I find that I get a lot better performance by finding the device that the usb will mount. I have added the following items in my fstab /dev/sdc1 /media/cfc auto user,noauto,rw,exec 0 0 /dev/sdd1 /media/smc auto user,noauto,rw,exec 0 0 /dev/sde1 /media/msc auto user,noauto,rw,exec 0 0 /dev/sdf1 /media/mmc auto user,noauto,rw,exec 0 0 /dev/sdc1 /media/backup auto user,noauto,rw,exec 0 0 Created the appropriate directories in /media I can get my disk drive to perate between 20 to 25MBytes per second after I mount the drive to the appropriate mounts. Sid Boyce wrote:
Jan Romportl wrote:
Hello everyone,
could you please give me an advice how to solve the following problem:
I've got an external 200GB Maxtor USB harddisk. In SUSE 9.3 it is automatically mounted as a subfs hotplug device to /media/usb_disk. It is mounted with synchronous acces (i.e. sync option for mount). However, this sync causes that the writing speed can be only 2MB/s with 100% cpu load (it normally writes about 20MB/s). In SUSE 9.2 I figured out that when it is mounted without sync, the performance is OK (i.e. 20MB/s writing). I have modified /etc/hotplug/hotplug.subfs.functions (i.e. deleted 'sync' from the mounting line there) and after that all worked fine. But in SUSE 9.3 (which I currently use) no matter what I change in /etc/hotplug/hotplug.subfs.functions, the USB disk is always mounted 'sync' (with that horrible writing performance). I understand that it's got something to do wit HAL, but I desperately need to mount the USB disk without sync. Can anyone tell me how to do that? (or even better - how to make sync mounted usb disk write faster than 2MB/s?)
Thank you very much in advance
Jan Romportl
Try replacing sync with async, see "man mount". Regards Sid.
-- Joseph Loo jloo@acm.org