02-09-2012
Are your disks identical?
If strictly identical, there is an option you should try: vgreduce or split the mirror to have only one disk in vg00 then do a dd...
It should boot...
dont forget to turn off the VG_AUTO_ACTIVATE for vg01... for you will need to import the correct definition of the VG (dont know how you will do that though for SAN is not the same...)
My 2 cents:
I would go and boot the system, that will complain (duplicate address) so try to boot single user modify all that is need, ( /etc/lvmtab, fstab etc...) give a new IP and get your network team to create a VLAN so you can use it even if you are the only node in that sublan...
Once OK, activate you mirroring...
Now add vg01 (pvcreate etc...) and create all lvm as on the original.
Either copy or restore (if you backup utility will do such tasks...).
All this should be done at init level2 to be safe with no fancy unwanted overhead.
this sort of manipulation were my daily routine one time, but long, long ago...
An L3000 had at configuration/order time an option at order: you could choose a tape drive OR a DVD internal... If you wanted both you had to choose which device was external.. I had both and believe the internal tape was the best choice...
P.S.
I did also use the mirror, but had some much issues I gave up... the best of all is by far the Ignite tape, since you can start almost a fresh "install" and configure the new box immediately by giving his new name , IP etc...
Ever considered Ignite via LAN?
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LEARN ABOUT NETBSD
lvconvert
LVCONVERT(8) System Manager's Manual LVCONVERT(8)
NAME
lvconvert - convert a logical volume from linear to mirror or snapshot
SYNOPSIS
lvconvert -m|--mirrors Mirrors [--mirrorlog {disk|core}] [--corelog] [-R|--regionsize MirrorLogRegionSize] [-A|--alloc AllocationPolicy]
[-b|--background] [-i|--interval Seconds] [-h|-?|--help] [-v|--verbose] [--version]
LogicalVolume[Path] [PhysicalVolume[Path]...]
lvconvert -s|--snapshot [-c|--chunksize ChunkSize] [-h|-?|--help] [-v|--verbose] [-Z|--zero y|n] [--version]
OriginalLogicalVolume[Path] SnapshotLogicalVolume[Path]
DESCRIPTION
lvconvert will change a linear logical volume to a mirror logical volume or to a snapshot of linear volume and vice versa. It is also used
to add and remove disk logs from mirror devices.
OPTIONS
See lvm for common options.
Exactly one of --mirrors or --snapshot arguments required.
-m, --mirrors Mirrors
Specifies the degree of the mirror you wish to create. For example, "-m 1" would convert the original logical volume to a mirror
volume with 2-sides; that is, a linear volume plus one copy.
--mirrorlog {disk|core}
Specifies the type of log to use. The default is disk, which is persistent and requires a small amount of storage space, usually on
a separate device from the data being mirrored. Core may be useful for short-lived mirrors: It means the mirror is regenerated by
copying the data from the first device again every time the device is activated - perhaps, for example, after every reboot.
--corelog
The optional argument "--corelog" is the same as specifying "--mirrorlog core".
-R, --regionsize MirrorLogRegionSize
A mirror is divided into regions of this size (in MB), and the mirror log uses this granularity to track which regions are in sync.
-b, --background
Run the daemon in the background.
-i, --interval Seconds
Report progress as a percentage at regular intervals.
-s, --snapshot
Create a snapshot from existing logical volume using another existing logical volume as its origin.
-c, --chunksize ChunkSize
Power of 2 chunk size for the snapshot logical volume between 4k and 512k.
-Z, --zero y|n
Controls zeroing of the first KB of data in the snapshot. If the volume is read-only the snapshot will not be zeroed.
Examples
"lvconvert -m1 vg00/lvol1"
converts the linear logical volume "vg00/lvol1" to a two-way mirror logical volume.
"lvconvert --mirrorlog core vg00/lvol1"
converts a mirror with a disk log to a mirror with an in-memory log.
"lvconvert --mirrorlog disk vg00/lvol1"
converts a mirror with an in-memory log to a mirror with a disk log.
"lvconvert -m0 vg00/lvol1"
converts a mirror logical volume to a linear logical volume.
"lvconvert -s vg00/lvol1 vg00/lvol2"
converts logical volume "vg00/lvol2" to snapshot of original volume "vg00/lvol1"
SEE ALSO
lvm(8), vgcreate(8), lvremove(8), lvrename(8), lvextend(8), lvreduce(8), lvdisplay(8), lvscan(8)
Red Hat, Inc LVM TOOLS 2.02.44-cvs (02-17-09) LVCONVERT(8)