MC Serviceguard - Replace Quorum Server

domingo, 26 de fevereiro de 2012

The first step is stop completely the cluster.. you can't do that without stop your cluster.

for each package:

# cmhaltpkg <package_name>

Stop the cluster:

# cmhaltcl

Now change the Quorun server:

# vi /etc/cmcluster/cmclconfig.ascii
...
QS_HOST quorum-server

Apply changes:

# cmapplyconf -v -C cmclconfig.ascii

Check the cluster configuration:

# cmcheckconf -v -C cmclconfig.ascii

Star the cluster again:

# cmruncl -v

Now check if the new quorum server is in use.

# cmviewcl -v

What's mean the Serial Number?

quarta-feira, 22 de fevereiro de 2012

See the explanation using the follow serial number as example:

DEH2381234

The first two characters are the country code, in our example Germany (DE)
The third character is the code of the supply site (H ->Herrenberg, Germany)
The next three characters are the date of manufacture, the first digit is for the year then two for the calendar week (238 -> 38th week of 2002)
The last four characters are a sequential ID on that particular week (1234)

CSE - Speciality in Networking and Security - HP-UX 11i v3

sábado, 18 de fevereiro de 2012

I have completed the last exam to complete the "CSE - Speciality in Networking and Security - HP-UX 11i v3". For those interested and take the exam:

Register for this certification in The Learning Center

Complete prerequisites:
CSA - HP-UX 11iv3
The current CSA exam:
Exam HP0-P20 HP-UX 11iv3 System Administration

Complete requirements:
Core requirement #1
Exam HP0-P21 HP-UX 11iv3 Advanced System Administration

Core requirement #2
Exam HP0-P17 HP-UX 11i v3 Security Administration

Just to remember, now to schedule the certification exam you have to do through "Pearson Vue", you can't do it more through Prometric.

Useful links:

HP - CSE Speciality in Networking and Security - HP-UX 11i v3

Pearson Vue - HP

IP forwarding

sábado, 4 de fevereiro de 2012

Check the current state:
# ndd -get /dev/ip ip_forwarding

(0 = disable, 2 = enable)
to enable use the follow command:
# ndd -set /dev/ip ip_forwarding 2

disable:
# ndd -set /dev/ip ip_forwarding 0

If you want leave this configuration permanet you have to add the follow lines in nddconf file
ndd conf file: /etc/rc.config.d/nddconf

lines that need be edited:
TRANSPORT_NAME[X]=ip
NDD_NAME[X]=ip_forwarding
NDD_VALUE[X]=2

Disable password age for all user

Sure, there's another methods to do that less fun :)
#for i in `awk -F ":" '{print $1}' /etc/passwd`
do
        passwd -x -1 $i
done

Installing Powerpath (EMC)

First of all is necessary send the depot to server, download always the last version.
Obs. It's necessary reboot the server.

This command will install the patch:
#swinstall -x autoreboot=true -x mount_all_filesystems=false -s /tmp/EMCPower.HP.4.1.0.tar EMCpower
Where "-s" will receive the full path of the patch.

It's time to configure now:
This command will ask te registration key.
#emcpreg -install  
#powermt config
#powermt set policy=so dev=all
#powermt save

You can check your disks:
# powermt display dev=all

Check the powerpath configuration:
# powermt display

Checking the HP-UX installation date

Follow some solution:

Using print_manifest:

# print_manifest | grep -i "The system was created"
Using swlist:

# swlist -l bundle -v HPUXBaseOS | grep mod_date

or

# swlist -a install_date -l product | grep -i os-core

What's the patch installation date?

There's different mothods to do that:

1 - Using swlist:

# swlist -l patch -a revision -a title -a state -a install_date

This is the date format:
200903081306.51
YYYYMMDDHHMM.SS

2 - Using "ls":

# ls -dltr /var/adm/sw/products/PH*

Check the creation date on output.