How to Remove Logical Domains and Services ? Oracle VM for SPARC

Destroying the infrastructure is a easy task in all the environments.In oracle VM for SPARC also ,you can  easily remove the guest domains in few seconds. The same way you can also remove the virtual disk resources and virtual network resources. In some cases you may not able to remove the resources if its in use or already bound to any guest domains. In this article ,we will see how to remove the guest domains and how to remove the virtual services like vds and vswitch.

Oracle VM for SPARC Tutorial:
[checklist]

• Installation and Configuring the Primary domain
• Creating Guest Domains
• Configuring I/O Domain
• Dynamically adding/removing Resources
• Live Migration for Guest Domains
• Adding ISO image to Multiple Guests
• Configuration Backup & Restore
• Removing the LDOM and Services (You Are Here)

[/checklist]

1. Login to the control domain and list the available domains.

-bash-3.2# ldm ls-domain
NAME             STATE      FLAGS   CONS    VCPU  MEMORY   UTIL  UPTIME
primary          active     -n-cv-  SP      14    4128M    0.2%  8h 7m
ldom2            active     -t----  5000    2     6G        50%  4m
ldom2clone       active     -n----  5001    8     8G       0.1%  7h 26m

2.Halt the domain by logging in to the guest domain operating system. (init 5) . You can also perform the force shutdown from the control domain using the below command.

-bash-3.2# ldm stop-domain ldom2clone
LDom ldom2clone stopped

3.Un-bind the domain from the hypervisor.

-bash-3.2# ldm unbind-domain ldom2clone
-bash-3.2# ldm ls-domain
NAME             STATE      FLAGS   CONS    VCPU  MEMORY   UTIL  UPTIME
primary          active     -n-cv-  SP      14    4128M    6.8%  8h 8m
ldom2            active     -t----  5000    2     6G        50%  5m
ldom2clone       inactive   ------          8     8G
-bash-3.2#

4.Now you can remove the inactive guest domain from the hypervisor.

-bash-3.2# ldm remove-domain ldom2clone
-bash-3.2# ldm ls-domain
NAME             STATE      FLAGS   CONS    VCPU  MEMORY   UTIL  UPTIME
primary          active     -n-cv-  SP      14    4128M    0.2%  8h 10m
ldom2            active     -t----  5000    2     6G        50%  7m
-bash-3.2#

You can see ldom2clone has been removed from the hypervisor completely.

If you want to remove the specific resources from the guest domain,follow the below steps.

1. List the bounded resources for one of the guest domain. (ldom2)

-bash-3.2# ldm list-bindings ldom2
NAME             STATE      FLAGS   CONS    VCPU  MEMORY   UTIL  UPTIME
ldom2            active     -t----  5000    2     6G        50%  8m

UUID
    f2aa98a4-ddae-6d93-948f-9e2e9e81ff40

MAC
    00:14:4f:fb:b6:94

HOSTID
    0x84fbb694

CONTROL
    failure-policy=ignore

DEPENDENCY
    master=

CORE
    CID    CPUSET
    1      (8, 9)

VCPU
    VID    PID    CID    UTIL STRAND
    0      8      1      100%   100%
    1      9      1      0.0%   100%

MEMORY
    RA               PA               SIZE
    0x10000000       0x10000000       4G
    0x480000000      0x390000000      2G

VARIABLES
    auto-boot?=false
    boot-device=disk:a disk net
    keyboard-layout=US-English

NETWORK
    NAME             SERVICE                     ID   DEVICE     MAC               MODE   PVID VID                  MTU   LINKPROP
    vnet0            primary-vds0@primary        0    network@0  00:14:4f:f9:53:57        1                         1500
        PEER                        MAC               MODE   PVID VID                  MTU   LINKPROP
        primary-vds0@primary        00:14:4f:fb:e2:f3        1                         1500

DISK
    NAME             VOLUME                      TOUT ID   DEVICE  SERVER         MPGROUP
    vdisk1_dom2      vol1@primary-vds0                1    disk@1  primary
    iso_ldom2        iso0@primary-vds0                2    disk@2  primary
    uavdisk          uavol1@primary-vds0              0    disk@0  primary

VCONS
    NAME             SERVICE                     PORT
    ldom2            primary-vcc0@primary        5000

2.Try to remove the one of the virtual disk resource from the guest domain.

-bash-3.2# ldm remove-vdisk uavdisk  ldom2
Please perform the operation while the LDom is bound or inactive
-bash-3.2# ldm remove-vdisk -f uavdisk  ldom2
Please perform the operation while the LDom is bound or inactive

You are not able to remove the virtual disk since its in use on ldom2.

