Some issues over the last two weeks related to the tape.  Last week the dcache pool facing the tape froze, leading to failures when transfers accumulated.  The previous week we had an issue with a couple of pools that were not delivering enough throughput.  This led to errors that filled the dcache head node disk with logs, causing it to crash, and there was some difficulty in returning to normal operations.

IPV4 off test on LHCOne went with no problems.