Drobo, Again
Drobo's performance has plummeted from subpar to unusable over the last few days. Maybe this is somehow related to the false positives about being critically low on space upon boot? To test if it was the disks, I pulled them out one at a time for 30s and navigated around in the Finder / Terminal to see if it started behaving like its former self. I tried the top three drives with no success, but then some magic happened. When I put the 3rd drive back in the Drobo it rebooted (uncleanly unmounting), and then started rebuilding my array. Performance is back to normal during the rebuild process (well 7 MB/s read is about half of normal), which I can look forward to for 2-3 days according to the progress indicator.
Corrupted drive? Crippled in software due to a capacity bug? Who knows. I'll see what happens when the rebuild finishes... in any case there's now hope that I can get my data off of Drobo if weirdness persists.
Chris H.
My Drobo just fnished rebuilding, and as soon as I tried to write something to it I'm running into the same old performance problems again. Next step is to dump everything off it, reformat the Drobo, and reload everything on it. If that doesn't work, I'm eyeing some RAID enclosures.