[lustre-discuss] Adding a servicenode (failnode) to existing OSTs

[Steve Barnet]

Hi all,

   Thanks for the info. Very helpful!

Best,

---Steve


On 4/4/18 12:07 PM, Mohr Jr, Richard Frank (Rick Mohr) wrote:
> 
>> On Apr 3, 2018, at 1:14 PM, Steve Barnet <barnet at icecube.wisc.edu> wrote:
>>
>> There appear to be a
>> couple ways that this could be done:
>>
>> a) Add the service nodes:
>>    tunefs.lustre --servicenode=nid,nid /dev/<OST>
>>
>> b) Add a failover node:
>>    tunefs.lustre --param="failover.node=<nid> /dev/<OST>
> 
> The first one is the preferred method.  Keep in mind that the “—servicenode=nid,nid” syntax is intended for specifying multiple nids that belong to the same host.  To specify multiple hosts for failover, you will want to add a —servicenode option for each host.
> 
> --
> Rick Mohr
> Senior HPC System Administrator
> National Institute for Computational Sciences
> http://www.nics.tennessee.edu
>