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Esxi 5.1 - SAN Active Paths

Posted on 2014-01-10
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Last Modified: 2014-01-10
In ESXI 5.1 which we have connected to an IBM XIV, I see all paths listed as active but some have active (I/O) and some just have it listed as active?

Is it that the paths marked as active(I/O) are the ones with actual date flowing through them and the others are standby?
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Question by:compdigit44
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Andrew Hancock (VMware vExpert / EE MVE^2) earned 500 total points
ID: 39771364
Active (I/O) data is flowing, and an iSCSI connection has been made, and multi-pathing is working.

e.g. with two paths, concurrently.

Active is waiting to be used, e.g. standby.

We have seen the above issue, when the in-correct Path Selection module or plugin is used for the SAN.

Check with vendor which is supported.

e.g Round Robin or Fixed, some SAN vendors do have a Path Selection Module which needs to be imported/added.

You can test this, by selecting a Path and Selecting Disable - BUT please be cautious and use on a test LUN, with no VMs to prevent any outage.

(can also depends if storage is setup correctly).
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by:compdigit44
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Thanks Hancock!!!!

You truely are the Vmware master...
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thanks for your kind words!
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