Re: [ovirt-users] Fwd: Multipath iSCSI with several IPs

2016-08-04 Thread James Michels
Nice, now it's crystal clear. This is an Huawei Oceanstor disk array which we want to test with ovirt so we can see performance, how ovirt behaves with situations where one controller is disconnected etc., that's why we wanted to implement multipath. Thanks for the insight! James 2016-08-04

Re: [ovirt-users] Fwd: Multipath iSCSI with several IPs

2016-08-04 Thread Dan Yasny
On Thu, Aug 4, 2016 at 10:37 AM, James Michels < karma.sometimes.hu...@gmail.com> wrote: > Hi Dan, > > The way you describe it I should have 2 storage backends with 2 IPs for > the same SAN backend, right? > Every iSCSI SAN has multiple portals (usually one on each storage controller, and each

Re: [ovirt-users] Fwd: Multipath iSCSI with several IPs

2016-08-04 Thread Alex Crow
On 04/08/16 15:37, James Michels wrote: Hi Dan, The way you describe it I should have 2 storage backends with 2 IPs for the same SAN backend, right? The problem I see is that when you create a disk for a VM, you assign it to only one storage domain... so if the first fails, how will oVirt

[ovirt-users] Fwd: Multipath iSCSI with several IPs

2016-08-04 Thread James Michels
Hi Dan, The way you describe it I should have 2 storage backends with 2 IPs for the same SAN backend, right? The problem I see is that when you create a disk for a VM, you assign it to only one storage domain... so if the first fails, how will oVirt know which one should use as failover? Thank