John,

This is in the FAQ for DFM 3.1, it's probably the same for 3.0. Hope it helps. 7.11 What do I do after changing the head, host name or the IP address of an appliance? [top]http://now.netapp.com/NOW/knowledge/docs/DFM_win/rel31/html/software/faq/index.htm#Contents

DataFabric Manager tracks the appliances using three pieces of information:

1. Host name 2. IP address 3. System ID

Usually, if only one of the three items changes, the DataFabric Manager monitor should discover the change when it re-collects system information from that appliance. It should usually happen within an hour. To get a more immediate update, you can request the monitor to refresh data from the appliance by invoking the *Refresh Monitoring Samples* tool from the Appliance Details page for that appliance, or running this command at the CLI:

dfm host discover <*old-hostname-or-IP-address*>

If the IP address is changed, and the address is the one to which DataFabric Manager communicates, it may be necessary to manually update the IP address on the Edit Appliance Settings page for the appliance, or by running this command, before refreshing the monitoring (as described above):

dfm host set <*hostname*> hostPrimaryAddress=*new-address*

If the IP address being changed is not the primary IP address, nothing needs to be done.

d:

dfm host rename <*old-filer-name*> <*new-filer-name*>

Changing all three pieces of information at the same will certainly result in the system looking like a new appliance in DataFabric Manager.

It may be worth doing a "dfm backup create" before major appliance head swaps or upgrades, in case you need to restore DataFabric Manager to an earlier state.

On 7/28/06, John Stoffel john.stoffel@taec.toshiba.com wrote:

I'm running DFM 3.0 for some basic reporting, and I'd like to rename some NetCache appliances which were added in with their name being their IP address, and not their hostname. Makes it a pain to remember which one is which.

Is my only option to delete and re-add the NetCache?

Thanks, John