[Lustre-discuss] Question about failnode

[Kazuki Ohara]

Brian J. Murrell wrote:
> On Fri, 2007-10-26 at 16:03 +0900, Kazuki Ohara wrote:
>> Hi Brain,
>> Thank you for your answer.
> 
> NP.
> 
>> By the way, I doubt the need of the --failnode directive.
> 
> It's needed.  That is how the MGS and thusly all other nodes learn of an
> OSS's failover partner.  This information is communicated via the
> mkfs.lustre command to the MGS.

uh...
Thank you for you answer, but,
I can't find out the reason why MGS and OSS need to learn of the failover partner.
By that information, does MGS or OSS request the partner not to access the shared volume
or something special requests?

Excuse my persistent question.

Best regards,
Kazuki Ohara