On Thu, 2015-02-26 at 13:58 +1300, C. Falconer wrote:
> Volker Kuhlmann wrote, On 25/02/15 00:05:
> > On Tue 24 Feb 2015 20:51:38 NZDT +1300, C. Falconer wrote:
> >> But my TV drive is reporting imminent fail, so I'm going to deal to
> >> that.   Comments?
> > Copying off asap is a wise move. But using NFS for that?!??
> Why not?
> It was one way to get the full 3TB visible while not powering off the
> existing server.
> I didn't want to power down the failing disks because they're still
> running, and might not come back.
> 
> The point of my post  was about NFS and mounts lower down the tree not
> working as I expected.
> 
> 
> > USB<->SATA bridges and SATA chipsets may all have a max size for the disk 
> > you can connect to them, probably especially the USB stuff. For
> > this kind of exercise (copying 3TB around) USB doesn't cut the mustard (too 
> > slow, too much trouble) and a direct SATA connection is desirable.
> > Don't you have any computer with a spare SATA slot that can handle 3TB? You 
> > don't even have to power that computer down, just connect SATA data
> > cable and power the disk somehow. If the SATA chipset is properly supported 
> > under Linux a hotplug event will make the disk available soon
> > after. I've done it several times. (No, do not hotplug other stuff on the 
> > mobo, like plug-in cards...)
> >
> > rsync is the way to go for copying (though it may truncate time stamps to 
> > full seconds), but more like over TCP or ssh, not NFS?!??
> 
> I had SATA drive in one machine, NFS over gig ethernet to another
> machine, and SATA to the disk.
> Worked well enough and was done by morning.
> There is no USB used (because it didn't show the full space, which lead
> to using a second machine)
> 
> 
> I could have used rsync over ssh, no reason to choose one over the other.
> 
> I'll synch the other drive using rsync over ssh to see if there's any
> noticeable difference.
> 
Not too sure why Volker is maligning NFS - it's pretty good at what it
does that's for sure.

There's no need to use rsync over ssh - just use rsync. As this is
primarily multimedia data it ain't gonna compress is it?

Just use the format [email protected]::/remote/dir rather than a single
colon.

Steve


-- 
Steve Holdoway BSc(Hons) MIITP
http://www.greengecko.co.nz
Linkedin: http://www.linkedin.com/in/steveholdoway
Skype: sholdowa

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