Trouble with backup Post: 302959763

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Operating Systems Solaris Trouble with backup Post 302959763 by dreiak on Thursday 5th of November 2015 08:42:09 PM

11-05-2015

Registered User

Trouble with backup

At work I am running a solaris 10 server with a ZFS filesystem. I am unfortunately not a solaris expert by any stretch of the imagination, and the relative difficulty in doing what I consider to be a super basic operation using solaris is driving me insane.

It is my job to figure out some way (or ideally make a script) that will make a complete bootable clone of an entire hard disk from one drive to another.

Drive one is c1t0d0 (bay 0), drive two is c1t1d0 (bay 1).

I must be able to remove the 2nd drive for off site storage, and I must be able to swap the drive in bay 0 with the off site drive and boot the server up completely from the backup.

I have been trying to figure this out for weeks. I tried using raidctr -c c1t0d0 c1t1d0, now I can't boot from either drive. (including when both are inserted). The server will just stick in a looped boot sequence.

I tried using dd commands as well, which appeared to work, but I couldn't boot off the drive. Part of the problem is that I am not a solaris guru, and I am definitely missing something to make this work. dd seemed like the best candidate, as the hard disks are identical. If someone knows that this will work, I need to know EXACTLY what to do, and not approximately.

I am avoiding using snapshots because it sounds so complicated, and though I have seen that it is possible to make a clone from snapshots, it does not sound like I will really get what I am looking for out of this solution, but I am open to anything.

TLDR: How do I get two HDDs to be independently bootable and have exactly the same information on them? Why isn't there some super easy command for this in Solaris?

dreiak

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grub-install

GRUB-INSTALL(8) 					  System Administration Utilities					   GRUB-INSTALL(8)

NAME

       grub-install - install GRUB to a device

SYNOPSIS

       grub-install [OPTION] install_device

DESCRIPTION

       Install GRUB on your drive.

       -h, --help
	      print this message and exit

       -v, --version
	      print the version information and exit

       --modules=MODULES
	      pre-load specified modules MODULES

       --boot-directory=DIR
	      install GRUB images under the directory DIR/grub instead of the /boot/grub directory

       --grub-setup=FILE
	      use FILE as grub-setup

       --grub-mkimage=FILE
	      use FILE as grub-mkimage

       --grub-mkrelpath=FILE
	      use FILE as grub-mkrelpath

       --grub-mkdevicemap=FILE use FILE as grub-mkdevicemap

       --grub-probe=FILE
	      use FILE as grub-probe

       --no-floppy
	      do not probe any floppy drive

       --allow-floppy
	      Make the drive also bootable as floppy (default for fdX devices). May break on some BIOSes.

       --recheck
	      probe a device map even if it already exists

       --force
	      install even if problems are detected

       --disk-module=MODULE
	      disk module to use

       INSTALL_DEVICE can be a GRUB device name or a system device filename.

       grub-install copies GRUB images into /boot/grub, and uses grub-setup to install grub into the boot sector.

REPORTING BUGS

       Report bugs to <bug-grub@gnu.org>.

SEE ALSO

       grub-mkconfig(8), grub-mkimage(1), grub-setup(8), grub-mkrescue(1)

       The full documentation for grub-install is maintained as a Texinfo manual.  If the info and grub-install programs are properly installed at
       your site, the command

	      info grub-install

       should give you access to the complete manual.

grub-install (GRUB) 1.99-12ubuntu5				   October 2011 						   GRUB-INSTALL(8)