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11-30-2012 06:16 PM
11-30-2012 06:16 PM
I have an old 11iv1 server, with a VG made up of a bunch of disks, each with 4 paths - which are correctly showing in the VG as 1 defined primary path and 3 alternate "pvlinks".
Silly question, but if the primary were to fail and I/O was then to move to the first alternate link then (apart from looking in log files) how could I determine which one of the actual paths was actually in use at any given time?
I dont think the output of vgdisplay changes if a primary path were to fail over (i.e. vgdisplay still shows the primary path first and then alternate links)...what I'm looking for is a "what pvlink is *currently* in use" command!
Any input welcome...
Solved! Go to Solution.
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12-01-2012 11:01 AM
12-01-2012 11:01 AM
Re: How to determine the actual path/PVLink in use at a given moment....
The vgdisplay commend shows you the order of path, the first alternate will be used if the primary fails. You will find a related message in syslog about a failed path, the device will be shown as unavailable in vgdisplay.
Hope this helps!
Regards
Torsten.
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12-02-2012 08:58 AM