Don’t neglect your software updates!

While it seems that PC’s and Mac’s seem to require patches and updates very regularly, don’t become complacent. Updates are provided free and automatically for a reason. A recent study of Windows Malware infections showed that most exploits target patched security vulnerabilities and (somewhat surprisingly if you believe everything on the internet) most of these are not actually Microsoft’s doing. The most likely entry points for malware into your system (in descending order) are flaws in Java, Adobe Reader, Adobe Flash Player and MS Internet Explorer. Only one of those is Windows only…

Java installs an automatic update notification when it is installed, run these updates!

Adobe runs automatic update checks as well for Reader and Flash, install these updates! One word of caution though for businesses with a caching proxy server, beware of the Adobe Updater fundamental coding flaw that Adobe won’t acknowledge. Adobe Updater is very impatient, if it does not start receiving its update within 15 seconds, it will request it again. If you have a caching proxy server (running Anti Virus checks on downloaded files for example), make sure the Adobe update sites are either blocked (install updates manually for the business) or exempt from scanning or it can burn your internet bandwidth very quickly (until you stop it). All Adobe needs to do is check for a proxy server in the internet settings and if there is one, extend the timeout. They haven’t yet.

Finally, dont use Internet Explorer unless you have to. Microsoft Cloud Service web interfaces such as Sharepoint work best with Internet Explorer and some systems management tools with web interfaces require it due to custom Active-X controls (Blackberry Server Express for example). A better alternative is to use Mozilla Firefox or Google Chrome and for even more protection in Firefox, install the “NoScript” plugin.

Finally, make sure you patch Windows and Mac’s all the time. It is pretty rare these days that patches break things but it does still happen from time to time. In a business environment, make sure you test updates properly before deployment. Home users should do a web search on the updates to see if people are reporting problems.

UPDATE: February 5th 2012.
I should have mentioned to make sure you keep your website back-end up to date if you use a content management system (or even just a database). There are many vulnerabilities in every CMS, they are usually patched quickly but if you dont apply the patches, you will become the victim of an automated hack. A client recently had their website hacked, fortunately it was a relatively benign, albeit alarming hack. The vulnerability was traced to a very old version of WordPress that was not even being used that was installed in a subfolder on the website and had been forgotten about. The hack installed a small shell onto the web server which give full control of the whole site, not just the old WordPress blog. Their main blog was up to date. Plugins are also likely points of entry into your web site, keep them up to date as well.

Solid State Hard Drives – It is time

I have been a big fan of Solid State Drives (SSD’s) for laptops ever since I saw one in action (yes even when they were expensive!). My first one was a 64 GB Samsung that turned up in a Dell laptop bought for a song on Grays Online. I was immediately impressed by the boot speed improvements and responsiveness of the system which made the relatively small storage capacity easy to live with. Now, I would not consider anything else for my own use. The lower power consumption, less heat generation, high shock resistance and no need to de-fragment all make them a compelling option.

Solid State Drives may not be for everyone, users with a large media collection on their laptop for example, and they are more expensive but with recent leaps in technology making other components much faster, now the traditional hard drive has become the performance bottleneck for many systems, especially laptops. With SSD performance easily able to sustain 2-3 times the read and write speed of a traditional hard drive, the performance benefits are noticable. The Windows 7 experience index is generally around 5-5.9 for a traditional laptop drive, an SSD laptop drive will easily run up around 7.2-7.5 (see my laptop experience index on the right). While the actual relationship of performance to these numbers is a bit subjective, my experience with SSD upgrades is that it definitely feels 50% quicker at least.

My current preferred SSD is the OCZ Vertex range, either the SATA 2 Vertex II or the SATA 3 Vertex III. I only prefer these as they are readily available from one of my suppliers at good prices and they are fast and, so far, reliable. There are a couple of issues though. The main issue I have had is that the OCZ 2.5″ drives are slightly larger (a fraction of a millimetre but enough to be noticable) than a traditional drive which is strange. I have had some fitting issues in some laptops where the slightly larger width makes it a very snug fit, especially where there is a carrier screwed to the drive (2-3 yr old Lenovo T-Series laptops seem particularly difficult to get the OCZ SSD’s into). I have also had some compatibility issues with some brands and the newer SATA 3 Vertex III drives. An HP 6560b Probook for example just could not recognise the drive at all but had no problems with the SATA 2 Vertex II drive (they are supposed to be backwards compatible). Even a firmware update to the drive and a BIOS update to the laptop made no difference. The same drive worked without issue in my Dell Precision M4500 laptop so it can be a bit hit and miss at the moment. If in doubt, go with the SATA II option, they are pretty quick anyway!

