Juan Manuel Rey bio photo

Juan Manuel Rey

Unix Geek. Sysadmin by heart turned cloud architect. Working for Microsoft.

Twitter Google+ LinkedIn Github Stackoverflow

All Posts

2017

Vagrant ssh in Windows 10 from WSL

Using Vagrant from WSL is perfectly possible as long as you use the Windows version and the Vagrantfile is hosted somewhere under /mnt/c. You can run vagrant...

Migrating from OS X to Windows 10

When I joined Microsoft it was clear to me that I will have to switch to Windows as my main OS. Besides of using Windows 7 on Bootcamp during a couple of wee...

My first three months at Microsoft

When I joined Microsoft my friend, and former VMware colleague, Manfred Hofer asked me to write something about my journey from being a Unix hardcore geek to...

2016

Playing with OpenStack Vagrant provider

Since Vagrant is so tightly integrated in my personal development and learning workflow and my job basically revolves around OpenStack it was about time for ...

Managing VIO with viocli

VIO 2.0 comes with several command line utilities, in a previous post I showed the usage of viopatch to perform patching of an existing VIO installation. In ...

How to enable Ceilometer in VIO 2.0

Ceilometer is the main telemetry and metering project within OpenStack Telemetry, the goal of Ceilometer is to collect all the data generated by the differen...

Quick tip - Troubleshooting networkd

To troubleshoot networkd in case of failure we can enable debug mode using the following procedure, this is applicable to Photon OS or any other linux system...

Network configuration in Photon OS

Photon instances are usually meant to be configured automatically with Cloud-config, this includes hostname, network settings, additional packages, etc. Howe...

You can run Cockpit in Photon OS

I have written in the past about using Cockpit with Fedora and CentOS 7 here and here. Today playing with one of my Lightwave instances I discovered that Coc...

VMware Lightwave multi-node domain setup

VMware Lightwave is an identity and management access service for Cloud-Native apps. It was released to the community last year and the source code can be ac...

2015

Upgrading VMware Integrated OpenStack

In a previous article I showed the process to patch an existing VIO 1.0 installation, which as you were able to see it is a clean and easy process. VMware an...

DNF, the new Fedora package manager

Fedora 22 was released a few months ago and amongst many new features it came with a replacement for yum as package manager called dnf, or DaNdiFied YUM, oh ...

First steps with Pivotal Lattice

Lattice is the latest addition from Pivotal to its portfolio of open source projects. Lattice leverages various components from Cloud Foundry, in order to ru...

How to patch your VIO environment

VMware has released the first patch for VMware Integrated OpenStack. This patch release comes with improvements around the installer, Keystone service and fi...

FirewallD quickstart guide

FirewallD, or Dynamic Firewall Manager, is the replacement for the IPTables firewall in Red Hat Enterprise Linux. The main improvement over IPTables is the c...

How to install Cockpit on CentOS 7

Being used to have Cockpit in my Fedora 21 Server VMs I decided that having it also on my CentOS machines would be awesome, unfortunately I quickly found tha...

Managing your Fedora Server with Cockpit

Cockpit is a new web based server manager to administer Linux server, it will provide the system administrators with a user friendly interface to manage thei...

2014

How to setup ESXi for NSX

In the series of posts about OpenStack and KVM we saw how to add a KVM node to NSX for multi-hypervisor environments as a transport node. In this post we wil...

My DevStack local.conf file

One of the pillars of my personal OpenStack ecosystem is DevStack. For those of you new to the OpenStack world DevStack is a tool, basically is a shell scrip...

2013

Some vCenter Chargeback Manager tips

After the previous article about SSL certificate generation in Chargeback I decided that it was worth to write a couple more tips in a second blog post. This...

That's NOT all folks!

Well it’s been a while since my last post, near nine months. Too much time for any author that really wants to maintain its site more or less alive.  I’m sur...

Linux Kernel 3.7 and VMware Tools issue

I got aware of this issue last week after installing a Fedora 18 virtual machine on Fusion 5. The installation of the Tools went as expected but when the ins...

2012

VMworld 2012 - Day -1

This year I finally manage to go to VMworld. It’s been held in the beautiful Barcelona, just a few hundred kilometers from Madrid, and now that the event is ...

VMworld 2012 Europe... I'll be there

Yes, this year I managed to get myself to the European edition of VMworld. I’m really excited about it, and the best is that I’ll be lucky enough to have spa...

VCSA 5.1– Deployment and upgrade

In the last post we discussed about the new features and changes that comes with version 5.1 of the VMware vCenter Server Appliance. In this new one I will e...

