VMware Cloud Community
Dan_Sin
Contributor
Contributor
‎09-16-2011 09:31 AM

VMware " path redundancy degraded" email alert

Having the problem with the alerts below being received multiple times a day since a new DELL EQL has been added in the SAN array 2 months ago. Had opened multiple support cases with Dell, unfortunately no luck in finding where teh problem is. Any help would be appreciated.

[VMware vCenter - Alarm Cannot connect to storage] Path redundancy to storage device naa.6090a07840b7631f2ce3d4ba2b01909e degraded. Path vmhba37:C4:T21:L0 is down. Affected datastores: "VMFS20-DataStore".

Target: hvir1.domain.org

Stateless event alarm

Alarm Definition:

([Event alarm expression: Lost Storage Connectivity] OR [Event alarm expression: Lost Storage Path Redundancy] OR [Event alarm expression: Degraded Storage Path Redundancy])

Event details:

Path redundancy to storage device naa.6090a07840b7631f2ce3d4ba2b01909e degraded. Path vmhba37:C4:T21:L0 is down. Affected datastores: "VMFS20-DataStore".

[VMware vCenter - Alarm Cannot connect to storage] Path redundancy to storage device naa.6090a07840b7c38200c6c4000000a008 degraded. Path vmhba37:C4:T14:L0 is down. Affected datastores: "SQL-DATA".

Target: hvir3.domain.org

Stateless event alarm

Alarm Definition:

([Event alarm expression: Lost Storage Connectivity] OR [Event alarm expression: Lost Storage Path Redundancy] OR [Event alarm expression: Degraded Storage Path Redundancy])

Event details:

Path redundancy to storage device naa.6090a07840b7c38200c6c4000000a008 degraded. Path vmhba37:C4:T14:L0 is down. Affected datastores: "SQL-DATA".

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3 Replies
eeg3
Commander
Commander
‎09-16-2011 09:40 AM

Note: This thread has been moved from the HA & FT community to the vSphere Storage community.

Blog: http://blog.eeg3.net
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tigerdeccan
Enthusiast
Enthusiast
‎06-26-2012 05:59 AM

does anyone have  ideas on this , Im getting similar issue

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BharatR
Hot Shot
Hot Shot
‎06-27-2012 04:55 AM

Hi,


The  situation indicates a single point of failure and poses a performance impact in  the virtual machines currently accessing the storage device.

The storage device reading  vmhba37:C4:T21:L0 in the  example contains several potential failure points:

  • vmhba37 - HBA (Host Bus  Adapter)
  • C4 - Channel
  • T21 - Target (Storage  processor port)
  • L0 -  LUN (Logical Unit  Number or Disk Unit)

To  determine the actual failure or to eliminate possible issues,Here is the article.

http://kb.vmware.com/kb/1009555


Best regards, BharatR--VCP4-Certification #: 79230, If you find this information useful, please award points for "correct" or "helpful".
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