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03-31-2017 09:42 AM
03-31-2017 09:42 AM
3PAR StoreServer 7000
I have a 3PAR that has been configured incorrectly. There are four WWN's that dispaly when you do a showhost command. The problem that I have is 2 of the WWN"s are incorrect on each node. This is an active system so I am looking for a way to correct the situation with out having to take a down time to correct. Is there a way to do this?
Current 3PAR ShowHost command - Incorrect Layout
0 EVANAA OpenVMS
50014380266713C4 1:1:1 - Path A - B Node
5001438026671244 1:1:1 - Path A - A Node
5001438026671244 0:1:1 - Path A - A Node
50014380266713C4 0:1:1 - Path A - B Node
1 EVANAB OpenVMS
50014380266713C6 1:1:2 - Path B - B Node
5001438026671246 1:1:2 - Path B - A Node
5001438026671246 0:1:2 - Path B - A Node
50014380266713C6 0:1:2 - Path B - B Node
__________________________________________________________________________________________
3PAR Correct Layout
Current 3PAR ShowHost command
0 EVANAA OpenVMS
5001438026671246 1:1:2 - Path B - A Node
5001438026671244 1:1:1 - Path A - A Node
5001438026671244 0:1:1 - Path A - A Node
5001438026671246 0:1:2 - Path B - A Node
1 EVANAB OpenVMS
50014380266713C4 0:1:1 - Path A - B Node
50014380266713C6 0:1:2 - Path B - B Node
50014380266713C4 1:1:1 - Path A - B Node
50014380266713C6 1:1:2 - Path B - B Node
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04-01-2017 08:32 PM
04-01-2017 08:32 PM
Re: 3PAR StoreServer 7000
A long time since I worked with VMS. Run show device dg /full to see the I/O paths to the devices. Once you see the paths for the devices, you can change the active path (if needed) with the set device device-name/switch/path=path-identifier command.
Remove the bad WWNs:
removehost -f EVANAA 50014380266713C4
removehost -f EVANAB 5001438026671246
I believe you will need to have both hosts run mc sysman io scsi_path_verify and mc sysman io auto/log to update their pathing. Run show device dg /full to see the I/O paths to the device. Verify the incorrect WWNs are gone.
Then put the WWNs where they belong:
addhost EVANAA 5001438026671246
addhost EVANAB 50014380266713C4
and run run mc sysman io scsi_path_verify and mc sysman io auto/log again. Finally show device dg /full one last time.
Note: While I am an HPE Employee, all of my comments (whether noted or not), are my own and are not any official representation of the company