Re: Worzel Gummidge Technology
Catweazle holds the patent on electrickery:
107 posts • joined 7 May 2010
Catweazle holds the patent on electrickery:
> Of course not: all in-house IT systems have their DR plans fully documented, with a test failover performed monthly.
Actually we did a failover every two months on our in house system.
Yes, in-house IT can be a mess in many cases, but for any organisation with mission-critical parts kept in-house, *you* retain control of the specification and management of your live and redundant resources and can plan for business continuity and failover under your control and to a budget and resource pool that meets your requirements; perhaps even considering worse-case scenarios like hiring a shipping container data centre or, as in our case, being able to cannibalise other, less critical services, for parts while we wait for spares and an engineer to turn up within their 1/2/4/whatever hour response window.
As an example, we specced a standby system running a single unit tape backup/restore function (in case our autochanger failed) to have the same hardware as one of our primary servers. One day, the HP SAS caching controller on a live server failed and brought down the ERP system . While we were on the phone arranging a service call-out, another team member replaced the controller with the one from the 'spare' system. Total downtime was 12 minutes - and that was our only service break on that system in about 3 years.
When you rely on DR in a SAAS cloud-based environment, you won't likely have a dedicated engineer thinking about what they can do for you and your service - they will be taking a holistic view across the entire failed infrastructure and the solution will most likely take longer to implement unless its something simple like failed switch or router because whole systems/backups (ha - if they exist) will be being restored rather than just *your* systems and backups.
Readers with corporate phones who aren't allowed to install adblockers disagree.
Adblockers not allowed on corporate phone. Believe me, I tried (physically and trying to get approval).
Autoplay MS^H^H ads top of page.
Please at least detect mobile browsers and replace auto play ads with a static image.
Fkn annoying on my phone on train on way to work. Please stop this crap.
Many years ago, there was an attempt to give electronic engineers a shorter, snappy title akin to those what call themselved "electricians". The best anyone could come up with was "electroneers".
Whoa, your post had 1 stability event in 2. That's awesome!
> United, are your security people listening?
Nah, they are all stuck in a departures lounge somewhere on their way back from a conference because their flight was delayed/cancelled.
So...longer than an 8 hour wait at SFO before your flight to LHR is finally cancelled and you have to fly to Dulles and eventually arrive back home over one day late...and no you can't use our lounge while we dick around trying to work out how to get you home?
I refuse to fly United now .. all subsequent business flights have been with Virgin Atlantic.
This is not an HDS system; it's from HGST - totally different organisations.
These systems use Erasure Coding to scatter elements of the stored objects across multiple disks (or sites, if you have more than one system), and rebuild times are based on the time taken to reconstruct the elements stored on one disk.
There are boxes out in the field (previous generation ones) for which reliability data is available, plus there are the ones in the labs and development centres. Overall, it's possible to calculate reliability figures based on the MTBF/AFR and other parameters for individual components.
These systems don't use RAID. Check out 'Erasure Coding'
Exactly! The storage policies which determine how objects are stored, how many parts they are spread across on the disks and how many parts we can afford to lose (the 'safety') is customer configurable and determines the effective storage size.
/Currently sitting in a training course at HGST for this, so getting a kick etc...
It was the mid/late 1980s and we'd just installed a row of spanking-new IBM PC-AT computers (286 processor, no less) running a CAD application called Daisy on a *nix OS called Daisy-DNIX. In those days RAM was very expensive so not a lot was fitted and the systems swapped to disk constantly.
Everything was going swimmingly until some electronic-engineer-who-should-have-known-better fancied a brew-up and plugged his electric kettle into the end socket on a run of daisy-chained (heh!) extension leads. Of course, the fuse blew in the FIRST plug and all the computers went down.
The resulting mess caused by machines that were shut down incorrectly while busily swapping took a couple of days to sort out.
Those machines swapped so much that we were forever replacing busted disks.
Happy days. Have a read: https://en.wikipedia.org/wiki/Daisy_Systems
Just have to mention my Acorn System 1 from 1979; this was Acorn's first commercial computer. I received it about a year ago from someone who had it 'in a box under my desk somewhere'. The unit needed some TLC, but after a few PCB track repairs, a couple of replacement logic chips and some rework on the LED display ribbon cable it's up and working again - although I have to admit that I don't run it 24/7 and the display is not up to email or surfing the 'net.
