volrootmir - Creates mirror of areas necessary for booting
on a new disk
/usr/sbin/volrootmir [-a] [nconfig=count] [swap=target_disk]
target_disk
Specifies that all volumes relating to the boot disk be
mirrored, not just the root and swap volumes, rootvol and
swapvol. Specifies the number of log copies and copies of
the configuration database; for example, nconfig=2. Specifies
that the swap volume, swapvol, be mirrored on a separate
disk, specified by target_disk.
The volrootmir script creates a copy of all areas involved
in booting on the specified target disk and adds those
copies as mirrors to the relevant system volumes.
When used without the -a option, volrootmir adds mirrors
to the root and swap volumes only (does not mirror the
volume for /usr or /var) and allocates them on the new
disk. In addition, all disk regions required for booting
are set up and partitions for the new volume mirrors are
created.
When used with the -a option, volrootmir mirrors all inuse
partitions on the system disk.
To mirror a swap volume that is on a separate disk from
the root volume, use the swap operand to specify a separate
target for the swap mirror.
You can run this script from the voldiskadm menu by choosing
the Mirror volumes on a disk operation.
The volrootmir command is not supported in a cluster.
The specified target disk for mirroring the boot disk:
Must not be under LSM control Must have a disk label with
all partitions marked unused Must be as large as the partitions
(on the boot disk) being mirrored plus the size of
the private region (4096 blocks).
If the swap partition is on a different disk than the boot
disk, to mirror swap you need an additional disk that: Is
not under LSM control Has a disk label with all partitions
marked unused Is at least as large as the swap space partition
plus the size of the private region (4096 blocks)
Specify a disk (not a partition) as the target for mirroring
a swap volume, if the swap volume is on a separate
disk.
The following command adds mirrors for the rootvol and
swapvol volumes on the target disk, dsk3. This command
will fail if swapvol is on a different disk from rootvol.
# volrootmir dsk3 The following command adds mirrors
for rootvol, swapvol, and any other volumes on
the root disk on the target disk, dsk3. This command
will fail if swapvol is on a different disk
from rootvol.
# volrootmir -a dsk3 The following command adds
mirrors for rootvol on disk dsk3, swapvol on disk
dsk7, and any other volumes on the root disk on
disk dsk3. This command will fail if swapvol is on
the same disk as rootvol.
# volrootmir -a swap=dsk7 dsk3 The following command
adds mirrors for rootvol on disk dsk3 and
swapvol on disk dsk7. This command will fail if
swapvol is on the same disk as rootvol.
# volrootmir swap=dsk7 dsk3
Commands: voldiskadm(8)
Other: volintro(8)
volrootmir(8)
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