On 9/12/19 12:48 PM, Laurence Oberman wrote:
My usual 3 month SRP test results show all is still well with SRP
client drivers and multipath.
I am still using 4.16 for the ib_srpt on the target server.
5.3-rc8 ib_srp CX4 100Gbit EDR tests
direct and unbuffered, large and small I/O sizes
port recovery with fault injection
One small observation was that after fault injection it seemed to take
longer to log back in, in that I needed to extend my sleep in the
injection script to avoid some multipaths lose all paths.
I was sleeping 30s between resets prior to this and I would log back in
quick enough to not lose all paths.
My sleep is now 60s
#on ibclient server in /sys/class/srp_remote_ports, using echo 1 >
delete for the particular port will simulate a port reset.
#/sys/class/srp_remote_ports
#[root@ibclient srp_remote_ports]# ls
#port-1:1 port-2:1
for d in /sys/class/srp_remote_ports/*
do
echo 1 > $d/delete
sleep 60
done
Hi Laurence,
This is weird. Has this behavior change been observed once or has it
been observed multiple times? I'm asking because in my tests I noticed
that there can be variation between tests depending on how much time the
SCSI error handler spends in its error recovery strategy.
Thanks,
Bart.
