Hi!
Hmm.. I'll try explain .. Before I did sync or unmount, application, that previosly wrote to reiser4 partition was closed. In moment of running sync or umount OS had about 1.7gb of data in cache memory. Sync was finished in about 45 minutes after. I'm not sure why does it take so long on u320s scsi. The problem can be in files which are written to this partition - a lot (>1M) of really small files. . Do we have to use some mount arguments?
Probably you just have a lot of dirty buffers in RAM and they need to flush to disk?
It's not really practical if server goes out of power and ups will last only 5 minutes - not enought time to safe shutdown of system..
Thanks, Gorazd
