From: daniel parkes (liquidsmail@gmail.com)
Date: Tue May 23 2006 - 10:07:21 EDT
Hy,
thnx for the answer, thats exactly what i am triying to do, just a couple of
questions about what you say:
when you talk about order in new disks and add those disks in the same order
they were on machine one?
what exactly do you mean o how can i keep and order??
and when you talk about remove the mirror copies we are talking about
lvreduce -m0 etc.. ?? dont i loose the info using lvreduce ??
thnx!!
On 5/23/06, Scalone, Galen <Galen.Scalone@vacationclub.com> wrote:
>
> Daniel,
> If all you want to do is duplicate the vg on the second machine, on a
> different set of disks that "BOTH" machines see, you could do it this way:
>
> On machine one:
> Make a full mirror copy of vgora, on a separate set of disks that BOTH
> machines can see, keeping track of the lvols: their exact sizes in extents,
> *and their order on the new set of disks*.
> Then remove the mirror copy from those disks, and remove those disks from
> the volume group, in order. The data is still there, only the headers
> change.
>
> On machine two:
> Make a vg, and add those disks in the same order they were on machine one,
> then create the lvols, in the same order, and the same size, but DON'T newfs
> them.
> You may need to run fsck on the lvols, but they will be there, and ready
> for mounting. Its a great little trick.....
>
>
>
> -----Original Message-----
> *From:* hpux-admin-owner@DutchWorks.nl [mailto:
> hpux-admin-owner@DutchWorks.nl] *On Behalf Of *daniel parkes
> *Sent:* Tuesday, May 23, 2006 6:40 AM
> *To:* hpux-admin@dutchworks.nl
> *Subject:* [HPADM] lvoling some questions about mirrors and moving vgs
>
> Hy people,
>
>
> I have a doubt,
>
> I have a 11i system with a mirror vg, lets call it vgora for example, and
> i want to have the same vg in another machine, the disks are shared in an
> XP1024.
>
>
> although its not the best idea my question, is it posible to:
>
> stop the vg vgchange -a n vgora
> break the mirror lvsplit - _b /dev/vgora/lvol* pv_names
> take a map of vgora vgexport -p -m map vgora
> assing the disks with lvoles_b to the other machine
> pvscan -va the machine to update lvmtab
> and import de vgimport vgora -m map vgora
> and remove the lvoles without _b
> do another pvscan, vgcfgbackup vgora
> and a vgchange -a y vgora
>
>
> would this work?? if not what would be your idea of doinfg something
> similar??
>
> thnx
>
>
>
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