AIX alt disk install

Create an alt_disk_install copy of rootvg (3x mirror)

1. # syncvg -v rootvg
2. # unmirrorvg rootvg <hdisk #>
3. # reducevg rootvg <hdisk #>
4. # chpv -c <hdisk #>
5. # chvg -Qn rootvg
6. # bosboot -ad <hdisk0>
7. # bootlist -m normal <hdisk0>
8. Use either alt_disk_install or alt_disk_copy

   # alt_disk_install -C -B -V <removed hdisk#>

   # alt_disk_copy -d <removed hdisk#> -B -V

9. # syncvg -v rootvg
10. Mirror rootvg:
    1. Using mirrorvg to automatically create copies:
       1. # mirrorvg -S rootvg hdisk1
    2. Manually create logical volumes if mirrorvg fails:
       1. # mklvcopy <lv name> 2 hdisk1
11. # syncvg -v rootvg
12. # bosboot -ad hdisk0
13. # bosboot -ad hdisk1
14. # bootlist -m normal hdisk0 hdisk1
15. Verify the bootlist contains hdisk0 and hdisk1

    # bootlist -m normal -o

Remove the altinst_rootvg (3x Mirror)

1. Use either the alt_rootvg_op or alt_disk_install to remove the alternate rootvg.
   1. # alt_rootvg_op -X altinst_rootvg
   2. # alt_disk_install -X altinst_rootvg
2. # extendvg -f rootvg <hdisk#>
3. # mirrorvg -c3 rootvg <hdisk#>
4. # bosboot -ad hdisk0
5. # bosboot -ad hdisk1
6. # bosboot -ad hdisk#
7. # bootlist -m normal hdisk0 hdisk1 hdisk#
8. Verify the bootlist contains hdisk0 and hdisk1
   1. # bootlist -m normal -o

Boot to altinst_rootvg

1. # bootlist -m normal <hdisk containing altinst_rootvg
2. # shutdown -r now

Further Reading

1. IBM pSeries and AIX Information Center