nothing is impossible!!!!

nothing is impossible!!!!

Monday, April 26, 2010

Good article on iscsi

Thursday, April 15, 2010

How to select specific storage ?

What is largest amount of data do you manage?

How much data is significant for you?

have you planned about deletion of data?

how ofter will you delete data? schedule?

Who is gone access your data? ex. applications, servers ?

are you planning to host your applications as well?

how must data application gone consume?

how much your application data may grow?

How busy will be your storage?

applications future plans?

How much data may grow in future?

If data not available, how does unavailability cost your org?

are you planning to archive data?

Why do you want to archive data?

how ofter are you planning to archive data?

for how long will you keep archive data?

existing data managements issues?

data center to manage data storage equipment?

Enough space in datacenter?

Tuesday, April 13, 2010

kickstart fully automatic installtion for rhel

Note: Please remember options may vary depend on OS, network settings, os update version etc.

This fully automatic installation cfg is for RedHat 5 OS.

nfs --server= --opts=tcp --dir=/pub/rhel/released/RHEL-5-Client/U5/i386/os
keyboard us
lang en_US
key --skip
reboot --eject
selinux --disabled
firewall --disabled
rootpw redhat

timezone --utc Asia/Kolkata
network --onboot yes --bootproto dhcp --gateway --nameserver

#Setup default services
services --disabled=cups,messagebus,ip6tables,isdn,pcmcia,hidd,bluetooth --enabled=ntpd,nscd

# Disk Setup

bootloader --location=mbr --append="rhgb console=tty0 console=ttyS0,9600"
clearpart --all

# auto disk partition
part /boot --fstype ext3 --size=100
part swap --fstype swap --size=2048
part pv.1 --size=0 --grow
volgroup AutoVolGroup pv.1
logvol / --vgname=AutoVolGroup --name=root --size=1 --grow


cat <> /etc/motd
Lab automatic kickstart installation.
Installed `date`
cat /etc/motd >> /root/ks.cfg

Wednesday, April 7, 2010

disable selinux on the fly

To disable selinux on the fly you should run following command in terminal,
setenforce 0

to disabled it permanently, open /etc/selinux/config and change value to SELINUX=disabled