XFS errors on large Infiniband fileserver setup

[Christian Herzog]

Dear list,

my colleague has been running tests without ISER all morning, and so
far we haven't encountered an error, even though we have copied > twice
as much data as for the other tests. Is it possible that a problem in
the transport layer remains undetected and only manifests itself in the
filesystem?

thanks again,
-Christian




> following modifications have been suggested and we're working on them
> right now:
> 
> - try w/o ISER (direct IB over TCP)
> - try an XFS filesystem < 2T
> - try RHEL or SLES (will take more time)
> 
> We already had to change the I/O scheduler from Deadline to CFQ in
> order to get it up and running at all and also tried to change the
> kernel from stock LTS to 2.6.34-020634-generic, but we still get the
> FS errors.