Hello,
For the last few days, /pnfs is having performance issues, while some storage nodes can't serve files. We have not identified the cause yet.
Mainly cd/ls becomes slow, and only a restart of the service makes it work fast again. Also, a couple of storage nodes have a hard time serving files (hence why some of your files have issues), this usually solves itself after a while.
Cheers, The T2B IT Team