Cloud DevOps Admin Guide

Most commonly used XSCF commands- solaris

The eXtended System Control Facility Unit (XSCFU) is a service processor that operates and administrates both midrange servers. The XSCFU diagnoses and starts the entire server, configures domains, offers dynamic reconfiguration, as well as detects and notifies various failures. The XSCFU enables standard control and monitoring function through network. Using this function enables starts, settings, and operation managements of the server from remote locations.

Connecting a domain

Check for the available domains on the servers :

XSCF> showdomainstatus -a
DID Domain    Status
00            Running
01            Running
02            Running
03              -

Now to connect to the domain with ID 00 :

XSCF> console -d 0

Power/reboot/reset/panic commands

Poweron all domains

XSCF> poweron -a

Poweron only domain 0

XSCF> poweron -d 0

Poweroff all domains

XSCF> poweroff -a

Poweroff domain 0

XSCF> poweroff -d 0

Reboot XSCF

XSCF> rebootxscf

The 3 modes to reset a domain are :

por: To reset the domain
panic: To panic the domain
xir: To reset the CPU in domain

XSCF> reset -d 0 por
XSCF> reset -d 0 panic
XSCF> reset -d 0 xir

Send a break signal to a domain (with ID 0)

XSCF> sendbreak -d 0

User Administration

Creating a New user

XSCF> adduser -u 345 admin

Delete a user

XSCF> deleteuser admin

Disable a user

XSCF> disableuser admin

Enable a user

XSCF> enableuser admin

Display user account information

XSCF> showuser -a

Set or change a User (admin) password

XSCF> password admin

Network related commands

Display complete network configuration

XSCF> shownetwork  -a

Set IP address for XSCF-LAN#0 in the XSCFU#0

XSCF> setnetwork xscf#0-lan#0 -m 255.255.255.0 192.168.1.10

We must apply the network settings and reboot the XSCF in order to the network settings to take effect :

XSCF> applynetwork
XSCF> rebootxscf

Setup 2 NTP servers with IP 192.168.1.10 and 192.168.1.20

XSCF> setntp 192.168.1.10 192.168.1.20
Please reset the XSCF by rebootxscf to reflect the ntp settings.

To delete a NTP server 192.168.1.20

XSCF> setntp -c del 192.168.1.20
  Please reset the XSCF by rebootxscf to reflect the ntp settings.

Hardware Related Commands

Show field replaceable units(FRU)

XSCF> showhardconf

Display degraded units

XSCF> showstatus

To display configured devices on XSBs

XSCF> showdevices

Fault Management configuration tool

To view fault management logs

XSCF> fmdump -v
TIME                    UUID                                    MSG-ID
Nov 30 20:44:55.1283    9f773e33-e46f-466c-be86-fd3fcc449935   FMD-8000-0W
   100%  defect.sunos.fmd.nosub
   .....

Display Very Verbose Event Detail for a UUID

XSCF> fmdump -e -V -u 5f88d7d5-a107-4435-99c9-7c59479d22ed TIME CLASS

Logs

show the logs

XSCF> showlogs -v
XSCF> showlogs error
XSCF> showlogs power

Snapshots

We can take a snapshot of M series servers XSCF either on a remote server or on a USB device locally connected. To take a snaphot on a remote system 192.168.1.10 (in /var/tmp directory) by using root user credentials :

XSCF> snapshot -L F -t root@192.168.1.10:/var/tmp

To take the snapshot on a Local USB device connected to the server :

XSCF> snapshot -L F -d usb0

Connect DVD Device to a domain

Run the following from the XSCF to connect the DAT & DVD to the needed port based on the domain(s) configuration.

XSCF> cfgdevice -q -y -c attach -p 0-0

Confirm that the device is attached to domain and is enabled :

XSCF> cfgdevice -l

From the OS prompt configure the newly added DVD device and restart the volmgmt service:

# cfgadm -c configure # c0
# /etc/init.d/volmgt start

Hostname

Display current hostanems of XSCF units

XSCF> showhostname -a
xscf#0: hostname01.example.com 
xscf#1: hostname02.example.com

To set hostname and DNS domain name for XSCF doamin respectively

XSCF> sethostname xscf#0 hostname01
XSCF> sethostname -d example.com

Shut Down or Reboot a Solaris System

Normally, the system reboots at power-up or after a system crash. You can reboot a system by using either the init command or the reboot command. The init 6 command asks for stop methods (either SMF or rc.d). Whereas, the reboot command does not, thereby making the reboot command a more reliable way of rebooting a system.

Solaris is usually used as a server operating system. Because of this, you want to make sure that you shut the system down as gracefully as possible to ensure there isn’t any data loss.

For every application that is installed on your server, you should make sure that you have the correct scripts in /etc/rc(x).d to gracefully shut down the service.

Shutdown

You have more than one command option that you can use. The best command is this, executed as root:

shutdown -y -i5 -g0

This will immediately shut the system down. You can also use the older command that still works:

sync;sync;init 5

You can even use:

poweroff

Reboot
If you are trying to reboot the system as opposed to turning it off, you could use:

shutdown -y -i6 -g0

Or:

sync;sync;init 6

Or even:

reboot

So many commands to do the same thing…

PowerHA/HACMP Moving Resource Group (RG) one node to other

In this post, you will be learning the steps for moving a resource group from one node to the other node. The steps as follows:

1) Extending PATH variable with cluster paths

Sometimes cluster paths are not included in default path ,run below command in case if you are not able to run commands directly.

export PATH=$PATH:/usr/es/sbin/cluster:/usr/es/sbin/cluster/utilities:/usr/es/sbin/cluster/sbin:/usr/es/sbin/cluster/cspoc

