I want to configure multipath such that it ignores all the internal disks and only sees SAN Luns. Any idea how can I achieve that?
Basically I want to filter out all the internal disks like IDE, SAS backend etc except for SAN Luns.
-- Using find_multipaths is not an option for me as I want to use multipath even when single path to a SAN Lun is present.
-- Black listing based on device(vendor/model), wwid etc is also not an option as it is possible that I can have internal drive(s) as well as SAN LUN from the same vendor.
-- I tried black listing using properties but could not find any property that will distinguish between SAN Luns vs internal disks.
Any thoughts? I am new to the Linux internals.