I run linux 2.6.9 from kernel.org. I have two hard disks -- internal FUJITSU MHT2030AT and external USB (Nexstar, using ALi M5621 chipset, HDD is a Seagate ATA 200GB ). Using hdparm I can suspend the internal ide hard disk. But hdparm does not operate on /dev/sda. [root@turyx ~]# hdparm -C /dev/sda /dev/sda: operation not supported on SCSI disks How can I suspend my USB hard drive? ALi does not give out data sheets to end users. Can I send some scsi command to make it sleep? Or can I send some ATAPI command directly to the drive through usb interface? Regards, Om. -- You can tune a piano, but you can't tuna fish. You can tune a filesystem, but you can't tuna fish. -- from the tunefs(8) man page -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
