98 posts • joined 13 Aug 2009
Re: Who says they can?
Given DigitalGlobe are a U.S. based firm and that they are launching for a polar orbit from a U.S. military base I think it is perfectly reasonable for the U.S. government to limit what they are doing.
Want to set up a company outside the U.S.A., build your satellite outside the U.S.A. and using components that are not under U.S.A. export restrictions and then launch using none U.S.A. launch vehicles outside the U.S.A. you would be good to go selling what ever resolution imagery you want. That is presuming other governments don't also put restrictions on what you want to sell...
Mobile coverage in my house is hopeless due it would appear to some sort of iron (aka magnetic) based compound in the bricks. However a femotocell soon fixes that and all the networks will provide one if prompted. Even at £100 it would be small beer in comparison to the cost of a house.
What is more important is good internet connectivity, aka can I get FTTC, FTTP or cable. Clearly the people in the survey are rather clueless.
3G is pointless for voice
So in an office environment a 2G voice signal is just fine because for data there will likely be WiFi which offers better throughput for a lower cost.
Don't hook it to a credit card
If you give your kids a tablet of any description that is connected to a credit or debit card and they are not 100% supervised then you are asking for trouble.nn
Take a look at the Shimano Nexus and Alfine range of hub gears available in 7 and 8 speed versions. They are aimed at commuter bikes however, their big selling point being the much lower maintenance and the possibility of using full chain guards to reduce chain maintenance. They introduced an electronic shifting model last year. There are also 8 speed Sunrace Sturmey Archer hubs these days.
Re: Interesting ruling, but
The Treaty of Versailles confiscated the Asprin trademark as part of war reparations from Germany. So in USA, UK, France, Russia there is no such thing as brand name Aspirin. One presumes that parts of the world that where in the British Empire in 1919 can also claim the trademark is not valid, as could fragmentary parts of the victor nations so Ireland, Belarus, Ukraine etc. are also covered.
No iron in hard disks
It has been some time since a hard drive had any iron in their platters. They started being made out of aluminium and then even glass many years ago, and the coatings don't contain iron. Why are they referred to as spinning rust?
Personally I would have though an updated AC100 with a 1368x768 resolution screen and a Snapdragon 801 processor (quad core 2GHz ARM with 2GB RAM and 16GB flash) would have given something that stands out from the pack of me too Chromebooks.
Re: For marketroid values of "archival"
Funny the archive life on the side of my LTO tapes says 30 years. You probably want to shift the data onto newer tapes sooner because of issues with tape and drive compatibility, so if your data is on LTO3 you probably want to move them to LTO6 in the next few years. That said I did a several hundred TB LTO1 to LTO4 migration five years ago. Anyone doing large scale archiving should have a tape robot so they can just load the new tapes, set the software off and forget about it. Took several months but so what.
IPv6 before CGNAT
Personally I would like to see a law that means ISP's have to provide IPv6 *BEFORE* they are allowed to implement carrier grade NAT. That would force the ISP's to get off their backsides and actually implement IPv6 rather than putting it off.
I would also like to see a law that forces equipment manufactures to offer firmware updates to things like network printers to offer IPv6 if they don't already. Say anything produced in the last five years.
RAID6 even with 4TB drives gives rebuild times that are bigger than one would wish. Fortunately there are solutions to this, Google for "dynamic disk pools" to see one fix, it is like 8D+2P RAID6 but is done at the block level. Of course this is for large numbers of drives.
Re: Time to Migrate.
Lets get past this no GUI by default is total rubbish. Server core is the Linux equivalent of running an X11 server with TWM and some xterms, except they are newer and prettier. You still need a video card, with appropriate driver and you still get a graphical interface. It is by no stretch of the imagination a text interface that could be redirected over a serial port for a headless configuration.
Anyone that claims that server core has no GUI has absolutely no concept of what that actually means.
Not first Sony with IPS screen
The Z1 Compact has the IPS screen as well and predates the Z2.
Re: This one *is* different
I was surprised as well. LIDAR is surely a much more useful application than a smartphone projector, and to go mainstream my self driving car is going to need something a bit more compact than the current mechanical scanning LIDAR variants that Google and the like are using.
Given it is a SAS drive and HGST's 600GB 10,000rpm drive is ~200GBP, then a lot lot cheaper than the equivalent 400GB or 800GB SAS 2.5" drive which for 400GB is north of 1000GBP at the moment.