Long term performance and reliability should be pretty good, the chip technology is good these days and always improving but as always, make sure you back up regularly regardless. I carry an external USB drive for bulk storage as my 128GB capacity is a bit light on, I also have a 32GB SD card (encrypted just in case it falls out and I lose it) permanently plugged into my laptop for a bit of extra space. 128GB does seem to be the pricing sweet spot at the moment but the 256GB and 512GB drives are getting cheaper as they become more popular and production increases.

I wont be going back to the old drives myself. You may not want the extra expense but it is definitely worth it in my opinion.

UPDATE: February 5th 2012
I have had a couple of client SSD’s fail recently, anecdotal evidence suggests that they may not be as reliable as we had hoped. The other downside is that when they fail, they fail, game over. It is relatively rare for a mechanical drive to fail without warning with no way of recovering any data. That said, I still use and recommend then. To me, the performance gains far outweigh the reliabilty issues. Make sure you have good regular backups and decide if you want the Toyota Corolla or the McLaren F1 racecar.

Small and Silent, the Intel Atom

I recently decided to re-visit my Home Theatre PC system and my always on home PC. Recent electricity cost increases have made the $140 per quarter it costs to run my IT systems start to look a bit much. I decided to retire my main PC to more of an “as needed” role with an always on PC being ultra low power consumption. The plan was an Intel Atom D525 PC with 4GB RAM and a solid state hard drive running 24/7 along with my NAS. It was all fine in theory.

The system I built used an ASUS mini iTX motherboard with nVidia ION graphics. Only a handful of the iTX Atom motherboards supported dual digital screens, a non-negotiable requirement. It had a 4GB RAM limitation in the chipset but this was fine for my needs. Two 2GB SODIMM chips fitted in quite neatly and the ultra small Aywun case with external 65W PSU seemed pretty good. It supposedly could accommodate a single 2.5″ hard drive and a slim optical drive. The hard drive mount was fine but the slim optical drive was a tight fit and seemed to distort the drive slightly which made it either vibrate badly or not eject depending on its exact location.

With the system up and running, the meter attached to its power supply was indicating a power consumption of 27W which, based on current prices of $0.21/KWh, equates to around $13AU/quarter, not bad. It was also completely silent with no moving parts and all passive cooling.

Take 1: After removing the slim optical drive and reverting to a USB one for the install, Ubuntu 11.04 desktop was installed. It installed and ran fine and could easily do most of what was asked of it until video playback. HD up to 720p was perfect but 1080p was jerky and not watchable.

Take 2: After Ubuntu not being able to play 1080p, I decided to install Windows 7 instead so I could directly compare the Atom performance against my existing PC. I was not expecting it to play 1080p either and I was right. All other general use was fine although zipping or unzipping large files was, as expected due to a slow CPU, very slow. I was impressed by how fast the Windows shell was, general use was perfectly acceptable, probably due to the speed of the SSD.

I still was not happy due to the lack of 1080p which meant that my experiment could not form the basis of a Media Centre PC which I had hoped it would. I took a step back and decided to rebuild with a fan. I had a brand new model CPU, the bottom of the line Intel Pentium G620 and another iTX motherboard (also with dual digital video) and case from a cancelled order. The Aywun case was too small for the heat sink and fan so I used a slightly larger iTX case with an internal 150W power supply. Unfortunately this also means a power supply fan, a small one, and small fans are noisy. I simply swapped the hard drive across and thankfully it just worked so I didnt need a rebuild. Now I have a much faster (Windows experience CPU index 5.2 up from 3.5 for the atom) small PC, albeit a noisier one that will happily play 1080p. It draws slightly more power at around 32W at rest and the components were actually marginally cheaper than the Atom (full size DIMM RAM chips are faster as well as cheaper too). Graphics performance is actually a bit worse (based on the Windows experience index), the nVidia ION has more grunt than the Intel HD graphics chipset. This is not an issue given that it is not for gaming and video playback is more CPU dependent. The next step will be to remove the tiny power supply fan and try to mount and duct a larger quieter fan instead. Perhaps I can lose the CPU fan as well and simply vent the entire case with a top mounted 120mm Noctua silent fan, it should move more than enough air and be much quieter. Maybe then it will compare to the Mac Mini….but then again, maybe not. The larger case can take a low profile PCIe TV Tuner card though.

Now my home office draws around 130-180W (with screens on) for the NAS, switch, DSL modem, VOIP box, PC and fish tank (yes its on my office UPS) down from the 250-300W it was drawing previously. This is saving around $60/quarter in electricity. Break even will be in less than a year. I get all my equipment wholesale and can claim it as a deduction but can only claim 10% of the home power bill as a business expense. The only other downside is that I now may need heating in the office in winter….

