This is not, I think, a new observation.
Following FEE64 power cycles we sometimes observe delayed ( ~5-15 minutes ) authenticated mount requests
as the FEE64s mount their root filesystem from the AIDA server aidas1 - see attachment 1.
There also appears to be an instance of a *missing* authenticated mount request - nnaida10 at 19.51
So this is *a* (but probably not *the*) cause of FEE64 timeouts observed following a FEE64 power cycle
and then waiting 10 minutes before attempting to start the MIDAS DAQ.
I have noticed that these issues appear to be significantly worse when we are using NTFS-mounted USB disks
to backup data from the AIDA server internal disks. Indeed, performance in general is noticeably slower when
using the NTFS-mounted USB disks.
Currently, we attempt to mitigate these issues by either throttling rsync or nice'ing cp. |