How to delete/unconfigure ldoms in solaris 11

 How to delete/unconfigure ldoms in solaris 11:

1.       In this example, we are having primary domain and 1 logical domain.

List all the LDOMs which are running on primary domain.

ldm ls

 

2.       Stop all LDOMs which are running.

2.1 to stop all running ldoms; it will bring LDOMs in bound mode

ldm stop-domain -a   

2.2   unbound all the LDOMs

ldm unbind-domain -a

2.3   remove all ldoms and its resources from primary domain

ldm remove-domain -a

3.       List all services:

To list all services which are given from service domain.

ldm list-services

4.       Remove all 3 services:

4.1 Remove vds service

ldm remove-vds primary-vds0

If we directly remove vds service then it will get failed as we can see primary-vds0 disk has been added to LDOM testdb, so remove it first.

 

Below command it will remove forcefully virtual disk service added to any LDOM

ldm remove-vcc primary-vcc0

4.2 Remove vsw0 service.

ldm remove-vsw primary-vsw0

              4.3 Remove vcc0 service.

ldm remove-vcc primary-vcc0

 

5.       Check all sp-config file and try to restart primary domain using factory-default spconfig file.

 

ldm ls-spconfig

ldm set-config factory-default

 

6.       Now restart/shutdown server so it will take booting config as factory-default.

shutdown -y -i6 -g0

Thanks,

Kiren Jadhav

Can I delete files in /var/log/journal ?

Can I delete files in /var/log/journal ?

/var/log/journal/ are kept the log files created by the journal service (systemd). Yes, the files from /var/log/journal directory can be removed.

1. If /var/log/journal log file using more space like 3.5G etc.. 

We can verify it by running below command:

# journalctl --disk-usage

2. Note down the SystemMaxUse value, it could be hashed or having value like 3.5G

#cat /etc/systemd/journald.conf |grep -i SystemMaxUse

3. Before editing journald.conf file; take copy of it

#cp -rp /etc/systemd/journald.conf /etc/systemd/journald.conf_backup

4. Edit the file journald.conf using vi editor and change the value SystemMaxUse to 200 or 300MB

#cat /etc/systemd/journald.conf |grep -i SystemMaxUse

SystemMaxUse=300M

5. Restart the systemd-journald service to make the changes effective done in /etc/systemd/journald.conf

#systemctl restart systemd-journald

Or

If you do not want to restart the systemd-journald service then use below command :

#journalctl –vacuum-size=300M 

Thanks,

Kiraan B Jadhav