[ale] recommendations on external USB drive for Linux, pls

[Jerry Yu]

interesting. what kind of support in the kernel and os for "SATA II Hard
Drive with perpendicular recording technology" ?

On 11/1/06, Greg Freemyer <greg.freemyer at gmail.com> wrote:
>
> On 11/1/06, Robert Story <rstory-l at 2006.revelstone.com> wrote:
> > On Wed, 1 Nov 2006 07:02:57 -0500 Jerry wrote:
> > JY> I need to stage backups at a co-lo. A daily full set totals 15G or
> so. Tape
> > JY> lib/magazine option is out for now, so an external USB drive sounds
> good.
> >  ...
> > JY>    - it needs to stay on 24x7x365 w/o overheating or burning into
> ashes
> >
> > If this is the case, I recommend against USB/Firewire, and would instead
> go
> > with external SATA.
> >
> > 1) I'm pretty sure neither USB nor Firewire will let you spin down the
> drive
> > when idle. Since this is a backup drive, that will likely be most of the
> time.
> >
> > 2) I'm very sure that neither USB nor Firewire will let you do SMART
> > monitoring, so you can know when a drive is starting to fail.
> >
> > 3) I'm 100% positive that SATA will be faster than USB or Firewire.
> > _______________________________________________
>
> The linux 2.6 kernel sata driver is rapidly maturing, so 2.6.18 is
> vastly better than 2.6.17 at error handling and 2.6.19 will have a lot
> of improvements over 2.6.18.  Even more are in the devel tree and
> planned for 2.6.20 inclusion
>
> See http://linux-ata.org/driver-status.html#matrix for a 2.6.19-rc1status.
>
> If I were going to go with eSata I would definitely want to use a
> controller that Linux supported hotplug with.  Per the matrix there
> were only 4 a month ago.  2.6.20 is expected  to support a lot more.
> ie. several more are supported in the current libata devel tree, but
> not in mainline yet.
>
> Greg
> --
> Greg Freemyer
> The Norcross Group
> Forensics for the 21st Century
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>
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