I am monitoring with netstat -a...looking at sendq and recvq there for the three iscsi/tcp sessions.
Also checked with tcpdump. Thanks! Sent from my iPhone On Aug 26, 2014, at 9:46 PM, "Michael Christie" <micha...@cs.wisc.edu> wrote: > > On Aug 26, 2014, at 6:49 PM, Michael Christie <micha...@cs.wisc.edu> wrote: > >> >> On Aug 26, 2014, at 3:11 PM, Learner <learner.st...@gmail.com> wrote: >> >>> Another related observation and some questions; >>> >>> I am using open iscsi on init with IET on trgt over a single 10gbps link >>> >>> There are three ip aliases on each side >>> >>> I have 3 ramdisks exported by IET to init >>> >>> I do iscsi login 3 times, once using each underlying ip address and notice >>> that each iscsi session sees all 3 disks. >>> >>> Is it possible to restrict such that each init only sees one separate disk? >>> >> >> There is no iscsi initiator or target setting for this. The default is to >> show all paths (each /dev/sdx is a path to the same device).. >> >> You would have to manually delete some paths by doing >> >> echo 1 > /sys/block/sdX/device/remove >> >>> When I run fio on each mounted disk, I see that only two underlying tcp >>> sessions are being used - that limits the perf. >>> Any ideas on how to overcome this? >> >> How are you matching sessions with devices? It should just be a matter of >> running fio on the right devices. If you run: >> >> iscsiadm -m session -P 3 >> >> you can see how the sdXs match up with sessions/connections. If you run fio >> to a /dev/sdX from each session, you should be seeing IO to all 3 sessions. >> > > How are you determining if a session is being used or not? Are you running > the iscsiadm -m session --stats command, watching with wireshark/tcpdump or > something else? > > If you have all three IPs on the same subnet, then it is going to be a little > more complicated than what I described above. > > -- > You received this message because you are subscribed to the Google Groups > "open-iscsi" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to open-iscsi+unsubscr...@googlegroups.com. > To post to this group, send email to firstname.lastname@example.org. > Visit this group at http://groups.google.com/group/open-iscsi. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To unsubscribe from this group and stop receiving emails from it, send an email to open-iscsi+unsubscr...@googlegroups.com. To post to this group, send email to email@example.com. Visit this group at http://groups.google.com/group/open-iscsi. For more options, visit https://groups.google.com/d/optout.