Yeah SATA drives are cheaper but you don't get a dual ported interface or Data Integrity Field (DIF) 520 byte sector sizes. If you don't know why either of these might be important you are not qualified to comment.
Re: broken RAID
LSI and presumably now NetApp have patents covering that. So potentially the whole array has to go offline because just reporting a bad block on the ones with the parity errors is not possible do to patent restrictions.
Note I have personally suffered a parity error on a RAID5 rebuild on an LSI/NetApp Engenio array. It was an interesting case, involved some maths to work back from the block on the RAID array that was duff, through the LVM and then the ext3 file system to find the effected files. Able to then mark the blocks as good again in the array controlled (which left them as zeros), delete the files and restore them from tape.
Anyway don't blame Dell as that is covered by a patent.
Re: Interesting if cheap ...
GPFS native RAID is not going to be cheap because it is only an option if you buy your servers, disks and shelves from IBM who are not known for selling cheap disk arrays. Last time I looked you even had to buy IBM's racks. Plus it only really works if you want file system with your storage. If you want block storage go look elsewhere. A Dell MD3x00 will be much much cheaper and with the DDP give you all the same benefits.
The way to think of it is you take say a 4U 60 disk enclosure stuffed full of disk, but instead of doing RAID6 over a whole disk you break the disk up to say 1GB chunks and then do a 8D+2P RAID6 on the chunks which you scatter over all the disks. You then LVM treat the RAID6 chunks as PV's and throw then into a VG and carve LV's out of them. Every disk is then left with some of the 1GB chunks free, enough to cope with however many "hotspares" you specify. When a disk then fails all 59 remaining disks are involved in the rebuild of the damaged RAID6's of disk chunks. The rebuilt bits then get scattered over the remaining disks. Obviously you need to keep track so no RAID6 has more than one chunk on a single drive.
NetApp have something similar in the Engenio/SANtricity range called Dynamic Disk Pools. IBM's XIV also did something similar but using RAID1 which is a bit rubbish for storage density. Of course none of this comes into play until you have a large number of disks. As such traditional RAID is not going anywhere fast for most people.
My guess is that the real problem with a render farm hand off is the interconnect. Rendering frames for a movie is trivially parallel; each frame can be rendered utterly independent of any other frame, so while a node is rendering a frame it has no requirement to communicate with any other node, till it gets to the end when it needs to upload the frame to a central storage area. You can happily do this with gigabit ethernet.
However for a real HPC cluster that would not cut the mustard and you need high speed low latency interconnect, either Infiniband or something similar. Retrofitting this into an old system is simple madness.
Universities and campus agreements
Something not mentioned is that in the U.K. at least a University with a campus agreement (that's all of them as far as I can tell) get Office365 thrown in for free. Quite a few have given up on student email at least and stuffed it all into the cloud. Some have pushed all their email into Office365. The value proposition is very very compelling.
Re: Nice to see
So he is spending illegally gotten gains (remember Microsoft is a convicted monopolist) to rehabilitate his image and I am supposed to like him for doing that?
My personal feeling is that the Muslim bastards who are hindering the Polio eradication program in Afghanistan, Pakistan and Nigeria as some sort of Christian/Western plot are utterly evil and should all be rounded up and tortured to death for crimes against humanity.
Re: spot on...
"What would really be truly revolutionary would be for the car manufactures to agree a standard for car "entrainment" systems with an open API so tablet/phones can link in seamlessly and be controlled from the steering wheel/stalk controls whether you have Andriod, iOS, Win8m or even Blackberry via an installed app"
It already exists and guess what it is called bluetooth. Your car stereo and phone need to support the correct bluetooth profiles for it all to work, but I can assure you that when they do it does indeed work.
Re: I should say so!
Except it does not appear to have been adopted by Dell in the slightest. I have for example just downloaded a BIOS update for a PowerEdge R810 released less than two months ago.
For any large amount of data doing it in house is hugely and I mean hugely cheaper. Over a five year period 500TB in the cloud will cost over two million USD. For that sort of money you can buy the storage build a data centre and pay the staff and still have a significant amount of money left over. Then for the next five years the data centre comes free.
Then there is the simple fact that there is insufficient manufacturing capacity for flash to change the equation radically in the near future. It takes at least a couple of years to bring a fab online so capacity is known for some time ahead. Flash manufacturing capacity is only a couple of percent for hard disk capacity let alone tape.
