Changing LUN pseudonames or Riding the LUN Merry-go-round

Let’s say you’ve got a situation in which a system’s LUN pseudonames aren’t matching up. E.g.,

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| NODE1     | NODE2     |
|-----------|-----------|
| emcpowera | emcpowerb |
| emcpowerb | emcpowerd |
| emcpowerc | emcpowera |
| emcpowerd | emcpowerc |
| emcpowere | emcpowerg |
| emcpowerf | emcpowere |
| emcpowerg | emcpowerf |

And you REALLY need them to match between your nodes. Well, there’s an app…err…command for that!

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emcpadm –s <source lun> -t <target lun>

I’ve run into a couple of situations where I’ve really needed this, so here you go internet! May it be useful!

Cheers,

Aaron

Aaron Sachs

Aaron Sachs
Linux geek, small-time brewer, banjo player, and incessantly curious dude.

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