To activate all known volume groups in the linux system

Vgchange –a –y

credit for : http://computerstec.com/linuxcommand/linuxc4.htm

how to extract file .gz and install driver in linux

# 1: Uncompress tarball

To uncompress them, execute the following command(s) depending on the extension:

$ tar zxf file.tar.gz

$ tar zxf file.tgz

$ tar jxf file.tar.bz2

$ tar jxf file.tbz2

Now change directory

$ ls

$ cd path-to-software/

# 2: Build and install software

Generally you need to type 3 commands as follows for building and compiling software:

# ./configure

# make

# make install

command to check hba wwn and hba vendor name

cat /sys/class/scsi_host/hostn/device/fchost\:hostn/port_name

or

cd /sys/class/fc_host/host1/device/fc_host:host1

more port_name

vendor name :

lspci |grep -i -e fib -e hba