[Lustre-discuss] Question about failnode

[Brian J. Murrell]

On Tue, 2007-10-30 at 15:14 +0900, Kazuki Ohara wrote:
> Hi, Brain

Hi,

> Nevertheless the OSSes itself don't need to know the failover partner,

Right.

> who does need to get and use the information of the partner that is hold by the MGS?

Clients of course.  A client needs to know that for a given OST
"service" that alternate paths (i.e. OSTs) can be used to reach it.

> I'm sorry for making you worry.
> I understood Lustre do nothing for exclusive accesses and it must be ensured by
> Heartbeat and STONISH mechanism by your previous answer.

OK.  Good.

b.