Re: [Server-devel] Target price and quantitiy
Well, I got some more questions... Whats the typical power source for the server? 12V DC or 24V DC or 110V AC or 230V AC? What are the other conditions like temperature and humidity? Would it be enough if the server is capable of operating between 0°-55°C and 0-90% humidity? Which outlets are really needed (w/ switch)? I guess something like: -4x Ethernet (over the switch) -4x USB2.0 -1x Power Is something like a vga, p/s2, rs232, ... needed? Best regards, Christopher On Mon, Jun 23, 2008 at 5:54 AM, John Watlington [EMAIL PROTECTED] wrote: On Jun 22, 2008, at 2:19 PM, Christopher Niemöller wrote: Hi, I was playing around with some embedded computing and rugged hardware and got some questions. Whats the target price for the school server? Around 500 USD for a server plus 500GB disk. Networking (access points and switches) are additional (although ideally a four port switch is built in...) How many school server are needed anyway? One per school... Larger schools need more capable servers. There is no single solution, from a product design perspective. If we concentrate on the needs of smaller rural schools (30-300 kids), we are talking about the $500 server mentioned above, with tough environmental constraints. In this case, we are unfortunately only talking about 5K-10K units per year, and these are spread across multiple countries. As you might know, its my job to design such systems, please dont take this questions the wrong way. I dont want to sell anything, but Im interested in supporting this project. ;) We have no problem with people interested in selling stuff. We need to buy servers ourselves for use in trials, etc... Cheers, wad ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
[Server-devel] Target price and quantitiy
From: Christopher Niem?ller I was playing around with some embedded computing and rugged hardware and got some questions. Whats the target price for the school server? How many school server are needed anyway? Whats the typical power source for the server? 12V DC or 24V DC or 110V AC or 230V AC? What are the other conditions like temperature and humidity? Would it be enough if the server is capable of operating between 0?-55?C and 0-90% humidity? Which outlets are really needed (w/ switch)? I guess something like: -4x Ethernet (over the switch) -4x USB2.0 -1x Power Is something like a vga, p/s2, rs232, ... needed? Chris, I put together a school server from parts at a local computer supply store for $530. This is for a project for OLPC Uruguay ( http://wiki.laptop.org/go/Educational_Blogger_Project ) The full parts list is here: http://wiki.laptop.org/go/User:Az990tony/edublog-beta-hw In addition to XS, I also have Fedora 7 and Debian 4 Etch installed in a multi-boot GRUB. The software installation: http://wiki.laptop.org/go/User:Az990tony/edublog-beta-hw The entire machine needs only a single RJ45 Ethernet connection. I am able to access the system remotely from my Windows PC using OpenSSH. I have created a customized SysRescCD that allows me to boot into SSHD mode to perform the install and admin remotely. Currently, I have it set up as a RAID1 mirror between two 160GB drives, but I have two 30GB un-raided partitions, for a total space of 190GB. The implementation could easily accomodate larger or more drives to have the 500GB Wad suggests. I need to figure out Moodle+PostgreSQL this week, then I ship it off to its final destination. Thanks Tony Pearson Senior Storage Consultant, IBM System Storage™ Telephone: +1 520-799-4309 | tie 321-4309 | Cell: +1 520 990-8669 email: [EMAIL PROTECTED] | GSA: http://tucgsa.ibm.com/~tpearson Blog: http://www.ibm.com/developerworks/blogs/page/InsideSystemStorage AKA: 990tony Paravane, eightbar specialist image/jpeg___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
Re: [Server-devel] Target price and quantitiy
On Mon, Jun 23, 2008 at 11:29 AM, Christopher Niemöller [EMAIL PROTECTED] wrote: Whats the typical power source for the server? 12V DC or 24V DC or 110V AC or 230V AC? All of them - some locations will have 110VAC/230VAC but some regions have no power grid. In all cases, power is prone to brownouts and spikes. We'd like to be able to offer solar panel + battery packs, connectors for car batteries / alternators and similar setups for schools with no electricity. What are the other conditions like temperature and humidity? Would it be enough if the server is capable of operating between 0°-55°C and 0-90% humidity? http://wiki.laptop.org/go/XS_Server_Specification has some notes on environmental conditions. The style in that page is confusing - there is a mix of what we would aim to provide if we were manufacturing a server, and what to look for in an OTS system. Which outlets are really needed (w/ switch)? I guess something like: -4x Ethernet (over the switch) -4x USB2.0 -1x Power The server itself needs 2 ethernet ports (lan, wan) and 4-6 USB connectors. For very small schools, Active Antennas (usb connected) can be used, though we are still sorting out some issues with them. For medium to large schools, the lan port hooks up to a switch+AP that has 4 ports or more. Is something like a vga, p/s2, rs232, ... needed? It is meant to be headless - a least a serial port is required for installation support. If VGA can be had at low cost, probably countries will go for it. cheers, m -- [EMAIL PROTECTED] [EMAIL PROTECTED] -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
[Server-devel] Target price and quantitiy
Hi, I was playing around with some embedded computing and rugged hardware and got some questions. Whats the target price for the school server? How many school server are needed anyway? As you might know, its my job to design such systems, please dont take this questions the wrong way. I dont want to sell anything, but Im interested in supporting this project. ;) Best regards, Christopher ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
Re: [Server-devel] Target price and quantitiy
On Jun 22, 2008, at 2:19 PM, Christopher Niemöller wrote: Hi, I was playing around with some embedded computing and rugged hardware and got some questions. Whats the target price for the school server? Around 500 USD for a server plus 500GB disk. Networking (access points and switches) are additional (although ideally a four port switch is built in...) How many school server are needed anyway? One per school... Larger schools need more capable servers. There is no single solution, from a product design perspective. If we concentrate on the needs of smaller rural schools (30-300 kids), we are talking about the $500 server mentioned above, with tough environmental constraints. In this case, we are unfortunately only talking about 5K-10K units per year, and these are spread across multiple countries. As you might know, its my job to design such systems, please dont take this questions the wrong way. I dont want to sell anything, but Im interested in supporting this project. ;) We have no problem with people interested in selling stuff. We need to buy servers ourselves for use in trials, etc... Cheers, wad ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
