Hi there
For security reasons we have a segregated network, with Snapcenter and the storage controllers in Zone A and the host servers in zones B C and D.
Each Zone has its own SVM to support the hosts and is providing storage over iscsi to the hosts. To allow snapcenter to manage the SVMs the SVMs for Zones B C and D have 2 management IPs on separate lifs and Vlans. e.g IP 1 192.x.x. and IP2 10.x.x.x
issue arises when trying to implement snapcenter and adding SVMS to Snapcenter that it can resolve and that the hosts can access.
So far using Snapcenter 4.4 i have tried
1: Adding the SVM with the local IP and the Host zone IP as preferred. Error Snapcenter cannot access preferred IP so will not add host
2: Adding the SVM with the Host Zone IP, Error snapcenter cannot access the preferred IP
3: Adding the SVM via a DNS name locally resolvable to Snapcentre local management IP - error when host enumerates storage as gets storage controller SVM details from Snapcenter and selects incorrect IP for management
4: Adding the SVM via a full FQDN, resolvable locally and in the host zone to the relevant IPs - error as 3 host plugin does not appear to do a local dns lookup and gets the storage controller details from snapcenter and selects the incorrect IP for management
when enumerating the storage on the host the logs show the correct IP for the host zone is listed second but as no preference IP is set it chooses the first, and fails to connect.
It seems the preferred IP option was created to overcome the problems above, but assumes that the Snapcenter server can access all areas! not ideal in a secure segregated environment.
Can anyone advise how I can may be able to workaround or solve this e.g. reorder the management IPs on the SVM so that the host selects the correct IP, or how I can set the preferred Ip without the snapcenter server then trying to connect to that IP and the throwing an error.
if any one from netapp is looking can we please consider a change so that the SVM IP for each host is defined when adding the host rather then letting it discover this for itself - as this would solve the problem also and allow for segregated networks where Snapcenter does not require god like access.
any other suggestion or approach welcome as running out of road
thank you