Hi Mike, I have found that at least with the EQL SANs, that setting RP filter is needed, but still have to set the interface files to create the session from each designated port. Otherwise when you look at the traffic it only comes from one port on the server.
Don On Tue, Jun 20, 2017 at 12:59 PM, Michael Eklund <[email protected]> wrote: > Don, > > That is not necessarily true. If rp_filter is set to 2 for each network > device on the same subnet, they can all be active at the same time. This is > even addressed in the open-iscsi documentation. > > Mike E. > > On Saturday, June 17, 2017 at 7:59:40 PM UTC-5, Donald Williams wrote: >> >> Hello, >> I read over that thread. Once thing missing from that discussion is >> how Linux routing works with multiple NICs on the same subnet. If you have >> two NICs IP'd on same IP subnet, only one NIC will be active. That becomes >> the default NIC for that subnet. Down that interface and the other will >> become active. That's the default behavior. That's why the -I interface >> option or creating interfaces files is needed, not just for offload >> cards. On iSCSI SANs like the Equallogic where all interfaces are on the >> same subnet, the iSCSI initiator must initiate iSCSI connections from each >> interface desired for iSCSI traffic. iSCSI SANs like the MD and CML can >> use different network subnets to get around how Linux networking works. >> >> Don >> >> >> >> >> On Fri, Jun 16, 2017 at 4:04 PM, <[email protected]> wrote: >> >>> I have been facing an issue with kubernetes implementation here is the >>> link if you care to look: >>> >>> https://github.com/kubernetes/kubernetes/issues/46041#issuec >>> omment-308762723 >>> >>> The question I have is why does open-iscsi behave differently when you >>> use the default interface in the first place? >>> >>> That is why does the behavior of these things differ: >>> >>> iscsiadm -m discovery -t st -p X.X.X.X >>> vs >>> iscsiadm -m discovery -t st -p X.X.X.X -I default >>> >>> and >>> >>> iscsiadm -m node -p XXXX -T iqn.2001-05.com.equallogic: >>> X-XXXXXX-XXXXXXXXX-XXXXXXXXXXXXXXXX-kubetesting --login >>> vs >>> iscsiadm -m node -p XXXX -T iqn.2001-05.com.equallogic: >>> X-XXXXXX-XXXXXXXXX-XXXXXXXXXXXXXXXX-kubetesting -I default --login >>> >>> Thanks, >>> >>> Mike E >>> >>> -- >>> 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 [email protected]. >>> To post to this group, send email to [email protected]. >>> Visit this group at https://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 [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://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 [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/open-iscsi. For more options, visit https://groups.google.com/d/optout.
