Sun Microsystems StorEdge T3+, Руководство по обслуживанию

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Chapter 1 Troubleshooting Overview 1-3
A variety of software logging tools monitor the various branches of the storage
network. When an error is detected, the error’s severity level is categorized and
classified. Errors are reported or logged according to severity level (
TABLE 1-1
).
The syntax of the error message uses a field-replaceable unit (FRU) identifier to refer
to a particular FRU in a Sun StorEdge T3 and T3+ array (
TABLE 1-2
). This identifier
contains a unit constant (u), the unit number (n), the FRU constant (
ctr
for
controller card,
pcu
for power and cooling unit,
l
for unit interconnect card,
d
for
disk drive), and the FRU number (n).
TABLE 1-1
Levels of Message Notification
Message Level Description
Error Indicates a critical system or storage network event or
failure, requiring immediate intervention or attention
Warning
Indicates a possible system or storage network event or
failure, requiring eventual intervention
Notice Indicates a system event that could be a normal periodic
notification, a system fault, operator keyboard commands, or
a result of other events
Information Indicates a system event that has no impact upon the system
or storage networks ability to perform tasks.
TABLE 1-2
FRU Identifiers
FRU Identifier Unit number
Controller card
u n ctr
n = unit number (1, 2,...)
Power and cooling unit
u n pcu n
n = unit number (1, 2,...)
n = pcu number (1, 2)
Unit interconnect card
u
n
l
n n = unit number (1, 2,...)
n = interconnect number (1, 2)
Disk drive
u
n
d
n n = unit number (1, 2,...)
n = disk drive number (1 to 9)