Eric Hidle on 2 Sep 2004 17:11:02 -0000


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Re: [PLUG] Disaster Recovery Strategies


In that case, you might want to explore using kernel-based Raid-1 mirroring,
which can mirror two partitions so long as they are the same geometry. Of
course, the O/S is still a single point of failure, but at least if a drive
went out, all you'd have to do is make the surviving one disk0 and attach a
new one, set up the partition, and let it rebuild the mirror... that'd
certainly be cheaper :)

E

----- Original Message ----- 
From: "David Richardson" <dgr24@drexel.edu>
To: <plug@lists.phillylinux.org>
Sent: Thursday, September 02, 2004 12:39 PM
Subject: Re: [PLUG] Disaster Recovery Strategies


> That sounds nice, but I don't see a RAID-5 controller with a hotswap
> chassis in my future. ;)
>
> I should have mentioned, the down time is not the issue.  It doesn't
> matter if the machine is down for weeks.  I just don't want to have to
> spend more time than is absolutely required to bring the machine back up.
>
> Dave
>
> Eric Hidle wrote:
> > What you really want is a Raid-5 controller with a hotswap chassis for
your
> > drives. 3Ware makes excellent hardware with linux source drivers as
well.
> > It's expensive, but if you want true single-drive-failure-zero-downtime
> > operation, it's the way to go, IMHO. Raid5 has saved my butt on more
than
> > one occasion.
> > E
> >
> > ----- Original Message ----- 
> > From: "David Richardson" <dgr24@drexel.edu>
> > To: <plug@lists.phillylinux.org>
> > Sent: Thursday, September 02, 2004 11:01 AM
> > Subject: [PLUG] Disaster Recovery Strategies
> >
> >
> >
> >>I have a linux machine that I would like to be able to completely
> >>restore to its current configuration in the event of a hard drive
> >>failure.  I'd like to be able to just pop in a new hard drive, and have
> >>it magically work like the old one without the need to manually install
> >>or configure software.
> >>
> >>I was thinking about just using dd to copy the entire hard drive on the
> >>currently working machine to a file and then if I ever need to put in a
> >>new drive just using dd to write the contents of the old drive onto the
> >>new drive.  Is it a problem if the new drive is a different size than
> >>the old?  Or does anyone have a suggest of a better way?
> >>
> >>Thanks,
> >>Dave
> >>
> >
> >
___________________________________________________________________________
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___________________________________________________________________________
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http://www.phillylinux.org
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http://lists.phillylinux.org/mailman/listinfo/plug-announce
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http://lists.phillylinux.org/mailman/listinfo/plug
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___________________________________________________________________________
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http://www.phillylinux.org
> Announcements -
http://lists.phillylinux.org/mailman/listinfo/plug-announce
> General Discussion  -- 
http://lists.phillylinux.org/mailman/listinfo/plug
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___________________________________________________________________________
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Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
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