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Full Discussion: Backup root disks
Operating Systems Solaris Backup root disks Post 302831505 by hicksd8 on Thursday 11th of July 2013 05:17:33 AM
Old 07-11-2013
Right then. Create a NFS share from the other box and mount it on this one.

Then use

Code:
 
fssnap

command to snapshot the root filesysytem, and then

Code:
 
ufsdump

command giving the remote NFS as the target for the dump. Job done.

Remember to delete the snapshot afterwards.
(You could script all this stuff.)

If you need to restore after a crash, boot from cd into single user, manually plumb, set ip address and mask, and 'up' the network interface, mount the remote NFS, 'newfs' your local root filesysytem, and ufsrestore the whole thing.

Obviously I don't know your experience level and the above may be too brief. Any questions just ask.

EXTRA NOTE: When you execute 'fssnap' this will output a special device name for the snapshot. This is the device you put in the ufsdump command line (NOT /dev/dsk/c0t0d0s0 or /). This special device reads the frozen snapshot of the filesysytem.

Last edited by hicksd8; 07-11-2013 at 06:26 AM..
 

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volunroot(8)						      System Manager's Manual						      volunroot(8)

NAME
volunroot - Remove Logical Storage Manager hooks for rootable volumes SYNOPSIS
/usr/sbin/volunroot [-a | -A] OPTIONS
Specifies that all volumes on the system disk be converted back to UNIX disk partitions, not just the root and swap volumes, rootvol and swapvol. Forces removal of the private region unless it is the last one in the system. DESCRIPTION
The volunroot script can be used to restore the accessibility of the root, swap, and other file systems on the boot disk directly through disk partitions instead of through volume devices. The script also removes other changes that were made to enable booting of the system from the root volume, so that the system will boot with no dependency on the Logical Storage Manager. When used with no options, volunroot affects only the root and swap volumes, rootvol and swapvol. For volunroot to work properly, only one plex must exist for each of the affected volumes. This plex must be the one created by volrootmir or the original plex created when the root disk was encapsulated. This ensures that the underlying subdisks will have equivalent partitions defined for them on the disk. If these conditions are not met, the volunroot operation fails and none of the volumes are converted to disk partitions. The unwanted plexes can be removed using either voledit or volplex. SEE ALSO
volencap(8), voldiskadm(8), voledit(8), volintro(8), volplex(8), volrootmir(8) volunroot(8)
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