HP 12000 Design Manual page 117

Figure 52 VLS Sizing Example 1
Database Full Backup size 15TB – 1% change rate
File System Full backup Size 5TB – Typical incremental size of 10%
Replication Window 24 Hours
Required Link speed 40% of existing 200Mbit/sec link
This example shows a 15 TB full database backup and 10% incremental backup of file system
data to replicate daily between sites. There is already a 200Mbit/sec link between sites. The
actual amount of data to replicate is 164 GB (representing 15 TB full database backup and
10% incremental of 5 TB File system backup). Using bandwidth throttling at a rate of 40% of
the 200Mbit/sec link, you can easily accomplish the backup and replication within 24 hours
without impacting application performance using the same WAN link.
2. Sizing Scenario: 66 TB of database and file-system replication.
Figure 53 VLS Sizing Example 2
Database Full Backup size 50TB – 1% change rate
File System Full backup Size 16.6 TB – This example replicates one of the incremental
backups, size of 10%
Replication Window 24 hours
Design Considerations 1 17