On 01/25/2016 07:47 PM, Raymond Higgs wrote: > Zfcp_san_disc, and many other tools typically only display what Linux > already knows about. If you start with the device offline, then it'll > bring the device online and show you what is currently in the fabric. If > you start with the device online, then it shows what is in /sys and that's > it. It doesn't try to update anything.
I didn't know this. Great to know. > Each device has a file that can be used to rediscover changes in the > fabric: > > echo 1 > /sys/bus/ccw/drivers/zfcp/<bus_id>/port_rescan > > This is nondisruptive. You don't have to toggle the device off and on. Got it. Will do from now on. > I don't have access to an SP4 system at the moment to see if any of the > tools use port_rescan. I checked all of them (zfcp_* & rescan-scsi.bush.sh) since they're all shell scripts and none of them have the keyword "port_rescan" within them. I guess doing the "echo 1 > ..." is the way to go to grab changes in the fabric. Thanks Ray for your time & the very informative reply! Best regards, Jorge ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
