zpool and power path partial compatibility

Is power path fully supported with zpools, no. It's partial. You can have the pseudo devices assigned to a pool but it uses the native ctd disk only.

Recently I lost 2 paths from the vnx array to m9000 server running Solaris 11.1. When I ran the zpool status -x command some of the pools were online while some of them were un available. Power path was reporting 2 paths only but it was active. So ideally the zpools should be online. But it's not.

I enabled the remaining 2 paths and all became online.

Internally the pools were pointing to one of the ctd devices that belonged to dead path and it was not coming online. Also few of the emcpower devices were renamed, so I had to do zpool import -d with the alternate disk.

It seems power path is not completely supported now but may become in future.

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  1. UnknownApril 26, 2014 at 12:09 PM

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