All bars the diskless Detailed plan of the system -

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hard disk: ide 120G system tray
diskless server configuration speaking to balance, if your server is only one network card, or sharing a array, even if you write 10 read 10, with unit volume can not go up, since the diskless installation can not be quantified, then failure of initial installation is easy beginner or card machines, with machine capacity of less than expected results is not difficult to understand, here is my personal diskless estimates.
to a cafe I transform the ordinary configuration example:
linked to the disk array card number, according to the slot speed, reasonable arrangement, for example, you are in a PCI-E 1X cards linked to an array of four SAS, IDE, or both share a motherboard IDE port, so that how the server also do not increase the amount of belt machine, a slot of the total linked to the speed of the disk, do not exceed the speed of its slot if speed is not enough, you can add a card.
new diskless system speed to do very quickly, after six months will drop, and this may be the head of aging and magnetic molecular fatigue actions, and this is the traditional recording-specific problems, together with file fragments and other reasons, so , we have to further increase the amount of disk speed of 20% surplus, but also consider the efficiency of write-back worse than reading itself, but also further increase the write speed back to the point, so, we require the disk read speed to reach the 250M, back write speed to reach the 300M, so you speed disk arrays according to their own arrangements for some time to write on it a few to achieve this speed since the disk array to increase the number of a waste of investment, improvement is not obvious.
20-40 with a machine is a very flexible range of workstation memory is 2G, you can take 40, if only 512 of memory, you can only take 20, 256 Do not do diskless memory, and there disk boot is difficult. Play games and more,[link widoczny dla zalogowanych], with 20 playing cards to chat more, you can take 40, so it is difficult to quantify the amount of belt machine, we take the average, a U of a card, with 30 bar.
do write-back disk, read the article about online a lot of SSD evaluation, the speed of 170M/98M, I am excited and spent five thousand dollars, bought a three ocz ssd, first reading, second write, the results with only 20 on the card ma[link widoczny dla zalogowanych]ne to death, and later as a write-back or replaced before normal sata, but the ssd as read the disk is indeed very possible, fast burst rate, I bought the OCZ V2 version with USB interface, said One version is 64G, the second version is 60G, but I still see is the 64G, do not know why.
Memory: A-DATA red Veyron 2G * 2
If you do a disk system, 70 sets of drives to spend the money 2W, and my server and only then the total cost of more than 5,000 now, therefore, is not only convenient to manage diskless diskless can do quickly and good and province.
Here is my server's specific configuration (not buying a new server, an existing one):
CPU: Q6600 Quad-Core for the one hundred dollars or fan with heat pipe heat sink
read the disk: ocz 60G v2 ssd * 2 Reading
70 sets machine, cpu recommended to use two (or dual-core), two network cards, of course, you can choose to purchase a server, it can be separated with two servers.
more information on Internet cafes all diskless Detailed plan of the system content, go to Internet cafes Online forum to discuss!

me on the card? winded one, my motherboard is the integrated intel82566 Gigabit Ethernet, Gigabit Ethernet outside plus a tp-link/88e8001, my imagination intel82566 speed should be faster now, the test results are On the contrary, independent of the intel onboard Gigabit Ethernet LAN faster than 5%, perhaps unfair means I test (above comments are for reference only.)
Motherboard: intel DG33BU sound was integrated network
write back: sata200g * 4
common to see someone put the question: how to configure my machine, a few reading and writing with the machine a few How many? Or this: I have 100 computers bars, what should be equipped with a server? This issue moot any diskless technical staff can not answer, now I have little experience doing diskless written for the novice entering the diskless reference fields and then read it for free.
faster than write-back requirements are much lower, however, in actual use has been pretty good, all the machines in Vientiane the same time start the shortest 25 seconds into the desktop, the longest 45 seconds, at least no one called the card machine .
Here we are talking about Gigabit Ethernet, a network card in the normal flow of a 70-80M, 150M I observed the peak, and you're not wrong, it is true, we take the middle value: 100M, two network cards traffic there is 200M, meaning that our disk system to provide more than 200M of traffic.
a server in the end the band simply can not quantify how many workstations, depending on workstation configuration, network and people who play the game more or less so the case may be, and even the same configuration from different technicians to install the system speed will be different, I also saw the world alliance network actually do some cattle on a single server with 200 workstations,[link widoczny dla zalogowanych], is really amazing technology of God, I can not measure in this life but also the realm of practice.
Do not buy a SSD
general,[link widoczny dla zalogowanych],[link widoczny dla zalogowanych], a cpu add a network card with a machine 20-40 units, can withstand the test of Internet cafe users
workstation: amd2800 +,512-768 memory in half, 9550 graphics, a total of 70 units.
the same size disk to the factory early and present newly acquired too much speed difference, for example, the previous top speed of hard drives purchased 200Gsata only 60M, now the new 250Gsata can be easily purchased over 100M, 1 year ago the highest share of st500G only 70M, one year after the purchase of st500G has more than 100M, and 4 disk array early, not as fast now 3, and greater capacity, higher density units in the data, the faster So few read a few write is not important, what we want is the data.
Power: 650W power supply, the other stuff you can will this stuff do not be spared

four 50G 200G hard drive array only interception in front of the rest are discarded, after the composition has the capacity of 200G, faster than the whole disk array faster 40M.
read the disk array in the measured speed under linux 280M, write-back array of speed 220M.
Motherboard: Only 4 sata interface, purchased a pci-e sata expansion card transfer 3124
kernel: Load all network using a 5.8 version of 5.6 kernel
now the hard drives are hundreds of G, is at array size after the T, write-back can not take such a large disk capacity, we HDtach this test software to test drive, we can see , the speed of traditional hard drives are headache, light foot, the outer edge of the hard drive is the fastest opening paragraph, to the latter part of the speed to slow down, so we should not only hard for the whole array, as will the loss of 10% performance For example, my average speed is measured a 200Gsata 48M, but I only use the front array 50G, 50G which reached an average speed of 57M, the rest do not all lay down, ssd hard drives are now standard line , there is no such situation.
use of four bars early sata200G original disk, the maximum speed alone was 60G, of which there is a generation is sata, the speed was 55M, no way, Internet cafe owners reluctant to spend money to buy new, if it is new sata, three is enough, but the speed is much faster.
card: Integrated 82566 Gigabit Ethernet network card plus a 88E8001 shunt, each with 35 sets of machines

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