From: Bruce Kirkland (Bruce_Kirkland@polk.com)
Date: Mon Oct 18 2004 - 16:04:04 EDT
I know you are not supposed to edit /etc/path_to_inst by hand. Having
said that I've found reasons to do so. Example1: when flashing new
firmware into an Emulex lp9002-dce you will probably end up with either
devices numbered wrong (i.e. lpfc0 is now lpfc4) and/or you will end up
with 2 sets of lpfc devices, none of which are any good to you.
Example2: you need to rebuild path_to_inst because you have too many
disk entries (around 32k max) when you are migrating from one storage
array to another. I dutifully remove old /dev/dsk, /dev/rdsk entries,
boot from cdrom, mv /etc/path_to_inst somewhere, devfsadm -r /mnt -p
/mnt/path_to_inst, boot and my qfe connections are not usable - not sure
why because basically it just changed the order of the qfe entries in my
path_to_inst.
So I personally feel justified but not very confident in editing
/etc/path_to_inst. I'm looking for better info on -> guidelines for
editing path_to_inst, helpful hints whatever ya got and/or -> a better
understanding of how it is used which might help me resolve these
problems. Sun keeps telling me to do the devfsadm procedure, just like
they always used to say boot -ar. I have not found either process very
reliable.
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