1. Introduction and approval process
Why are we here?
Use of RAID in DRP
Agree recommendation
Start the implementation
Copyright State of New South Wales, Department of Education and Training, 2005

2. Importance of RAID Disks are a weak link Data is obtained in real-time
Backup data is out of date
Need fault tolerance
RAID protects against a disk failure
Copyright State of New South Wales, Department of Education and Training, 2005

3. What the impact may be No disk = no system No system = no orders
No orders = no income
No income = no profit
No profit = NO GOOD!
Copyright State of New South Wales, Department of Education and Training, 2005

4. Real life Example(s) of problem suffered
Disk died two months ago
Took 3 hours to get replacement
1 hour to install
4 hours to rebuild from backup
Lost one day’s income
Copyright State of New South Wales, Department of Education and Training, 2005

5. What RAID will give us Fault tolerance as regards disk drives
Improved performance
No down time for single disk failure
Hot swap to replace faulty disk
Copyright State of New South Wales, Department of Education and Training, 2005

6. Threats to be safeguarded against
Disk failure
Multiple controllers also guard against disk controller failure
Duplicate power supply guards against power supply failure
If system unit goes down RAID may be quickly connected to another unit.
Copyright State of New South Wales, Department of Education and Training, 2005

7. Cost benefit analysis Orders placed on the web = $100,000 per day
Assume 50% would go elsewhere if our system down
Loss = $50,000
RAID costs only $12,000
Copyright State of New South Wales, Department of Education and Training, 2005

8. How RAID supports the business
24X7 operation is a business strategy
99.9% uptime is a SLA requirement
RAID provides fault tolerance to meet these requirements
Copyright State of New South Wales, Department of Education and Training, 2005

9. Recommendations Approve the use of RAID in server
Make RAID a standard for all future servers
Approve purchase of XYZ RAID system
Install in current server
Copyright State of New South Wales, Department of Education and Training, 2005

10. Action plan Finalise costs with supplier Place order Take delivery
Test system on development server
Install on production machine
Monitor performance and reliability
Copyright State of New South Wales, Department of Education and Training, 2005

11. Conclusion and call for approval
RAID is an essential part of DRP strategy
Cost effective solution
Relatively easy to implement
Tried and tested technology
Copyright State of New South Wales, Department of Education and Training, 2005