On Thu, 2 Mar 2006, Bob Lees wrote:
> Assuming this is on a TS72xx then you are probably going to have throughput
> problems. The USB interface is only 1.1 We have tried this for a server app
> and it was taking many seconds for the pages to load, even off rotating
> media!
>
> Yes you can do software raid on usb drives, again v2.0 is a lot better, even
> then initialising the raid took a long time. We have done this using
> rotating media, on flash drives I think the throughput would kill it.
>
> Our experience shows that flash drives are significantly slower than rotating
> media, which is hardly suprising when you consider that usb flash drives are
> actually nand flash.
>
> Just my 2 cents worth
Thanks for the feedback on your experiences - looks like its back to the
drawing board :-( Shame.
Jim
> On Wednesday 01 March 2006 19:25, Jim Jackson wrote:
> > Hi all,
> >
> > I'm thinking of using a USB flash disk to hold a normal filesystem on a
> > network server project (web serving, email serving etc). I'm going to be
> > factoring out some heavy changing stuff like syslog messages etc, onto
> > a ramdisk or similar. So far I've only used flash disks/CFDisks etc
> > in situtations where the writes were controlled and "managed".
> >
> > I'm curious what diagnostics might indicate when the flash was
> > wearing out? I'm sort of looking for a periodic "test" that might
> > give warning of problems arising.
> >
> > I've also thought about using 2 flash disks in raid mirror mode.
> > Anybody any thoughts?
> >
> > Jim
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
>
> --
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>
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> Dinton
> Aylesbury
> Bucks, HP17 8UG
> England
>
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>
> Yahoo! Groups Links
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>
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