> > Normal behavior of a disk that was forced to spin down using hdparm -Y. > > Pity it didn't remain powered down, there's probably some other processes > > running that still cause disk I/O. > > Like [kupdate], bdflush or whatever? > > I've noticed that my disk is periodically accessed (about every few seconds) > even with apparently no activity and I blamed it on one of the above.
Nope, these only actually write to disk when there's dirty buffers or
metadata.
Michael
