Whatever I decide, the server will be setup with a RAID 1+0 array for the numerous benefits it offers.
No, choose RAID 5 instead of RAID 1+0. Here is why:
RAID 5 offers more usable disk space. With N disks of X GB, RAID 5 gives you (N-1)*X GB while RAID 1+0 only gives you (N/2)*X GB.
The maximum theoretical I/O throughput is better with RAID 5 than with RAID 1+0. With N=4 it is 1.5 times better, and when N is large (>= 8) it tends to be twice better.
RAID 5 is more customizable than RAID 1+0, giving you more control on the usable space / total space ratio. For example with N=10 you can choose to create 1, 2 or 3 RAID 5 arrays while with RAID 1+0 you only have 1 choice (1 large array, creating multiple smaller arrays is equivalent to a large one).
Linux's RAID 5 implementation rocks and consumes MUCH less CPU than what people think especially with today's 2+ GHz processors. Kernel hackers have found their implementation to be WAY MUCH FASTER than most expensive RAID 5 hardware cards.
To give you a datapoint, I have set up multiple Linux software RAID 5 arrays on various servers with 10+ SATA disks, and the I/O throughput is over 500+ MB/s (enough to saturate 2 full-duplex GigE links !). At my previous work we had about 200 servers, all using Linux software RAID 5. And we have been MUCH MORE HAPPY than the previous setup where all of them were using hardware RAID 5. Moreover, Linux's software RAID 5 is more flexible (create arrays on ANY disk on ANY SCSI/SATA card in the system), more consistant (one and only one control software to learn: mdadm(8), no need to use crappy vendor tools or reboot into vendor BIOSes), cheaper (no hardware to buy), more reliable (no hardware card = 1 less hw component that can fail), easier to troubleshoot (plug the disks on ANY linux server and it works, no reliance on any particular hw card) and more scalable (spread the load across multiple disk controllers, multiple PCI-X/PCIe busses, or even multiple SAN devices).
It's amazing the amount of misinformation and misconceptions about RAID that is spread around the world. I hate to say it but 95% of IT engineers don't make good choices regarding RAID servers because of all those misconceptions.
The Slashdot story is misleading by saying "[Bill Thompson] knows that there are no Mac OS X viruses in the wild, and he doesn't believe there ever will be.". Actually Bill Thompson thinks it is possible but unlikely, quoting TFA: "I don't believe that Mac viruses already exist, and I think it's very unlikely that they ever will."
There is a big difference between saying "I don't believe in <foobar>" and "<foobar> is very unlikely".
Such subtle differences in phrasing totally explain why some people agree with Bill and some others disagree.
I am surprised that not a single comment (at a threshold of 2+) explains why Intel is dropping the Pentium brand. IMHO the reason is simple. In technical circles (corporate buyers, geeks, etc) the "Pentium" brand is immediately associated with "power consuming", "overheating" and "inefficiency". Intel's reputation has been badly damaged by AMD, and they are obviously trying to fix that by releasing new and better products (Intel Viiv, Intel Core Duo, etc) and changing their marketing strategy at the same time... IOW Intel is trying to fix their image.
Adam Anderson told News.com, 'It's basically a business decision for Microsoft. Like any other company, we have business priorities.
Yeah you see because and customer satisfaction and software features are clearly not #1.
(and don't run Windows for our infrastructure...well, unless you could Halflife as infrastructure).
Is your company currently searching for new talents ? I am quite good at this game. And Quake too. 5 years experience. Have managed team of 3+ player. I deserve this job !
Personally, I feel they are doing an "ok" job and seem to be getting better.
No, statistics show they are not getting better (though it looks like Microsoft is putting more efforts into improving their patch development process), read TFA: "In 2003, Microsoft took an average of three months to issue patches for problems reported to them. In 2004, that time frame shot up to 134.5 days, a number that remained virtually unchanged in 2005."
some critical flaws were patched in less than 3-4 weeks. While that may seem long, it is somewhat reasonable due to the amount of verification/validation necessary. People forget that 95% of the world runs on M$ so they have to really test a patch before releasing it.
HOW THE HELL can you be so indulgent ? Sure 3-4 weeks may seem reasonable but the average 135 days can in no way whatsoever be justified by this argument ("they need to QA patches"). Microsoft is a multi-billion-dollar software company who claim security is their number one priority. Microsoft is continuously releasing major versions of their softwares (Windows, Office, etc) each 24 to 36 months, you have to figure out somehow that 135 days, or 4.5 months, to fix a single vuln is way too long !
I cannot understand while people are thinking MS is "doing ok".
In a related news, U.S. stocks climbed today as shares of office furniture manufacturers like Chairs Inc. (CHR) rose and investors were optimistic that sells are going to increase in the area around Seatle. Based on the latest available data, CHR ended up 39.54 points, or 4.31 percent, at 1,880.95.
For those hackers who are already familiar with the forwarding features of ssh (-L, -R and -d options), and who are wondering what the hell is this new "support for tunneling", here is a hacker summary. Quoting TFA:
[This] new tunneling support allows you to make a real VPN using OpenSSH without the need for any additional software. This goes well beyond the TCP port forwarding that we have supported for years - each end of a ssh connection that uses the new tunnel support gets a tun(4) interface which can pass packets between them.
Tun(4) interfaces are indeed very convenient.
That's all folks !
'Three months ago, I would have said we were going to start tomorrow... And one month ago I would also have said we were going to start tomorrow. So...my current estimate is that we're starting tomorrow.'
IMHO he should change career. He would definitely do a great job managing software projects in the IT world.
--
Please prove this for me:
Prime factorization is NP-complete.