2) Check the cluster services are up or not in destination node

#clshowsrv -v
Status of the RSCT subsystems used by HACMP:
Subsystem         Group            PID          Status
 topsvcs          topsvcs          278684       active
 grpsvcs          grpsvcs          332026       active
 grpglsm          grpsvcs                       inoperative
 emsvcs           emsvcs           446712       active
 emaixos          emsvcs           294942       active
 ctrmc            rsct             131212       active

Status of the HACMP subsystems:
Subsystem         Group            PID          Status
 clcomdES         clcomdES         204984       active
 clstrmgrES       cluster          86080        active

Status of the optional HACMP subsystems:
Subsystem         Group            PID          Status
 clinfoES         cluster          360702       active

3) Check the availability of resource group

# clRGinfo

-----------------------------------------------------------------------------

Group Name     Type           State      Location

-----------------------------------------------------------------------------

UMRG1            non-concurrent OFFLINE    umhaserv1

                                ONLINE     umhaserv2

#

4) Move the resourcegroup by using below command

==>  clRGmove -g <RG> -n  <node> -m

# clRGmove -g UMRG1 -n umhaserv1 -m

Attempting to move group UMRG1 to node umhaserv1.

Waiting for cluster to process the resource group movement request....

Waiting for the cluster to stabilize..................

Resource group movement successful.

Resource group UMRG1 is online on node umhaserv1.

You can use smitty path also

smitty cl_admin => HACMP Resource Group and Application Management => Move a Resource Group to Another Node / Site

5) Verify the RG movement

# clRGinfo

-----------------------------------------------------------------------------

Group Name     Type           State      Location

-----------------------------------------------------------------------------

UMRG1          non-concurrent   ONLINE     umhaserv1

                                OFFLINE    umhaserv2

#

Manually Install or Upgrade VMware Tools in a Linux Virtual Machine

For Linux virtual machines, you manually install or upgrade VMware Tools by using the command line.

Install the latest version of VMware Tools to enhance the performance of the virtual machine's guest operating system and improve virtual machine management. When you power on a virtual machine, if a new version of VMware Tools is available, you see a notification in the status bar of the guest operating system.

Note
This procedure describes how to use the VMware Tools tar installer to install or upgrade VMware Tools. For virtual machines in a vSphere environment, you can alternatively use VMware Tools operating system specific packages (OSPs) to install and upgrade VMware Tools. With OSPs you can use the native update mechanisms of your operating system to download, install, and manage VMware Tools. For more information, see Operating System Specific Packages for Linux Guest Operating Systems.

Prerequisites

■ Power on the virtual machine.

■ Verify that the guest operating system is running.

■ Because the VMware Tools installer is written in Perl, verify that Perl is installed in the guest operating system.

■ To determine whether you have the latest version of VMware Tools, look on the Summary tab for the virtual machine.

Procedure

1) Select the menu command to mount the VMware Tools virtual disc on the guest operating system.

VMware Product

Menu Command

vSphere Client

Inventory > Virtual Machine > Guest > Install/Upgrade VMware Tools

2) If you are performing an upgrade or reinstallation, in the Install/Upgrade VMware Tools dialog box, select Interactive Tools Installation or Interactive Tools Upgrade and click OK.

The process starts by mounting the VMware Tools virtual disc on the guest operating system.

3) In the virtual machine, log in to the guest operating system as root and open a terminal window.

4) Run the mount command with no arguments to determine whether your Linux distribution automatically mounted the VMware Tools virtual CD-ROM image.

If the CD-ROM device is mounted, the CD-ROM device and its mount point are listed as something like this:

/dev/cdrom on /mnt/cdrom type iso9660 (ro,nosuid,nodev)

5) If the VMware Tools virtual CD-ROM image is not mounted, mount the CD-ROM drive.

a : If a mount point directory does not already exist, create it.

mkdir /mnt/cdrom

Some Linux distributions use different mount point names. For example, on some distributions the mount point is /media/VMware Tools rather than /mnt/cdrom. Modify the command to reflect the conventions that your distribution uses.

b : Mount the CD-ROM drive.

mount /dev/cdrom /mnt/cdrom

Some Linux distributions use different device names or organize the /dev directory differently. If your CD-ROM drive is not /dev/cdrom or if the mount point for a CD-ROM is not /mnt/cdrom, modify the command to reflect the conventions that your distribution uses.

6) Change to a working directory (for example, /tmp).

cd /tmp

7) Delete any previous vmware-tools-distrib directory before you install VMware Tools.

The location of this directory depends on where you placed it during the previous installation. Often this directory is placed in /tmp/vmware-tools-distrib.

8) List the contents of the mount point directory and note the filename of the VMware Tools tar installer.

ls mount-point

9) Uncompress the installer.

tar zxpf /mnt/cdrom/VMwareTools-x.x.x-yyyy.tar.gz
The value x.x.x is the product version number, and yyyy is the build number of the product release.

If you attempt to install a tar installation over an RPM installation, or the reverse, the installer detects the previous installation and must convert the installer database format before continuing.

10) If necessary, unmount the CD-ROM image.

umount /dev/cdrom

If your Linux distribution automatically mounted the CD-ROM, you do not need to unmount the image.

11) Run the installer and configure VMware Tools.

cd vmware-tools-distrib

./vmware-install.pl

Usually, the vmware-config-tools.pl configuration file runs after the installer file finishes running.

12) Respond to the prompts by pressing Enter to accept the default values, if appropriate for your configuration.

13) Follow the instructions at the end of the script.

Depending on the features you use, these instructions can include restarting the X session, restarting networking, logging in again, and starting the VMware User process. You can alternatively reboot the guest operating system to accomplish all these tasks.

The VMware Tools label on the Summary tab changes to OK.