HP D2D100 Backup System - Manual (Page 60)

Host
4/5/6
HP StorageWorks D2D Backup System: 1.5 TB
LAN
Database
Server
10 GB
Desktop PC
250 GB Fileserver
80 GB
Total
242 GB
Mon
Tues
Wed
Thurs
Wk1
Wk2
Wk3
Wk4
Total
150 GB
M5
M6
M7
M8
M9
M10
M11
M12
Wk1
Wk2
Wk3
M1
M2
M3
M4
Total
290 GB
Wk1
Wk1
Tues
Wed
Thurs
Mon
Autoloader
3/4/5/6
Figure 33 Option remains to configure more hosts
High-performance workstation backup
This is a high-performance graphics workstation, used by an architect, who has 250 GB of data that must
be fully backed up every week and approximately 10 GB of changes to be backed up each day. This
data will be backed up to an autoloader configured on the HP D2D Backup System.
Additionally, there is an ‘IMPORTANT’ folder that relates to current, high-priority projects that must be
backed up daily and moved from the HP D2D to physical tape at the end of each week. This data will be
backed up to a standalone tape drive configured on the HP D2D Backup System.
You can specify the number of slots to meet the backup requirements for the workstation when you run the
Installation wizard, or from the Web Management interface after installation. You must use the Devices
page of the Web Management interface to create an additional standalone tape drive device for the
‘IMPORTANT’ folder. (See “ To create a new device ” on page 66 for further details.)
Main backup to autoloader
The data at 250 GB exceeds the disk space that can be allocated to a single slot. Therefore, each
full backup requires two autoloader slots. You must also make sure that tape spanning is enabled
in your backup application.
Number of slots required
Physical disk space required on HP D2D Backup
System
4 x 2 for each full weekly backup
4 x1 incremental daily backups 4 x 250 GB = 1000 GB
4 x 10 GB = 40 GB
12 slots required 1.04 TB
Additional backup to tape drive
The ‘IMPORTANT’ folder starts at 10 GB and has 4 incremental backups to a single cartridge on a
standalone tape drive. The final data size is approximately 60 GB, which is moved from the HP D2D to
physical tape weekly.
60 Backup scenarios using the HP D2D Backup System