Hi Christoph, Am 15.12.2008 11:06, schrieb Christoph Neuhaus: > Hi Rainer, > >> When the external disk is mounted, it does not go into >> standby/sleep/whatever, though I'm using it only for 30minutes at night. >> >> Is there a way to do this with C4, 2.6.9-78.0.8.ELsmp? >> E.g. unmount/some special command/upgrade to 5.2? > > man sg_start (part of the sg3_utils package). For a Western Digital MyBook > I use: > sg_start 0 --pc=3 /dev/sda that's exactly what I was looking for, have the same WD drive here. I'm not in front of the server so I can only presume by the time it takes to mount/access - it does only standby when the filesystem is not mounted? Thx Rainer