Filter
Top Products
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 <Enter>.
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