Re: Subnets. Not all iSCSI targets operate on multiple subnets. The Equallogic for example is intended for a single IP subnet schema., Multiple subnet require routing be enabled.
Don On Tue, Jun 30, 2020 at 1:02 PM The Lee-Man <[email protected]> wrote: > On Tuesday, June 30, 2020 at 8:55:13 AM UTC-7, Donald Williams wrote: >> >> Hello, >> >> Assuming that devmapper is running and MPIO properly configured you want >> to connect to the same volume/target from different interfaces. >> >> However in your case you aren't specifying the same interface. "default" >> but they are on the same subnet. Which typically will only use the default >> NIC for that subnet. >> > > Yes, generally best practices require that each component of your two > paths between initiator and target are redundant. This means that, in the > case of networking, you want to be on different subnets, served by > different switches. You also want two different NICs on your initiator, if > possible, although many times they are on the same card. But, obviously, > some points are not redundant (like your initiator or target). > >> >> What iSCSI target are you using? >> >> Regards, >> Don >> >> On Tue, Jun 30, 2020 at 9:00 AM Amit Bawer <[email protected]> wrote: >> >>> [Sorry if this message is duplicated, haven't seen it is published in >>> the group] >>> >>> Hi, >>> >>> Have couple of question regarding iscsiadm version 6.2.0.878-2: >>> >>> 1) Is it safe to have concurrent logins to the same target from >>> different interfaces? >>> That is, running the following commands in parallel: >>> >>> iscsiadm -m node -T iqn.2003-01.org.vm-18-198.iqn2 -I default -p >>> 10.35.18.121:3260,1 -l >>> iscsiadm -m node -T iqn.2003-01.org.vm-18-198.iqn2 -I default -p >>> 10.35.18.166:3260,1 -l >>> >>> 2) Is there a particular reason for the default values of >>> node.conn[0].timeo.login_timeout and node.session.initial_login_ >>> retry_max? >>> According to comment in iscsid.conf it would spend 120 seconds in case >>> of an unreachable interface login: >>> >>> # The default node.session.initial_login_retry_max is 8 and >>> # node.conn[0].timeo.login_timeout is 15 so we have: >>> # >>> # node.conn[0].timeo.login_timeout * node.session.initial_login_retry_max >>> = >>> # 120 >>> seconds >>> >>> >>> Thanks, >>> Amit >>> >>> -- >>> 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 view this discussion on the web visit >>> https://groups.google.com/d/msgid/open-iscsi/cc3ad021-753a-4ac4-9e6f-93e8da1e19bbn%40googlegroups.com >>> <https://groups.google.com/d/msgid/open-iscsi/cc3ad021-753a-4ac4-9e6f-93e8da1e19bbn%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > 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 view this discussion on the web visit > https://groups.google.com/d/msgid/open-iscsi/bf75d5e8-f4ed-4a16-86a8-ab78d0cac1cco%40googlegroups.com > <https://groups.google.com/d/msgid/open-iscsi/bf75d5e8-f4ed-4a16-86a8-ab78d0cac1cco%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/open-iscsi/CAK3e-EbOmtv1j6c8AecE1jkGy%3Dzt_0Jdj%3DQwj41DOXuwVNPavA%40mail.gmail.com.