VCSA 5.1– A quick look

Yesterday was a very exciting day, VMware finally announced the new vCloud Suite 5.1. With new products and features announced, each one of them as great as ...

Change ESXi 5 iSCSI iqn with esxcli

After my previous post about getting the iqn of an ESXi using esxcli Andy Banta (@andybanta) commented on Twitter that you can also change the iqn of the hos...

VMworld 2012, it's time to vote

I know that I owe you an apology, it’s been more than a month since my last post but you know how is to join a new company. I had some of the more amazing we...

New journey, new challenges.

The last four weeks I had a bit of a crazy life, but finally the process has come to an end and I can freely speak about it.

vExpert 2012, one more time :-)

When I got home after a morning playing airsoft with some friends I found on my twitter stream a very nice surprise. My friend Josep Ros (@josepros) was con...

How to upgrade the vMA 5

Last week vSphere 5 Update 1 was released by VMware, along with the main products some of the SDKs and automation tools were also updated, including the vMA ...

My first sponsor

I am very happy to announce that today I get the first sponsor for this blog. The people at Veeam Software has been kind enough to take my blog into consider...

More HP sauce on ESXi 5.0

On my first post about HP ESXi 5.0 customized image I discussed about the new esxcli namespaces added by HP. But those tools aren’t the only ones included.

Introducing HP iLO app for iOS

Quietly released by HP less than a week ago, the HP iLO Mobile Application for iOS allows you to control your ProLiant server through their iLO console from ...

2011

Change ESXi 5.0 hostname with esxcli

Yes another post about esxcli, what can I say I’m studying very hard for my VCP5 and from time to time this kind of unknown information, at least for me, ari...

vMA 5 rejects SSH connections

If you deploy vMA 5.0 within your virtual infrastructure will find the first time you try to access it by SSH that the appliance is continuously rejecting yo...

DNS configuration with esxcli

With release of ESXi 5.0 the esxcli command has been also vastly improved. One of this new capabilities is the possibility to manage the DNS configuration of...

A first look into the vMA 5

Like the rest of components of vSphere the vMA, vSphere Management Appliance, has been updated to the new version. In this post I will discuss the changes an...

List ARP table entries of an ESXi

Like we found before for netstat there is no arp command available from within ESXi Tech Support Mode, so how can you list the ARP table entries if you need ...

HP Technology@Work On Tour 2011 - Madrid

The HP Technology@Work On Tour arrived yesterday to Madrid. This event has been a great opportunity for everyone to see the proposals from HP for Converged I...

Change vSphere PowerCLI proxy settings

Today I was performing a test in the vSphere cluster I have in my laptop and when I tried to connect to my vCenter Server with PowerCLI I got the following e...

Mapping VLAN to ports in HPVM

Long time since my last post about HP Integrity Virtual Machines, well you know I’ve been very occupied with vSphere and Linux but that doesn’t mean that I c...

2010

Merry Christmas!

With this picture of our son Jaime and our lady Buffy, my wife and me wish to you and your families all the best for this Christmas and the New Year ahead.

EMC Symmetrix Timefinder survival guide

During a previous project I had the opportunity to work very closely with the EMC people and Symmetrix arrays, in fact I got a couple of very good friends fr...

1 year...

I really can not believe it but a year has passed since my first “Hello World!” post.

HP P4000: Setup a two-node cluster

This post will outline the necessary steps to create a standard (no-multisite) HP P4000 cluster with two nodes. Creating a two-node cluster is a very similar...

Understanding RAID management in Linux

The first thing you must learn about RAID technologies in Linux is that they have nothing in common with HP-UX, and I mean nothing! Yes there is LVM but that...

HP P4000: Generating the CLIQ key file

As I explained in my first post about the SAN/iQ command line, to remotely manage a P4000 storage array instead of providing the username/password credential...

How to rescan the SCSI bus in Linux

You are in front of a Linux box, a VM really, with a bunch of new disks that must be configured and suddenly you remember that there is no ioscan in Linux, y...

HP resources for VMware

The reason for this post is trying to be a single point of reference for HP related VMware resources.

HP Lefthand P4000 VSA verbose boot

If you are a user of the P4000 VSA you’ll be use to the quiet boot sequence of the SAN/iQ software. Just a couple of messages until you get the login prompt.

Enabling vSphere Web Access

If you are in the virtualization business you’ll probably know that since the release of vSphere back in 2009 the web access the ESX servers has been disable...

Mirroring VxVM root disk group

Mirroring the root disk group of an HP-UX server is a very straightforward process that can be performed by simply use the vxrootmir command an use the new m...