Mac Mini Home Theatre PC

I have been installing some basic Home Theatre PC (HTPC) systems for clients so decided that I needed to do my own properly. My original Home Theatre “PC” was a “play anything” Phillips DVD player. It had a USB port that served us well but it was not the easiest to use. I had to provide extra power to the hard drive plugged into the USB port which meant the drive never turned off. It ran extremely hot in a closed cupboard and failed a few times before I decided to start again.

I spent a great deal of time looking at Home Theatre PC options for home. I initially decided that a Windows 7 Media Centre PC would suit my needs. I looked into making an ultra small form factor Media Centre PC to manage my significant (and growing) media library. The system initially had to handle any video media format (as well as audio although we didnt plan to use it for music), be easy to navigate and manage High Definition TV at full HD (1920×1080) via HDMI. It also had to be either cheap or re-use as many components that I already had as possible (such as an HD TV Tuner card). However, I ran into issues with SWMBO (She who must be obeyed) who had some specific design requirements (it has to be out of sight or look good). Out of site was going to be extremely difficult.

After failing to find anything that I considered suitable for a Home Theatre PC in parts (primarily a case and motherboard), I began to experiment with the late 2009/early 2010 Intel Mac Mini. I already had one my desk and thought it would make a suitable Home Theatre PC. A lack of TV tuner options (USB only) meant I had to drop TV as an integrated option. I had a Topfield PVR with USB out so I can copy and re-encode saved digital TV to the Mac Mini anyway. The Mac Mini is a great form factor for a Home Theatre PC, it is tiny, unobtrusive, has optical digital out, is very efficient. It also has an internal Infra Red receiver and (now) has native HDMI out. Its biggest downfall is a lack of Blu-Ray (the internal drive is DVD only).

I have my Mac Mini connected to the TV now and it is operating as a Home Theatre PC. It does not have an internal TV tuner (nor the ability to add one) and I do not have a USB or network tuner so it is not doing TV. It just plays downloaded and saved content from a 6TB QNAP NAS. I tried installing Windows 7 with Bootcamp to compare the two. Windows 7 is using Media Center, the Mac is using Plex. I tried using the built-in Mac app “Front Row” but it only really works with iTunes media and was not suitable for our needs. Plex was a little slow sometimes and had a habit of freezing up about once per week but is much nicer to use than Media Center. Windows 7 on the Mac Mini is a little sluggish (probably due to the 5400rpm HDD). The latest versions of Plex are completely stable and after a full rebuild (with faster hard drive, upgrade to 4GB RAM and no extra apps), it is now my permanent choice. The wireless connection was not reliable for HD streaming (even when connecting with 802.11n at 144mbps) so I had to install gigabit ethernet to speed it up. The full HD resolution did not display correctly on my TV until OSX 10.6.4 (a widely reported “overscan” issue). I bought a 1.8m mini-displayport male to HDMI male cable from Hong Kong to elegantly clean up the mini DVI to DVI then DVI to HDMI then HDMI cable mess. Six weeks after buying my Mac Mini, they released a new model with an HDMI port (Not happy). I have not connected the digital optical out from the Mac Mini so any downloaded content only plays in Stereo which is fine for most downloaded content.

The Mac Remote resembles an aluminium tongue depresser, it is too small and thin but is sturdy and it works, albeit in a fairly limited way. Plex has been designed for use with the Mac Remote and most functionality is fine. Plex remote for the iPad is a nice addition. It can act as a remote control for the Plex system on the TV or can stream media directly to the iPad (the latest Plex has a server and client component). Plex works best with strict file names and filing conventions as it tries to match media to an online database and download meta-data for it (images, information etc). This feature still needs some work but it is getting there. Any downloaded files usually need to be renamed (eg show\season X\show S0xE0x.avi) to give them the best chance of being properly indexed. My preferred renaming app is a Windows apps called “The Renamer” and since my downloads and NAS sorting happen on a Windows PC, I have not bothered trying to find a Mac equivalent.

There is no way I could build a similar spec PC in a case anywhere near as neat and compact for close to the price of the Mac Mini. That said, a custom PC would have an internal TV tuner card, plenty of hard drive space and native HDMI output. There are some nice and funky HTPC cases for PC’s if you want to make it a feature but if space and design are restricted, the Mac Mini is ideal and with Plex being both high quality software and free, it is my HTPC system of choice. My 5 year old daughter has no problems using it either.