Today we received a new storage array : a Dell PowerVault MD3600f with two MD1200 expension units. In order to use those new disks, we had a bit of home work todo. Here's how we did it.
But you must be warned : this ain't my best blog post.
Another I.T. blog
Ideas and solutions on IT architecture, UNIX, Linux, Oracle, Telecommunication, storage and virtualization in order to help other systems administrators and DBAs.
Saturday, January 25, 2014
Wednesday, January 22, 2014
HOWTO : Replace a failed disk drive in a FreeBSD ZFS pool
In this blog post, we will repair a broken ZFS pool from a FreeBSD server. The machine is running FreeBSD 9.2, but so long as your FreeBSD machine runs a ZFS enabled FreeBSD, all the commands in this article should work.
A little background on this machine. It's been in production for about four years now. It was originally installed with four 750 GB disk drives as a raidz2 pool. The OS has been upgraded several times and so is the disk drives (because that's what fails of course, hence this post). This is a ZFS-only machine built by following the ZFS only FreeBSD installation wiki with GPT formated disks.
A little background on this machine. It's been in production for about four years now. It was originally installed with four 750 GB disk drives as a raidz2 pool. The OS has been upgraded several times and so is the disk drives (because that's what fails of course, hence this post). This is a ZFS-only machine built by following the ZFS only FreeBSD installation wiki with GPT formated disks.
Monday, November 4, 2013
HOWTO : Configure OpenSSH to Fetch Public Keys from OpenLDAP for Authentication on CentOS
Today we will configure our OpenLDAP server to store SSH public keys so that the OpenSSH daemon can fetch them and thus authenticate our users.
To do this, we first need two CentOS machines. This is easy to achieve via a KickStart. If you need help building a KickStart server, follow my previous blog post. Then we need a working OpenLDAP server. If you don't have one, then follow my previous blog posts to set one up.
To do this, we first need two CentOS machines. This is easy to achieve via a KickStart. If you need help building a KickStart server, follow my previous blog post. Then we need a working OpenLDAP server. If you don't have one, then follow my previous blog posts to set one up.
Thursday, October 17, 2013
HOWTO : CentOS 6 KickStart Server
This blog post will explain how to build a Kickstart server which is used to automatically perform untattended OS installation and configuration of both RedHat 6 and CentOS 6 machines.
Kickstart is basically a copy of the Solaris Jumpstart. If you manage IBM AIX machines, it's the equivalent of NIM. Or Ignite in the HP-UX world.
Kickstart is basically a copy of the Solaris Jumpstart. If you manage IBM AIX machines, it's the equivalent of NIM. Or Ignite in the HP-UX world.
Labels:
linux
Wednesday, October 16, 2013
RCS and sudo log names
If you're tired of always seeing the root user in the RCS $Id$ tags, then follow this short and to the point blog post to switch this to the real author.
Labels:
sudo
Friday, April 12, 2013
Map Apple Keyboard on Windows 7 and Restore Apple Function Keys
This is a short post just to redirect all Apple Keyboard users on Windows 7 machines to a great blog that explains how to get the full functions of the keyboard.
Check the Map Apple Keyboard on Windows 7 and Restore Apple Function Keys for more info.
Check the Map Apple Keyboard on Windows 7 and Restore Apple Function Keys for more info.
Tuesday, March 12, 2013
CentOS yum(8) Error « No module named cElementTree » Fixed
I've been having problems with yum(8) on one of the CentOS 6 x86_64 machines. After looking at many different forums and bug reports, I now found the solution.
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