User guide

LSI Corporation
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Syncro CS 9286-8e Solution User Guide
March 2013
Chapter 5: Troubleshooting
Confirming SAS Connections
Figure 40 Redundant SAS Data Paths Are Missing
The following figure shows the correct view with two drive SAS addresses.
Figure 41 Redundant SAS Data Paths Are Present
5.2.3 Using MegaCLI to Verify Dual-Ported SAS Addresses to Disk Drives
The MegaCLI configuration display command (-cfgdsply) returns many lines of information, including a summary
for each physical disk. To confirm the controller discovery of both SAS addresses for a single drive, examine the
MegaCLI configuration text for the drive information following the Physical Disk line. If only one of the drive’s SAS
ports was discovered, the second SAS address is listed as 0x0. If both drive SAS ports were discovered, the second
drive port SAS address is identical to the first except for the last hexadecimal digit, which always has a value of plus 1
or minus 1, relative to SAS Address(0).
The syntax of the MegaCLI command is as follows:
Megacli –cfgdsply –a0