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4 Posts
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11836
September 16th, 2011 10:00
Errors in VMware ESXi 4.1U1 connected to EQL array via PC8024 switches
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".
[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".
No Events found!
aydeisen
4 Posts
0
September 16th, 2011 10:00
hi, I was wondering if anyone tested the failover of the SAN switch in the EQL SAN environment.
I have 2 Dell 8024F switches and when simulate a fail (unplug one switch), then I lose the connection to the datastores in the SAN, approx half of the VMs become unreachable. The switches are LAGed together and with the Cisco core 6509 switch.
Please let me know if anyone is familiar with the situation and if have any solution.
Thanks,
MichaelDavis
77 Posts
0
September 16th, 2011 15:00
Are your vmk adapters bound to separate physical adapters which are then connected one each to your 8024Fs? I haven't tested a failure of our iSCSI switches but have experienced the real thing too many times and haven't had any VMs become unreachable.
Check and make sure that you have multiple independent connections between the ESXi hosts, the switches and the arrays; sounds like there is a single path somewhere in the chain.