3.You can stop the guest domain and then remove it .

-bash-3.2# ldm stop-domain ldom2
LDom ldom2 stopped
-bash-3.2# ldm remove-vdisk uavdisk  ldom2
-bash-3.2#
-bash-3.2# ldm list-bindings ldom2
NAME             STATE      FLAGS   CONS    VCPU  MEMORY   UTIL  UPTIME
ldom2            bound      ------  5000    2     6G

UUID
    f2aa98a4-ddae-6d93-948f-9e2e9e81ff40

MAC
    00:14:4f:fb:b6:94

HOSTID
    0x84fbb694

CONTROL
    failure-policy=ignore

DEPENDENCY
    master=

CORE
    CID    CPUSET
    1      (8, 9)

VCPU
    VID    PID    CID    UTIL STRAND
    0      8      1             100%
    1      9      1             100%

MEMORY
    RA               PA               SIZE
    0x10000000       0x10000000       4G
    0x480000000      0x390000000      2G

VARIABLES
    auto-boot?=false
    boot-device=disk:a disk net
    keyboard-layout=US-English

NETWORK
    NAME             SERVICE                     ID   DEVICE     MAC               MODE   PVID VID                  MTU   LINKPROP
    vnet0            primary-vds0@primary        0    network@0  00:14:4f:f9:53:57        1                         1500
        PEER                        MAC               MODE   PVID VID                  MTU   LINKPROP
        primary-vds0@primary        00:14:4f:fb:e2:f3        1                         1500

DISK
    NAME             VOLUME                      TOUT ID   DEVICE  SERVER         MPGROUP
    vdisk1_dom2      vol1@primary-vds0                1    disk@1  primary
    iso_ldom2        iso0@primary-vds0                2    disk@2  primary

VCONS
    NAME             SERVICE                     PORT
    ldom2            primary-vcc0@primary        5000

-bash-3.2#

4. Removing the devices from the vds service

-bash-3.2# ldm list-services
VCC
    NAME             LDOM             PORT-RANGE
    primary-vcc0     primary          5000-5100

VSW
    NAME             LDOM             MAC               NET-DEV   ID   DEVICE     LINKPROP   DEFAULT-VLAN-ID PVID VID                  MTU   MODE
    primary-vds0     primary          00:14:4f:fb:e2:f3 nxge0     0    switch@0              1               1                         1500  
    primary-vsw0     primary          00:14:4f:fa:bf:27 nxge1     1    switch@1              1               1                         1500  

VDS
    NAME             LDOM             VOLUME         OPTIONS          MPGROUP        DEVICE
    primary-vds0     primary          vol1                                       /dev/zvol/dsk/pool1/vol1
                                      iso0                                       /export/home/sol-10-u10-ga2-sparc-dvd.iso
                                      clonevol1                                      /dev/zvol/dsk/pool1/clonevol1
                                      vol0                                  /dev/dsk/c3t600144F0B8E706DA00005300F4270004d0s2
                                      vol2                                  /dev/dsk/c3t600144F0C1135B490000530383D70006d0
                                      uavol1                                /dev/zvol/dsk/pool1/uavol1

-bash-3.2# ldm remove-vdsdev uavol1@primary-vds0
-bash-3.2# ldm list-services
VCC
    NAME             LDOM             PORT-RANGE
    primary-vcc0     primary          5000-5100

VSW
    NAME             LDOM             MAC               NET-DEV   ID   DEVICE     LINKPROP   DEFAULT-VLAN-ID PVID VID                  MTU   MODE
    primary-vds0     primary          00:14:4f:fb:e2:f3 nxge0     0    switch@0              1               1                         1500  
    primary-vsw0     primary          00:14:4f:fa:bf:27 nxge1     1    switch@1              1               1                         1500  

VDS
    NAME             LDOM             VOLUME         OPTIONS          MPGROUP        DEVICE
    primary-vds0     primary          vol1                             /dev/zvol/dsk/pool1/vol1
                                      iso0                             /export/home/sol-10-u10-ga2-sparc-dvd.iso
                                      clonevol1                        /dev/zvol/dsk/pool1/clonevol1
                                      vol0                             /dev/dsk/c3t600144F0B8E706DA00005300F4270004d0s2
                                      vol2                             /dev/dsk/c3t600144F0C1135B490000530383D70006d0

-bash-3.2#

We have seen how to remove the assigned virtual disk from the guest and removing the disk from the virtual disk server.

