[SunHELP] Implementing software RAID 1 on enterprise 250

[powlow]

thanks to both of you for the suggestions.

since the machine was recently installed (by me), it was decided to
re-install and start from sratch. the hard disk was corrupted and giving
strange messages like:

wrong magic number in label (or something similar)

i tried fixing it with format but disc was still corrupted.

realise the disc could of been replaced and recovered but it really was
an almost clean install at this point.

i now reinstalled solaris and left 13M free on slice 7. monday i will
have a go at seting up raid 1 properly. the reson this problem happened
was cause someone (i know who!) rebooted the machine without asking me,
simply assuming the raid mirroring was done! ai ai ai!

anyway,

so i have / mounted at slice 0 and swap at slice 1 or 2 (requested
layout). swap is 2.5M, slice 7 is not mounted and 13M. / is everything
else. any tips on how to go about this? i would be interested in giving
it a go without the metatool (always good to know the command line way i
think).

cheers so far
-paulo

> I have created a script ( http://www.rootprompt.net/SOFTWARE/mirror.pl )
> to help in the setup of DS. I also have a howto (
> http://www.rootprompt.net/disksuite_mirror.html ) that should give
> you an idea how to do this via command line.
> 
> Robert
> 
> Robert Banniza
> Senior UNIX Administrator
> Ascension Health
> Phone: 812-228-2157
> 
> >>> wyatt at draggoo.com 02/28/02 12:26PM >>>
> I've never used the metatool --- I prefer to do everything by editing
> the /etc/lvm/md.tab
> file by hand and then running metadb and metainit.  I think it's a lot
> easier to really know
> what's going into your metadevices this way.  I'd mddb lines to your
> md.tab file, and then
> run the metadb and see if that works.
> 
> Wyatt
> 
> > 
> > trying to implement software RAID on a new machine. did this before
> no
> > problem. i had some problems with the display and bringing up
> metatool.
> > when i finally got it up, greeted by :
> > 
> > The Metastate Database (metadb) contains no replicas.
> > 
> > You must add at least 1 replica to it before you can commit any
> > metadevices you create.
> > 
> > Ideally you should have several replicas (at least 3) distributed
> over
> > different disks and controllers to maximize fault tolerance.
> > 
> > ----
> > WHen i evaluate the MetaDB i get :
> > 
> > 59:10 PM GMT The Metastate Database has the following configuration
> warning:
> > 
> > The state database will have no replicas.
> > 
> > If the system reboots, all metadevices will be corrupted.
> > 
> > ----
> > following Solstice DiskSuite 4.2.1 User's Guide, i drag the meta db
> into
> > the work area and click on disk view. the disk view is empty and
> there
> > are no controllers (view all controllers changes nothing). Clicking
> on
> > view slices, no slices show up.
> > 
> > does anyone know what is going on or where i should go from here? i
> am
> > really stuck on this one.
> > 
> > thanks for any help
> > -Paulo
> > 
> > ------------------------
> > http://powlow.com 
> > _______________________________________________
> > SunHELP maillist  -  SunHELP at sunhelp.org 
> > http://www.sunhelp.org/mailman/listinfo/sunhelp 
> _______________________________________________
> SunHELP maillist  -  SunHELP at sunhelp.org 
> http://www.sunhelp.org/mailman/listinfo/sunhelp
> 
> 
> NOTE: This e-mail message may contain information that may be privileged, 
> confidential, and exempt from disclosure.  It is intended for use only by 
> the person to whom it is addressed. If you have received this message in 
> error, please do not forward or use this information in any way,
delete it 
> immediately, and contact the sender as soon as possible by the reply
option
> or by telephone at the telephone number listed (if available).  Thank you.
> _______________________________________________
> SunHELP maillist  -  SunHELP at sunhelp.org
> http://www.sunhelp.org/mailman/listinfo/sunhelp
> 
> 

-----------------
http://powlow.com