OpenBSD network interface trunking

Network interface trunking is the OpenBSD equivalent of HP-UX Auto-Port Aggregation feature. It allows to combine two or more physical interfaces into a virt...

Installing the HP Lefthand CMC in Linux

May be some of you are not aware of this but the HP Lefthand Central Management Console application is available not only for Windows but for Linux and HP-UX...

Time for a change

Those of you who follow me on Twitter probably know that I joined the HP Spain Linux Team a couple of weeks ago and since then my life has become very intere...

Configure AVIO Lan in HPVM Linux guests

The  AVIO Lan drivers for Linux HPVM guests are supported since HPVM4.0 but as you will see enabling it is a little more complicated than in HP-UX guests.

HPVM memory management

Like other virtualization software, HP Integrity Virtual Machines comes with several memory management capabilities. In this new post about HPVM I will try t...

EMC PowerPath basic commands

PowerPath is a multipathing software for Unix operating systems from EMC. If you have ever worked or you are going to work in an environment that includes EM...

OpenVZ in CentOS 5.4

First something I completely forgot in my first post. I discovered OpenVZ thanks to Vivek Gite’s great site nixCraft. This post and the previous one are insp...

Guest migration in HPVM 3.5

As I already said many times my current HPVM version is 3.5 so it doesn’t support guest online migration. But lacking the online migration feature doesn’t me...

Cloning HPVM guests

Our next step in the wonderful HPVM World is… cloning virtual machines.

Moving vNICs between vSwitches

Following with my re-learning HPVM process today I’ve been playing around with my virtual switches and a question had arise.

Coming back to the IVM world

Yes I have to admit it, it’s been a while since the last time I created an Integrity Virtual Machine. In my last job didn’t have HPVM and here the VMs were a...

Double check! Always!

Today I learned the hard way how important is to check everything at least twice.

Machinfo on PA-RISC systems

When the HP-UX Itanium version was released  it came with a very handy tool named machinfo. This command prints number and type of CPUs, amount of memory, fi...

Linux LVM commands in HP-UX

Some of the features I always liked about the Linux LVM2 implementation are the lvs, vgs and pvs commands. With these simple commands a short list of the LVs...

Happy Birthday to me!

Today is my birthday, 34 years. All kind of gifts would be welcome, specially PA-RISC or Itanium servers, EVAs, ProLiant servers, .

Playing with lanadmin & lanscan

Current release of HP-UX, 11.31, has the handy nwmgr to handle networking tasks, but for years instead of nwmgr we’ve been playing with lanscan and lanadmin,...

SSH foolishness

Today it’s been one of those days that you wish to hide very deep under your desk.

Open Source software and HP-UX

HP-UX is a great OS and the default installation provides a plethora of tools for any Unix sysadmin but of course, like almost every operative system, it can...

Tukwila, we are almost there

It seems that finally and after a myriad of delays Tukwila, the brand new quad-core Itanium processor from Intel, is going to be released. Yesterday through ...

OpenVMS Month!

February is the OpenVMS Month. The people of VMSblog have launched a “Call for Participation in the OpenVMS Month”, the event is sponsored by Connect and the...

UNIX95 and ps command

UNIX95 is a Unix standard defined in the Single UNIX Specification. HP-UX 11i is registered as UNIX95 compliant in its v1 and v2 versions and as UNIX03 (a mo...

vg00 mirroring

This is a small cookbook about mirroring the vg00 I’ve compiled throughout the years, well it’s really more like a list with the commands but I believe it ca...

Console2, a Windows CMD replacement

May be you already know it or may be not, but Console2 is one of those pieces of software that when you discover it you ask yourself “How was my life before ...

Configuring APA

Long time since my last post, Christmas you know ;-) BTW Merry Christmas and Happy New Year to all of you.

2009

OpenBSD and VirtualBox

I’ve been using OpenBSD since the 3.0 version as desktop, in my home servers and even in production systems, some time ago I decided to virtualize my OpenBSD...

Hardening dilemma

When you have to secure a system you probably have come to the dilemma ‘Which method is the best? Bastille or manual hardening?’ at least I did it.

HP-UX security resources

Recently a friend asked me about HP-UX security and where to find useful information. We have to admit it, there are not many resources out there about HP-UX...

ioscan_fc2.sh

My first post is about one small, but great, piece of software I found some time ago in Olivier’s site mayoxide. This script is named ioscan_fc2.sh and you c...

Installing a new client with Ignite

Along my career as HP-UX administrator one of the most useful tools has been Ignite-UX. This is, IMHO, the most powerful backup/recovery/deployment tool abov...

Hello world!

OK, this it. Finally I manage to get some time to start my technical blog.