How to Remove EMC Dead Paths on Solaris

We have already discussed on how to add an EMC storage to a Solaris box. Now we have a dead path on our system where the storage team has decommisioned. Here are the steps to follow on how to remove these dead paths from our system.

Check on your current paths

[email protected]# /etc/powermt display
Symmetrix logical device count=20
CLARiiON logical device count=50
==============================================================================
----- Host Bus Adapters ---------  ------ I/O Paths -----  ------ Stats ------
### HW Path                        Summary   Total   Dead  IO/Sec Q-IOs Errors
==============================================================================
2304 [email protected][email protected][email protected] optimal     121      1       -     0      0
2305 [email protected][email protected][email protected] optimal     120      0       -     0      0

Remove the dead paths

[email protected]# /etc/powermt check
Warning: CLARiiON device path c7t4d0s0 is currently dead.
Do you want to remove it (y/n/a/q)? y
[email protected]# /etc/powermt config
[email protected]# /etc/powermt save

Verify if the dead paths are removed

[email protected]# /etc/powermt display
Symmetrix logical device count=20
CLARiiON logical device count=50
==============================================================================
----- Host Bus Adapters ---------  ------ I/O Paths -----  ------ Stats ------
### HW Path                        Summary   Total   Dead  IO/Sec Q-IOs Errors
==============================================================================
2304 [email protected][email protected][email protected] optimal     120      0       -     0      0
2305 [email protected][email protected][email protected] optimal     120      0       -     0      0

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