Add SAN functions to Highly Available NFS/NAS

This based on my last post where I documented building a Highly Available NFS/NAS server.

There is not a huge amount that needs to be done in order to add iSCSI functionality as well.

Add a file called /etc/drbd/iscsi.res containing:

resource iscsi {
    on nfs1 {
        device /dev ...
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Highly Available NFS/NAS

Take 2 Centos Servers (nfs1 and nfs2 will do nicely) and install ELrepo and EPEL on them both:

yum install \
    https://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-5.noarch.rpm \
    https://elrepo.org/elrepo-release-6-4.el6.elrepo.noarch.rpm --nogpgcheck

Each of them should ideally have 2 NICS, with the ...

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Music Player Daemon in Fedora

This should have nice and simple, but there was a little gotcha (for me anyway).

First install the RPMFusion repositories:

yum localinstall --nogpgcheck \
    https://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-stable.noarch.rpm \
    https://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-stable.noarch.rpm

Now you can install MPD and a simple client ...

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Back to basics

I have been a Sys Admin for quite a while now. Specialising in Linux means that I am often called upon to be a “jack of all trades, master of many”. In the last week I have touched upon storage, multiple programming languages (Bash, PHP, Python, Ruby and Java), Linux ...

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Home-made Redundant Thin-provisioned SAN

The inspiration for this came from a mixture of problems I was having with my HP P2000, ideas that have been floating around my head for a while, plus a post over at Bauer-power.net. Basically I got given a bunch of warranty returned Supermicro servers from our Customer Service ...

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VMware CLI installation woes on Centos 6

Installing the VMware CLI should have been simple, but it was a bit of a fiddle.

Use yum all the bits it needs:

yum install make autoconf automake openssl-devel gcc gcc-c++ make uuid-perl libuuid-devel uuid-devel  perl-Data-Dump perl-SOAP-Lite perl-XML-SAX perl-XML-NamespaceSupport perl-XML-LibXML perl-XML-LibXML-Common perl-CPAN

You should now be able to run the ...

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Open Source Storage

I have searchstorage.co.uk send me potentially interesting white-papers regularly. If I am honest, most of them or thinly veiled press-releases. However occasionally one is interesting.

Today I received one entitled Break free of vendor lock-in with open source storage. Being a FLOSS fan and a storage specialist, that ...

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Ubuntu upgrade problems

Usually the release upgrade is relatively trouble-free, but this time I had a minor problem. After the upgrade I had no X Windows. It turned out that the NVidia driver not loading.

I had to boot it up in rescue mode, which is selectable from the Grub menu. From there ...

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SMS from Icinga or Nagios

Finding out how to have Nagios (or in my case Icinga) send SMS alerts is easy. However, from my point of view it fell down in 2 ways.

  1. Most of these guides are Debian specific, I am using Centos.
  2. The SMS alerts are all or nothing, I only want SMS ...
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Some great new SAN gear

Just before Christmas I was up at a storage seminar run by a company called Dot Hill. Until I was pointed to them when I spoke to our storage supplier about replacing an aging array I had never heard of them. However, it turns out that they make the hardware ...

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