown here, pdisk2 is missing.

LINK VERIFICATION

802386

SSA Link Verification for:

nunu:ssa0

00-04

IBM SSA 160 SerialRAID Adapter (

To Set or Reset Identify, move cursor onto selection, then press .

Physical

Serial#

Adapter Port
A1 A2 B1 B2

Status

[TOP]

nunu:pdisk11

AC7AA09A

0

5

Good

nunu:pdisk8

AC7AA2D6

1

4

Good

????
nunu:pdisk3

AC7AA0B1

3

2

Good

nunu:pdisk7

AC7AA0B5

4

1

Good

nunu:pdisk12

AC7AA052

5

0

Good

nunu:pdisk0

AC7AA0B9

0

5

Good

nunu:pdisk1

AC7AA0B3

1

4

Good

nunu:pdisk10

AC7AA0B4

2

3

Good

[MORE...4]

F3=Cancel

F10=Exit

Is a link broken between two pdisks?

NO

No trouble found.

YES

a. Find the devices that are on each side of the broken link. The Identify

function, which is available on this display, helps you to find the
locations of pdisks. See “Finding the Physical Location of a Device” on
page 409
if you need more information about finding the disk drive.

b. Go to “SSA Link Errors” on page 478. The information that is provided

there can help you solve the problem. For information on how to
identify and exchange the FRU, see the service information for the
enclosure that contains the device.

Chapter 18. SSA Problem Determination Procedures

449