Now we will see how to remove the complete service from the service domain aka primary domain.
1.Try to remove the virtual switch service from service domain

-bash-3.2# ldm remove-vsw primary-vds0
Service is active and being used by bound client(s)
Failed to remove virtual switch

2.The above command failed because,that virtual service is used for some of the guest domains. First remove the those assigned virtual resources from guest domain the n try to remove it.

-bash-3.2# ldm remove-vsw primary-vsw0
-bash-3.2# ldm list-services
VCC
    NAME             LDOM             PORT-RANGE
    primary-vcc0     primary          5000-5100

VSW
    NAME             LDOM             MAC               NET-DEV   ID   DEVICE     LINKPROP   DEFAULT-VLAN-ID PVID VID                  MTU   MODE
    primary-vds0     primary          00:14:4f:fb:e2:f3 nxge0     0    switch@0              1               1                         1500  

VDS
    NAME             LDOM             VOLUME         OPTIONS          MPGROUP        DEVICE
    primary-vds0     primary          vol1                                           /dev/zvol/dsk/pool1/vol1
                                      iso0                                           /export/home/sol-10-u10-ga2-sparc-dvd.iso
                                      clonevol1                 /dev/zvol/dsk/pool1/clonevol1
                                      vol0                      /dev/dsk/c3t600144F0B8E706DA00005300F4270004d0s2
                                      vol2                      /dev/dsk/c3t600144F0C1135B490000530383D70006d0

Using the same setup commands (showed in this article), you can remove the other guest domains and virtual services.

Once you have cleared the all services and domains, you can uninstall the oracle VM for SPARC software using below method.

bash-3.2# pkgrm SUNWldm

The following package is currently installed:
   SUNWldm  LDoms Manager software
            (sparc.sun4v) 2.0,REV=2010.09.02.10.08

Do you want to remove this package? [y,n,?,q] y

## Removing installed package instance 

This package contains scripts which will be executed with super-user
permission during the process of removing this package.

Do you want to continue with the removal of this package [y,n,?,q] y
## Verifying package  dependencies in global zone
## Processing package information.
## Removing pathnames in class 
Waiting up to 60 seconds for svc:/ldoms/ldmd:default to stop...
## Removing pathnames in class 
/var/svc/manifest/platform/sun4v 
/var/svc/manifest/platform 
/var/svc/manifest 
/var/svc 
<<<<<<<<
>>>>
/opt/SUNWldm/bin/schemas/ovf-strings.xsd
/opt/SUNWldm/bin/schemas/ovf-section.xsd
/opt/SUNWldm/bin/schemas/ovf-envelope.xsd
/opt/SUNWldm/bin/schemas/ovf-core.xsd
/opt/SUNWldm/bin/schemas/ldmd-property.xsd
/opt/SUNWldm/bin/schemas/ldmd-binding.xsd
/opt/SUNWldm/bin/schemas/event-v3.xsd
/opt/SUNWldm/bin/schemas/combined-v3.xsd
/opt/SUNWldm/bin/schemas/cli-list-constraint-v3.xsd
/opt/SUNWldm/bin/schemas/cim-vssd.xsd
/opt/SUNWldm/bin/schemas/cim-rasd.xsd
/opt/SUNWldm/bin/schemas/cim-common.xsd
/opt/SUNWldm/bin/schemas
/opt/SUNWldm/bin/ldmd_start
/opt/SUNWldm/bin/ldmd
/opt/SUNWldm/bin/ldmconfig
/opt/SUNWldm/bin/ldm
/opt/SUNWldm/bin
/opt/SUNWldm
/opt 
## Updating system information.

Removal of  was successful.
bash-3.2# pkgrm SUNWldomu

The following package is currently installed:
   SUNWldomu  Solaris Logical Domains (Usr)
              (sparc.sun4v) 11.10.0,REV=2006.08.08.12.13

Do you want to remove this package? [y,n,?,q] y

## Removing installed package instance 
## Verifying package  dependencies in global zone
## Processing package information.
## Removing pathnames in class 
/usr/lib/sparcv9/libpri.so.1
/usr/lib/sparcv9/libds.so.1
/usr/lib/sparcv9 
/usr/lib/libpri.so.1
/usr/lib/libds.so.1
/usr/lib/ldoms/vntsd
/usr/lib/ldoms/ldmad
/usr/lib/ldoms/drd
/usr/lib/ldoms
/usr/lib 
/usr 
## Updating system information.

