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 vxrootmir(1M)			  VxVM 3.5		       vxrootmir(1M)
				 1 Jun 2002



 NAME
      vxrootmir - create a mirror of a VERITAS Volume Manager root disk

 SYNOPSIS
      /etc/vx/bin/vxrootmir [-v] [-b] [-t tasktag] [-R]
	   [-p Pool_1,Pool_2,...] daname | dmname

 DESCRIPTION
      The vxrootmir command creates mirrors of all of the volumes on a
      VERITAS Volume Manager (VxVM) rootable boot disk, and makes the new
      disk bootable.

      The disk to be used as a mirror can be specified either by its VM disk
      name, dmname (disk media name), or by its device name, daname (disk
      access name).

      If a disk media name is specified, it is validated to make sure that
      it exists and that it has been properly initialized.  This validation
      includes making sure that the private region is at the same location
      and has the same length as the private region on the primary root
      disk, and that the sum of the lengths of all of the subdisks located
      on the primary root disk will fit within the available space in the
      public region of the specified disk.

      If a disk access name is specified, it is validated to make sure it
      exists and is not in use, and that the total length of all the
      subdisks on the primary root disk will fit within the public region.
      The disk is then initialized to contain a private region with the same
      offset and length as the private region on the primary root disk.	 A
      new disk media name is assigned to the disk formed from the prefix
      rootdisk followed by the next available number (for example,
      rootdisk02, rootdisk03, and so on).

      All volumes that have a subdisk on the primary VxVM root disk are
      mirrored on the specified disk. When the root volume (rootvol) is
      mirrored, the vxassist command executes vxbootsetup to set up the new
      disk as a boot disk.

      The -p option allows you to mirror the volumes on the root disk as
      stripe columns across several disks.  The argument to this option is a
      list of disks that are to be used for the stripe column mirrors.	If
      not enough disks are specified, vxrootmir prints a message to the
      standard error output, including information on how many disks are
      required, and then exits.	 When initialized for VxVM use, these stripe
      column disks are named with the prefix rootaux followed by the next
      available number (for example, rootaux01, rootaux02, and so on).

 OPTIONS
      -b	If the system was booted from the VxVM root disk that is
		being mirrored, this option uses the setboot command to set
		the alternate boot disk to the specified mirror. If the



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 vxrootmir(1M)			  VxVM 3.5		       vxrootmir(1M)
				 1 Jun 2002



		system was booted from another root disk (such as an LVM
		root disk), an alternate root disk is not set. If the -v
		option is also specified, information is displayed on the
		current setboot settings, and on whether the alternate boot
		disk is set to the specified mirror.

      -p Pool_1,Pool_2,...
		Specifies the disks that are to be used for stripe column
		targets when mirroring the VxVM root disk.  The disks can be
		specified either as disk access names, or as disk media
		names if they have previously been initialized for use with
		VxVM.  If specified as disk access names, the disks are
		checked for existence, correct size, and availability for
		use.

      -R	Indicates that only the volumes required to boot
		successfully from the new mirror are to be mirrored.  This
		is essentially the same behavior that would occur in the
		absence of a full license.

      -t tasktag
		Marks any tasks that are registered to track the progress of
		an  operation with the tag tasktag.  This option is passed
		to vxassist when mirroring volumes, so any child tasks	are
		also tagged with tasktag.

      -v	Displays verbose output including timestamps for operations
		in progress.  This option is useful as mirroring large
		volumes can take a long time.

 ARGUMENTS
      daname	Specifies the disk to be used as a mirror by its disk access
		name (such as c0t2d0).

      dmname	Specifies the disk to be used as a mirror by its disk media
		name (such as rootdisk03).

 EXAMPLES
      This example shows the vxrootmir command being invoked in its
      simpliest form:

      /etc/vx/bin/vxrootmir c5t1d0


      The next example shows how to use the -R option with vxrootmir.  This
      demonstrates how mirroring appears in the absence of a full license:

      # /etc/vx/bin/vxrootmir -v -b -R c5t10d0
      vxrootmir: 10:10:
	Gathering information on the current VxVM root configuration
      vxrootmir: 10:10: Checking specified disk(s) for usability



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 vxrootmir(1M)			  VxVM 3.5		       vxrootmir(1M)
				 1 Jun 2002



      vxrootmir: 10:10: Preparing disk c5t10d0 as a VxVM disk
      vxrootmir: 10:10: Adding disk c5t10d0 to rootdg as rootdisk02
      vxrootmir: 10:10: Mirroring only volumes required for root mirror boot
      vxrootmir: 10:10: Mirroring volume standvol
      vxrootmir: 10:11: Mirroring volume swapvol
      vxrootmir: 10:18: Mirroring volume rootvol
      vxrootmir: 10:20: Current setboot values:
      vxrootmir: 10:20: Primary:      0/4/0/1.11.0
      vxrootmir: 10:20: Alternate:    0/4/0/1.13.0
      vxrootmir: 10:20: Making c5t10d0 (0/4/0/1.10.0) the alternate boot disk
      vxrootmir: 10:20: Disk c5t10d0 is now a mirrored root disk


      The final example shows how to specify a list of disks for use as
      stripe column mirrors:

      # /etc/vx/bin/vxrootmir -v -p c5t11d0,c5t12d0,c5t13d0 c5t10d0
      vxrootmir: 12:11:
	Gathering information on the current VxVM root configuration
      vxrootmir: 12:11: Checking specified disk(s) for usability
      vxrootmir: 12:11: Preparing disk c5t10d0 as a VxVM disk
      vxrootmir: 12:11: Adding disk c5t10d0 to rootdg as rootdisk02
      vxrootmir: 12:11: Preparing disk c5t11d0 as a VxVM disk
      vxrootmir: 12:11: Adding disk c5t11d0 to rootdg as DM rootstpm01
      vxrootmir: 12:11: Preparing disk c5t12d0 as a VxVM disk
      vxrootmir: 12:11: Adding disk c5t12d0 to rootdg as DM rootstpm02
      vxrootmir: 12:11: Preparing disk c5t13d0 as a VxVM disk
      vxrootmir: 12:11: Adding disk c5t13d0 to rootdg as DM rootstpm03
      vxrootmir: 12:11: Mirroring all volumes on root disk
      vxrootmir: 12:11: Mirroring volume standvol
      vxrootmir: 12:12: Mirroring volume swapvol
      vxrootmir: 12:19: Mirroring volume rootvol
      vxrootmir: 12:21: Mirroring volume optvol
      vxrootmir: 12:24: Mirroring volume usrvol
      vxrootmir: 12:27: Mirroring volume homevol
      vxrootmir: 12:28: Mirroring volume tmpvol
      vxrootmir: 12:28: Mirroring volume varvol
      vxrootmir: 12:36: Disk c5t10d0 is now a mirrored root disk


 SEE ALSO
      setboot(1M), vxassist(1M), vxbootsetup(1M), vxintro(1M), vxmirror(1M),
      vxtask(1M)











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