Earlier quoted context omitted.
The reason hardware support for virtualization is necessary on x86 is only because of some design decisions dating back to the 80286.
Can you elaborate?
HP's new ARM-based Servers
51–60 of 76 posts
Re: HP's new ARM-based Servers
#52I think this is a highly significant move by ARM. It's amazing when you speak to datacentre people and they tell you how much of your server charges go on electricity and cooling. My recent example was £200 extra/year for an additional Opteron 6128 and £400 extra/year for the increased power usage from that processor! There is an obvious gap in the market for low power, low heat generating, high memory throughput ser…
No virtualization ability. No addressibility of more than 4G is a killer for some apps. CPU horsepower density isn't quite as high as they say: at 72 quad-core A9's per rack unit vs. 6.4 Xeons in a comparable 10U blade server. A Nehalem clocks about 3x faster and runs about 1.5-2x faster per clock than the A9 for "random server logic" workloads, so this appears to be higher by only a little bit. Power consumption isn…
Perhaps it is time for distributed RDBMS with datastores purely in RAM.
Re: HP's new ARM-based Servers
#53Earlier quoted context omitted.
No kidding. Clearly they're using IIS, which has the equivalents of mod_rewrite built-in. Why would they keep using such awful URLs? The only other major company still using cruft like that I can think of is IBM. Totally unnecessary.
Amazon is up there too. http://www.amazon.com/gp/product/B003O6G5TW/ref=s9_hps_bw_g6...
Luckily, everything from /ref= on is optional, and the alphanumeric code that comes after product is an actual product code. Replace it with the 9-digit ISBN for a book, and you'll get the book, for example.
Re: HP's new ARM-based Servers
#54So.. another blade server solution? I thought RLX tried this a decade ago, and went home bankrupt?
Re: HP's new ARM-based Servers
#55Just yesterday I was dreaming of small server racks composed of Raspberry PI's and BeagleBoards. Wish I had a few million lying around… or a cheap dedicated link at home.
Re: HP's new ARM-based Servers
#56So.. another blade server solution? I thought RLX tried this a decade ago, and went home bankrupt?
RLX really needed scale-out software and DevOps, but neither was widely available in 2001. Also, Calxeda is claiming a larger advantage than RLX did.
And wasn't RLX technically a success since it was bought by HP and then canceled?
Re: HP's new ARM-based Servers
#57Most are overlooking the change in thinking with these servers.
Think of servers with ARM processors in the pipeline which will come with 64+ cores, available for cellphones. The biggest problem in a datacenter is not space or processing power, it's energy consumption and heat dissipation. Walking into a datacenter gives you the feeling that the place looks empty with plenty space to fit 6x more servers. Today this can't be done because there's no capacity for more air conditioning to cool more servers in the building.
Also, the way of processing has changed in the last years, for example with map reduce, which makes having many cores way more useful than a single server with a massive 5 ghz core. Actually today, many servers are IO bound, not CPU bound. There's exceeding cpu capacity.
Think of having a server, with 64 ARM cores and and array of SSD's. This won't heat up as much as mechanical disks or today's cpus, with very small IO constraints due to SSDs speeds and far more parallel processing power.
Re: HP's new ARM-based Servers
#58Most are overlooking the change in thinking with these servers. Think of servers with ARM processors in the pipeline which will come with 64+ cores, available for cellphones. The biggest problem in a datacenter is not space or processing power, it's energy consumption and heat dissipation. Walking into a datacenter gives you the feeling that the place looks empty with plenty space to fit 6x more servers. Today this c…
Our solution to infrastructure/performance problems which dates back a fair way is to simply throw more hardware at problems.
Lately we are starting to hit a limit - a power limit. We are actually limited in the data center we use not by space, but by our power consumption, so we now have a pseudo KPI of "reduce our power usage". It's a good goal, but certainly not one I had ever contemplated.
A (future) stumbling block is our reliance on x86. Would love to be able to move to ARM =\
Re: HP's new ARM-based Servers
#59Just yesterday I was dreaming of small server racks composed of Raspberry PI's and BeagleBoards. Wish I had a few million lying around… or a cheap dedicated link at home.
Don't forget some BeagleBones for good measure. http://beagleboard.org/bone
Re: HP's new ARM-based Servers
#60Most are overlooking the change in thinking with these servers. Think of servers with ARM processors in the pipeline which will come with 64+ cores, available for cellphones. The biggest problem in a datacenter is not space or processing power, it's energy consumption and heat dissipation. Walking into a datacenter gives you the feeling that the place looks empty with plenty space to fit 6x more servers. Today this c…
A FusionIO ioDrive2 SSD card is 24W.
Not huge but if you add multiple of these cards in a server, the power adds up.