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List:       suse-linux-e
Subject:    [SLE] USB disk hotplug sync mounting
From:       Jan Romportl <rompi_news () post ! cz>
Date:       2005-05-23 9:52:40
Message-ID: 200505231152.40262.rompi_news () post ! cz
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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

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