Gathering technical requirements
1 like1,610 views
The document discusses various technical requirements to gather during the requirement gathering phase for setting up new or growing customers in a datacenter. It covers questions around network requirements like load balancing, firewalls, subnets; hardware requirements like servers, storage, backups; operating system requirements; and database requirements. The key things to inquire about include load balancing configuration, firewall rules, hardware specifications, operating systems, software dependencies, database versions and clustering.
Gathering technical requirements
- 1. Technical Requirement Gathering – Things that will benefit us as PM’s Presented by: Gaurav, Shiva & Arun
- 2. Introduction This presentation talks about things to inquire during Technical Requirement Gathering Phase while setting up new / growth customer in datacenter.
- 3. Network Requirement Gathering Network Load Balancer Firewall 1. Port mapping 2. SSL termination 3. Persistence / Stickiness 4. Persistance Type 5. Health Check 6. Servers in pool 7. LB Algorithm 1. Subnets 2. Ports to be opened between subnets 3. Ports to be opened from public 4. Ports to be opened to public VPN 1. S2S 2. C2S 3. MPLS 4. RSA (PCI)
- 4. Questions Customer’s application runs on port 80. SSL terminates on LB. What will be LB mapping? Where will certificate be installed? Why do you need LB persistence? What’s the use of LB health checks? Is it possible to set up 2 servers in LB pool such that one server acts as failover of other? Customer has requested to open SSH port (22) from public. What will you do and why? Customer has requested to allow access to database server from outside world. What will you do any why? Customer is using MySQL database. Which port will you open between DMZ and Trust?
- 5. Hardware Requirement Gathering Hardware CPU RAM HDD SAN NAS Partitions File System Number of LUNs / Sizes File System Servers Is Cluster Involved? Type of Cluster Share name / type Servers involved Speed Cores Type Backup Inclusion list (before golive) Type of Cluster
- 6. Questions The SO says 1 quad core CPU. Infra team asks you if 2 dual core would be fine. What will you do and why? Is the C drive partition size for Windows 2003 different from Windows 2008? In SO, hard disk size of VM is specified. Is it total or usable? Customer is requesting for offsite backup. What is the first thing you will check?
- 7. OS Requirement Gathering OS Architecture Version Service Pack / Patching Software Others Standard / Enterprise OS Version 1. Web / App engine / version 3. Third party software / version 4. Installation / Configuration Ownership 1. SMTP requirements 2. Timezone 3. Active Directory requirement 4. DNS 5. PCI 6. FTP 32 / 64 bit 1. Any dependency
- 8. Questions Customer wants to park DNS with us. They need admin interface for updating DNS records as well. What is your response? Customer wants to upload huge quantity of data on servers. What should you do? List few application engines.
- 9. Database Requirement Gathering Database Oracle 1. Version 2. 32 / 64 bit 3. Cluster Type (RH, Replication, Clustering) 1. Version 2. 32 / 64 bit 3. Std / Ent 4. Cluster Type 5. Patches / SP level MSSQL MySQL 1. Version 2. 32 / 64 bit 3. Std / Ent 4. RAC / ODG / RAC + ODG 5. Patches
- 10. Questions Customer wants 2 MSSQL databases across DC’s to be one way synchronized on periodic basis. Which method will you use? SO says MSSQL Cluster and Windows 2008 Standard OS. Is there anything wrong with specification?
- 11. Exercise List the type of LB persistence. List the type of LB health checks.
- 12. Others Expected growth No of customers Bandwidth Data size, database