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We define five tiers of servers. No product requires all five. Five are the maximum. A product will likely have several servers for different purposes in each tier.
- Prototype (proto): In ISDA's colocation rack. Defined as temporary, try-out, crash-and-burn systems.
- Development: Virtualized via Server Operations' virtualization service. The environment for developers to perform their project work.
- Test: Virtualized via Server Operaions virtualization service. The environment for internal ISDA testing.
- Staging: Real production hardware via Server Operations standard offerings. For products that require it, this is for external developers or other end-users to test their integration. ISDA treats these as production. The configuration of this system is always identical to production.
- Production: Real production hardware via Server Operatons standard offerings. This is the live system.
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| Wiki Markup |
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A hostname is composed of three call signs separated by hyphens. The last call sign is appended with a number to indicate the number of hosts in service for that tier. It ends up taking the form as \[product\] - \[tier\] - \[type\]\[number\], for instance "cms - dev - wcm1" or "map - prod - ws1". Each call sign is 2 to 5 characters. |
Product and Type Calls Signs
- map: MIT Application Platform
- ts: Touchstone, single sign-on (example map-test-ts1)
- ws: web-services environments (example: map-dev-ws1)
- cms: content-managment system
- stlr: Stellar course-management system (example cms-test-stlr2)
- th: Thalia image management (example cms-dev-th1)
Production Servers
Wiki Markup Naming Convention: \[product\]-prod-\[service\].mit.edu. Example: map-prod-ws1.mit.edu
- Server Ops maintained physical hardware. No virtualization.
- Assume that each service requires at least two load-balanced servers.
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product: A 2 to 5 letter call sign for either a product group (such as map for MIT Application Platform) or a Meta-Project that has other Projects as its components (Project Athena, Project Minerva). **
map: MIT Application Platform (map-test-ws1)
cms: content management system
ws: Web Services (map-prod-ws2)
ts: Touchstone (map-dev-ts1)
th: Thalia (cms-proto-th1)
** The previous convention was to use the department name in this spot, such as ISDA. However, these change often, but product or project names change less often. Also note that Athena servers are generally maintained by Server Operations, which has their own naming scheme and set of host organization policies.