Re: Mirroring the root disks when using Jumpstart...

From: Darren Dunham (ddunham_at_redwood.taos.com)
Date: 08/05/03 

Date: Mon, 04 Aug 2003 23:34:03 GMT

Paul Coray <paul.coray@spamblock.unibas.ch> wrote:
> Phil Meyer wrote:
> Speaking of flash archives: I just took snapshots with flar create of
> two Solaris 9 servers, which have their root disks mirorred with
> SDS/LVM. How will those systems behave mirror-wise when doing just a
> plain jumpstart restore off these images? Will they even boot?

My understanding is that they will not.

> What
> files do I have to adjust to reenable the mirror? (/etc/vfstab
> /etc/system /etc/lvm/* ?).

You can't set up mirroring by adjusting files. Mirroring assumes that
there is a valid state replica database on the disks themselves. You
have to create that by running specific commands. It would be possible
to do that in a finish script of some sort.

You can *disable* the need for the mirror by commenting out or removing
the 'rootdev' line in /etc/system, and by modifying /etc/vfstab to mount
the filesystems from the disk slices rather than the logical volumes or
metadevices. 

-- 
Darren Dunham                                           ddunham@taos.com
Unix System Administrator                    Taos - The SysAdmin Company
Got some Dr Pepper?                           San Francisco, CA bay area
         < This line left intentionally blank to confuse you. >

Relevant Pages

  • M4000 jumpstart problem: no disks found
    ... We have two M4000 servers, and we want to install Solaris 10 08/07 on ... Solaris does not find any disks: ...
    (SunManagers)
  • Re: update SOLARIS10 09/05 to 01/06
    ... since you are running servers you should look into the uber-cool "Live ... Upgrade" feature which you may not be able to do now if your disks are ... This is a seriously under-appreciated feature in Solaris. ...
    (comp.unix.solaris)
  • Re: Mirror two A1000 with two (non-cluster) nodes
    ... The servers are equipped with one dual port differential ... independent non-clustered systems synchronize and mirror disks. ... A1000's into so that they 'talk amongst themselves' and do the mirroring ... DeeDee, don't press that button! ...
    (comp.sys.sun.admin)
  • Re: Veritas Volume Manager 3.1 -> 3.5
    ... We to are going from Solaris 2.7 to Solaris ... currently we are using Veritas VM for raid support for our ... internal disks and array. ... upgrading Veritas I let Sun do the mirroring both to the 2 disks in ...
    (comp.unix.solaris)
  • Re: mirroring swap?
    ... >> I have read quite an interesting discussion on mirroring swap in Solaris ... >> slices on both disks, ...
    (comp.unix.solaris)