Yes - It could be.
The other IPs you described as 'public'. You might not want to for security resons.
From the Snapdive Best Practice Guide:
Q. How can I ensure that SnapDrive traffic is routed to the correct interface on the storage system?
A. Configure each network interface on the storage system by IP address rather than by host name. You can use SnapDrive to set the preferred IP address.
Using a host name might work (SnapDrive will try to resolve it to an IP address), but there is no guarantee that it will: SnapDrive might not be able to discover the IP address and, if it does and there is more than one NIC, there still might not be a way to know which was intended.
As of SnapDrive 3.1, configuring the interface by IP address ensures that SnapDrive traffic is routed correctly.
Note: There is an additional consideration if you are using the iSCSI protocol. By default, any IP interface on the storage system, including the storage system's 10/100 e0 interface, will accept iSCSI commands, and this might not be what you want. To ensure that all iSCSI commands are processed by the storage system's GbE or Fast Internet interface, disable iSCSI processing on e0 by means of the following command:
iswt interface disable e0
Caution: Do not allow this command to complete while there are active iSCSI sessions connected to the e0 interface (the storage system warns you when you issue the command if this is the case). You must first disconnect those sessions from the host, and that might entail scheduled downtime to allow you to shut down the applications using the affected LUNs.
I hope this response has been helpful to you.
At your service,
Eugene E. Kashpureff
ekashp@kashpureff.org
NetApp Instructor and Independent Consultant
http://www.linkedin.com/in/eugenekashpureff
(P.S. I appreciate points for helpful or correct answers.)