OCUM 7.2 P1 reports unused ATTO SAS-Ports as "Critical Incident".

[thokelly]

Hello,

OCUM 7.2 P1 reports unused ATTO SAS Port as "Critical Incident".

We have a cDOT MetroCluster with ATTO7500 (4 Stacks/4 SAS-Ports).

Two are in use (1,2 or A,B), two are unused (3,4 or C,D).

Every couple of minutes, OCUM reports the unused SAS-Ports as "offline

Summary


Severity: Critical

State: New

Impact Level: Incident

Impact Area: Availability











 





























Source:




ATTO_10.100.30.203:5













































Source Type: MetroCluster Bridge Stack Connection
 
 

Acknowledged By:

Resolved By:

Assigned To:



Triggered Time: 3 Mins Ago


Trigger Condition:   Link ATTO_x.x.x.x to storage stack 5 is down. The Ids of the affected shelves are 12,14,13.

[niels · Accepted solution]

Hi,

this is works as designed and actually not an OCUM issue.

OCUM is just visualizing what the built-in health monitor of ONTAP is reporting.

You will see the same error on ONTAP CLI or System Manager as the system cannot distinguish between a port being unused intentially and a faulty port, e.g. due to a broken cable.

If those ports are indeed not used, they have to be explicitely disabled as described in the Fabric MetroCluster Installation and Configuration Guide - page 148:

https://library.netapp.com/ecm/ecm_download_file/ECMLP2494091

Disable any unused SAS ports:

SASPortDisable <sas port>

Note:If you are configuring an ATTO 7500N bridge then all the SAS ports A through D

are enabled by default. You must disable the SAS ports that are not being used.

regards, Niels

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If this post resolved your issue, please help others by selecting ACCEPT AS SOLUTION or adding a KUDO or both.

[MartijnMoretDMP]

Yep, just disable the ports and the next check, the error is gone!

Regards,

Martijn

[thokelly]

Martijn,

I had the SAS ports disabled, but the errors kept popping up.

You have to disable the SAS Ports AND do a "SaveConfiguration Restart" on every ATTO to get rid of these errors.

Thx.

/Tom

[thokelly]

Niels,

I had the ports disabled, but without the restart.

"SaveCondiguration Restart" did the job!

Thx!

Regards,

Tom

[niels]

Hence I posted the link to the configuration guide and the relevant page.

The paragraph just below the one I quoted in my post reads:

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Save the bridge's configuration.

Example

If using the CLI, issue the following command:

SaveConfiguration Restart

You are prompted to restart the bridge.

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Sorry for causing confusion by just posting the part to disable the ports.

regards, Niels