isfs6_20110113_000000.dat is corrupt for some reason.
When one does an rsync, the following are reported on isfs6:/var/log/isfs/messages
The rsync also results in a bunch of these errors in /var/log/isfs/kernel:
So that it doesn't get in the way of successive rsyncs, I moved the file to isfs6:/media/usbdisk/projects/PCAPS/bad
data_stats on the rsync'd file reports many bad samples, with incorrect types, ids, length, times, etc.
I was able to clear our most of the junk with these commands on the file at EOL:
The real-time file for isfs6 for that day looks quite complete, so I don't think we have lost much, if anything.
We'll see if we have any other problems on the usb flash drive at wslope6. I plan to leave that file where it is in case it is covering a bad address on the flash, to avoid writing to that address again.
The glitch doesn't seem to have anything to do with a sudden power down, wslope6 has been up for 23 days.