[Lustre-discuss] More newbie issues

[Robert Healey]

On further investigation, the Ethernet interface was accidentally 
removed while I was swapping drives.  Time for more testing, since the 
cluster is subject to frequent unexpected power cuts.  How does Lustre 
compare to ext3 in terms of having clients unexpectedly power cycled?

Bob Healey

Robert Healey wrote:
> Greetings.  I managed to work around the problem I was having with
>  >> Except from dmesg:
>  >> Jul 17 16:32:42 compute-4-10 kernel: LustreError:
>  >> 3834:0:(ldlm_lock.c:430:__ldlm_handle2lock()) 
>  >ASSERTION(lock->l_resource
>  >> != NULL)
>  >> failed
> 
>  >This looks like bug 15269.
> 
> by moving from RHEL 5.2 on a v20z to RHEL 4.6 on Thumper, ran into a 
> different problem which appears to be a deal breaker for me.  I forcibly 
> failed one of the drives in the raid-1 mirror for the MDT and the file 
> system promptly stopped responding to clients.  The rest of the machine 
> worked just fine.  A reboot of both the client + server cleared the 
> problem.  Its looking like Solaris/ZFS might be a better answer for me.
> 
> Thank you for the advice.
> 

-- 
Bob Healey
Systems Administrator
Physics Department, RPI
healer at rpi.edu