Example: Using SAS fabric path information
This data becomes helpful in determining the cause of configuration or SAS fabric problems.
The following example assumes a cascaded disk enclosure with a broken connection on one path between the cascaded enclosures.
The state of all paths to
all devices displays information similar to the following.
+--------------------------------------------------------------------------------+
| Show SAS Controller Physical Resources |
| |
|Move cursor to desired item and press Enter. |
| |
| Show Physical Resource Locations |
| Show Physical Resource Information |
| Show Fabric Path Graphical View |
| Show Fabric Path Data View |
| +--------------------------------------------------------------------------+ |
| | Show SAS Controller Physical Resources | |
| | | |
| | Move cursor to desired item and press Enter. | |
| | | |
| | pdisk0 Path 1: Operational Path 2: Operational | |
| | pdisk1 Path 1: Operational Path 2: Operational | |
| | pdisk2 Path 1: Operational Path 2: Operational | |
| | pdisk3 Path 1: Operational Path 2: Operational | |
| | pdisk4 Path 1: Operational Path 2: Operational | |
| | pdisk5 Path 1: Operational Path 2: Operational | |
| | pdisk6 Path 1: Operational Path 2: Operational | |
| | pdisk7 Path 1: Operational Path 2: Operational | |
| | pdisk8 Path 1: Operational Path 2: Operational | |
| | pdisk9 Path 1: Failed Path 2: Operational | |
| | pdisk10 Path 1: Failed Path 2: Operational | |
| | pdisk11 Path 1: Failed Path 2: Operational | |
| | pdisk12 Path 1: Failed Path 2: Operational | |
| | pdisk13 Path 1: Failed Path 2: Operational | |
| | pdisk14 Path 1: Failed Path 2: Operational | |
| | pdisk15 Path 1: Failed Path 2: Operational | |
| | pdisk16 Path 1: Failed Path 2: Operational | |
| | ses0 Path 1: Operational | |
| | ses1 Path 1: Operational | |
| | ses2 Path 1: Operational | |
| | ses3 Path 1: Operational | |
| | ses4 Path 1: Operational | |
| | | |
| | F1=Help F2=Refresh F3=Cancel | |
| | F8=Image F10=Exit Enter=Do | |
| | /=Find n=Find Next | |
| +--------------------------------------------------------------------------+ |
+--------------------------------------------------------------------------------+For Show Fabric Path Data View, choosing
one of the devices with a Failed path will display information
similar to the following.
+--------------------------------------------------------------------------------+
| COMMAND STATUS |
| |
|Command: OK stdout: yes stderr: no |
| |
|Before command completion, additional instructions might appear below. |
| |
| |
| |
|Adapter Adapter Port Path Active Path State Device |
|--------- ------------ ----------- ----------- -------- |
|sissas0 4 No Failed pdisk9 |
| |
|Node SAS Address Port Type Phy Status Info |
|---- ---------------- ------------ ---- ---------------- ----------- |
|1 5005076C0701CD05 Adapter 4 Operational 3.0 GBPS |
|2 500A0B8257CC9000 Expander 16 Operational 3.0 GBPS |
|3 0000000000000000 Expander FF Missing Status 0 |
|4 5000CCA003100DF3 LUN 40 Missing Status 0 |
| |
| |
|Adapter Adapter Port Path Active Path State Device |
|--------- ------------ ----------- ----------- -------- |
|sissas0 6 Yes Operational pdisk9 |
| |
|Node SAS Address Port Type Phy Status Info |
|---- ---------------- ------------ ---- ---------------- ----------- |
|1 5005076C0701CD07 Adapter 6 Operational 3.0 GBPS |
|2 500A0B8257CEA000 Expander 16 Operational 3.0 GBPS |
|3 500A0B8257CEA000 Expander 10 Operational 3.0 GBPS |
|4 500A0B81E18E7000 Expander 10 Operational 3.0 GBPS |
|5 500A0B81E18E7000 Expander 0 Operational 3.0 GBPS |
|6 5000CCA003900DF3 Device 1 Operational 3.0 GBPS |
|7 5000CCA003100DF3 LUN 40 Operational LUN_ID 000 |
+--------------------------------------------------------------------------------+For Show Fabric Path Graphical View,
choosing one of the devices with a Failed path will display
information similar to the following.
+--------------------------------------------------------------------------------+
| COMMAND STATUS |
| |
| Command: OK stdout: yes stderr: no |
| |
| Before command completion, additional instructions might appear below. |
| *********************************************************************** |
| Path(s) from sissas0 to the pdisk9. |
| *********************************************************************** |
| +---------------------------------------------------------------------+ |
| |Path Active: No Adapter Path Active: Yes | |
| |Path State : Failed sissas0 Path State : Operational | |
| +---------------------------+-------------+---------------------------+ |
| |SAS Addr: 5005076C0701CD05 | |SAS Addr: 5005076C0701CD07 | |
| |Port : 4 | |Port : 6 | |
| |Status : Operational | |Status : Operational | |
| |Info : 3.0 GBPS | |Info : 3.0 GBPS | |
| +---------------------------+ +---------------------------+ |
| || || |
| \/ \/ |
| +---------------------------+ +---------------------------+ |
| | Expander : 1 | | Expander : 1 | |
| +---------------------------+ +---------------------------+ |
| |SAS Addr: 500A0B8257CC9000 | |SAS Addr: 500A0B8257CEA000 | |
| |Port : 16 | |Port : 16 | |
| |Status : Operational | |Status : Operational | |
| |Info : 3.0 GBPS | |Info : 3.0 GBPS | |
| +---------------------------+ +---------------------------+ |
| |SAS Addr: 0000000000000000 | |SAS Addr: 500A0B8257CEA000 | |
| |Port : FF | |Port : 10 | |
| |Status : Missing | |Status : Operational | |
| |Info : Status 0 | |Info : 3.0 GBPS | |
| +---------------------------+ +---------------------------+ |
| || || |
| || \/ |
| || +---------------------------+ |
| || | Expander : 2 | |
| || +---------------------------+ |
| || |SAS Addr: 500A0B81E18E7000 | |
| || |Port : 10 | |
| || |Status : Operational | |
| || |Info : 3.0 GBPS | |
| || +---------------------------+ |
| || |SAS Addr: 500A0B81E18E7000 | |
| || |Port : 0 | |
| || |Status : Operational | |
| || |Info : 3.0 GBPS | |
| || +---------------------------+ |
| || || |
| || \/ |
| || +---------------------------+ |
| || | Device | |
| || +---------------------------+ |
| || |SAS Addr: 5000CCA003900DF3 | |
| || |Port : 1 | |
| || |Status : Operational | |
| \/ |Info : 3.0 GBPS | |
| +---------------------------+-------------+---------------------------+ |
| |SAS Addr: 5000CCA003100DF3 | Device Lun |SAS Addr: 5000CCA003100DF3 | |
| |Status : Missing | pdisk9 |Status : Operational | |
| |Info : LUN_ID 000 | |Info : LUN_ID 000 | |
| +---------------------------+-------------+---------------------------+ |
+--------------------------------------------------------------------------------+