Sorry but Chicago sits on like half the cross-continental backbone, I don't think they are hurting for bandwidth, they mentioned dual 10G uplinks, that's plenty for most apps other than streaming video.
I don't think any of the staff lived in cali.
Taco and Hemos were from Michigan and their sysadmin was likewise from the midwest. With todays tech who the heck has to be physically close to their servers anyways?
If the webservers are anything like our HP BL406c's blades then about 3kva for the webservers. For the DB servers if they are single quad core the probably around three hundred watts each with a decent amount of disks onboard. This is with moderate use, slashdot probably has bigger peak load so maybe increase those numbers 40% for more heavily loaded CPU's and disk.
Q-tips+rubbing alchohol is what I use to clean the gunk off heatsinks. Remove the fan either by prying it or unsrewing it, clean the tips from the front and back then clean the fins on the heatsink.
The cost of almost all other commodities is driven by the cost of energy! It takes energy to mine and refine metals, it takes energy to fertilize, harvest, and transport grains, etc. Of course there has not been a huge move in the cost of energy worldwide, it is mostly the devaluation of the dollar increasing the cost of oil for US consumers, the cost in Europe for instance hasn't significantly risen due to the strength of the euro vs the dollar.
Hate to reply to myself but I just re-found the Cisco antenna calculator and according to it you get fine signal quality at 620m using a 5.2dBi omni and only 10mW at the amp which even the crappiest of cards can handle. This is even assuming 20ft of standard loss cable at each end for inside mounting of the AP's. Bump it up to 50mW which is common for even cheap radios and you can get 1380m from the same setup, 100mw and it's good for 1,960m. Distances are multiplied by about 2.5x for a 9dBi patch.
For that short a distance I would actually go for a multi-part patch antenna at just a few dB. The reason is that the higher the gain the smaller the target and hence the more failure prone the solution. Wind, rain and leaves are a lot more likely to mess up a solution with a 1m cone for a radiation pattern than they are a 10m field offered by a patch antenna. Also it's easier to fit a patch antenna under an overhang then it is a dish or yagi and so ice and corrosion from rain are less of a problem.
Why? You can already do 25+ miles with a 100mW radio and a 24dBi antenna without a HAM license. Cisco has a certified kit that they conservatively say will do 25 miles if you have a high enough tower (will probably require a zoning permit in most jurisdictions).
Probably not. When I worked at Cisco we tested a bunch of stuff out to 150m and most equipment worked even over cat3. However almost none worked at 200m even over cat5e.
Yeah, that's why when I worked for Cisco we had multiple strobe lights and a very loud alarm (think fire alarm loud) outside of both doors to the datacenter, kind of hard to miss those. Of course where I am now we just have the transfer switch and UPS email and page us whenever there is a power event.
Uh, coal and tar sands are kind of a real problem as there are huge impacts on the environment both from mining them and from using them. Probably 90+% of the new capacity brought online in the last 30 years has been coal, and much of that growth has been to power electronics. Datacenters and corporate computers are a non-insignificant chunk of that. I know my datacenter for a midsized company probably draws as much power as the homes of all of the IT staff combined. Transportation is only 28% of the US energy puzzle, and as long as we keep relying on dead plants we are going to have a problem, coal that isn't used to needlessly power datacenters today can be turned into synthetic oil in the future. Hopefully not for transportation but for plastics and pharmaceuticals, where it is used as a feedstock rather than for energy production.
The selective advantage is obvious, a more pretty display means more mates means more offspring. It's actually one of the classic examples of a selective advantage. The fact that you didn't pick up on it means you probably flunked Bio 101, or you are intentionally ignoring it to further the ID bullcrap. I can't believe it's been over two hours and you haven't been called out, slashdot is really slipping.
A well setup database CAN'T be brought down by any type of query, especially when you know ahead of time they might by running bad SQL. In Oracle you can rate limit I/O, cpu, temp, etc per user so just put in reasonable limits to what their user ID can do and put them in the lowest priority queue for each resource and unless your own work is already pushing your database server to its limit then they shouldn't be able to really affect production. We have run into this issue in our own environment where we have about 10% of our user base who have an Excel plugin that allows them to do completely unstructured queries, the user that they proxy through is simply thrown into the lowest priority queue and so while they might use 40% CPU if the box is idle they get almost nothing if it is hammered.
