Hi Lejeczek > my iDrac6 currently runs off a dedicated NIC, and afaik it can be either that > or "shared".
If your iDRAC6 has a dedicated NIC it's an iDRAC6 Enterprise. Available modes on the iDRAC6 Enterprise are: Dedicated, Shared, Shared with Failover LOM2, and Shared with Failover All LOMs. http://www.dell.com/support/article/us/en/19/SLN85572 > Thus, with "dedicated" not failover, am I right? With "dedicated" the switch your iDRAC6 is connected to becomes a single point of failure in your fencing logic. > And one would not sacrifice "dedicated" for redundancy, would one? Yes, I would. What do you gain with "Dedicated"? Use one of the "Shared with Failover" modes and redundant network paths the same way you do with other cluster interfaces. Stefan > On Jan 17, 2017, at 6:32 PM, lejeczek <[email protected]> wrote: > > > > On 14/12/16 12:52, Stefan M. Radman wrote: >> Hi Lejeczek, >> >> The Red Hat Access website has two solution documents (content restricted to >> subscribers). >> One for rgmanager (RHEL5-6) >> How to configure fence_ipmilan with Red Hat Enterprise Linux High >> Availability Add On >> https://access.redhat.com/solutions/54843 >> and one for pacemaker (RHEL 6-7) >> How to configure fence_ipmilan with Red Hat Enterprise Linux High >> Availability Pacemaker Add On on RHEL 6, 7 >> https://access.redhat.com/solutions/2271811 >> >> One of my favorite open resources is Clusterlabs >> http://wiki.clusterlabs.org/wiki/Configure_Multiple_Fencing_Devices_Using_pcs >> >> The pacemaker solution has been working reliably here (RHEL6,HA AddOn,PE720) >> for more than two years now and actually triggered a few times, at least >> once during an actual hardware issue. >> >> Here is the stonith configuration we're using in a 2-node HA cluster running >> pacemaker on RHEL6: >> >> # pcs stonith create node1-pwr fence_ipmilan ipaddr=192.168.1.1 lanplus=true >> login=root passwd=calvin pcmk_host_list=node1 >> # pcs resource ban node1-pwr node1 >> # pcs stonith create node2-pwr fence_ipmilan ipaddr=192.168.1.2 lanplus=true >> login=root passwd=calvin pcmk_host_list=node2 >> # pcs resource ban node2-pwr node2 >> # pcs stonith show >> node2-pwr (stonith:fence_ipmilan): Started node1 >> node1-pwr (stonith:fence_ipmilan): Started node2 >> >> Make sure you have IPMI and redundancy (NIC failover) properly set up on >> your iDRAC. >> >> Stefan > oh, this is nice, many! thanks Stefan > my iDrac6 currently runs off a dedicated NIC, and afaik it can be either that > or "shared". > Thus, with "dedicated" not failover, am I right? > And one would not sacrifice "dedicated" for redundancy, would one? > regards > > >> >> On Dec 14, 2016, at 11:55 AM, lejeczek >> <[email protected]<mailto:[email protected]>> wrote: >> >> hi everybody >> >> just a quick question, probably very easy for you guys - >> iDracs as fencing device in HA configs(rhel's)? Would there >> be any docs/howtos? >> Or maybe there is better way to do that with PE servers? >> >> many thanks, >> L. >> >> _______________________________________________ >> Linux-PowerEdge mailing list >> [email protected]<mailto:[email protected]> >> https://lists.us.dell.com/mailman/listinfo/linux-poweredge >> > _______________________________________________ Linux-PowerEdge mailing list [email protected] https://lists.us.dell.com/mailman/listinfo/linux-poweredge
