Dear all,
since several days i try to install the hosted engine initially to an iscsi
multipath device without success.
Some information on the environment:
- Ovirt Version 4.3.3
- using two 10gbe interfaces as single lacp - bond for the ovirtmgmt interface
- using two 10gbe storage interfaces on each hypervisor for iscsi storage
-- each storage interface is configured without any lacp bonding or 802.1q
tagging, etc (on the switches the vlan is configured; port based vlan)
-- each storage interface lives in a serarate vlan were also the iscsi target
is available, the iscsi target has 4x10ge interfaces
-- so; each storage interface is connected to a iscsi target through a
different vlan
The documentation here is for me unclear:
https://ovirt.org/documentation/self-hosted/chap-Deploying_Self-Hosted_Engine.html
<https://ovirt.org/documentation/self-hosted/chap-Deploying_Self-Hosted_Engine.html>
>Note: To specify more than one iSCSI target, you must enable multipathing
>before deploying the self-hosted engine. There is also a Multipath >Helper
>tool that generates a script to install and configure multipath with different
>options.
This indicates for me that it should be possbile to install the HE directly on
the /dev/mapper/mpath device which is availibale when I have prepared the host
accordingly before installing the HE (log in to multiple iscsi targets, create
proper multipath,conf, etc) - right ?
I login to the two iscsi targets and get in sum 8 pathes, 4 from each interface
and iscsi target.
I have then the mpath device on the hypervisor available and i can mount the
mpath device and put (test) data on it.
In the cockpit interface the mount can also be activated and is recognized
correctly.
multipathd -ll and lsblk looks good. Everything seems to be fine.
But when I run the "hosted-engine" --deploy, the last option while running the
assistant is to enter the iscsi data.
So, basically i just want to define my mpath device - when entering the data
for one of my iscsi target I can see the 4 pathes of the single target,
and when i choose the path where the "lun" is finally available it fails. I
think in general this option is not that what i want to have
here for using the multipath device.
I' m lost - what is the usual way to install the HE on a mutlipath device ?
Do I have to change the configuration of the storage interfaces or the iscsi
network design?
- Are bond interfaces for these iscsi connections mandatory ?
Did I missed something obvious ?
Can I put in my multipath data into the answerfile somehow to get rid of the
last step of the assistant ?
Is it not possible in general ?? :
https://bugzilla.redhat.com/show_bug.cgi?id=1193961
<https://bugzilla.redhat.com/show_bug.cgi?id=1193961>
Sorry in advance for the long mail .... 1!^^
br,
michael
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