You can see a pic of the unit here: http://forum.6502.org/viewtopic.php?f=12&t=3286&start=15
It's sitting on a pile of parts I have ordered so I can make a replica (when I get round to it!)
More info here: https://en.wikipedia.org/wiki/Acorn_System_1
Um..OK...you carry on there. We all went down the pub about 3 hours ago.
Meanwhile: anonymous faux engineer in stock shot burns the crap out of C109 for no apparent reason.
/Claims: "I was told to make sure the cap was on the hot side"
"The 77-page report dug up extra vulnerabilities in the once-popular encryption platform but say none are sufficient to undermine the jettisoned software."
"Sure, but then what do you do when this technology gets used out on the street or in shopping centres?"
Then it will be OK, because we will be reassured that, just like MAC address wifi tracking, it's being used to 'enhance our shopping experience'
I remember it well. I had a day job, but also worked on a freelance basis for PC User Magazine (RIP). I was sent 'something-or-other-utility' to review, only to discover that it needed Windows to run. I spoke to the editor; one quick phone call to Microsoft and a few days later, a stack of 5.25" floppies arrived containing Windows 1.0. Might still have them somewhere.
Could this explain why Paypal is borked for me and the missus had issues with our Santander card in M&S?
/Yes, we checked our balance.
At least the answer isn't (yet), "Can't find your bicycle? We have a great selection of bicycles; say 'yes' and we'll have a replacement with you tomorrow."
Did ya spot the logo on the front of the case?
So, did the Doctor pay for that guitar amp, or did he nick it from Magpie's electrical shop?
Edit: Aha.. I must keep up...
You mean you stopped at Z??
C:\Users\NK>subst [: c:\temp
Volume in drive [ is Windows
Volume Serial Number is 2CE3-394D
Directory of [:\
25/09/15 15:38 <DIR> .
25/09/15 15:38 <DIR> ..
06/08/15 03:48 <DIR> DCIM
09/09/15 07:53 25,385 draytools-master.zip
21/08/15 15:01 77,824 212 - Expenses Reimbursement Policy (UK).doc
08/09/15 17:03 1,217,081 Fast Serial Debugger Drivers.zip
** SNIP **
15 File(s) 13,082,375 bytes
4 Dir(s) 60,633,071,616 bytes free
I had a similar experience with some of the computers at a cement factory in Wellingborough. They were pretty wrecked.
One of my engineers serviced a machine that came back from a local farm's milking shed. The machine needed a complete clean out and the floppy disk drive was replaced. The engineer wrote up the repair description as "Half a field removed from computer".
In the early 1990s, I turned up at a Ministry of Defence (MoD) site in the UK to load some software updates onto a Netware server. Having duly passed through all the security checks, I was led to a busy office that looked like it was last refurbished in the 1950s.. "It's in the corner..' I was told. After about half a minute of trying to locate aforementioned server, I asked for some guidance..."Oh, filing cabinet - bottom drawer.. I'll remove the padlock." The padlock came off and a solid steel strap that ran from top to bottom through all the handles was withdrawn like Excalibur from the stone. There it was - a Toshiba T3200 with orange plasma screen running Netware and hosting who-knows-what secrets on its hard disk. A hole had been cut out of the back of the cabinet to poke through the power and data cables. "Most secure server in the building, I was advised".
So I got to work, crouched down in front of the filing cabinet. About 10 minutes later, a phone started to ring in the next drawer up - a muted bell, it's ring deadened by something..a war surplus sock maybe!? "There's a phone ringing in here", I volunteered. "Oh,we don't answer that one", came the reply.
If the UK authorities adopted the same mindset and paid a visit to my spare room (aka 'workshop'), they'd find several Raspberry Bombs, Arduino-grenades and nano-grenades, ESP8266 IoT wifi remote detonators, antistatic bags full of I/O bombshields, trays of PIC Microbombs, Serial Flashbang RAM, 7-segment LED countdowntoarmageddon indicators, LCD bomb displays ('your bomb temperature is ...nDegC'), USB-Serial TTL bomb interfaces, a 1979 Acorn System 1 6502-trainer-cum-bomb, some old EPROMS (EBOMBS, more like, eh!), ultracapacitor detonators...
The other week, while browsing through a computer and electronics surplus warehouse (aka bomb factory), I even picked up what can only be described as a hardly-used Sinclair ZXeightybomb.
