I seem to be having a lot of problems with my Buffalo Terastation and running Picasa on a PC mapping some of the buffalo's drives to lettered drives on my desktop.
There isn't much clarification on google's support page:
Picasa cannot currently manage pictures permanently stored on removable storage media like USB flash drives, memory cards, or CD/DVDs. However, Picasa can import pictures from most of these devices.
Would be nice to know if the mapped Buffalo drives were included in that "some mapped network drives" column.
My Terastation is in a RAID 5 condition using an XFS filesystem. XFS is not a Novell or MAC-formatted network drive. I believe it's based on SAMBA linux filesystem, so it should be quite ok.
I am trying to scan the terastation again, but instead of telling Picasa to WATCH the folders, I am just telling it to read them once. Maybe that will reduce the number of issues.
Other telemetry:
As far as I can tell, I'm only having problems with the TeraStation when Picasa is working. The failure mode is either: 1) picasa hangs or 2) the Terastation goes into a many-hour-long diagnostic self-check.
Sometimes the Terastation gets mad and seems to disappear from the network: