If you live in a city for instance, there are many who pass within a few yards of you each day who could give you a ride home, buy an item you're trying to sell,
No longer will drug dealers have to stand suspiciously on corners or in parks!
There is a phenomenon I call surface area of design, which is what you must understand about a design to know which part you care about. Does the fact that there are more than 200 methods mean anything to the setText() method?
This is an interesting point. I know a good bit of C++, but I don't often code in it. Why? Because I spend twice as much time looking up methods and classes than I do actually coding. Half the time I still later discover that I reinvented the wheel.
as cross-platform support is more of a burden than a feature; we can afford to cut off a small minority in favor of delivering seamless, facilitated content to the bulk of our client base.
Yeah, lots of neighborhoods around the country had that philosophy. Why bother with allowing minorities move in and lower the property values?
You missed my point, I'm not talking about this crippled music plan, I'm talking about real file fomats.
In a couple years, having a large music store worth of music on your hard disk will be no big deal. No one will want to pay $10 a month for something they can get free in a few minutes from their friends, without stupid restrictions.
320GB drives are coming out in a month or two. 1TB single disk is expected in 2004.
200,000 songs at 3 minutes a song average. 2 megs a minute for 160Kbps or so. A little more than 1TB.
So when 1TB hard disks are common, people will just do what we used to do in C64 days, and bring their ancient worthless 100-200GB hard disks to "user groups" and swap disks, assuming the "market forces" continue to stifle high bandwidth internet connections and high capacity magnetic/optical backup media. Or LAN parties, or whatever. Back in the C64 days, these weren't technically savvy people trading disks, they were normal computer users that just wanted the latest compilation of games.
Technology marches on. It's just a matter of time until that whole music store is easily contained on your laptop.
Netmar has a similar deal for $10 a month for 100 megs on shared Linux webhosting. Real shell, PHP, all that stuff. Responsive customer service, for example, their mail server was misconfigured to bounce null return paths, so I couldn't subscribe to sourceforge lists, they fixed it within a day of me pointing it out.
They might be what you are looking for. I use them personally for webhosting the links in my sig and URL, and for hosting my main email account. They do co-loc too, they have generator/UPS, all the standard stuff.
1. Realtek chipset network cards aren't that bad. I use them for my home lan almost exclusively.
2. High end ATA will always have the 3 year warantee (e.g. MaxLine II Maxtor). If you want small capacity and long warantee, you are SOL though currently.
3. They aren't aluminium, but Evercase cases from newegg are surprisingly high quality for their price. Fan over the CPU mounts on even the low end ones, extra drive bays on the floor of the case (you can mount something like 6 internal hard disks even in their second cheapest model). They even have a mount for a drive bay fan on the lower internal drive carriage.
I understand your point, about a dichotomy developing in the market, and what you say may become more true, but right now a lot of the examples you cited have useful workarounds for those in the know.
HTH.
Re:On SCSI drives and RAID controllers
on
IDE RAID Examined
·
· Score: 1
Yeah, I understand LUNs, I just am not sure whether 3ware uses them. I'm pretty sure they do not, even if you create multiple arrays within a single controller.
Re:On SCSI drives and RAID controllers
on
IDE RAID Examined
·
· Score: 1
I've never had more than one array per controller, so I don't know for sure, but I think everything shows up as a full drive as if it has a SCSI ID number. Call 3ware to make sure.
Different controllers obviously show up as different SCSI ID.
SCSI can have 15 devices per bus, but why buy more smaller and more expensive SCSI can have 15 devices per bus, but why buy more smaller and more expensive SCSI drives instead of getting fewer large IDE drives? Answer: Bigger isn't always better.
Smaller isn't always better either. If you need a multi terabyte array, and rotational latency isn't too critical (near-line storage of massive files), then ATA RAID is perfect for you. SCSI has a place, and that place is in servers with massive amounts of transactions of relatively small files.
Sustained IDE Raid performance can equal SCSI This is absolutely incorrect.
Have you tried hardware ATA RAID like 3ware? Anything else is apples and oranges really, since those SCSI controllers have an i960 or similar to offload the XOR operations of RAID5, like 3ware does for ATA. External ATA boxes with SCSI or FC interfaces in the back of them are also excellent choices when you have a laden host CPU.
Here's a back of the envelope test with 3ware controllers and a laden CPU for (( ; ; )); do:; done &
Ran this three times to load the CPU down../bonnie++ -d/storage2/ -f
46MB/Sec write, 101MB/Sec read, 1% CPU use on read, %20 use on write. Not unreasonable. This was with the load average at 3.5 or so. Array is 24 ATA disk, 5400 RPM. Three 3ware 7810 controllers. The 7850s are even faster with more on-board cache.
IDE Disks are just as reliable as SCSI Again, completely false.
Maxtor MaxLine II disks will be rated with the same MTBF as their SCSI disks, and are specifically designed for high end enterprise storage. ATA is going to be the standard in enterprise storage, don't miss the boat because your information about ATA is 5 years out of date. 5 years ago I would have agreed with you, things have changed with ATA.
ATA is less than half the cost, so completely mirrored systems become affordable where they might not have been before.
SCSI has a place in servers, and ATA has a place in servers. It all depends on your needs.
Re:On SCSI drives and RAID controllers
on
IDE RAID Examined
·
· Score: 1
I've never tried to have more than one hot spare, but I'm pretty sure you can with 3ware.
You can make as many arrays per controller as you want. They will show up as scsi devices to the underlying OS.
3ware has 8 and 12 channel serial and parallel ATA controller cards, all are 64bit PCI.
You can use serial ATA even today, 3ware sells a dongle thing to stick on the back of a parallel ATA drive to change it to serial. The dongle is $30 each. If you are going to use more than 8 drives, I highly recommend using serial ATA since the cabling is a real hassle with more than 8 ATA drives in a single computer.
I think you are on to something. If everyone had to write haiku without line breaks, the stupid ones would become more apparent.
Here's a hint to the other would-be joke haiku writers, if you take out the line breaks and it sounds like a totally unremarkable statement, then your haiku sucked.:)
It's only astounding to the Christians that still persist in claiming we are inherently different from "animals".
Not that I'm some vegan tree-hugger, but it's naive to rationalize our treatment of animals on the premise that we are somehow not "animal". Animals eat and kill other animals. People should just accept that.
Half of those cables probably carry video. I'd imagine if you messed with those wires it would be less than 10 seconds before you hear someone behind you saying "Could you please come with me.":)
The problem is the pulse width modulation of the quadrature amplitude modulation. Apparently, the loss of Nyquist data near the ends of the audible spectrum causes a noise temperature inversion, which proportionately has an effect on the maximum usable frequency (MUF) of very high frequency waves. This can cause things like distant channel propagation.
Slashdot Mirror
For a project code-named Dmitri
In soviet russia, Dmitri codes AI!
(or at least codes things that pisses Adobe off)
Wasn't there something like this for gay people? I don't remember if it was called Gaydar or not, but the concept was similar. :)
If you live in a city for instance, there are many who pass within a few yards of you each day who could give you a ride home, buy an item you're trying to sell,
No longer will drug dealers have to stand suspiciously on corners or in parks!
These cases from CalPC could house something like 30 of these, for a massive beowulf cluster. :) They cost about $500 without power supply.
There is a phenomenon I call surface area of design, which is what you must understand about a design to know which part you care about. Does the fact that there are more than 200 methods mean anything to the setText() method?
This is an interesting point. I know a good bit of C++, but I don't often code in it. Why? Because I spend twice as much time looking up methods and classes than I do actually coding. Half the time I still later discover that I reinvented the wheel.
as cross-platform support is more of a burden than a feature; we can afford to cut off a small minority in favor of delivering seamless, facilitated content to the bulk of our client base.
Yeah, lots of neighborhoods around the country had that philosophy. Why bother with allowing minorities move in and lower the property values?
You know, it's strange because /. is blazingly fast now. Maybe they were working on the network or something and installed some new lines.
You missed my point, I'm not talking about this crippled music plan, I'm talking about real file fomats.
In a couple years, having a large music store worth of music on your hard disk will be no big deal. No one will want to pay $10 a month for something they can get free in a few minutes from their friends, without stupid restrictions.
320GB drives are coming out in a month or two. 1TB single disk is expected in 2004.
200,000 songs at 3 minutes a song average. 2 megs a minute for 160Kbps or so. A little more than 1TB.
So when 1TB hard disks are common, people will just do what we used to do in C64 days, and bring their ancient worthless 100-200GB hard disks to "user groups" and swap disks, assuming the "market forces" continue to stifle high bandwidth internet connections and high capacity magnetic/optical backup media. Or LAN parties, or whatever. Back in the C64 days, these weren't technically savvy people trading disks, they were normal computer users that just wanted the latest compilation of games.
Technology marches on. It's just a matter of time until that whole music store is easily contained on your laptop.
Netmar has a similar deal for $10 a month for 100 megs on shared Linux webhosting. Real shell, PHP, all that stuff. Responsive customer service, for example, their mail server was misconfigured to bounce null return paths, so I couldn't subscribe to sourceforge lists, they fixed it within a day of me pointing it out.
They might be what you are looking for. I use them personally for webhosting the links in my sig and URL, and for hosting my main email account. They do co-loc too, they have generator/UPS, all the standard stuff.
1. Realtek chipset network cards aren't that bad. I use them for my home lan almost exclusively.
2. High end ATA will always have the 3 year warantee (e.g. MaxLine II Maxtor). If you want small capacity and long warantee, you are SOL though currently.
