Backup Server Machine Platforms; Strategies For Faster Jobs; Organizing Machines Into Workgroups - HP BB118BV - StorageWorks Data Protector Express Package User's Manual & Technical Reference

You assume that only 10% of the files actually change between incremental backups. You store a disaster
recovery image for each of the computers in the domain.
You can estimate the size of your catalog as follows ...
File object space = (500,000 + 10 * 10,000) * 782 bytes = 447MB
Version object space = [(17 * (500,000 + 10 * 10,000)) + (8 * (500,000 + 10 * 10,000) * 0.10))] *
61 bytes = 621MB
Temporary space = (500,000 + 10 * 10,000) * 348 bytes = 199MB
Disaster Recovery image space = (6 * 80MB) + (5 * 200MB) = 1,480MB
Catalog size = 447MB + 621MB + 199MB + 1,480MB = ~2,750MB

Backup Server machine platforms

Finally, consider both the operating system and the hardware of the machine that will contain the Backup
Server. For multi-user network installations, we recommend placing the catalog on a high-speed,
high-capacity server. For example, in a Windows environment, place the catalog on a Windows server
that has a fairly current CPU and adequate RAM.
For single machine installations, Data Protector Express runs adequately under Windows, NetWare,
and Linux.

Strategies for Faster Jobs

Data Protector Express is designed to run jobs quickly and efficiently on various network platforms and
arrangements. This section will help you plan your backup strategy and network installation to maximize
Data Protector Express speed and efficiency.

Organizing machines into workgroups

One strategy for speeding up jobs is to organize machines into workgroups. A workgroup is merely
a folder that contains one or more machines. Once included in a workgroup, files and data on these
machines can be selected together simultaneously in backup job selection list.
If your Data Protector Express management domain includes many machines on a large network with
media servers scattered across sub-nets, you can speed up jobs by grouping machines on one sub-net
together in a workgroup and pointing jobs related to these machines to devices also located on the same
sub-net. Since transferring data across a network from one sub-net to another takes longer than data
transferred within a single sub-net, these jobs will be faster. To set up a workgroup, follow these steps:
To set up a workgroup
1. From the Administration desk bar, select Catalog.
2. Locate the Network in the hierarchical tree view.
3. In the main object detail area of the screen, right-click and select the New command.
4. Enter a name for the workgroup and click OK.
The new workgroup will be listed under Network along with any machines in the Data Protector
Express management domain.
5.
One by one, select each machine that you want to include in the workgroup.
6.
Right-click the machine and select the Move command.
7.
Select a destination under the Network and click OK .
The next time you set up a backup job (or other job), the workgroup you created will be available on
the Selection page of the job.
User's Guide and Technical Reference
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