Re: disaster please help

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Date:         Thu, 23 Jun 2005 08:43:40 +0200
To: aix-l@Princeton.EDU

Hello
question:
how do you force the vary on ?

question2:
I understand that the name of the uservg imported should not be rootvg.
For myself it is uservg.
My old config:
rootvg:
  hdisk0
  hdisk1
uservg:
  hdisk2
  hdisk3

My after crash config:
rootvg:
  new disk of 18.2Go hdisk0
uservg:
  not tested yet, I am afraid.
  but probably
  hdisk1
  hdisk2
because the old hdisk1 is unpluged.

do you mean that I should do
importvg -y uservg hdisk1

--quoted from RM (thank you)--
If you had rootvg (on hdisk0/hdisk1), oraclevg (on hdisk2/hdisk3) and
datavg (on hdisk4) for example:

importvg -y oraclevg hdisk2 # (imports oraclevg which is on hdisk2
and hdisk3)
importvg -y datavg hdisk4

I usually use whatever disk shows up first in the hdisk list for the VG
to do the import, but I don't think it'd matter if you used hdisk3 in
that case...

Keep in mind you will still need to varyonvg each VG that you import,
and mount the filesystems...

--rm
</quoted>

even thought in the previous config the disk was labeled hdisk2 and hdisk3
or should I plus another scsi disk in between as a new hdisk1?

question3:
what could I do with my old hdisk1, part of my old rootvg?
what will hapens if I do
importvg -y rootvg hdisk1?
could I get some LV in it back?
is it preferable to do
importvg -y oldrootvg hdisk1?

question4:
Please help on the command fsck?
and how do I get the LV in the imported VG?
with smitty?

Thank you
Gerard Mamou
.

On Wed, Jun 22, 2005 at 04:59:44PM -0400, Drew T wrote:
> Excellent explanation Simon.
>
> One question for clarification. What are the most common flags you normally
> run with fsck?
>
>
>
>
>
>
> "Green, Simon"
> <Simon.Green@EU.A To: aix-l@Princeton.EDU
> LTRIA.COM> cc:
> Sent by: IBM AIX Subject: Re: disaster please help
> Discussion List
> <aix-l@Princeton.
> EDU>
>
>
> 06/22/2005 05:03
> AM
> Please respond to
> IBM AIX
> Discussion List
>
>
>
>
>
> The importvg command will pick up the volume group information from the
> VGDA, which is present on every disk, (and nothing to do with exportvg).
> You only need to do the importvg for one disk, and it doesn't matter which
> one. This will add all of the filesystems back: everything just the way it
> was.
>
> The name you use doesn't matter: whatever you like. Probably best to use
> the old one.
>
> Some of the filesystems may be damaged, if the system crashed whilst they
> were open. You can fix them with fsck.
>
> You *might* be able to do an importvg for hdisk1. You mustn't call it
> "rootvg", and you'll get error messages that it's got a missing volume, and
> duplicate LV/filesystem names. When you try to vary it on you'll have to
> force it, (probably: depends on the original Quorum).
>
> Also, if any of the filesystems were spread across both hdisk0 and hdisk1
> they'll be damaged. An fsck should get them mountable, but you'll have
> lost
> data and you'll be lucky to get anything useful out of it. Unless there's
> something of vital importance there, I wouldn't bother.
>
> --
> Simon Green
>
> Altria ITSC Europe s.a.r.l.
>
> AIX-L Archive at https://new-lists.princeton.edu/listserv/aix-l.html
> New to AIX? http://publib-b.boulder.ibm.com/redbooks.nsf/portals/UNIX
>
> N.B. Unsolicited email from vendors will not be appreciated.
> Please post all follow-ups to the list.
>
>
> -----Original Message-----
> From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
> Gerard M. MAMOU
> Sent: 22 June 2005 06:59
> To: aix-l@Princeton.EDU
> Subject: Re: disaster please help
>
>
> Hello
> thank you for your answer.
> question continued:
> if these old disks previously known as
> hdisk2 and hdisk3
> are also know (because I have also two disks for my new rootvg)
> should I type
> importvg -y uservg -P hdisk2
> importvg -y uservg -P hdisk3
> meaning:
> should the vg_name uservg of these commands be the SAME as the old
> configuration
> how the new system knows that there is two disks in the uservg
> if I type only one time
> importvg -y uservg -P hdisk2
>
> will the system know about the LV in these two disks? how?
> Thank you
> Gerard Mamou
> .
>
>
> On Tue, Jun 21, 2005 at 01:46:06PM -0700, Patrick B. O'Brien wrote:
> > Get the pvid's of these hdisks;
> > lspv.
> >
> > Now do the following;
> > importvg -y vg_name -P pvid
> >
> >
> >
> >
> > -----Original Message-----
> > From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
> > Gerard M. MAMOU
> > Sent: Tuesday, June 21, 2005 1:26 PM
> > To: aix-l@Princeton.EDU
> > Subject: disaster please help
> >
> > Hello
> > I have a rs6000 43p with rootvg(hdisk0 and hdisk1)
> > and uservg(hdisk2 and hdisk3)
> >
> > The root vg hdisk0 does not boot.
> >
> > I tried to reinstall a mksysb on a new disk.
> > It worked fine.
> >
> > How do I get back my datas of hdisk2 and hdisk3
> > I did not backup them, I did not exportvg them.
> >
> > What can I do with the hdisk1? Could I get the datas on it?
> >
> > Could I use linux with jfs support to mount the hdisk2 and hdisk3? How?
> > Please help
> > Gerard Mamou

• Previous message: Francisco Puente: "AIX Upgrade recommendations - 5.1 to 5.3"
• In reply to: Drew T: "Re: disaster please help"
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