3. They aren't aluminium, but Evercase cases from newegg are surprisingly high quality for their price. Fan over the CPU mounts on even the low end ones, extra drive bays on the floor of the case (you can mount something like 6 internal hard disks even in their second cheapest model). They even have a mount for a drive bay fan on the lower internal drive carriage.
I understand your point, about a dichotomy developing in the market, and what you say may become more true, but right now a lot of the examples you cited have useful workarounds for those in the know.
HTH.
Yeah, I understand LUNs, I just am not sure whether 3ware uses them. I'm pretty sure they do not, even if you create multiple arrays within a single controller.
I've never had more than one array per controller, so I don't know for sure, but I think everything shows up as a full drive as if it has a SCSI ID number. Call 3ware to make sure.
Different controllers obviously show up as different SCSI ID.
SCSI can have 15 devices per bus, but why buy more smaller and more expensive SCSI can have 15 devices per bus, but why buy more smaller and more expensive SCSI drives instead of getting fewer large IDE drives?
:; done &
./bonnie++ -d /storage2/ -f
/sec %CP
Answer: Bigger isn't always better.
Smaller isn't always better either. If you need a multi terabyte array, and rotational latency isn't too critical (near-line storage of massive files), then ATA RAID is perfect for you. SCSI has a place, and that place is in servers with massive amounts of transactions of relatively small files.
Sustained IDE Raid performance can equal SCSI
This is absolutely incorrect.
Have you tried hardware ATA RAID like 3ware? Anything else is apples and oranges really, since those SCSI controllers have an i960 or similar to offload the XOR operations of RAID5, like 3ware does for ATA. External ATA boxes with SCSI or FC interfaces in the back of them are also excellent choices when you have a laden host CPU.
Here's a back of the envelope test with 3ware controllers and a laden CPU
for (( ; ; )); do
Ran this three times to load the CPU down.
Version 1.02a ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP
burgundy 1G 46428 21 29121 19 101126 45 255.7 1
46MB/Sec write, 101MB/Sec read, 1% CPU use on read, %20 use on write. Not unreasonable. This was with the load average at 3.5 or so. Array is 24 ATA disk, 5400 RPM. Three 3ware 7810 controllers. The 7850s are even faster with more on-board cache.
IDE Disks are just as reliable as SCSI
Again, completely false.
Maxtor MaxLine II disks will be rated with the same MTBF as their SCSI disks, and are specifically designed for high end enterprise storage. ATA is going to be the standard in enterprise storage, don't miss the boat because your information about ATA is 5 years out of date. 5 years ago I would have agreed with you, things have changed with ATA.
ATA is less than half the cost, so completely mirrored systems become affordable where they might not have been before.
SCSI has a place in servers, and ATA has a place in servers. It all depends on your needs.
I've never tried to have more than one hot spare, but I'm pretty sure you can with 3ware.
You can make as many arrays per controller as you want. They will show up as scsi devices to the underlying OS.
3ware has 8 and 12 channel serial and parallel ATA controller cards, all are 64bit PCI.
You can use serial ATA even today, 3ware sells a dongle thing to stick on the back of a parallel ATA drive to change it to serial. The dongle is $30 each. If you are going to use more than 8 drives, I highly recommend using serial ATA since the cabling is a real hassle with more than 8 ATA drives in a single computer.
I think you are on to something. If everyone had to write haiku without line breaks, the stupid ones would become more apparent.
:)
Here's a hint to the other would-be joke haiku writers, if you take out the line breaks and it sounds like a totally unremarkable statement, then your haiku sucked.
It's only astounding to the Christians that still persist in claiming we are inherently different from "animals".
Not that I'm some vegan tree-hugger, but it's naive to rationalize our treatment of animals on the premise that we are somehow not "animal". Animals eat and kill other animals. People should just accept that.
side-beside
In other news, it was found the DNA sequences responsible for language were more mouse-like in the study group known as "Slashdot story submitters".
That makes no sense. If it converts heat into mechnical energy, and is reversible, it would convert mechnical energy into heat, when reversed.
What's the 1/2 life of the plastic molecules themselves?
Uhhh, forever?
I sure hope my coke bottles aren't radioactive.
download their images and LOOK at them with higher zoom levels
What are you talking about? I didn't see anything. Do you have a specific thing you think you see?
It's right Here
Half of those cables probably carry video. I'd imagine if you messed with those wires it would be less than 10 seconds before you hear someone behind you saying "Could you please come with me." :)
I thought "noise temperature inversion" affecting VHF propagation was quite clever myself.
:)
No, it's total BS. Call it a subtle in-joke for people who know what those words mean.
The problem is the pulse width modulation of the quadrature amplitude modulation. Apparently, the loss of Nyquist data near the ends of the audible spectrum causes a noise temperature inversion, which proportionately has an effect on the maximum usable frequency (MUF) of very high frequency waves. This can cause things like distant channel propagation.