Meeting: I.T. Apps Server Delivery
Date: 22/03/2010 – recorded on paper records
Today we met with I.T. to discuss the delivery of our new apps server and the disk storage for the WMS server.
The main points which came up are the need for the WMS to have speedy disk access and good network access. The Apps Server is also ready to be released. This will affect my API as the apps server will host it!
The minutes for the meeting are:
GIS Framework
Project Management Office
Held on Monday 22 March 2010
Present:
Brian Hole (BH)
Steve Stone (SS)
Tracey Brant (TB)
John Collinson (JC)
Linda Huxley (LH) Minutes
Apologies:
Andy Elliott
A meeting took place to discuss the proposal and questions raised from e-mail entitled GIS Framework Proposal 17/03/2010.
Q1. Storage of Data?
6TB for 2010/ 2011 and increasing to 10TB for 2011.
6TB on Data Base Server, some live data, some cache.
(TB) will forward a copy of the latest network diagram and plan to (SS) who will then be able to identify the requirements.
Q2. How much Data?
2TB for WMS – figures will be provided by (TB/JC).
(JC) 30 map views per second, 15K rpm discs is recommended, but not enough space (IO level required).
(AE) Needs to record details of all system changes that are made on a regular basis, this will enable a set of standard changes AE will be able to authorise. (TB) will forward details around changes.
Q3. Back-up of Data?
Oracle product will be used for the back-up of data, one copy no historic data. (SS) There is currently a 30 day policy
(TB) Data is required indefinitely. 80% is static, and 20% of data is live.
Recovery time and Business Continuity are areas for consideration. (BH) It is necessary to find a balance between risk and cost.
(SS) What percentage is legislative and what isn’t?
WMS how many Cache files can be held?
(TB) There is some very historic data (maps from the 1800’s). (SS) advised that if 100% important to be accessible archiving maybe the solution.
Q4. How often does the historical data need to be backed up?
Q5. What is the change rate of live data?
Q6. How often does the live data need to be backed-up?
Q7. How often if the data accessed?
Questions 4 to 7 have been discussed above.
(SS) requires further information (TB) and (JC) to provide in more detail :-
Which data, which is legislative/desirable/?
How long is data required?
How often is the data to be backed-up?
Are multiple back-ups required?
To keep back-up requirements to a minimum.
Q8. Approximately how many concurrent users will be accessing the data at one time?
This is difficult to answer as the public also use. Eg (DFU)
Q9. Performance requirements of storage disks?
(JC) Load testing is planned. 3 Second average for public (DFU) is thought desirable/reasonable.
There is a lot of work to do first around data synchronisation.
(JC) raised Apps Service, (BH)/(SS) believe both are ready. (BH) will find out.
(JC) If possible WMS DMZ live for 1st April.