The dead giveaway is the storage drawers containg piezo sounders and LEDs, which I use to make sure that all of the IoT...er...bombs that I construct make a telltale bleeping sounds accompanied by blinkenlights to ensure that they can be easily spotted under vehicles and in the noisewheel compartments of passenger aircraft. Hell, I even have WIRE.
I'll get me coat and turn myself in right now.
Sure, I'm delighted with the next-day banana delivery service from Amazon Primate.
I have something to tell you...I...I...signed up for something on my computer...and...I ended up getting fucked by people I'd never met before...I couldn't help myself...the thought of something new and different was so attractive I just had to give it a go...but now I feel like I have given away my soul and my private affairs are being exposed for others to pick over...Oh darling, I have made a terrible mistake and I feel there's no going back...everything that was private is now in the hands of others.
Dearest, please don't tell me you signed up at Ashley Madison!??
Oh no, dear - I...I installed Windows 10.
Darling, HOW COULD YOU!!??
"Richard Kiel Memorial Abend # 27"
Netware admins will know what I mean.
No, not *that* classic use of rm -rf, but..
The Financial Director where I worked a bazillion years ago needed to restore from tape the (b)ought ledger files to our SCO Unix box.
Unfortunately, he restored the files to the root of the server's disk, and rather than move them into place, he restored them again - correctly - and then issued rm -rf b* from the root folder.
Things were hunky dory for a few weeks until we rebooted the server during overnight routine maintenence and it didn't come up again.
One trip to the office later and I'd discovered that /boot was missing. Two hours pass and we were OK for the morning, but I had to wake up the MD to open the main office where the master tapes for the OS were stored in the safe.
For when you're hyped up over data security, but can't be arsed to buy drives with instant secure erase (ISE).
/I just know you're convinced the NSA has cracked that eh!?
Having just written a full JSON string parsing routine in bash, and then done the same in DOS BATCH to produce a pair of Linux and Windows plugins for Nagios that need no additional support libraries or installed tools or apps, I am getting a kick...
Yeah, I read El Reg reluctantly - I respect its pedigree and it does publish some good news/articles, but the puns (or poor attempts at puns) and stupid, random, CAPS in the headlines really take the shine off the overall experience; it's all totally unnecessary. I feel like I should wash my hands and sanitise the keyboard after a site visit.
>> The tiniest of the three, the Artik 1, is just 12mm square, which Samsung says makes it the industry's smallest IoT module.
Um, wouldn't that be something like an ESP8266-based module? The -09 variant is 10x10mm. Admittedly, it doesn't have a display output, but if you're an IoT sensor module why would you need that? The entire ESP8266-range does, however, have a full wifi stack and Tx/Rx module in silicon.
Don't get me wrong - Sammy can send me some free samples if they wish!
'sabout now the EPROMs (if any) start dropping the odd bit.
Yeah, about that: http://www.korg.com/us/news/2015/012212/
How about a barcode against every El-Reg article which we can scan with a smartphones to get an instant score of the amount of bullcrap in aforementioned article.
The IoT article would probably result in an integer overflow.
Someone PLEEEEASE give one of these to Lottie Dexter.
Applicants must be prepared to break or STICK the CAPS LOCK key on their PC or laptop keyboard
Tell the system architects we're aiming for SIX NINES, not NINE SIXES.
Nope - swallowed by Seagate,
Which disk have you made it to as of now?
"Hitachi is now the reliable-drives arm of Western Digital"
Sorta, but Hitachi sold the business and it became HGST (a Western Digital Company) and it's totally nothing to do with Hitachi any more.
Also, WD and HGST's drive plants and designs are completely separate and can really be counted as two separate manufacturing entities.
My primary test servers are ADA and GRACE
I have a home Linux server running Serviio and we've been streaming to my son's PS3 since we bought it when it first came on the market - it sees Serviio as a regular UPNP/DLNA server. Never had an issue with it.
Not quite - The Arduino generation can cobble together a bit of code and do a fair amount of simple analogue and digital interfacing, but ask them to throw together a Wien bridge oscillator, whip up a sensor interface with an instrumentation amplifier, generate a sawtooth with a UJT, or calculate the resonant value of an LC tuned circuit and you'll often get a puzzled look, followed by a quick trip to ebay to see if there's a shield for that.
It's modular hacking and not pure electronics - not that there's anything wrong with that.
Hobbies are changing - but not quite changing *back*.
True - I have just bought 100 x 220 ohm 1/4W 5% resistors from another UK supplier for £1.30