On Wed, Nov 25, 2009 at 9:45 PM, Alan Dayley wrote: > On Wed, Nov 25, 2009 at 4:22 PM, Kirk Bauer wrote: >> For the record, I have both ntfs and ext4 partitions on the drive, >> both mounted at all times under Ubuntu 9.10, and the drive remains in >> a "standby" state except when I'm actually using the drives. > > Interesting.  If I may ask, I'd like more details for my own education. > > How do you know the drive is in standby? I know when it is in standby by running "hdparm -C /dev/sda" (as I learned on this list). > How do you know when you are actually using the drive? For me, the only thing I have on the drive is my Windows partition (which I virtually never use) and my data stores for VMWare Server. So even though the drives are mounted, and even though VMWare Server is running, until I actually access the Windows filesystem or create/start a virtual machine, the drive isn't being used. > As you start using it, is there any latency or pause before the access > starts?  If so, how long does it last?  (Not looking for hard numbers, > just a felt guess.) Definitely a 2-second delay when I first access the drive when it is in standby. > After you use it, how long before they go back to standby? 30 seconds (because of the -S setting below) > Did you do any special settings or configuration to achieve this behavior? Default Ubuntu 9.10 settings, except I added this to /etc/hdparm.conf (not sure what the default would have been though). command_line { hdparm -B 1 -S 6 /dev/sda } --------------------------------------------------- PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us To subscribe, unsubscribe, or to change your mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss