ClassData Network

Sunday - Sep 05, 2010

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Dedicated Service with Shared Price

VPS (Virtual Private Server) is a partitioned server which shares hardware with others, whereas it is completly isolated from the other accounts. It is different from shared hosting in the aspect that it has isolated resources and it can produce private services. It is different from dedicated server in the aspect that it does not has real hardware. A VPS can be viewed as a bridge between shared and dedicated.

Every VPS has its own isolated disk space, network space, user space, cpu allocation, memory allocation, and a dedicated operating system, all of which guarantee the hosting clients dedicated environment with balanced performance among VPS. If your VPS crashes on some reason, you can re-boot your VPS via. web-browser, whereas the other VPS on that machine are protected. Therefore, VPS provides expensive dedicated services under shared price. Some of the strong advantages are:

dedicated Linux, root privilege, dedicated IP address
freely customize system services, freely install softwares
no limit of users, domains, mails, databases, services
free from hardware maintenance, free from network supervising by 24 x 7
... much more

Owing to these advanced isolation capabilities, users could freely install almost any kind of 3^'rd party software packages, regardless of it's system dependencies. You could make the best use of numerous free softwares at http://SourceForge.net for your business tools.

Sun Cobalt RaQ550 w/ Remote Console

Our host machine is Sun Microsystems Cobalt RaQ550. We have partitioned it with the latest custom built virtualization kernel. It's a production quality server appliance over years, capable of hosting around 200 shared accounts per unit. However, we packaged up to 8 accounts (vps) per machine. Therefore, daily average system load under full accounts is not exceed 0.5, which is highly competitive record in comparison with other solutions.

Cobalt machine supports serial console by hardware default, which means that you can login to your server when your network is disabled. You can remotly manage boot process from the very beginning of system power on. Sometimes you will need filesystem recovery in single user mode, sometimes change boot from network in boot rom mode, sometimes remote deployment. When equipped with suitable console device and switched pdu, you can do almost anything in a great distance. (See, "Remotly Provision")

x100 Faster latency time to Korea

Korea is known as the top wired country in the world. The ratio of broadband subscribers per 100 inhabitants is almost three times to that of USA. (Source: OECD ICCP division) However, the international traffic to and from Korea is extreamly busy than the nation-wide network (ie., ping inside Korea: avg. 2ms, Japan: 50ms, China: 100ms, USA: 200ms, EU: 300ms), which is hardly allowable for the "speed-a-holic" Korean customers.

If your business targets Korea market, you could make great enhancement of 100-150 times faster latency time with our vps than hosting from USA/EU location. Are you getting serious with Korea business? Then, first of all, migrate your presence to your customers, don't let them to you.

Ping from USA (66.165.131.180)	Ping from Korea (61.100.10.68)
Ping www.yahoo.com [69.147.114.210] with 32 bytes of data: Reply from 69.147.114.210: bytes=32 time=16ms Reply from 69.147.114.210: bytes=32 time=16ms Reply from 69.147.114.210: bytes=32 time=15ms Reply from 69.147.114.210: bytes=32 time=16ms Reply from 69.147.114.210: bytes=32 time=15ms Reply from 69.147.114.210: bytes=32 time=16ms Ping statistics for 69.147.114.210: Packets: Sent=6, Received=6, Lost=0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 15ms, Maximum = 16ms, Average = 16ms	PING www.yahoo.com (69.147.114.210) 56 (84) bytes of data. 64 bytes from 69.147.114.210: time=251 ms 64 bytes from 69.147.114.210: time=251 ms 64 bytes from 69.147.114.210: time=251 ms 64 bytes from 69.147.114.210: time=250 ms 64 bytes from 69.147.114.210: time=251 ms 64 bytes from 69.147.114.210: time=251 ms --- 69.147.114.210 ping statistics --- 6 packets transmitted, 6 received, 0% packet loss, time 5003ms rtt min/avg/max/mdev = 250.341/251.207/251.795/0.798 ms, pipe 2
Ping www.yahoo.co.kr [222.231.19.227] with 32 bytes of data: Reply from 222.231.19.227: bytes=32 time=219ms Reply from 222.231.19.227: bytes=32 time=234ms Reply from 222.231.19.227: bytes=32 time=219ms Reply from 222.231.19.227: bytes=32 time=234ms Reply from 222.231.19.227: bytes=32 time=235ms Reply from 222.231.19.227: bytes=32 time=218ms Ping statistics for 222.231.19.227: Packets: Sent=6, Received=6, Lost=0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 218ms, Maximum = 235ms, Average = 226ms	PING www.yahoo.co.kr (222.231.19.227) 56(84) bytes of data. 64 bytes from 222.231.19.227: time=1.72 ms 64 bytes from 222.231.19.227: time=1.91 ms 64 bytes from 222.231.19.227: time=1.81 ms 64 bytes from 222.231.19.227: time=1.89 ms 64 bytes from 222.231.19.227: time=2.07 ms 64 bytes from 222.231.19.227: time=1.88 ms --- 222.231.19.227 ping statistics --- 6 packets transmitted, 6 received, 0% packet loss, time 5003ms rtt min/avg/max/mdev = 1.721/1.882/2.078/0.121 ms, pipe 2

Our rack space is located in bundang datacenter (a.k.a. Hostway Korea) near Seoul, which is the largest scale, the premier class idc in S. Korea. Bundang idc alone hosts over 13 thousand servers, directly connected to the national backbone. Our vps can tranfer data with 10 Mega Byte per second (full duplex 100Mb bandwidth), effective in the nation-wide.

Remotly Provision, Servers & Power

If you administrate dedicated hosts in great distance, you will need something more special features like a virtual datacenter environment. The mission is doing anything over ethernet but hardware replacement.

For example: Remote network configuration requires another emergency access route to the device. Kernel customizing, Filesystem fixing is impossible without console & power recycle device. Remote OS deployment needs additional boot server. Our actual solution for such distant management are:

console managemant server provides console access to your box when network is disabled.
switched pdu enables power recycle over ethernet when your system hangs.
pxe boot/nfs server provides network boot kernel with nfs mount images(OS deployment).

With these advanced features, freely available for our dedicated plan, you could make the best use of distant server like it's a virtual localhost at your local place.

switched pdu