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Operating Systems Solaris Help with mirroring rootdisk under veritas and boot from the mirror Post 302775025 by mprasamsa on Monday 4th of March 2013 02:36:56 AM
Old 03-04-2013
Sun Help with mirroring rootdisk under veritas and boot from the mirror

Hi All,

We are using Solaris 10 x86, and Veritas Storage Foundation Software version 6.0.1 and faced the following issues after mirroring and during boot from mirror.

1) VTOC has been changed after mirroring the rootdisk with this command - " /opt/VRTS/bin/vxrootmir <disk to be mirrored>".

Before mirroring, VTOC o/p:

Code:
# prtvtoc 
*                          First     Sector    Last
* Partition  Tag  Flags    Sector     Count    Sector  Mount Directory
       0      2    00    1076355  13687380  14763734
       1      3    01      96390    979965   1076354
       2      5    00          0  51150960  51150959
       3     14    01      96390  51054570  51150959
       4     15    01      16065     80325     96389
       7      8    00   14763735  36387225  51150959
       8      1    01          0     16065     16064

After mirroring, VTOC o/p:

Code:
 # prtvtoc 
*                          First     Sector    Last
* Partition  Tag  Flags    Sector     Count    Sector  Mount Directory
       0      2    00     112455  13687380  13799834
       2      5    01          0  51167025  51167024
       3     15    01      16065     96390    112454
       4     14    01     112455  51054570  51167024
       8      1    01          0     16065     16064

Questions :-

a) Why VTOC is changing after mirroring with "vxrootmir" but not with "vxrootadm" utility?
b) Can we use "vxmirror" to mirror the rootdisk properly?


2) Unable to boot from mirror disk, failed with the following processess,
a) Added the entry in GRUB and updated the boot-archive
b) Booted from failsafe and No OS instances were found to mount

Can anyone explain the exact process of booting from mirror disk?


Thanks in Advance.
 

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install-solaris(1M)													       install-solaris(1M)

NAME
install-solaris - install the Solaris operating system SYNOPSIS
install-solaris install-solaris invokes the Solaris Install program. Depending on graphical capability and available memory at the time of invocation, install-solaris invokes either a text-based installer or a graphical installer. The following minimum requirements for physical memory dictate which features are available during installation: For SPARC machines: 128 MB Minimum physical memory for all installation types 128 MB Minimum physical memory required for windowing system 384 MB Minimum physical memory required for graphical-based installation For x86 machines: 256 MB Minimum physical memory for all installation types 256 MB Minimum physical memory required for windowing system 512 MB Minimum physical memory required for graphical-based installation In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number of fea- tures available. install-solaris exists only on the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the for more details. install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the installation media. Refer to the for disk space requirements. Refer to the for more information on the various menus and selections. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcdrom (Solaris instal- | | |lation media) | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ pkginfo(1), install(1M), pkgadd(1M), attributes(5) It is advisable to exit install-solaris by means of the exit options in the install-solaris menus. 23 Sep 2005 install-solaris(1M)
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