Pio's work related musings

Pio's work related musings

David  //  

Jan 6 / 2:14am

Increase A VMware Disk Size (VMDK) Formatted As Linux LVM ~ Mattias Geniar

Increase A VMware Disk Size (VMDK) Formatted As Linux LVM

This is a very well written and concise article on extending an LVM drive. Well done Matti!

Filed under  //  linux   lvm  
Nov 1 / 5:25am

Android apps #3: llama

Modern smartphones are great. All those apps, connected to the internet, retrieving information and letting you know about it with beeps and bongs.

The only downside is the inevitable beep in the middle of the night that wakes you up.

Enter Llama. It's designed to change the ringer and notification volumes depending on the time and where you are.

Previously I used Foxyring, but that used GPS data which sucks the battery dry, so I ended up just using the timers.

Llama however has a trick up its sleeve - passive scanning of cell towers (already known by the phone unless you've put it in flight mode). By using this instead of GPS, you can have some really nifty rules.

For instance I have my phone go louder when I leave home, and very loud when I'm working in the noisy Datacenter, but quiet at work and at home, and silent overnight.

It's highly configurable but the defaults are pretty useful.

Oct 27 / 4:59am

Android apps #2: Catch notes

For note taking I like keeping things simple such add just using a text editor, but there are occasions when it's useful to keep a photo (such as when you're at the datacenter and need to remember which nics you've just plugged in the back of a server) and text only just won't cut it.

That's where Evernote and my favourite Catch notes come in. They also have the added bonus of syncing with the cloud so it's easy to get the content when you're back at your desk again.

I prefer catch mainly because it can be moved to sd card (which breaks widgets) and it has a small lightweight widget for quick notes.

Well designed, easy to use and rather useful.

Filed under  //  Android  
Oct 25 / 2:23pm

Android apps #1

The first in probably infrequent series with the best free apps for Android phones. I've pretty much got "an app for that" and all of them free.

So kicking everything off is Jota, a text editor. Advert free, it does everything you want from a text editor in windows, let alone on a mobile phone.

Filed under  //  Android  
Jul 20 / 1:47am

Macrium Reflect FREE Edition

Media_httpwwwmacriumc_rlcuh

The first in an intermittent series of posts for my top free PC tools concerns Macrium Reflect.

It's a great imaging tool (similar to Ghost) that can even do bare metal restores via a linux or WinPE boot disk (depending on hardware compatibility fo course).

The best news is they offer a freeware version, so there's no reason not to get it...

Filed under  //  Killer App   imaging  
May 20 / 3:09am

Error: "The resource vswif0 is in use" when changing service console IP

When you try to change a service console IP from DHCP to Fixed, you'll get this error.

A simple workaround is to add a second service console with a new IP and delete the original.

Filed under  //  vmware  
Nov 19 / 12:36am

Checking DFS replication status

On windows 2003 R2 and Windwos 2008, Distributed File System replication is handles by the new DFSR service.

You can check the status of replciation using the DFSRDIAG command, but if you're on a windows 2008 server, be careful to run this as Administrator otherwise you'll get an error "[ERROR] Access is denied when connecting to WMI services".

Nov 16 / 1:05am

Netstat tips and tricks for Windows Server admins

What process is running on the open port: Tracking down which process identifier (PID) has a port open is quite easy when netstat is run with the -a -n -o combination of parameters

A useful article explaining the netstat command parameters, especially the example I'm always looking for which shows the process name.

Filed under  //  command line  
Nov 12 / 4:03am

Serial ports created during a P2V process & why you should delete them asap

A quick tip for machines that have just been P2V'd with vConverter: 

Make sure you remove the TTY / serial devices which are automatically created. 

These are class as mapped host devices but unlike a mapped host cd drive, they cannot be disconnected without powering off the new VM.

As a result you can't vMotion the new VM and hence it stops DRS from being able to migrate the VM and also you can't put the host into maintenance mode (such as during a host update patch process)

Filed under  //  vmware  
Nov 12 / 2:20am

VMWare iSCSI access policy in vSphere ESX4.1

The iSCSI access policy is the method VMware uses to leverage multiple paths to iSCSI storage.

By default even if you have multiple paths from VMWare to your storage, it will use an active/passive configuration, usually meaning that you'll have a 1Gb/s bottleneck (unless you're fortunate enough to be using 10Gb/s networking.

To change the policy in older versions of VMware, you updated the properties of each volume on each server and changed the drop down to the value you want (usually Round Robin).  The change was instantaneous meaning a misclick of the list actually changed the value.

In ESX 4.1 this behaviour has been changed by adding a button next to the drop down.  You need to make sure you click this button for the change to be applied, otherwise you'll be wasting your time.

Vmware-iscsi-policy
Filed under  //  vmware