Seagate Unveils 1TB Hard Disk Drive

Rai    Hardware     disk, hard drive, Hardware, rpm, seagate, storage, terabyte

It may seem a dream at first to have a whopping 1 Terabyte of disk storage for all your digital movie, picture and music files. And now the dream is over as Seagate, world’s top manufacturer of digital storage media, made available to consumers 1TB hard disk drive (HDD) at 72000rpm motor speed.

The HDD is made up of four platters and eight heads, making it 180GB worth of storage per square inch, industry’s highest when it comes areal density. But power consumption and noise level are still at par with the current drive models using 13w of power and 2.8bels in idle mode and 3.7bels in seek modes. The speed is also the same with the 1TB model since it uses 7200 revolutions per minute in its spin. The drive can cache 32MB of data and seek time averages at 8.5ms.

Current prices range from $180to $250 for SATA based on amazon.com prices.

Tip: Testing Your PHP/MySQL Connection

Rai    Linux     apache, cli, command, commands, howto, Linux, mysql, password, php, rpm, web server, yum

How to test if PHP connects to MySQL database?

There are numerous times when I have to setup Apache and PHP on a freshly installed Linux server. Considering that not only that Apache service should work, I also have to make sure that PHP and MySQL are working properly together.

Forgetful that I am, I always tend to forget what components should I have to make PHP and MySQL talk to each other. You need something like a ’special glue’ to connect the two together and I will discuss here how to make PHP and MySQL work together for both RPM and source installation.
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Howto: Install yum On RHEL 4

Rai    How-To's, Linux, Tips, Troubleshooting     centos, Linux, package, repository, rhel, rpm, up2date, update, yum

There are more than a couple of ways of updating Red Hat Enterprise Linux (RHEL) packages on your machine. One is by using up2date, the default package updater of RHEL systems. Unlike Fedora and CentOS which uses yum, up2date requires you to be registered to Red Hat Network (RHN) to be able to download or update your packages from the RHN repository.

Now, what if you need to install a certain package that is not available in your current repository by up2date? Or what if the package in the repository wreaks havoc in your system? Maybe you should try using yum to install or update rpm packages.

But… but… but how can I install yum in my RHEL machine?, you may ask. It’s actually very simple.

I got this tip from Babar Haq’s Blog with a little modification since I am using RHEL 4.

1. Download yum by using wget

# wget http://linux.duke.edu/projects/yum/download/2.0/yum-2.0.8-1.noarch.rpm

2. Install the rpm

# rpm -ivh yum-2.0.8-1.noarch.rpm

3. Configure /etc/yum.conf to use compatible repository

[main]
cachedir=/var/cache/yum
debuglevel=2
logfile=/var/log/yum.log
pkgpolicy=newest
distroverpkg=redhat-release
tolerant=1
exactarch=1

[base]
name=CentOS-$releasever – Base
baseurl=http://mirror.centos.org/centos/4/os/i386/
gpgcheck=1

[updates]
name=Red Hat Linux $releasever – Updates
baseurl=http://mirror.centos.org/centos/4/updates/i386/
gpgcheck=1

4. Download and install the CentOS GPG Key

# wget http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-4

# rpm –import RPM-GPG-KEY-CentOS-4

5. Test yum to see if it works (I tested by running full update on my machine)

# yum update

*Note: This will update ALL installed packages in your machine. If you do not want to do this, cancel the process or skip this step.

If you reach step 5 without encountering any errors, it means that yum is successfully updating your machine with the latest versions available in the repo.

This worked perfectly fine for me. If you experienced any errors, post a message and I will try to help you out