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Full Discussion: Trouble with backup
Operating Systems Solaris Trouble with backup Post 302959763 by dreiak on Thursday 5th of November 2015 08:42:09 PM
Old 11-05-2015
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?
 

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root_archive(1M)														  root_archive(1M)

NAME
root_archive - manage bootable miniroot archives SYNOPSIS
/boot/solaris/bin/root_archive pack archive root /boot/solaris/bin/root_archive unpack archive root /boot/solaris/bin/root_archive packmedia solaris_image root /boot/solaris/bin/root_archive unpackmedia solaris_image root The root_archive utility is used to manage bootable miniroot archives and is currently only available on platforms. The utility can pack and unpack boot/root archives in both ufs and hsfs (iso9660) format. It will always generate ufs archives. root_archive also uses the lofi file driver to export a file as a block device (see lofi(7D)) and mount to mount or unmount file systems and remote resources (see mount(1M)). root_archive requires the same privileges that are needed to run these commands. SUBCOMMANDS
The root_archive command has the following subcommands: pack archive root Pack from the image found under the root directory to the archive. unpack archive root Unpack from the archive to an unpacked image under the root directory. packmedia solaris_image root Pack the solaris image to the root directory. unpackmedia solaris_image root Unpack the solaris image from the root directory. For packmedia and unpackmedia, other items that do not go into the ramdisk image are copied or uncopied (see cpio(1)) as well. Specifi- cally, this includes all the packaging databases needed for pkgadd and the other packaging utilities to succeed which are not used in the running and hence pruned to conserve memory. EXAMPLES
Example 1: Unpacking the Solaris x86 install image The following command unpacks the current Solaris image from the root directory: # root_archive unpackmedia /export/nv/solarisdvd.nvx_dvd/latest /export/Boot Where /export/nv/solarisdvd.nvx_dvd/latest represents a path to a Solaris x86 install image and /export/Boot is a directory that will be purged or created, as necessary. Example 2: Packing the Solaris x86 install image The following command packs the current Solaris image to the root directory: # root_archive packmedia /export/nv/solarisdvd.nvx_dvd/latest /export/Boot The following exit values are returned: 0 The command completed successfully. 1 The command exited due to an error. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |Interface Stability |Stable | +-----------------------------+-----------------------------+ cpio(1), bootadm(1M), mount(1M), attributes(5), lofi(7D) 26 Sep 2005 root_archive(1M)
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