New Disk

I put a new 1TB disk in by RAID 0 array, so that's now a 3x 1TB set-up.  It's been up for 10 hours now and hasn't gone down, so it seems to be working.  Measured speeds are faster than before, but I can't tell if there is any practical difference, positive or negative. 

This is redoing the attempt at RAID expansion from last year, that failed due to disk fallouts.  I used the Raid appropriate RE4 disk this time.  I am mixing 2 older Black Caviar disks with a new RE4 disk.  The 2 TB disk was going to fill up in the next few months if I didn't start deleting files and was starting to look like it might be slowing down. 

Update #1 (May 17): disk array is still up after more than 24 hours and heavy disk use rebuilding Lightroom previews.