* Posts by dinsdale54

20 posts • joined 16 Oct 2015

Train-knackering software design blunder discovered after lightning sparked Thameslink megadelay


Re: Load shedding?

Yup, pretty much.


iFixit surgeons dissect Apple's pricey Mac Pro: Industry standard sockets? Repair diagrams? Who are you and what have you done to Apple?


Re: How much did apple have to do with it?

It's a custom designed case containing a custom designed motherboard with mostly standard chipsets and a couple of Apple specific chips. There are a lot of tech companies in Austin, including Texas Instruments who make a bunch of stuff for Apple.

'Not normal': Dell and NetApp price war puts crimp in Pure Storage revenue growth


Re: There's always some excuse to explain why storage is having the Hell commoditized out of it...

These days, "doing well" means not failing. As you say, the storage industry is mature and being commoditized. Investment is long gone. There are no storage startups being funded unless it's software only/cloud.

IT contractor has £240k bill torn up after IR35 win against UK taxman


Way to miss the point.

The whole issue with IR35 is that HMRC wants to tax contractors as employees of company they are providing the service to while not allowing them the benefits that fulltime employees of said company receive.

Therefore making provision for sick pay etc has to come from income that has already been taxed for that purpose.

Reaction Engines' precooler tech demo chills 1,000°C air in less than 1/20th of a second


I think the relevant bit is that air at mach 5 is what rocket scientists refer to as 'very very hot' :)


As it's a jet engine, the air must be subsonic to go through the compressor. Jet engines with supersonic airspeeds are SCRAMJETs and is still a very experimental technology.

So yes, it's getting slowed down a lot however this is relatively well understood.

I assume the impressive cooling is required for engine efficiency, including not melting immediately

Deloitte man kept quiet at Autonomy's internal audit committees, says scrutiny chairman


Re: Selling direct?

You are correct, this was and still is a common practice.

My last company had a 100% channel model. All orders were fulfilled though a partner - who made a decent margin - even if all the customer contact and deal making was done by the vendor.

Another disappointing quarter for Pure Storage as expanded sales team fails to close large deals


Better have a cloud strategy

After 20 years at storage vendors where you were competing with other storage vendors the competition is now cloud. Previously you just had to be better than the incumbent storage providers, EMC, HP, Dell NetApp, IBM etc. That's usually quite achievable for a startup with a half decent product - Pure has done this exceedingly well.

Now you are competing with AWS, Azure, Google etc and the move from CapEx to OpEx. Pure's announcement about targeting Dell/EMC refreshes is a tougher proposition than it was even a couple of years ago. Several of the existing storage vendors have better cloud offerings than Pure does so for companies moving that way. they are less likely to ditch the incumbent for another non-cloud vendor.

If the growth slows without a plan for being profitable, the share price is going to take a battering.

<edit> I just checked the after hours trading. The share price has taken a battering.

UK's Dyson to vacuum up 300 staffers for its electric car division


Dyson have been doing a lot of work on electric motors for the last few years, particularly permanent magnet motors. A lot of this should be directly applicable to EVs - witness Tesla's recent move to permanent magnet motors for the model 3. If you have already solved many of the difficult problems - control, efficiency - starting the motor in the right direction etc. then scale the torque up and revs down and you have a very efficient EV motor.

Magic hash maths: Dedupe does not have to mean high compute. Wait, what?


Re: Dunno what he’s on about...

It's not the calculating the hash that's the hard work, it's scanning the hash table looking for matches for every incoming write. Say you have 1TB of data and 50% of the 4K blocks are unique. If you are using a 256bit hash (SHA-256) that's 8GB of space for the hash table and you have to search for a match for every incoming block. Hence the need for clever ways to minimize the above. Some implementations are much more efficient than others.

That's an overly simplistic example but points out where the issue lies

Another day, another British Airways systems screwup causes chaos


BA (well, IAG) is trying to sell itself to Qatar who want control. Therefore they are trying to bump up short term profits at the expense of everything else - reliability, quality, service, reputation etc - through the traditional methods of cutting costs like a bastard. It may well terminally damage BA's reputation but it will make the board members & shareholders rich in the short term which is the primary goal.

Gartner's Magic Quadrant flashes up pure flash array-pusher prize-plucker. It's Pure


This shows how powerful Gartner are. Several vendors have introduced all flash only variants of systems that could otherwise use spinning disks as well solely to get in to the Gartner report. The customer just ends up with a less flexible system and more pointless part numbers.

Software glitch led to London Ambulance Service outage – report


If you didn't have any IT expertise at the top, they may well not have realised that you need a decent Oracle DBA to run an Oracle database.

Good Oracle DBAs aren't cheap as Oracle is pretty complex.

Facebook in the dock: Web giant faces trial for allegedly ripping off data center blueprints


Re: Meanwhile, back at the ranch ...

GPL for a start.

If you remove the GPL licence from the code - as Goldman allegedly did - you are in violation of it, regardless of any distibution.

Microsoft's Azure cloud feels the pinch in price war with Amazon's AWS


Re: I think the author is confused

The SLAs offered by all the main providers are pretty poor. All offering around 99.95% service availability. Vendors would be laughed out of your typical large enterprise if you offered that.

AWS v Oracle: Mark Hurd schooled on how to run a public cloud that people actually use


Re: "I’m proud to say that AWS hasn’t had a regional failure in recent history"

Far more recent than that!


Amazon might try some alternate reality and claim it's not a 'regional failure' but if you had any system that relied on S3 then you were SOL. AWS/Azure/Google are all very interesting and useful tech but reliable and cheap aren't words that can be used to describe them.

Larry Ellison today said really nice things about rival Amazon's cloud


Re: Could get interesting

This is kind of self answering. People use Oracle's software despite Oracle's behaviour, not because of it. The software is good enough that Oracle can treat its customers like that.

BA 'offers' IT bods extra leave, flexible working - unpaid of course


done before

They did this in the early 00's recession. A relative used it to take 3 months off and travel the world with his family - with cheap BA flights of course. It's a pragmatic way to save money in the short term, but not a long term solution

Zero. Zilch. Nada. That's how much Netflix uses its own data centres now


Re: What Netflix produces?

For all major markets, Netflix put their own hardware in to ISPs to deliver content. Basically a rack full of compute and disks. They push content updates once a day. For smaller countries, AWS makes a lot of sense, especially when you first offer a service. I assume there's a crossover point when it's worth swapping from AWS to your own kit.

Minicab-hailing app Uber is lawful – UK High Court


Utterly fact free post.

As has already been pointed out, Uber drivers are licensed and insured the same as any minicab. The Uber app will tell you the cost before you accept, like a minicab company, only better. All the Uber drivers I have spoken were pretty happy with it.


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