There's isn't room for a 80x return for Yahoo, they are too big for them to grow that much, they would have to be bigger than the entire US economy to be that big. The only way that Yahoo's investors are likely to see anything like a 70% ROI this decade is a buyout.
meh, thowaway accounts are so painful to use. Google supports username+description@gmail.com addressing so as long as someone doesn't have a broken email validation script it's easy to give sites an easily filtered address while only having to login once. Plus it gives me the advantage of having proof of who sold my address so I can never do business with them again and badmouth them online.
Dude, you must be new here. 90+% of Ask Slashdot questions can be answered in some form by Google, people ask questions here to get a particular informed answer to the question from a group of fellow geeks.
Actually the top 2 natural disasters were the bubonic plague and the 1918 flu pandemic. We could use another good plague, there are entirely too many humans on this planet. I don't particularly want to be one of the individuals who die but since our numbers are growing to an unsustainable inevitability I don't see what else can be done, even the very strong central government of China has been most ineffective in stopping the rapid rise in population.
Meh, I've never seen a properly written spec sheet even with a roomful of smart IT people and business folk working together to craft it. I have very little reason to believe that end users will ever be able to connect pieces of code together to do what they want (if they even know what they really want without a skilled person teasing it out of them). There may be need for fewer code monkeys essentially reinventing the wheel but I think software architects and people who can interface business needs with technology effectively will always have a job.
Windows 2000 had Alpha support up until RTM. Windows 2003 and XP supports x64 and 2003 supports Itanium. The NT codebase is actually fairly portable and there are internal MS projects around running it on various architectures just to make sure they could move with the market if there was ever a huge move off x86/x64 (as unlikely as that is).
Classified != Top Secret.
Also encrypted email is pretty damn good for protecting data, it leaves only traffic analysis as a major source of information leaked.
Slashdot Mirror
Sorry but Chicago sits on like half the cross-continental backbone, I don't think they are hurting for bandwidth, they mentioned dual 10G uplinks, that's plenty for most apps other than streaming video.
I don't think any of the staff lived in cali. Taco and Hemos were from Michigan and their sysadmin was likewise from the midwest. With todays tech who the heck has to be physically close to their servers anyways?
Then you'll really get a kick out of our production financials:
DB
4xOperton 8220
32GB ram
Dual FC HBA's
110 disk SAN
Dual TOE ethernet
Batch
4xOperteron 8220
12GB ram
Logic
2xOpteron 280
12GB ram
Citrix app servers
8x DL360 G4p with 4GB ram and dual Xeon dual cores
Citrix reporting servers
17x BL460c 2x Xeon 5345 with 4GB ram
There's a few more systems involved but that's the bulk of it =)
If the webservers are anything like our HP BL406c's blades then about 3kva for the webservers. For the DB servers if they are single quad core the probably around three hundred watts each with a decent amount of disks onboard. This is with moderate use, slashdot probably has bigger peak load so maybe increase those numbers 40% for more heavily loaded CPU's and disk.
Q-tips+rubbing alchohol is what I use to clean the gunk off heatsinks. Remove the fan either by prying it or unsrewing it, clean the tips from the front and back then clean the fins on the heatsink.
The cost of almost all other commodities is driven by the cost of energy! It takes energy to mine and refine metals, it takes energy to fertilize, harvest, and transport grains, etc. Of course there has not been a huge move in the cost of energy worldwide, it is mostly the devaluation of the dollar increasing the cost of oil for US consumers, the cost in Europe for instance hasn't significantly risen due to the strength of the euro vs the dollar.
Hate to reply to myself but I just re-found the Cisco antenna calculator and according to it you get fine signal quality at 620m using a 5.2dBi omni and only 10mW at the amp which even the crappiest of cards can handle. This is even assuming 20ft of standard loss cable at each end for inside mounting of the AP's. Bump it up to 50mW which is common for even cheap radios and you can get 1380m from the same setup, 100mw and it's good for 1,960m. Distances are multiplied by about 2.5x for a 9dBi patch.
For that short a distance I would actually go for a multi-part patch antenna at just a few dB. The reason is that the higher the gain the smaller the target and hence the more failure prone the solution. Wind, rain and leaves are a lot more likely to mess up a solution with a 1m cone for a radiation pattern than they are a 10m field offered by a patch antenna. Also it's easier to fit a patch antenna under an overhang then it is a dish or yagi and so ice and corrosion from rain are less of a problem.
