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Promise Technology 2-Year Extended Warranty for VessR2000 RAID Head User Manual

Page 667

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640

Vess

R2000

Series

Product

Manual

Promise

Technologies

Faulty Cable

To check for a faulty SAS cable:

1. Power down the RAID subsystem and JBOD units.

2. Replace the SAS cable with a new one.

3. Power up the subsystems and monitor the link port counter for changes in the rate of link error

accumulation.

Faulty Controller or I/O Module Connector

To check for a bad controller or I/O module SAS connector:

1. With the subsystems online and I/Os running, access the CLI via serial or Telnet.

See “Initial Connection” on page 206.

2. At the command prompt, type the following command and press

Enter

.

administrator@cli> sasdiag -a errorlog -l expander -e 1 -i 1

3. At the command prompt, type the following command and press

Enter

.

administrator@cli> sasdiag -a errorlog -l c2cport

By interpreting the two error logs, you can verify which controller or I/O module SAS port is accumulating link

errors.