Dan, Dave:
Prior to this morning's DAQ restart I reconfigured h1nds1 (default NDS) to serve the archived raw minute trend data which Dan had recovered over the weekend onto the new SATABOY-RAID (a ZFS files system with compression enabled). I tested this to verify minute trend data is now available from the aLIGO DAQ epoch which is 12:25 PST Wed 16 Jan 2013. Attached plot shows a pem seismic channel for the whole year of 2013.
The raw minute trends are stored on a compressed ZFS file system, built on a re-purposed SATABOY RAID. Compression is done in software on the Oaracle/Sun Microsystems 4270 computer. Getting 500 days of minute trend data took h1nds1 only 5 seconds to retrieve and plot.
The compressed ZFS file system is 10.8TB in size. The current four years of raw minute trend data is consuming only 2.6TB of this (24%). We should be good for raw minute trend storage for many years to come.
Dan is now restoring all the archive min trend data onto h1ldasgw1's SATABOY. ETA is Friday.