Why? You can already do 25+ miles with a 100mW radio and a 24dBi antenna without a HAM license. Cisco has a certified kit that they conservatively say will do 25 miles if you have a high enough tower (will probably require a zoning permit in most jurisdictions).
Probably not. When I worked at Cisco we tested a bunch of stuff out to 150m and most equipment worked even over cat3. However almost none worked at 200m even over cat5e.
Yeah, that's why when I worked for Cisco we had multiple strobe lights and a very loud alarm (think fire alarm loud) outside of both doors to the datacenter, kind of hard to miss those. Of course where I am now we just have the transfer switch and UPS email and page us whenever there is a power event.
Uh, coal and tar sands are kind of a real problem as there are huge impacts on the environment both from mining them and from using them. Probably 90+% of the new capacity brought online in the last 30 years has been coal, and much of that growth has been to power electronics. Datacenters and corporate computers are a non-insignificant chunk of that. I know my datacenter for a midsized company probably draws as much power as the homes of all of the IT staff combined. Transportation is only 28% of the US energy puzzle, and as long as we keep relying on dead plants we are going to have a problem, coal that isn't used to needlessly power datacenters today can be turned into synthetic oil in the future. Hopefully not for transportation but for plastics and pharmaceuticals, where it is used as a feedstock rather than for energy production.
The selective advantage is obvious, a more pretty display means more mates means more offspring. It's actually one of the classic examples of a selective advantage. The fact that you didn't pick up on it means you probably flunked Bio 101, or you are intentionally ignoring it to further the ID bullcrap. I can't believe it's been over two hours and you haven't been called out, slashdot is really slipping.
A well setup database CAN'T be brought down by any type of query, especially when you know ahead of time they might by running bad SQL. In Oracle you can rate limit I/O, cpu, temp, etc per user so just put in reasonable limits to what their user ID can do and put them in the lowest priority queue for each resource and unless your own work is already pushing your database server to its limit then they shouldn't be able to really affect production. We have run into this issue in our own environment where we have about 10% of our user base who have an Excel plugin that allows them to do completely unstructured queries, the user that they proxy through is simply thrown into the lowest priority queue and so while they might use 40% CPU if the box is idle they get almost nothing if it is hammered.
There's isn't room for a 80x return for Yahoo, they are too big for them to grow that much, they would have to be bigger than the entire US economy to be that big. The only way that Yahoo's investors are likely to see anything like a 70% ROI this decade is a buyout.
meh, thowaway accounts are so painful to use. Google supports username+description@gmail.com addressing so as long as someone doesn't have a broken email validation script it's easy to give sites an easily filtered address while only having to login once. Plus it gives me the advantage of having proof of who sold my address so I can never do business with them again and badmouth them online.
Dude, you must be new here. 90+% of Ask Slashdot questions can be answered in some form by Google, people ask questions here to get a particular informed answer to the question from a group of fellow geeks.
Be quiet or Alaska will split in half and make you the third largest state =)
Actually the top 2 natural disasters were the bubonic plague and the 1918 flu pandemic. We could use another good plague, there are entirely too many humans on this planet. I don't particularly want to be one of the individuals who die but since our numbers are growing to an unsustainable inevitability I don't see what else can be done, even the very strong central government of China has been most ineffective in stopping the rapid rise in population.
If you're running Windows 2003 then turn on volume shadow copies and let the users restore their own files, saves a lot of needless work.
Meh, I've never seen a properly written spec sheet even with a roomful of smart IT people and business folk working together to craft it. I have very little reason to believe that end users will ever be able to connect pieces of code together to do what they want (if they even know what they really want without a skilled person teasing it out of them). There may be need for fewer code monkeys essentially reinventing the wheel but I think software architects and people who can interface business needs with technology effectively will always have a job.
Almost every single person in my 35 employee IT department have children. The few exceptions are the young guys on the helpdesk.
BS, Scientific Atlantic and Motorola sell more STB's per month than Apple has sold Apple TV's ever.
Windows 2000 had Alpha support up until RTM. Windows 2003 and XP supports x64 and 2003 supports Itanium. The NT codebase is actually fairly portable and there are internal MS projects around running it on various architectures just to make sure they could move with the market if there was ever a huge move off x86/x64 (as unlikely as that is).
Classified != Top Secret. Also encrypted email is pretty damn good for protecting data, it leaves only traffic analysis as a major source of information leaked.