Table of Contents
LPAR Removal
This page details the removal of an LPAR and the deletion of the associated filesystems, LUNS and VIO mappings.
Information required.
LPAR Name webdb Frame Server-9119-595-2-SN83627FE LPAR partition id 43 (2Bh) Vio servers b0022-vios1sp, b0022-vios2sp Scsi adapter number Adapter 40 Volume groups rootvg, rootvgm, webdb_flashvg
LPAR work
Find out LPAR partition id eg. 43 == web_db (43d = 2Bh)
List Volume Groups, usually rootvg, rootvgm and application specific VG's. It would be usual for these to be created from one LUN each.
VIO Remove VTD device
Find out vhost number:-
$ lsdev -virtual |grep vhost |awk {'print $1'} |while read v
do
lsmap -vadapter $v |grep $v
done
...edited...
vhost37 U9119.595.83627FE-V4-C40 0x0000002b
Find out all the mappings:-
$ lsmap -all | grep webdb VTD webdb_flashrec VTD webdb_rootvg VTD webdb_rootvgm $
Find out the disk backing devices:-
$ lsmap -all | grep -p webdb_rootvg VTD webdb_rootvg Status Available LUN 0x8100000000000000 Backing device hdisk136 Physloc U5791.001.99B0GMF-P1-C02-T1-W50050768011038B1-LB1000000000000 VTD webdb_rootvgm Status Available LUN 0x8200000000000000 Backing device hdisk333 Physloc U5791.001.99B0GMF-P1-C02-T1-W50050768011038B1-LB2000000000000 $
Then on each VIO server remove the VTD device (LUN name) & the backing device.
rmvdev -vtd webdb_flashrec
Remove the associated hdisks:-
$ lsmap -all | grep -p webdb_rootvg VTD webdb_rootvg Status Available LUN 0x8100000000000000 Backing device hdisk136 Physloc U5791.001.99B0GMF-P1-C02-T1-W50050768011038B1-LB1000000000000 VTD webdb_rootvgm Status Available LUN 0x8200000000000000 Backing device hdisk333 Physloc U5791.001.99B0GMF-P1-C02-T1-W50050768011038B1-LB2000000000000 $ rmvdev -vtd webdb_rootvg webdb_rootvg deleted $ rmvdev -vtd webdb_rootvgm webdb_rootvgm deleted $ rmdev -dev hdisk136 hdisk136 deleted $ rmdev -dev hdisk333 hdisk333 deleted $
Also remove the vhost device, this is the odd one out, one would expect it to be a rmvdev, but it an rmdev:-
$ rmdev -dev vhost37 vhost37 deleted $
In the HMC GUI, delete the profile entry for the virtual scsi adapter, and also DLPAR it out.
SVC work
On the appropriate nim server. the luns presented to VIO for SVC need deleting.
bash-3.00# ssh admin@SVC2 svcinfo lshostvdiskmap | grep webdb 0 B0038_VIOS1SP 77 88 webdb_rootvg 10000000C95F9B21 60050768019201D9B00000000000026F 0 B0038_VIOS1SP 78 182 webdb_rootvgm 10000000C95F9B21 60050768019201D9B000000000000270 0 B0038_VIOS1SP 80 178 webdb_flashrec 10000000C95F9B21 60050768019201D9B000000000000274 1 B0038_VIOS2SP 77 88 webdb_rootvg 10000000C9603CE3 60050768019201D9B00000000000026F 1 B0038_VIOS2SP 78 182 webdb_rootvgm 10000000C9603CE3 60050768019201D9B000000000000270 1 B0038_VIOS2SP 80 178 webdb_flashrec 10000000C9603CE3 60050768019201D9B000000000000274 4 B0022_VIOS1SP 176 178 webdb_flashrec 10000000C95AAF4B 60050768019201D9B000000000000274 4 B0022_VIOS1SP 177 88 webdb_rootvg 10000000C95AAF4B 60050768019201D9B00000000000026F 4 B0022_VIOS1SP 178 182 webdb_rootvgm 10000000C95AAF4B 60050768019201D9B000000000000270 5 B0022_VIOS2SP 176 178 webdb_flashrec 10000000C95A8BE1 60050768019201D9B000000000000274 5 B0022_VIOS2SP 177 88 webdb_rootvg 10000000C95A8BE1 60050768019201D9B00000000000026F 5 B0022_VIOS2SP 178 182 webdb_rootvgm 10000000C95A8BE1 60050768019201D9B000000000000270 bash-3.00#
Run script appropriate for the VIO server:-
bash-3.00# ./rmmaptoviosB22P.ksh webdb_flashrec bash-3.00#
Delete the vdisks…..
LPAR work (2)
To finish off, delete the LPAR profile. This will free up the used CPU and memory back to the frame.
