[linux-lvm] Mandrake 8.1 and LVM

[Steve Wray]

Sounds to me like Linux is a sort of in-betweeny here!

I assume that its possible to boot HP-UX and AIX machines
from their 'rescue' media and have full and easy access
to the LVM structure?



> From: linux-lvm-admin at sistina.com [mailto:linux-lvm-admin at sistina.com]On
> Behalf Of Sarwer Zafiruddin
>
> IMHO (which shouldn't mean much to anyone), a few Unix platforms out there
> do use LVM for their root/OS filesystems, like HP HP-UX and IBM AIX.  My
> experience with both are that they are very useful for OS filesystem
> issues (especially for failing disks).  The reason LVM works so well in
> these platforms is that the kernel, bootup sequences, and installation
> media all have tight LVM intergration.  On the other hand I have also seen
> piss poor implimentation of LVM with the OS filesystems, like
> Solaris/Veritas root encapsulation (when it works...it's good, when it's
> broke...prepare for a major headache). I am hopefull as Linux LVM matures,
> major distributions will intergrate it as a critical feature of
> the OS.  That
> will also be a major step in making the Linux a more viable OS solution in
> the Enterprise.
>
> Sarwer
>
> On Thu, 29 Nov 2001, Steve Wray wrote:
>
> > > From: linux-lvm-admin at sistina.com
> [mailto:linux-lvm-admin at sistina.com]On
> > > Behalf Of mitch at mdmiller.com
> > > > (b) dynamically expand the amount of space available to the
> > > root partition.
> > >
> > > Pardon me for being a neophyte here, but what else goes on the root
> > > partition which takes any significant or dynamic amount of
> space?  Isn't
> > > the root just a place to put all the top level directories,
> the contents
> > > of which are typically all on another partition anyway?
> >
> > Exactly; virtually all the content of the root partition should
> > be describable as "static/unshareable" which means that it doesn't
> > need snapshotting in case you accidentally delete something,
> > or dynamically resizable.
> >
> > Another of the purposes of the root filesystem is to provide
> > an island of sanity in a sea of madness when things go wrong;
> > typically the ideal is to have a system that can easily be
> > booted into a rescue mode from the root partition only.
> > In this setup one has "ghost" /usr/*bin et al directories
> > that are on the root filesystem but get mounted over
> > when you boot the system for real. These can provide the
> > tools you need to rescue the system.
> >
> > Having root LVM just means that if anything goes wrong
> > with the LVM subsystem then you *need* the system to
> > be bootable from floppy or CDROM, and that is sometimes
> > less practical than having root *not* be LVM in the
> > first place!
> > :)
> > anyhow this is getting away from the topic (which I'm really
> > interested in); LVM on mandrake 8.1 with devfs...
> >
> > >
> > > -- Mitch
> > >
> > >
> > >
> > > _______________________________________________
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> > > http://lists.sistina.com/mailman/listinfo/linux-lvm
> > > read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
> > >
> > >
> >
> > _______________________________________________
> > linux-lvm mailing list
> > linux-lvm at sistina.com
> > http://lists.sistina.com/mailman/listinfo/linux-lvm
> > read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
> >
> >
>
> --
> --------------------------
> System Administrator
> Rune Information Services
> http://www.rune.org
> e-mail:  sarwer at rune.org
> --------------------------
>
>
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