due to a service action, such as hardware or software upgrades, these exceptions can be ignored
until that action has finished and the node is online.
In this example, LD 35, with a name of R1.usr.3, is owned (Own) by nodes 3/2/0/1, respectively,
and the primary/secondary physical paths to the drives (chunklets) in this LD are from nodes 3
and 2, respectively. However, the FC path (Port B) from node 3 to PD 91 is failed/missing, so
node 2 is performing the I/O to PD 91. When the path from node 3 to cage 3 gets fixed (N:S:P
3:0:4 in this example), this condition should disappear.
cli% showld
Id Name RAID -Detailed_State- Own SizeMB UsedMB Use Lgct LgId WThru MapV
35 R1.usr.3 1 normal 3/2/0/1 256 256 V 0 --- N Y
cli% showldch R1.usr.3
Ldch Row Set PdPos Pdid
Pdch State Usage Media Sp From To 0 0 0 2:2:3 63
0 normal ld valid N --- --- 1 0 0 3:8:3 91
0 normal ld valid N --- ---
cli% showpd 91 63
----Size(MB)---- ----Ports----
Id CagePos Type Speed(K) State Total Free A B
63 2:2:3 FC 10 normal 139520 124416 2:0:3* 3:0:3
91 3:8:3 FC 10 degraded 139520 124416 2:0:4* -----
cli% showpd -s -failed -degraded
Id CagePos Type -State-- ---------------Detailed_State----------
91 3:8:3 FC degraded missing_B_port,loop_failure
cli% showcage
Id Name LoopA Pos.A LoopB Pos.B Drives Temp RevA RevB Model Side
2 cage2 2:0:3 0 3:0:3 0 24 29-42 2.37 2.37 DC2 n/a
3 cage3 2:0:4 0 ----- 0 32 28-40 2.37 2.37 DC2 n/a
Normal condition (after fixing):
cli% showpd 91 63
----Size(MB)---- ----Ports----
Id CagePos Type Speed(K) State Total Free A B
63 2:2:3 FC 10 normal 139520 124416 2:0:3* 3:0:3
91 3:8:3 FC 10 normal 139520 124416 2:0:4 3:0:4*
port
Checks for the following port connection issues:
• Ports in unacceptable states
• Mismatches in type and mode, such as hosts connected to initiator ports, or host and Remote
Copy over Fibre Channel (RCFC) ports configured on the same FC adapter
• Degraded SFPs and those with low power; perform this check only if this FC Adapter type
uses SFPs
• Ports listed as hosts in "showhost" that are not ready or not configured as host
• Host ports or systesm with too many initiators connected
Format of Possible port Exception Messages
Port port:<nsp> "Port mode is in <mode> state"
Port port:<nsp> "is offline"
Port port:<nsp> "Mismatched mode and type"
Port port:<nsp> "Port is <state>"
Port port:<nsp> "SFP is missing"
Port port:<nsp> SFP is <state>" (degraded or failed)
Port port:<nsp> "SFP is disabled"
Port port:<nsp> "Receiver Power Low: Check FC Cable"
Troubleshooting Storage System Components 59
To Next Page
Loading...
