Lucent, OMD Factors (cont.)
Computing Network Factors
- Users do not have root access
- No root access across the network
Operational Factors
- Small system administration team
- 24 x 7 operation (except for backups)
- Downtime limited to one weekend (preferably one day) per quarter
- All major outages happen in the same downtime (network changes, OS upgrades, etc.)