Yes, DDS or richtech both are diskless programs for cafe used. The perfomance and reliabilities is based on the configuration of ur server. matter of how much $$$ u dumb in and the how u configure ur network. some running manage switch and some unmanage.

to be frank, the resolution of ur screen directly affect the volumn of date been transfered from server to ur client, what i mean here is not the desktop resolution by gaming resolutions. 1680x 1050 COD4 need almost double of size if compare to 1024x1050. so different spec need different server. the attachment is what i have been tested for a newly cafe.

u can see that 3x500GB RAID0 with buffer on can highly transfer more than 200MB per seconds. so the bottle neck is on ur network adapter. maybe some of u will say i have 2 network adapter in my server configuration with different IP. eg: 192.168.1.100 and 192.168.1.101

ok, do u noticed that this configuration is seperated the client pc into 2 channel. which mean 1 to 30 pc refer to adapter no1: 192.168.1.100 and pc 31 to 60 to adapter no2: 192.168.1.101. what if all ur customer is sitting only from pc no1 to pc30? this means ur adapter 2 is on idle (sleeping mode) all the data is transfer throught adapter no1: 192.168.1.100

everyone knows that 1000based /1Gbps is 1000 mega bit per sec but not mega byte:

1byte = 8 bit

so ur 1000based is around 116Megabyte per second.

u can cleary see that even ur HDD can transfer 200MB per second but u running on adapter no1: 192.168.1.100 which caused the bottleneck 116MB limit. so i advice running network teaming as a solution. with Network teaming (NLB) u can easily combine 2 network adapter or 3 above to become a single channel. which means u have only 1 IP on ur server with 2/3 network card.

when the bandwidth is more than 100mb and the program will automatically using the 2nd adapter to transfer date for the following transfer, and if ur server is really powerful HDD trasnfer rate is more than 350MB .. so the program will use all the 3 card to transfer ur data.

---

Added on May 18, 2008, 6:33 pmas refer to above ....someone mentioned running 2 diskless server will have zero downtime.. sorry and no offence, infact u still need the 3rd server.

the 2 server running on synch is to reduce the heavy duty carry on single server. which mean load balance. ok now is the prob. when the admin update or do some changes on server 1 and endup a mass or something wrong... sorry to say that the synch is real time.. so ur server 2 is gone as well. for me.. i'll try my best to backup a single server for ER used.

from the above post, i have tested on some issue... personally, i think that from the review and attachment above... i barely believed that 1 server could support up to 60 PC without synch. of coz.. matter of how do u set on ur write sector. ( new VR150 300GB WD HDD with RAID0 buffer on ) could solve all the doubt.

approximately 150MB write speed ... (review on google) .. no HDD to test yet.. i'll post my review once i got the HDD.

no hard feeling or offence to any parties..just my 0.02 cents


have a nice day


best regards


Takashi

This post has been edited by Takashi: May 18 2008, 06:33 PM


Attached thumbnail(s)

just my 0.02 cents... hopefully no hard feeling or againts on any parties.

i setup cafe for my clientw when i was in oversea and SG, and doing some tech part in MY too.. anyway, u may ask anything u want, and i wish that i could try my best to answer. but, i not pro.. so .. just manage to handle some simple cases.

basically, in China, SG or HK. most of them run on diskless.. maybe someone said it's new or unstable... the matter of fact is.. it's just like the terminal server which using in banking system. as i mentioned, there r serveral diskless software in the market, couldnt advice that whcih is the best, coz ... software always has a loop or bug. u can easily see in microsoft, multi billion dollar company and u could always see the patches for their product. so.. i bet no one dare to say their system is the best and unbeatable...

In term of technology requirement, depend on ur own situation. if u r establishing a cafe in outskirt. no compatitors who cares what system u r using.... diskless or iscsi or CGO, or whatever u named it just a solution for the cafe owner to easy manage their business. which is better or which os faster or which is the best.. really depend on ur $$$.

software rely on hardware where hardware depend on ur finacial $$$$. but of coz.. the person who setup should have certain knowledge bout the entire flow..... so .. u may ask anything u want, and we might able to share some idea here. thx and have a nice day.

Again, hopefully, no hard feeling or bad intention to any parties. just my 0.02 cents words.



best regards

Takashi

---

Added on June 16, 2008, 12:00 amyup.. u r right... nothing is unbeatable.... most of the billing system has the limitation caused by the windows. so, for all the cafe owner, pls disable ur client on safe mode if u r not running on diskless system.

safe mode with domain controller is a big loop for any billing system. so.. disable it.

best regards


Takashi

This post has been edited by Takashi: Jun 16 2008, 12:00 AM

for me.. no one system is a crap.. just a matter does it suit ur taste. simple.

for additional info, i have tested the velociraptor VR150. it's kinda expensive.. around Rm990 300GB. but the read write speed is ultimate and the random access is cool.. of coz .. dont compare it with SSD. different technology and pirce as well.

for the cyber below 60 PC and running diskless server. u could use the vr150 as the write sector.. whereby.. u estimated around 3GB per pc for the temperory storage.. so VR150 is just enough.

if anyone need the print screen of the test.. Pm me.. i'll post here.

2ndly, there is a 24 ports manageable gigaswitch by 3com which is around RM1350 but i heard the chipset is different from the same switches which is RM 3200. anyone notice the different?

best regards

Takashi