ISCSI Failover NIC config

Hi

I have a questen about the Network configuration for ISCSI Failover

at the open-e Webinars the sample IP Config are:

Virtual IP Storage: 192.168.10.250 and 192.168.20.250. the Storage Client 192.168.10.251 and 192.168.20.251

all Subnet mask are 255.255.255.0

I know that the virtual IP address must be on a different subnet than the physical IP addresses

But is it possible to use a Subnetmask for the Virtual IP like 255.255.0.0 ? (and the physical IP are not 192.168.xxx.xxx )

For a Multipath config at the Storage Client the Client .10.251 can connect to the Storage over .10.250 and .20.250, also the second NIC at the Storage Client. - four way multipath
At the sample Config from the webinar, the Storage Client .10.251 can only connect to the storage over .10.250 and the .20.251 to the Storage over .20.250 - two way multpath

br
Wolfgang

If the clients and VIP are on the same network they should be able to work fine - did you test?

No, because I get a Error, if I config the sec. VIP:

The entered virtual IP is in the same subnetwork as one of the network interfaces or virtual IPs that already exist in the system.
It is recommend to use IP that has a unique subnetwork class and is not used in any other place in your configuration.
Do you want to continue?

first VIP: 192.168.8.40 / 255.255.248.0
sec. VIP: 192.168.9.40 / 255.255.248.0

Client1 192.168.8.21; 192.168.9.21 / 255.255.248.0
Client2 192.168.8.22; 192.168.9.22 / 255.255.248.0
etc.

br
Wolfgang

Even though you get the warning, you can still have them in the same subnet.
If your iSCSI subnet is independant from all other LAN traffic, this will not be an issue.

No, because I get a Error, if I config the sec. VIP:

The entered virtual IP is in the same subnetwork as one of the network interfaces or virtual IPs that already exist in the system.
It is recommend to use IP that has a unique subnetwork class and is not used in any other place in your configuration.
Do you want to continue?

first VIP: 192.168.8.40 / 255.255.248.0
sec. VIP: 192.168.9.40 / 255.255.248.0

Client1 192.168.8.21; 192.168.9.21 / 255.255.248.0
Client2 192.168.8.22; 192.168.9.22 / 255.255.248.0
etc.

br
Wolfgang

make sure a VIP, and a real IP are not matching in the system.