Also where are the cloud providers going to store this data? Magic pixie dust or something?
In short neither disk or tape is going anywhere fast.
Actually I think you will find that the boiling point of water has not been 100°C for nearly 60 years now. Since 1954 it has been under standard conditions 99.9839 °C, and if you use the ITS-90 calibration it is even less at 99.974 °C. Kids of today eh.
Answer use better backup software
If you want to use joke backup software then yes you are going to be storing loads and loads of copies of the data at silly multiples. Back in the real world you could simply select better backup software, specifically TSM and ONLY store a primary and secondary copy of every version of a file and radically reduce the data retention multiple and have "virtual" backups going back to however far you want. Then if the file is a database or similar where the file changes every day, you just dedupe it.
Whoever wrote this article is either not a storage administrator, or an uninformed twit who should not be let near any storage again.
Symbian and Nokia
Personally I think Nokia should have followed a similar strategy. That is fitted a Android compatible interface to the best of class hard realtime OS Symbian. It can't have been a worse strategy than going for Windows Mobile.
Re: Obviously not for laptop drives...
Laptop drives in 24x7 and/or array operation are a massive no no in my 15 years of experience. You will only see 12-18months before they kick the bucket, 24 if you are lucky. The Hitachi 24x7 rated ones work better though they have a nasty habit of replacing failed drives with ones that are not 24x7 rated. The only reliable solution I have at the moment is to buy enterprise drives, Seagate Constellation drives seem to work well, but are 15mm deep.
Basically what has changed is we are not in a life and death fight where tens of thousands of people are dying against one of the most evil regimes in the history of mankind. The current war against terror really does not qualify.
Also anyone surprised by Tempora has a really short memory. It is not that long ago that towers where built to intercept the phone calls between ROI and the UK during the troubles.
Rubbish stats from Seagate
There are a number of 60 drives in 4U of space storage devices available from a range of vendors today that can be fitted with 4TB drives. As such this gives nothing extra in storage space, and given there is no form of RAID then the usable space offered by this system is worse than say a bunch of MD3660f/DCS3700 devices using dynamic disk pools.
The days of being able to have a list price for a 1TB SATA drive of £1500 are long gone, that is storage of spinning disks is much more mature and as a result margins are lower. Rather than tracking revenues it would be interesting to track number of shipped drive slots for example.
Assuming the prints where being handed down a long chain it is entirely reasonable for all or a large number of the prints to end up at one place, namely the end of the chain. That said these rumours have been going around for a while now, and until they are confirmed by the BBC I would take them with a bucket load of salt.
Re: Power Cuts
The other option is to very carefully select your microwave oven not to have a clock. I am resigned to having to set the time on the oven but every other clock in my house either knows how to get the time from a radio signal or is now in the bin.
Re: Aircraft designers
Photocopies do go up to A0, it is just you are not used to such machines.
Windows based HPC will be a minority sport until Microsoft sort out the licensing. It is from personal experience a total nightmare and not cheap.
Re: Common sense prevails
Not only is he a common crook, he as been that way since the early 1970's when he was selling blue box phone phreaking devices.
Re: @ David Neil Article title
Actually it is already a well known fact that Steve Jobs is a crook, he committed perjury in court by swearing in court documents that it was impossible for him to be the father of Lisa Brennan-Jobs. To give you an idea of just how serious a crime perjury is, in England and Wales it carries a maximum sentence of seven years. In the U.K. Jobs would have almost certainly served time for what he did looking at the CPS website he could have expected three years for that stunt.
Then there is the phone phreaking where he was selling blue boxes. The short of it is that there is absolutely no liable in calling Steve Jobs a crook, because he most emphatically was one. Hardly surprising then that even with huge wealth he would continue to break the law to add to his wealth.
Re: the problem with boats
Actually I think you will find that the USA is quite capable of shooting down a passenger airline, and it does not even need to be in international air space for them to do that.
Power sneaked in via earth wire
Do some Googling but it would appear that the method for the "anomolous" heat generation has been twigged. As it is all a black box you wire up a simple electrical thermal element and then use the earth wire from a normal plug that has been "specially" wired along with the socket in the wall to draw power. You then happily separate the wires out in the flex but a clamp meter over the live and measure the current/voltage and get a power draw that is less than the heat output. Meanwhile the power for the "anomolous" heat generation is being drawn down the earth wire and shares the common neutral.
