Hello guys,
I am trying to modify /etc/multipath.conf on my system so that the
parameter 'dev_loss_tmo' is changed from the default value.
My multipath.conf file contains the following:
defaults {
verbosity 2
polling_interval 5
max_polling_interval 10
multipath_dir "/lib64/multipath"
path_selector "round-robin 0"
path_grouping_policy "failover"
uid_attribute "ID_SERIAL"
prio "const"
prio_args ""
features "0"
path_checker "directio"
alias_prefix "mpath"
failback "manual"
rr_min_io 1000
rr_min_io_rq 1
max_fds "max"
rr_weight "uniform"
no_path_retry "fail"
queue_without_daemon "no"
checker_timeout 15
flush_on_last_del "no"
user_friendly_names "yes"
fast_io_fail_tmo 5
dev_loss_tmo 10
bindings_file "/etc/multipath/bindings"
wwids_file /etc/multipath/wwids
log_checker_err always
retain_attached_hw_handler no
detect_prio no
}
However, when checking the value currently in use I am getting the
wrong value (which is '30') for some of the remote ports:
for f in /sys/class/fc_remote_ports/rport-*/dev_loss_tmo; do
d=$(dirname $f); echo $(basename $d):$(cat $d/node_name):$(cat $f);
done
rport-3:0-0:0x5742b0f00007c500:10
rport-3:0-1:0x5742b0f00007c500:10
rport-3:0-2:0x5742b0f00007c500:10
rport-3:0-3:0x5000097408369800:30
rport-3:0-4:0x500009757804cbff:30
rport-4:0-0:0x5742b0f00007c500:10
rport-4:0-1:0x5742b0f00007c500:10
rport-4:0-2:0x5000097408369800:30
rport-4:0-3:0x5742b0f00007c500:10
rport-4:0-4:0x500009757804cbff:30
rport-5:0-0:0x5742b0f00007c500:10
rport-5:0-1:0x5742b0f00007c500:10
rport-5:0-2:0x5742b0f00007c500:10
rport-5:0-3:0x5000097408369800:30
rport-5:0-4:0x500009757804cbff:30
rport-6:0-0:0x5742b0f00007c500:10
rport-6:0-1:0x5742b0f00007c500:10
rport-6:0-2:0x5000097408369800:30
rport-6:0-3:0x5742b0f00007c500:10
rport-6:0-4:0x500009757804cbff:30
systool is giving me the same information:
systool -c fc_remote_ports -v | grep dev_loss_tmo
dev_loss_tmo = "10"
dev_loss_tmo = "10"
dev_loss_tmo = "10"
dev_loss_tmo = "10"
dev_loss_tmo = "10"
dev_loss_tmo = "10"
dev_loss_tmo = "10"
dev_loss_tmo = "10"
dev_loss_tmo = "10"
dev_loss_tmo = "30"
dev_loss_tmo = "10"
dev_loss_tmo = "30"
dev_loss_tmo = "30"
dev_loss_tmo = "10"
dev_loss_tmo = "30"
dev_loss_tmo = "10"
dev_loss_tmo = "30"
dev_loss_tmo = "30"
dev_loss_tmo = "30"
dev_loss_tmo = "30"
Where is this value coming from? May this be a bug? I couldn't find
anything useful on the Internet regarding this.
I am using the following versions:
rpm -qa multipath-tools
multipath-tools-0.4.9-109.1
uname -a
Linux mysystem 3.0.101-63-default #1 SMP Tue Jun 23 16:02:31 UTC 2015
(4b89d0c) x86_64 x86_64 x86_64 GNU/Linux
Thanks for your help!
Kind regards,
Bruno
--
dm-devel mailing list
dm-devel@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/dm-devel
