9-14 Sun StorEdge 3000 Family Installation, Operation, and Service Manual • May 2004
and Editing Configuration Parameters” chapter of the Sun StorEdge 3000 Family
RAID Firmware User’s Guide for cautions about particular parameter settings that
should be avoided. In particular, do not set the “Periodic SAF-TE and SES Device
Check Time” to less than one second, and do not set the “SCSI I/O Timeout” to
anything less than 15 seconds, and preferably no less than the Fibre Channel default
of 30 seconds.
9.9 Troubleshooting Flowcharts
This section provides troubleshooting flowcharts to illustrate common
troubleshooting methods.
The flowcharts included in this section are:
■ “Power Supply and Fan Module” on page 9-14
■ “Drive LEDs” on page 9-17
■ “Front Panel LEDs” on page 9-19
■ “I/O Controller Module” on page 9-24
For the JBOD and expansion unit flowchart, refer to “Troubleshooting Sun StorEdge
3510 FC JBOD Arrays” on page B-14.
For overview information about LEDs, see Chapter 7.
For information about replacing modules, refer to the Sun StorEdge 3000 Family FRU
Installation Guide.
Caution – Whenever you are troubleshooting and replacing components, there is an
increased possibility of data loss. To prevent any possible data loss, it is a good idea
to back up user data to another storage device prior to troubleshooting your array.
9.9.1 Power Supply and Fan Module
The following flowchart provides troubleshooting procedures for the power supply
and fan module.
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