[lustre-discuss] Moving MGT to new host

Dilger, Andreas andreas.dilger at intel.com
Fri Jan 19 13:53:44 PST 2018

On Jan 18, 2018, at 09:00, Michael Watters <wattersm at watters.ws> wrote:
> What is the proper way to move an MGT from one server to another?  I
> tried moving the disk between VMs and remounting it however the NID for
> the target never comes up.  Is there a way to add a new NID using a
> secondary IP with lnetctl?  I don't see a command to do so listed in the
> man page.

There is "lctl replace_nids"?

The manual also mentions:

    38.18.4. Examples

    Change the MGS's NID address. (This should be done on each target disk,
    since they should all contact the same MGS.)

        tunefs.lustre --erase-param --mgsnode=<new_nid> --writeconf /dev/sda

Cheers, Andreas
Andreas Dilger
Lustre Principal Architect
Intel Corporation

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