I failed. I miserably found an algorithm able to quickly & easily factorize any large number. Damn I am so ashamed that I am gonna destroy all my work, and live as an hermit in one of those distant mountain. How the hell could someone found an intelligent use of such an algorithm ? Pffft.
Well you see, my son, where people get very old, one day they have to leave their family and friends, to go visit a very old man living far away from here, in the mountains, in his small house. Then they never go back, but when that happens they are not sad, they are actually happy because they know they had a good life.
Slashdot Mirror
No, choose RAID 5 instead of RAID 1+0. Here is why:
To give you a datapoint, I have set up multiple Linux software RAID 5 arrays on various servers with 10+ SATA disks, and the I/O throughput is over 500+ MB/s (enough to saturate 2 full-duplex GigE links !). At my previous work we had about 200 servers, all using Linux software RAID 5. And we have been MUCH MORE HAPPY than the previous setup where all of them were using hardware RAID 5. Moreover, Linux's software RAID 5 is more flexible (create arrays on ANY disk on ANY SCSI/SATA card in the system), more consistant (one and only one control software to learn: mdadm(8), no need to use crappy vendor tools or reboot into vendor BIOSes), cheaper (no hardware to buy), more reliable (no hardware card = 1 less hw component that can fail), easier to troubleshoot (plug the disks on ANY linux server and it works, no reliance on any particular hw card) and more scalable (spread the load across multiple disk controllers, multiple PCI-X/PCIe busses, or even multiple SAN devices).
It's amazing the amount of misinformation and misconceptions about RAID that is spread around the world. I hate to say it but 95% of IT engineers don't make good choices regarding RAID servers because of all those misconceptions.
The Slashdot story is misleading by saying "[Bill Thompson] knows that there are no Mac OS X viruses in the wild, and he doesn't believe there ever will be.". Actually Bill Thompson thinks it is possible but unlikely, quoting TFA: "I don't believe that Mac viruses already exist, and I think it's very unlikely that they ever will."
There is a big difference between saying "I don't believe in <foobar>" and "<foobar> is very unlikely". Such subtle differences in phrasing totally explain why some people agree with Bill and some others disagree.
No. Because I am this kid.
I didn't know Jacques had skills in web programming, CGI & Ajax.
Dear CmdrTaco, I am sorry to have to announce this to you, but honestly I just don't care.
Love, this great guy.
I am surprised that not a single comment (at a threshold of 2+) explains why Intel is dropping the Pentium brand. IMHO the reason is simple. In technical circles (corporate buyers, geeks, etc) the "Pentium" brand is immediately associated with "power consuming", "overheating" and "inefficiency". Intel's reputation has been badly damaged by AMD, and they are obviously trying to fix that by releasing new and better products (Intel Viiv, Intel Core Duo, etc) and changing their marketing strategy at the same time... IOW Intel is trying to fix their image.
to recategorize The Birds (1963) as a 'documentary'.
This is just NOT fair.
How do I do now to get my share of Windows Media Player bugs for Mac OS X ?
Will someone think about those who need WMP vulnerabilities for Mac OS X ?
Here is a corrected version of the editorial:
Adam Anderson told News.com, 'It's basically a business decision for Microsoft. Like any other company, we have business priorities. Yeah you see because and customer satisfaction and software features are clearly not #1.
Can you do both ?
Is your company currently searching for new talents ? I am quite good at this game. And Quake too. 5 years experience. Have managed team of 3+ player. I deserve this job !
No, statistics show they are not getting better (though it looks like Microsoft is putting more efforts into improving their patch development process), read TFA: "In 2003, Microsoft took an average of three months to issue patches for problems reported to them. In 2004, that time frame shot up to 134.5 days, a number that remained virtually unchanged in 2005."
HOW THE HELL can you be so indulgent ? Sure 3-4 weeks may seem reasonable but the average 135 days can in no way whatsoever be justified by this argument ("they need to QA patches"). Microsoft is a multi-billion-dollar software company who claim security is their number one priority. Microsoft is continuously releasing major versions of their softwares (Windows, Office, etc) each 24 to 36 months, you have to figure out somehow that 135 days, or 4.5 months, to fix a single vuln is way too long !
I cannot understand while people are thinking MS is "doing ok".
This guy must be stupid.
Who was it already ?
Oh Aristotle... nevermind.
More info in this Microsoft Security Resource Center (MSRC) blog post.
No ! Balrogs == Bastards !
Let's drill the earth !
In a related news, U.S. stocks climbed today as shares of office furniture manufacturers like Chairs Inc. (CHR) rose and investors were optimistic that sells are going to increase in the area around Seatle. Based on the latest available data, CHR ended up 39.54 points, or 4.31 percent, at 1,880.95.
For those hackers who are already familiar with the forwarding features of ssh (-L, -R and -d options), and who are wondering what the hell is this new "support for tunneling", here is a hacker summary. Quoting TFA:
Tun(4) interfaces are indeed very convenient. That's all folks !
'Three months ago, I would have said we were going to start tomorrow ... And one month ago I would also have said we were going to start tomorrow. So...my current estimate is that we're starting tomorrow.'
IMHO he should change career. He would definitely do a great job managing software projects in the IT world.
Yep. Like the dog, Suprnova was on fire.
In Soviet Russia,
if you can't get broadband over power lines to customers,
you get customers over power lines to broadband.
I failed. I miserably found an algorithm able to quickly & easily factorize any large number. Damn I am so ashamed that I am gonna destroy all my work, and live as an hermit in one of those distant mountain. How the hell could someone found an intelligent use of such an algorithm ? Pffft.
Well you see, my son, where people get very old, one day they have to leave their family and friends, to go visit a very old man living far away from here, in the mountains, in his small house. Then they never go back, but when that happens they are not sad, they are actually happy because they know they had a good life.
Here is what I seriously think.