User guide

LSI Corporation
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Syncro CS 9286-8e Solution User Guide
March 2013
Chapter 5: Troubleshooting
Confirming SAS Connections
The returned information relating to the physical disk is as follows. Some of the other preceding text is removed for
brevity. The dual SAS addresses are listed at the end.
Physical Disk: 0
Enclosure Device ID: 65
Slot Number: 1
Drive's postion: DiskGroup: 0, Span: 0, Arm: 0
Enclosure position: 0
Device Id: 57
WWN: 5000C500178C4488
Sequence Number: 16
Media Error Count: 0
Other Error Count: 1961
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SAS
Raw Size: 68.366 GB [0x88bb998 Sectors]
Non Coerced Size: 67.866 GB [0x87bb998 Sectors]
Coerced Size: 67.843 GB [0x87b0000 Sectors]
Firmware state: Online, Spun Up
Device Firmware Level: 0005
Shield Counter: 0
Successful diagnostics completion on : N/A
SAS Address(0): 0x5000c500178c4489
SAS Address(1): 0x5000c500178c448a
5.2.4 Using MSM to Verify Dual-Ported SAS Addresses to Disk Drives
When the Syncro CS system is running, you can use MSM to verify the dual SAS paths to disk drives in the HA-DAS
configuration by following these steps:
1. Start MSM and access the Physical tab for the controller.
2. Click on a drive in the left panel to view the Properties tab for the drive.
3. Look at the SAS Address fields.
As shown in the following figure, a correctly configured and running HA-DAS cluster with both nodes active
displays dual SAS addresses on the drives and dual 4-lane SAS connections on the controller.