[Openstack-operators] Cinder with iscsi in a different IP that the cinder-api IP
Juan José Pavlik Salles
jjpavlik at gmail.com
Fri Aug 9 21:16:36 UTC 2013
Hi guys, we are using cinder with LVM+iscsi as block storage and it works
great so far. Now we want to change one little thing, this is what we have
This way everything works fine, but we want to separate the cloud admin
network (172.19.136.0/24) from the block storage access network (
We want this new config:
compute-node1: eth0=172.19.136.13/24 eth1=172.19.137.13/24
storage-node1: eth0=172.19.136.245/24 eth1=172.19.137.245/24
No problems so far, but when i attach a cinder volume to an instance the
iscsi connection goes through 172.19.136.13<->172.19.136.245 when i'd like
it to go through 172.19.137.13<->172.19.137.245.
Looking in nova-compute.log i found:
2013-08-09 20:46:40.737 DEBUG nova.utils
d1e3aae242f14c488d2225dcbf1e96d6] Running cmd (subprocess): sudo
nova-rootwrap /etc/nova/rootwrap.conf iscsiadm -m node -T
172.19.136.245:3260 --op update -n node.startup -v automatic execute
That explains why the connection goes that way, and maybe there's a place
where i can tell cinder what interface i want it to expose. It seems that
it's using the same IP as the API.
I tried using
in cinder.conf but didn't work.
Is it possible?
Pavlik Salles Juan José
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