On 01/25/2012 08:52 PM, Chuck Lever wrote: > > >> I always thought that was inconsistent. With an hard mount NFS >> will never give up and will retry for ever freezing all IOers until >> the server came back. Only with root-mount it gives up. > > Not true, user space mount can also give up. See nfs(5), the retry= > option. This is not NFS I/O we're talking about here, there is no > risk of data corruption. So "hard" versus "soft" does not apply. > OK I see your point >> Please explain what is the benefits of giving up at all. Can a machine >> be at all usable without it's root? > > There are several different root file system options built into the > kernel. NFSROOT is but one. Each is tried in succession. If NFSROOT > never gives up, then the others that follow it are never tried. > OK I did not know that. Thanks for the explanation, good to know. In the few times I tried NFSROOT I never setup an alternative. I wish that in the case that the NFSROOT is the only option it would keep trying. When the Kernel does not find it's root it panics, I know. If the sata disk is not there, it's not there. But with NFSROOT there is a good chance it will come up soon. (We all saw the same power outage and the server is slow to boot) I just think it could be more user friendly that's all Thanks Boaz -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
