stageina silo tape. It runs on
esawf1, and has its own local disks, with a capacity of ~27 MB currently.
When we finish writing a file, it is transferred to tape. The disk space then becomes available for subsequent data files. We monitor the status of this chain by taking a snapshot approximately every 15 minutes. The last snapshot is kept for those who are terminally idle and curious. Others probably would be satisfied with the following summary plots. Each item is plotted for several different time periods.
This monitoring was started very early (October 1996) to make sure it is well tested by the time we really take data.