[ale] USB->IDE problems
Christopher Fowler
cfowler at outpostsentinel.com
Thu Jan 22 10:50:53 EST 2004
That is a good idea. I would have to keep flash size limited to what I
can spare in ram
On Thu, 2004-01-22 at 10:18, Dow Hurst wrote:
> How are hotswap hard drives taken care of? Can you treat
> the USB device like it is part of a RAID array and is an
> extra mirror that is hotswappable? You'd need a RAM drive
> as the primary drive and some RAID code for the USB device.
> Dow
>
>
> Chris Fowler wrote:
> > I would like to write log data to an external thumb drive. If the user
> > unplugs it to read it then I need to be able to stop writing. When they
> > plug it back in I start writing data again. I do not intend on
> > buffering data until they plug back in. If it does not exist then the
> > data would not be written.
> >
> > I've rewrote much of the hotplug code in C because the hotplug stuff
> > that is on kernel.org and in RH is written in bash. I can not really do
> > IPC with bash.
> >
> > I can have hotplug start up the streamers when it is plugged in. Then
> > the streamers will be terminated when it is unplugged. It is also
> > possible that the streamers could always be running. They would not
> > carry file descriptors around for the log files on the flash. They
> > would open(), write(), close(). Then go into a select() loop waiting on
> > data to write to flash.
> >
> >
> > On Wed, 2004-01-21 at 21:17, Geoffrey wrote:
> >
> >>Chris Fowler wrote:
> >>
> >>>There may be some corruption of the file in vfat. But that is not
> >>>really of a concern. I can recover from that in my code.
> >>
> >>So I guess I don't understand the problem. I'd suggest you'd be in the
> >>same boat with ext2, ext3, Reiser or whatever.
> >
> >
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> > http://www.ale.org/mailman/listinfo/ale
> >
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