Hi On 26 May 2010 13:07, Juma Lungo <[email protected]> wrote: > anyone with quick answers on these questions > > --- On Mon, 5/24/10, Perera,Sriyanjit <[email protected]> wrote: > >> From: Perera,Sriyanjit <[email protected]> >> Subject: RE: FW: Proposed WP Sessions to Complete Final Document: Thursday >> at 11 am >> To: "Juma Lungo" <[email protected]>, [email protected], "Dr. Honest >> Christopher Kimaro" <[email protected]> >> Cc: [email protected], "Sarah Emerson" <[email protected]> >> Date: Monday, May 24, 2010, 9:13 PM >> Juma, >> Thank you for this, I guess I am trying to understand what >> the ideal configuration would be for the national server. >> When you say various servers I assume you mean everything >> from regular desktop computers to larger, multi processor, >> large memory servers? >> >> Have any of the other countries been able to provide >> guidance on what is required for a national installation >> that needs to exchange data with regional and district >> installations? When we end up with 133 district >> installations, 21 regional installations and 6500 facilities >> trying to submit data via IVR or SMS the national data >> warehouse server will be busy. >> >> In these larger 'national' installations are there >> advantages/disadvantages with different OS or relational >> database options? >>
I think Jason may provide some of these answers as he writes up based on his experience in Zambia. I think in terms of a "supported" enterprize configuration we may be gravitating towards ubuntu server with postgres as that is where the skills seem to be clustered around. >> Does the current system support full redundancy? Will you >> need to change the relational database if this becomes a >> requirement? Postgres can be setup with warm standby which should adequately meet the disaster recovery requirements of the ministry. >Someone mentioned an installation of a national >> server using a server at MOHSW. Does this server have >> appropriate anti-virus and backup functionality? >> >> As the number of users accessing the system simultaneously >> increases I would expect the server requirements to >> increase. Have you been able to articulate what kind of data >> connectivity you would like. I would think the data >> link to the MOHSW would be a limiting factor for a while >> until we can really build up the ICT capacity there. Are you >> able to help articulate this and relate it to the Tanzania >> national installation requirements. How much data is >> transferred to and from the server during a regional or >> district 'synching'? I'll leave others to provide some typical stats here. >> >> Sorry if these questions are basic or misinformed and sorry >> to bombard you with so many. Just trying to improve my >> understanding. We are all in agreement that the vision is to >> set a path for this to be maintained and operated by the >> MOHSW within their premises. As we discussed I want to >> understand the extent to which the system would require or >> benefit from a temporary, 1-2 years, offsite hosting >> arrangement that provides improved system availability, >> improved physical and environmental security, improved data >> transmission capacity, reliability of data connectivity, >> automated monitoring of all applications, servers, network >> devices and communication services 24*7*365, etc. Good questions. What is being proposed here - that the national database (and dhis webapp?) is hosted offsite? Some vpn setup such as openvpn will definitely be required here. Regards Bob >> >> Regards >> Sri Perera >> >> >> >> >> >> Mr. Sriyanjit Perera >> HMIS Advisor >> CTS Global, Inc. >> Assigned to: The Centers for Disease Control Prevention >> Phone: +255 (0) 22 212 1440/1442 ext. 8409 >> Mobile: +255 (0) 755 32 55 64 >> >> >> > > > > > _______________________________________________ > Mailing list: https://launchpad.net/~dhis2-devs > Post to : [email protected] > Unsubscribe : https://launchpad.net/~dhis2-devs > More help : https://help.launchpad.net/ListHelp > _______________________________________________ Mailing list: https://launchpad.net/~dhis2-devs Post to : [email protected] Unsubscribe : https://launchpad.net/~dhis2-devs More help : https://help.launchpad.net/ListHelp