Rossi has been challenged to do a test where the power levels in all three wires supplying the apparatus are measured and he has refused. I have quickly skimbled the paper and the power measurement section makes no mention of measuring the power levels in all the cores connected up.
Given Rossi's history of fraud (Google it but there is a failed thermoelectric generator using waste heat and a failed oil from waste firm) one has to take him with a very large pinch of salt.
14" ideal for older eyes
The problem with the 11" displays is that for aged parents the small screen size is an issue. Simply displaying the same resolution at a larger size makes it much easier for those suffering from the effects of old age on their eye sight to read the screen. As such the 14" HP Chromebook is ideal for those aged parents that just want to browse the web, send a few emails and write the occasional letter. For these users a Windows laptop is just something to go wrong that produces endless support problems.
Only two usb sockets
Title says it all, only has two USB3.0 sockets, and there is nothing internal. Why is that important you might ask, well I have /boot on a small USB flash drive so that when I do my Linux software RAID I can put /boot on the flash drive and just do it whole disk and not mess about with partitions. The closest thing to a perfect home server board otherwise, well more SATA ports would be nice.
What I don't understand about these smart meters is why they have been made reliant on GSM/GPRS aka 2G mobile signals. What happens in a few years time when the mobile phone operators decide to ditch their 2G networks because they are not profitable to operate? Also what happens in a house like mine where there literately is no mobile signal indoors (bricks it is constructed from seem to have a high content of magnetic material for some reason) unless you are next to a window?
Surely the sensible thing would have been to do supply side powerline networking. You only need a low bit rate for a smart meter so distance can be improved and it is not reliant on a service being provided by a third part that they can stop any time they want. Given a electricity meters usually last decades this was a dumb move.
Re: Fingers crossed...
20,000 short range rockets pre targeted at all 20,000 artillery pieces? That said I would expect that most of the artillery pieces are arrange in groups so you would need a lot less than 20,000 rockets. The idea that the North Koreans can unhindered keep pounding Seoul with an artillery bombardment and reduce it to rubble is complete fantasy.
I think you will find that Gerald Buller works at Heriot Watt University which while located on the outskirts of Edinburgh is distinctly not Edinburgh University which is another completely separate institution all together.
Chromebox is cheaper
Really get a Samsung chromebox for £250 which includes 16GB od SSD storage and 4GB of RAM. In addition the PSU is built into the box no some separate add on.
LTO1 tape drives are still available on the used/surplus market. If you are using a decent software package to handle your archives and are sensibly keeping all your tapes in the library, and having multiple libraries in separate locations, then the backup/archiving software will take care of migration from one tape technology to the other, with the tape robot in the library doing the shuffling of all the tapes between the drives and the slots with no human interaction once you set it away. Might take some time a.k.a. a couple of months, to complete but if there is no human interaction required in the process that is not a problem.
Lies from SGI
That machine will have 2.5 times the capacity per spindle compared to Oracle, IBM, and Fujitsu arrays in the same class.
Given that IBM sell exactly the same hardware as the DS3512, DS524 and DCS3700, I am keen to know how SGI believe that they will be offering anything better than IBM?
It's about longevity
While I am sure the Quantum tape library is more dense that the competing options, will it still be around in 5 years or even 10 years. A TS3500 purchased 10 years ago (as a 3584 as it was back then) could have gone through several tape drive technology changes, would still be fully warranted from IBM for a maintenance contract and could still be upgrade and have more frames different drives etc. added to it all in incremental stages as the budget allowed.
If you read the specification for the thing on the HP website you will see that it comes with a 16GB SSD. To my mind this is perfect for parent, grandparent where deteriating eyesight due to old age makes the existing Chromebooks screens are too small. Yes it has no more pixels, the fact that they are bigger makes it easier to see for someone wearing reading glasses.
Re: Glass platter
A 10krpm drive with a SAS interface is not aimed at laptops. Besides which IBM/HGST have been shipping glass platters for years.
- Twitter: La la la, we have not heard of any NUDE JLaw, Upton SELFIES
- China: You, Microsoft. Office-Windows 'compatibility'. You have 20 days to explain
- Apple to devs: NO slurping users' HEALTH for sale to Dark Powers
- Is that a 64-bit ARM Warrior in your pocket? No, it's MIPS64
- Apple 'fesses up: Rejected from the App Store, dev? THIS is why