Removal of  was successful.
bash-3.2# pkgrm SUNWldomr

The following package is currently installed:
   SUNWldomr  Solaris Logical Domains (Root)
              (sparc.sun4v) 11.10.0,REV=2006.10.04.00.26

Do you want to remove this package? [y,n,?,q] y

## Removing installed package instance 

This package contains scripts which will be executed with super-user
permission during the process of removing this package.

Do you want to continue with the removal of this package [y,n,?,q] y
## Verifying package  dependencies in global zone
## Processing package information.
## Executing preremove script.
## Removing pathnames in class 
Waiting up to 60 seconds for svc:/ldoms/vntsd:default to stop...
Waiting up to 60 seconds for svc:/ldoms/agents:default to stop...
Waiting up to 60 seconds for svc:/platform/sun4v/drd:default to stop...
## Removing pathnames in class 
/var/svc/manifest/platform/sun4v 
/var/svc/manifest/platform 
/var/svc/manifest 
/var/svc 
/var 
/platform/sun4v/kernel/misc/sparcv9/platsvc
/platform/sun4v/kernel/misc/sparcv9/ldc
/platform/sun4v/kernel/misc/sparcv9/fault_iso
/platform/sun4v/kernel/misc/sparcv9/ds
/platform/sun4v/kernel/misc/sparcv9/dr_mem
/platform/sun4v/kernel/misc/sparcv9/dr_io
/platform/sun4v/kernel/misc/sparcv9/dr_cpu
/platform/sun4v/kernel/misc/sparcv9 
/platform/sun4v/kernel/misc 
/platform/sun4v/kernel/drv/sparcv9/vsw
/platform/sun4v/kernel/drv/sparcv9/vnet
/platform/sun4v/kernel/drv/sparcv9/vlds
/platform/sun4v/kernel/drv/sparcv9/vldc
/platform/sun4v/kernel/drv/sparcv9/vds
/platform/sun4v/kernel/drv/sparcv9/vdc
/platform/sun4v/kernel/drv/sparcv9/vcc
/platform/sun4v/kernel/drv/sparcv9/ds_snmp
/platform/sun4v/kernel/drv/sparcv9/ds_pri
/platform/sun4v/kernel/drv/sparcv9/drctl
/platform/sun4v/kernel/drv/sparcv9/cnex
/platform/sun4v/kernel/drv/sparcv9 
/platform/sun4v/kernel/drv/ds_snmp.conf
/platform/sun4v/kernel/drv/ds_pri.conf
/platform/sun4v/kernel/drv/drctl.conf
/platform/sun4v/kernel/drv 
/platform/sun4v/kernel 
/platform/sun4v 
/platform 
/lib/svc/method/svc-vntsd
/lib/svc/method/svc-drd
/lib/svc/method/ldoms-agents
/lib/svc/method 
/lib/svc 
/lib 
## Updating system information.

Removal of  was successful.
bash-3.2# pkginfo | grep -i ldom
application SUNWldmp2v                       LDoms P2V tool
bash-3.2# pkgrm SUNWldmp2v

The following package is currently installed:
   SUNWldmp2v  LDoms P2V tool
               (sparc) 2.0,REV=2010.09.02.10.08

Do you want to remove this package? [y,n,?,q] y

## Removing installed package instance 

This package contains scripts which will be executed with super-user
permission during the process of removing this package.

Do you want to continue with the removal of this package [y,n,?,q] y
## Verifying package  dependencies in global zone
## Processing package information.
## Removing pathnames in class 
## Removing pathnames in class 
/usr/share/man/man1m/ldmp2v.1m
/usr/share/man/man1m 
/usr/share/man 
/usr/share 
/usr/sbin/ldmp2v
/usr/sbin 
/usr 
/opt/SUNWldmp2v/man/man1m/ldmp2v.1m
/opt/SUNWldmp2v/man/man1m
/opt/SUNWldmp2v/man
/opt/SUNWldmp2v/lib/ldmp2v_convert
/opt/SUNWldmp2v/lib
/opt/SUNWldmp2v/etc/ldmp2v.conf.sample
/opt/SUNWldmp2v/etc
/opt/SUNWldmp2v/bin/ldmp2v_prepare
/opt/SUNWldmp2v/bin
/opt/SUNWldmp2v
/opt 
## Updating system information.

Removal of  was successful.
bash-3.2# pkginfo | grep -i ldom*
bash-3.2# pkginfo | grep -i ldm*
bash-3.2#

You have successfully uninstall the oracle VM for SPARC software. You can safely recycle the control domain to remove the complete ldom stuffs.

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