Vanda Backup Plan and Business Continuity Plan

6. Vanda Support > Vanda Backup Plan and Business Continuity Plan
Backup Solution
 
 
As Vanda users and valuable customer, we provide you with an option of backup which is part of business continuous plan.
 
Please see the propose network diagram at page 2.
 
There are 3 backup which store the Vanda database.
 
First Backup, the server will serve as first backup. We will partition the hard disk space into 2, Drive C and D. The Vanda application will be stored at Drive C, and a backup copy of database will be stored at Drive D.
 
Second Backup, there is an external backup device attached to the server. The backup device will be used to backup the Vanda database daily.
 
Third Backup, there are two USB mobile hard disks (2.5 inches) attached to the server. One used for Odd day of backup (Monday, Wednesday and Friday), and another one used for even day of backup (Tuesday, Thursday, Saturday). Any of these hard disks is carried with the staffs daily after working office. The main purpose for this additional backup is to make sure that the clinic has 1 copy of backup in case of any disaster happen to the clinic, like fire, or missing of computers. The staff will have to exchange the hard disks any alternative day.
 
We will implement the following schedule for the backup plan,
Incremental and Differential Backup Techniques and Approaches
 
 
 
Day of Week
Weekly Full Backup with Daily Differential Backup
Weekly Full Backup with Daily Incremental Backup
Sunday
A full backup is performed.
A full backup is performed.
Monday
A differential backup contains all changes since Sunday.
An incremental backup contains changes since Sunday.
Tuesday
A differential backup contains all changes since Sunday.
An incremental backup contains changes since Monday.
Wednesday
A differential backup contains all changes since Sunday.
An incremental backup contains changes since Tuesday.
Thursday
A differential backup contains all changes since Sunday.
An incremental backup contains changes since Wednesday.
Friday
A differential backup contains all changes since Sunday.
An incremental backup contains changes since Thursday.
Saturday
A differential backup contains all changes since Sunday.
An incremental backup contains changes since Friday.
 
 
The percentage of 1 server fail is 50%, for second backup device to fail is 25%.
The percentage of servers fail, second backup device and one of third backup device to fail is 12.5%
The percentage of all backup devices to fail is 0 %.
 
With these approaches, the risk is almost 0 %. The clinic database is 99.9 % secure at any times and any scenario.
 
Hardware devices will fail one day. We can’t wait for the day it fails, then, we seek for remedy. It is too risky if there is no prevention in place. The clinic database is very important to daily operation of the clinic. We strongly advise you to take up the above backup plan. If you have any doubt on the approach, please kindly contact us.
 
 
 
 

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