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DeaconZ28-2015

252 Posts

6798

July 21st, 2008 12:00

Degraded paths suddenly appearing

Hi, I have a new CX3-40 array and on one of my servers (a relatively new one) it is showing paths degrading.

None of my other servers are having problems, and the array is fine, but Powerpath is showing a lot of paths degraded.

Any thoughts?

RRR

2 Intern

 • 

5.7K Posts

July 22nd, 2008 00:00

Do you see double LUN's ? When a Windows machine reboots it happens (a lot) that the disk id changes, so PPath picks this up as a dead path on 1 HBA and if the other path is still ok, as a degraded LUN. If a LUN can be seen double on an HBA, remove the dead one.

SKT2

2 Intern

 • 

1.3K Posts

July 21st, 2008 18:00

post "powermt display or powermt display paths"

dynamox

9 Legend

 • 

20.4K Posts

July 21st, 2008 19:00

what OS? Have you checked HBAs/cables/ports on the switch ?

bencrookEMC

30 Posts

July 22nd, 2008 09:00

don't really have enough information from you regarding the problem. might be a good idea to check you hba, cable, and switch port. make sure you are getting event id 128's those would indicate connectivity issues.

DeaconZ28-2015

252 Posts

July 30th, 2008 06:00

Apparently even though the Clariion was persistently bound in Sansurfer, Windows still saw it as a different path after reboot.

I reinstalled PP and its fine now.

Sam Claret

86 Posts

August 18th, 2008 14:00

You said "Windows still saw it as a different path after reboot."
Sounds Like you may have had a file called powermt.custom with old info in it
All you needed to do was delete the file and reboot.....and do not issue a powermt save.

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