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Smartdevice usecaseSmartdevice usecasePosted Aug 24, 2012 17:25 UTC (Fri) by jimparis (subscriber, #38647)In reply to: Smartdevice usecase by Aissen Parent article: On the need for a new removable device filesystem
> The USB Mass storage model is "all or nothing": it forces the gadget to abandon everything it's doing with the partition/fs as soon as it's plugged; and then rescan everything (for safety, database updates, etc.) when unpluggued.
> That is a problem that cannot be adressed with a new filesystem.
Why not? The reason the gadget needs to "abandon everything" is because none of the currently-used filesystems can handle concurrent access to the underlying device at the block level. But there are filesystems that are supposed to allow that, like http://en.wikipedia.org/wiki/Global_File_System
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Smartdevice usecase Posted Aug 27, 2012 8:02 UTC (Mon) by Aissen (subscriber, #59976) [Link]
Thanks ! I didn't know about GFS2. It still has some hardware requirements that are nowhere to be found on a mobile phone.
It would be interesting to see how this tech would apply to embedded devices.
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