Re: [ovirt-users] Ovirt 3.6 to 4.2 upgrade
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 wrote:
>
>
> On Fri, Feb 9, 2018 at 4:06 PM, Gary Lloyd 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
Re: [ovirt-users] Ovirt 3.6 to 4.2 upgrade
On Fri, Feb 9, 2018 at 4:06 PM, Gary Lloyd 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
Re: [ovirt-users] Ovirt 3.6 to 4.2 upgrade
Hello Gary, as far as i know upgrade path isn't direct and you have to migrate first to 4.0, then 4.1 and finally 4.2. You can migrate vms from 3.6 to 4.0 IIRC. But don't know if mixing 4.2 and 3.6 it's possible. Luca On Fri, Feb 9, 2018 at 3:06 PM, Gary Lloyd wrote: > Hi > > Is it possible/supported to upgrade from Ovirt 3.6 straight to Ovirt 4.2 ? > Does live migration still function between the older vdsm nodes and vdsm > nodes with software built against Ovirt 4.2 ? > > 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). > > 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 > > > ___ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > -- "E' assurdo impiegare gli uomini di intelligenza eccellente per fare calcoli che potrebbero essere affidati a chiunque se si usassero delle macchine" Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716) "Internet è la più grande biblioteca del mondo. Ma il problema è che i libri sono tutti sparsi sul pavimento" John Allen Paulos, Matematico (1945-vivente) Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] Ovirt 3.6 to 4.2 upgrade
Hi Is it possible/supported to upgrade from Ovirt 3.6 straight to Ovirt 4.2 ? Does live migration still function between the older vdsm nodes and vdsm nodes with software built against Ovirt 4.2 ? 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). 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
