Hi Yaniv We attempted to share the code a few years back, but I don't think it got accepted.
In vdsm.conf we have two bridged interfaces, each connected to a SAN uplink: [irs] iscsi_default_ifaces = san1,san2 And here is a diff of the file /usr/lib/python2.7/site-packages/vdsm/storage/ vs the original for vdsm-4.20.17-1 : 463,498c463,464 < < # Original Code ## < < #iscsi.addIscsiNode(self._iface, self._target, self._cred) < #timeout = config.getint("irs", "udev_settle_timeout") < #udevadm.settle(timeout) < < ### Altered Code for EqualLogic Direct LUNs for Keele University : G.Lloyd ### < < ifaceNames = config.get('irs', 'iscsi_default_ifaces').split(',') < if not ifaceNames: < iscsi.addIscsiNode(self._iface, self._target, self._cred) < else: < self.log.debug("Connecting on interfaces: {}".format(ifaceNames)) < #for ifaceName in ifaceNames: < success = False < while ifaceNames: < self.log.debug("Remaining interfaces to try: {}".format(ifaceNames)) < ifaceName = ifaceNames.pop() < try: < self.log.debug("Connecting on {}".format(ifaceName)) < iscsi.addIscsiNode(iscsi.IscsiInterface(ifaceName), self._target, self._cred) < self.log.debug("Success connecting on {}".format(ifaceName)) < success = True < except: < self.log.debug("Failure connecting on interface {}".format(ifaceName)) < if ifaceNames: < self.log.debug("More iscsi interfaces to try, continuing") < pass < elif success: < self.log.debug("Already succeded on an interface, continuing") < pass < else: < self.log.debug("Could not connect to iscsi target on any interface, raising exception") < raise < timeout = config.getint("irs", "scsi_settle_timeout") --- > iscsi.addIscsiNode(self._iface, self._target, self._cred) > timeout = config.getint("irs", "udev_settle_timeout") 501,502d466 < ### End of Custom Alterations ### < Regards *Gary Lloyd* ________________________________________________ I.T. Systems:Keele University Finance & IT Directorate Keele:Staffs:IC1 Building:ST5 5NB:UK +44 1782 733063 <%2B44%201782%20733073> ________________________________________________ On 11 February 2018 at 08:38, Yaniv Kaul <yk...@redhat.com> wrote: > > > On Fri, Feb 9, 2018 at 4:06 PM, Gary Lloyd <g.ll...@keele.ac.uk> wrote: > >> Hi >> >> Is it possible/supported to upgrade from Ovirt 3.6 straight to Ovirt 4.2 ? >> > > No, you go through 4.0, 4.1. > > >> Does live migration still function between the older vdsm nodes and vdsm >> nodes with software built against Ovirt 4.2 ? >> > > Yes, keep the cluster level at 3.6. > > >> >> We changed a couple of the vdsm python files to enable iscsi multipath on >> direct luns. >> (It's a fairly simple change to a couple of the python files). >> > > Nice! > Can you please contribute those patches to oVirt? > Y. > > >> >> We've been running it this way since 2012 (Ovirt 3.2). >> >> Many Thanks >> >> *Gary Lloyd* >> ________________________________________________ >> I.T. Systems:Keele University >> Finance & IT Directorate >> Keele:Staffs:IC1 Building:ST5 5NB:UK >> +44 1782 733063 <%2B44%201782%20733073> >> ________________________________________________ >> >> _______________________________________________ >> Users mailing list >> Users@ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> >> >
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users